hubbell hot metal detectors - jps design grouphubbell’s hot metal detectors (hmd) sense the...

HUBBELL

2 – 3 Applications

4 Self-Contained vs. Remote

5 Lens Options

6 – 7 Infrared Considerations

8 Mounting Considerations

9 Cooling & Purge Options

10 – 11 Lens & Switching Level Guidance

12 – 13 Ordering Procedure

14 – 15 Electrical Options

16 General Specifications

17 – 19 Accessories

20 Dimensional Illustrations

21 Emissivity Factors

22 – 23 Specification Form

98/9

900

Mar

ch 1

993

Controller Module in Mounting Cradle

HMDhot metal detectors

Cast Housing

Quartz Lens Housing

Remote Tubular Lens with Optical Lead

Specifier’s Catalog

March 1993

AApplicationsHubbell’s Hot Metal Detectors (HMD)sense the infrared radiation emittedfrom hot products via a lens system ontoa photoelectric-diode. This activates aswitched output once the infrared radi-ation exceeds a preset level.

Hubbell’s design goals were to developa modular unit that utilized the latesttechnology constructed to work in theseverest of applications.

Fulfilling these goals led Hubbell to de-sign both a self-contained unit in a castaluminum housing and a remote con-trolled unit with separate lens. By utiliz-ing a modular assembly throughout thedesign process, Hubbell’s HMD assem-blies offer simplified setup, adjustmentand maintenance. Further, this type ofapproach facilitates the replacement ofindividual components in the field usingstandard tools.

By utilizing the latest electronic technol-ogies, they were able to develop a hotmetal detector with superior sensitivityin a durable housing. In particular, Hub-bell’s HMDs are resistant to water,steam, most chemicals, wide variationsof ambient temperatures and severevibrations.

As in many mills, HMDs are a prime in-put to process controls. Hubbell has in-troduced an optional supplementaryanalog output (non-linear). This allowsthe user to identify dirty lenses, andsporadic performance. Also, the analogoutput and a basic light source can beused to align the detectors without in-volving a hot product.

Combining these features, well engi-neered installations, and a complete lineof accessories, Hubbell’s Hot Metal De-tectors are especially suited to give longand trouble free operation in almost anyenvironment.

• Trip levels as low as 575°F

• Excellent steam penetration

• Sensing ranges in excess of 70 feet

• Wide variety of interchangeable lenses

• Remote lenses and optic leads for350°F or 750°F ambients.

• Optional analog output to facilitate alignmentand maintenance

• Efficient cooling and purge options

• AC & DC detectors with single or dual switchingoutputs

• Protected against continuous short circuit

• Optional internal testing circuit

HMDHMD

HotMetal

Detectors

3

HUBBELL

March 1993

A note about this catalog...Unlike other catalogs that you might befamiliar with, this catalog is designed likea workbook to get you to the correct an-swer quickly. Each section of the cata-log supplies the technical informationneeded to answer a portion of the deci-sion tree shown on pages 12 & 13. Onceyou have determined the part numberfrom this decision tree, you need onlyto look it up in the accompanying pricelist. This approach assures that you willbe ordering the correct product everytime for your application. So please takea few minutes and read this catalogcompletely.

These illustrations show several remotemounted Infrared Hot Metal Detectors in useon a billet mill. The unit mounted on top of thestand is a 0.5° x 10° Cast Lens Housing and it isbeing used to measure the length of the slabs.A Tubular Lens Housing is mounted on the sideof the stand and is measuring the roughheights of the slabs. Notice how the controlleris mounted behind the stand to protect it fromradiant heat.

March 1993

S Hubbell’s Hot Metal Detectors are of-fered in two different physical configu-rations — Self-Contained Units and Re-mote Controlled Units.

The Self-Contained HMDs are unitsconstructed around the cast aluminumhousing. The lens, electronics andswitching circuitry are entirely enclosedin this single housing. This type of hous-ing offers the following features:

• Alignment gunsight

• Simple installation

• No extra optical cables to mount

The Remote Controlled HMDs, in con-trast, are constructed around a separatehousing for the electronics and switch-ing circuitry that is connected to the lenshousing via an armored flexible fiberoptic cable. Remote lenses and theiroptical leads can be mounted in areaswith high ambient temperatures. Thistype of setup offers features that couldbetter fit your application:

• Small lens housings for tightinstallations

• The electronics can be locatedin an easily accessible area

• The ability to view hot productclosely and accurately whileplacing electronics in well pro-tected area

No matter which configuration you se-lect for your application, Hubbell’sHMDs offer adjustable sensitivity thatcan be used to vary the trip level of eachdevice by ±50°F. This allows Hubbell’sHMDs to detect a range of target tem-peratures from +575°F (+300°C) to+2000°F (+1000°C) or higher.

All of Hubbell’s HMDs can be configuredwith the field of view, electronic switch-ing capability, and infrared set points tomeet your application.

Self-Contained vs. RemoteS e l f - C o n t a i n e dC o n f i g u r a t i o n

Remote ControlledC o n f i g u r a t i o n

H U B B E L L216/428-1161

hubbell industrial controls, inc. Infrared SensorType Switching Level Viewing Angle

HUBBELL

Supply/Output

StandardAir Purge &CoolantInlet

OptionalWater Outlet

Power LED (R)

Power/OutputCable or Plug

Optics &Purge Outlet

GunsightElectricalPackage

Sensitivity TripLevel Adjustment(is located in one

of these positions)

Function LED (R) Short Circuit LED (A)

Optics

Fiber Optic Cable

TubularLens Housing

��

Quartz Rod

Fiber Optic Cable

QuartzLens Housing

HU

BB

EL

L216/428-1161

hubbell industrial controls, inc.Infrared S

ensorT

ypeS

witching Level

View

ing Angle

HU

BB

EL

L

Supply/O

utput

Air Purge &Coolant Inlet

OptionalWater Outlet Fiber Optic Cable

Optics &Purge Outlet

Gunsight

CastLens Housing(350°F/175°C Ambient) (350°F/175°C or 750°F/400°C Ambient)

See Accessories forPurge & Coolant Options

(750°F/400°C to 1800°F/980°C Ambient)

ShieldingTube

216/428-1161

hubbell industrial controls, inc.Controller

TypeSupply VoltageMax. Load Current

HUBBELL

Sensitivity Adjustment

Power/OutputPlug Connection Fiber Optic

Connection

��

Fiber OpticCable & Plug

ElectricalModule

Controller

Power LED (R)

Function LED (R)

Short Circuit LED (A)

(150°F/65°C Ambient)

MountingCradle & Shield

Quick ReleaseLocking Bolt(Secures the Controllerto the Mounting Cradle)

��

Note — LEDs – (A) is a light amber colored LED and (R) is a red colored LED. The Short Circuit LED islight when a short circuit is encountered. The Power LED is light when power is “On” to the HMD. TheFunction LED is light when the HMD detects an object.

HMDHMD

HotMetal

Detectors

5

HUBBELL

March 1993

LHubbell's HMD lens come in two for-mats with various fields of view. First,there are the remote lens which in-cludes a stainless steel tubular housingwith various circular field of views, aquartz rod lens with a stainless steelshielded probe and an aluminium castlens housing with a rectangular field ofview. Secondly, this same cast housingis used for the self-contained detectorwith interchangeable lens modules.

These lens housings were designedwith Hubbell’s commitment to modulartechniques. Their construction allowsthe user to interchange the lens module,regardless whether it is a self containedor remote format, and obtain the exactlens arrangement to suit each applica-tion. Because of these alternatives andthe varied field of views, it is possible toaccommodate the monitoring of bothlarge and small product at close proxim-

ity or at substantial distances. Even hotproducts that deviate greatly from thecenter of the conveyor system can bemonitored with the correct lens arrange-ment (i.e. 0.5° x 25°).

A summary of the lens features areshown in the table below. Line drawingsof the various housing shapes areshown on the previous page.

The Remote Tubular Lens Housing isavailable in field of views from 1° to 20°.The name clearly describes the con-struction of the housing — a cylindricalstainless steel tube with a recessedlens. All the components in the housingincluding the housing itself can be re-placed in the field. All tubular housingsuse the same fiber optic cable in lengthsavailable up to 8 meters. A dimensionalillustration of the tubular lens is shownon page␣ 20.

Lens OptionsThe second housing style, RemoteQuartz Housing, only available with 1°field of view, is specifically designed tohandle high ambient temperatures,≤1800°F (≤1000°C), with radiant temper-atures of ≤2200°F (≤1200°C). It also isvery effective in areas of severe contam-ination. It is only available for remotecontrolled units. See page 20 for dimen-sions.

The third housing style, Cast Housing,is available in field of views from 1° to7° plus rectangular field of views of0.5°␣ x 5°, 0.5° x 10° and 0.5° x 25°. Theserectangular fields of view are only avail-able in this housing when used as a selfcontained unit. The housing dimensionsare show on page 20 and are identicalfor either self-contained or remote con-trolled units.

2 3 6 7 8

Field of View

Scanned Area@ 3 feet

Lens Length

4° 7° 0.5° x 25°0.5° x 10°0.5° x 5°

3"(70)

5"(120)

0.5" x 20"(10 x 500)

4.33"(110)

3.15"(80)

7.48"(190)

0.5" x 8"(10 x 200)

0.5" x 4"(10 x 100)

7.48"(190)

7.48"(190)

4 5

12° 20°

8"(210)

14"(340)

4.33"(110)

3.15"(80)

Lens Size

1°

1

1"(20)

7.48"(190)

RemoteTub. Housing

RemoteCast Housing

Self-ContainedCast Housing

✓ ✓ ✓ ✓ ✓

✓ ✓✓

✓ ✓ ✓

✓ ✓ ✓

❖

❖ The Quartz Lens has approximate field of view of 1° and requires a 650°F controller and switches at 850°F (450°C).

Note — All dimensions are in inches with millimeteres in the parentheses unless otherwise noted.

9

2°

2"(60)

5.12"(130)

✓

✓

March 1993

IInfrared ConsiderationsHubbell’s Hot Metal Detectors areprecalibrated to switch according to theamount of infrared radiation being emit-ted from the hot product. The point ofswitching is dependent upon the follow-ing factors:

• The type and texture of the tar-get material being viewed

• The amount of hot productwithin the scanned viewing area

• Cold black spots and backgroundinfrared radiation

• Obstructions in the scannedviewing area (steam, water, etc.)

In this section, we will cover thesepoints and their affect.

Target Properties

Hubbell’s HMDs receive infrared ener-gy that is produced by many hot prod-ucts. Infrared radiation is produced as amaterial is heated. As the target be-comes hotter, the spectrum of this infra-red radiation widens and the level of in-frared radiation increases until it beginsto include portions of the visible lightspectrum. This is why metals begin toglow red as they are heated.

Every material emits different levels andquantities of infrared radiation. Also, theamount of radiation emitted is related tothe surface condition of the material. Asthe material becomes more oxidized,the infrared radiation levels increase;meaning, a highly smooth, clean surfacewill emit less radiation.

To demonstrate these concepts, bothindependently and together, we’ve in-cluded several charts on page 21. Thefirst table shows emissivity factors fordifferent materials. The emissivity of agiven material is the measurement of itsenergy radiating efficiency. Thoughemissivity is not used to set Hubbell’sHMD detection or trip levels, they dogive the layman a reference point forwhich materials will emit the most infra-red radiation. The second table showshow the emissivity for steel increasesas the surface becomes more oxidized.

Field of View & IR

With a specific lens arrangement, thearea being scanned increases as the dis-tance increases between the detectorand the target. Equally, the intensity andproportion of the infrared radiation rela-tive to the field of view decreases as thedistance increases.

Considering these factors, optimumperformance is normally obtained bymounting the HMD as close to the tar-get as practical and selecting a lensthat allows the target to fill a 100% ofits field of view. Theoretically, at a scan-

ning distance of 30 feet a 7° field of viewwill require a target to be nearly four feetin diameter.

A detector set a little over 10 feet directlyabove the target using a 0.5° x 25° fieldof view will scan an area that is only 1”wide by 55” tall. This type of field of viewgives a very complete coverage of aconveyor system that might not havethe target moving down the center of it.This narrow scanning path offers the ac-curacy needed to gauge lengths of steelproducts.

It is important to note that the trip lev-els stated for the HMDs are based onthe targets filling 100% of that view. Tar-gets can be smaller than the field of view(down to 0.5% of FOV) and still be sensedaccurately. This is done by selecting a de-tector with a much lower trip level thanthe hot product’s actual temperature.

It is normal practice, regardless of thesize of the target, to select a HMD witha trip level 200°F to 400°F lower thanthe actual temperature of the target.

The graphs right and below show the re-lationship between distance and field ofview for both spot and rectangular FOVs.

Rectangular Field of View

Target Distance is 3 feet — Area being scanned is 1.3' (H) x 0.03' (W)Target Distance is 15 feet — Area being scanned is 6.7' (H) x 0.13' (W)Target Distance is 30 feet — Area being scanned is 13.3' (H) x 0.26' (W)

cLGunsight& Opticals


Width

Hei

ght

Distance

for a 0.5° x 25° Cast Lens Housing

15°

10°

This illustration shows the relationshipbetween distance of the object and thefield of view for a 0.5° x 25° lens.

HMDHMD

HotMetal

Detectors

7

HUBBELL

March 1993

Cold Spots, Background InfraredRadiation and Obstructed View

Three common problems with infrareddetection are caused by cold spots onthe target, background IR and obstruct-ed view.

Cold spots occur on the target throughlocalized cooling due to water collection.This especially happens along the edg-es of the target. These cold spots cancause intermittent switching of the de-tector. This problem is most prominentin rod and wire mills where the targetsize can be extremely small (<0.25”ø)and several drops of water would sub-stantially cool the entire diameter.

The solution for this type of problem isfound in two formats. First, you could

install two HMDs in tandem scanning ar-eas that are only several inches apart.When both units give the same “off”signal then the target is accepted asbeing no longer in front of the detectors.The second solution is to use a 575°Fcontroller to scan a 1100°F target withonly a small portion of the field of viewfilled with the target. With this type ofarrangement, a small cold spot will notaffect the detector’s logic. Hubbell’sHMDs are unique in offering very highsensitivity to overcome this problem.

The second problem, background in-frared radiation (IR), is caused by awide variety of sources. The additionalIR can come from infrared energybouncing off the sides of the conveyorsystem, hot equipment in the back-

ground, and evensunshine directlyhitting the detec-tor. This type ofproblem is diffi-cult to predictand is substan-tially minimizedby filters withinHubbell’s HMDs.

Usually, the solu-tion to this prob-lem comes fromseveral sources.First, you can con-trol the field ofview of the HMDso that the back-ground source isnot seen by thedetector. Second-ly, you can repo-sition the detec-

tor so that it cannot see the source ofthe IR. Lastly, if the IR comes from anindependent line or light source, you canshield the HMD with a simple barrier.

The third problem, obstructed view,again comes from a wide variety ofsources. The sides of the conveyor sys-tem can obstruct the view, and so canwater or steam. Steam, in particular, caneither absorb the IR, greatly reducingthe signal, or reflect the IR, increasingthe signal.

The solution to this problem requiresonly common sense. Remember, youare reading and measuring an energysource. The detector needs a clear pathto the target. If the sides of the convey-or system are tall, the detector will needto be mounted higher. As well, if theconveyor system uses an open rollerbed, you can mount the detector be-neath the roller bed and look up throughit. If you have a high steam concentra-tion, the air purge on the lens housingcan be increased to clear a pathway. Inall cases, mounting the lens as close tothe target as possible will clearly mini-mize this problem. This is the advantageof the remote lens housings.

Fiber Optic Cable Lengths

A final note on fiber optic cables. Theyare sheathed in a flexible stainless steeljacket. Hubbell can supply the specificlength of fiber optic cable you need foryour installation. However with especial-ly long cables, you need to consider thelight/energy loss in the optical cable. Foreach additional meter of fiber optic ca-ble over a total 3 meter length, the ef-fective trip level of the utilized control-ler will be reduced 85°F (30°C).

10

15

20

25

30

5

Dis

tan

ce F

rom

Targ

et

0.5

1.0

1.5

Radius of Field of View

All Dimensions in Feet

7° FOV4° FOV 1° FOV

2.0

0.5

1.0

1.5

2.0

Circular Field of View

This illustrationshows therelationshipbetweendistance of theobject and thefield of view ofvarious sizelenses.

March 1993

MMountingConsiderationsTo help consolidate the informationpresented on the previous pages, wehave developed several illustrations.The illustration below shows threetypical positions for HMDs. At eachposition, advantages and special con-siderations that must be recognizedare identified.

The illustration to the right is “problem␣ –solution” orientated. Utilizing Hubbell’sexperience with HMDs, the most com-mon problems encountered with HMDs

during installation were compiled withtheir solutions.

These illustrations encompass a largemajority of the installations usually en-countered. The suggestions given bythem apply to all lens housings and willhelp you to select the correct field ofview and position for Hubbell’s HMDs.If you need special help with any in-stallation, Hubbell has application en-gineers to assist you.

Above Viewing PositionThe detector is getting a clear view of the target.The only possible sources of background IR couldbe the roller bed itself or reflected IR from thefloor pan area. With this in mind, the HMDs arenormally mounted to the ouput side of a roller oralternatively a slot is cut in the floor pan greaterthan the field of view of the detector. In this position, cooling of the detector will need carefulconsideration and must be mounted well above the product.

SideViewing PositionThe detector must have a clear view of the target. The nearest sidewall should be cut away to clear the field of view of the detector. Again the opposing wall may need a slot to avoid reflected IR. In addition, there are some sources of background IR — Side Guards, Other Assy. Lines in the background, etc. However, this position gives excellent shielding from radiating heat.

AngledViewing PositionThe detector does have a clear view of the target. However, careful consideration must bemade of background IR. Somesources for background IR areSide Guards, Other Assy. Lines inthe background, as well as, thefloor pan. This position reduces the heat radiating on the detector.

25° FOV

5° or 10° FOV

Background IR andObstruction by

Side Guides

Move the lens closer to the center line of the product line and restrict the field of view.

Reflective IR

Multiple Targets & Reflective IR

Move detector above product line and restrict field of view to limit viewing of multiple targets. As an alternative, you can position thedetector 90° to product line andtake advantage of 0.5° FOV. To remove reflective IR, cut an opening in floor pan.

7° FOV

1° to 4° FOV

AlternatePosition0.5° x 25° FOV

Cut a slot in opposing side guide to remove reflective IR or place a shutter plate between detector and hot side guide.

HMDHMD

HotMetal

Detectors

9

HUBBELL

March 1993

CCooling & PurgeOptionsObviously where high ambient temper-atures are present, remote lensesshould be considered. This removes thenecessity to provide water coolingwhich is costly to install and maintain.

However, often self-contained or evenremote lenses are installed in areas withambient temperatures above the al-lowed limits. Hubbell’s Hot Metal Detec-tors and Remote Lens Housings can besupplied with cooling and purge optionsto protect them from radiant and ambi-ent heat, as well as contamination.

All of Hubbell’s HMDs can be equippedwith air purge/cooling systems or watercooling systems. These cooling andpurge systems allow the detector andlens to be installed in areas having ex-treme ambient temperatures. Left are il-lustrations showing some of the coolingschemes that are available.

When air is used as the coolant on thecast housings, the user has the optionto order the detector with the cooling airbeing recirculated or alternatively vent-ed through the front as a lens purge. Aircooling typically will offer a +70°F to+85°F of cooling. An air flow of 1 ft3/minto 2 ft3/min at 10 psi should be used. Forsevere conditions, 5 ft3/min at 15 psi canbe used.

Water cooling of the cast housings isaccomplished by a built-in closed loopradiator cooling chamber. When utilizingwater cooling, the water pressureshould be no more than 10 psi with aflow of 0.5 gpm (minimum flow of 0.2gpm). The cooling capabilities of watercan be calculated with the equationsshown below.

In severe conditions, an air purge noz-zle is added to the cast housing in frontof the lens glass to help direct the purgeand prevent impurities from contaminat-ing the lens. This purge nozzle can alsobe added to purely enhance the purgepressure and further protect the lens.

The air and water cooling connectionsare 5⁄16"ø ID tubing connectors which al-lows for easy installations. The remotetubular lenses are mounted as modulesin the purge/cooling chamber allowingquick removal.

The recommended tubing to be usedwith this type of connector is either5⁄16"ø␣ ID Tygon® Black Fluran tubing or1⁄4"ø NPT (M) Teflon® PFA pipe. Both areavailable in a variety of lengths, and canbe fitted with readily available fittingsand valves. In general, both of thesetypes of tubing have a working range of-40°F (-40°C) to +400°F (+200°C), aworking pressures of 125 psi and con-form to many federal specifications.

For Cast Housing

For Tubular Housing

Cooled SensorTemperature =

(Sensor Ambient + (2 x Water Inlet Temperature))

2

Cooled SensorTemperature =

(Sensor Ambient + (2 x Water Inlet Temperature))

3

Note — Only the back panel is cooled and radiant heat should be shielded from the front panel.

Water Cooling Capacity Equations

Air Inlet

Air

Air Purged/Cooled Standard Tubular LensMounting Block

��Air

Air Purged Tubular Lens Mounting Bracket

Air

Water(hot)

Wate

r

(cool)

� �

�

Air Purged/Water Cooled Tubular Lens MountingBracket

Air Inlet

Air

Illustrated above is the cooling paths for combinedair purge/cooling arrangement for self-containedand remote housings.

Air/Water Inlet

Water Outlet

Water

Water(hot)

(cool)

Air

Illustrated above is the cooling paths for watercooling with separate air purge for the lens on theself-contained and remote lens. Note the nozzleon the left end is added for severe conditions.

March 1993

LLens & SwitchingLevel GuidanceUnlike pyrometers and proximity sen-sors, the process of selecting the prop-er lens and switching level for HMDs isnot as specific, though in most cases itis fairly straightforward. Many differentworking combinations are possible. Inthis section, we’ll give you guidance onwhich lens/switching level combinationsshould be used in various installationsand why.

Important Note — All of the followingdiscussions are based on several keyfacts. First, the target material is steel.If your material is something other thansteel you can use the emissivity table onpage 21 to determine the difference inthe infrared energy. Emissivity is a lin-ear variable; meaning that if your mate-rial has an emissivity 10% lower thansteel, you will need to select a control-ler temperature that is 10% lower. Sec-ond, remember that you need to reducethe controller temperature by 85°F(30°C) for every meter of fiber optic ca-ble over 3␣ meters in length.

Which Lens To Use

If the sole purpose of the installation isthe general tracking of hot product thatis traveling down the center of the con-veyor system, a 7° spot lens is normallyadequate. The 4°spot lens, on theother hand, isused for similarinstallations thatrequire a restrict-ed field of viewdue to back-ground IR, etc.The 1° or 2° spotlens is normallyused in installa-tions where thelens is going to beset a substantialdistance from thetarget. Both the12° and 20° spotlens are used ininstallations thatrequire a largefield of view

along both axes. An example of thiswould be on the cooling bed of a platemill or a long length of rod with cold spotsthat oscillates about the center of theconveyor system.

The 0.5° x 25° lens (which can be shut-tered to 5° or 10°) is used for the follow-ing applications:

• To give accurate length mea-surements

• To view a narrow target oscillat-ing about the center of the con-veyor system

• To restrict viewing on one axis

• To detect the whole width ofthe target

• To detect the leading edge of awide target regardless of its pro-file

• Speed measurement of smalldisplacements in time

The 1° quartz lens rod is specifically de-signed for high temperature installationswhere the lens module is located veryclose to the hot target. Remember, ithas only a 1° circular field of view andwill not scan a large area even at sever-al meters.

Detector Trip Level

When selecting the detector trip level,you should select a trip level lower thanthe target temperature. For example,when detecting hot strip-billet at 1100°Fto 1500°F, you should use a controllertrip level temperature of 950°. If the tar-get was above 1650°F, then a 1100° triplevel should be considered.

This approach to selecting trip levels in-troduces a safety margin for those in-stances when there is steam or localizedcold spots in the field of view.A word of caution — by using this ap-proach, it is important to take in con-sideration background and reflectiveIR in your installation.

Partial Field of View

In many instances the target will notcompletely fill the field of view of thelens. This resulting partial field of viewlimits the amount of infrared energy re-ceived and will require you to select alower temperature controller. Using apartial field of view and a low tempera-ture controller, you can achieve highlysensitive and accurate installations.

Hubbell has included several tables andgraphs that are used to determine which

Graph 2 – Temperature Delta vs.Minimum Field of Viewfor use with spot lenses

Graph 1 – Effective Trip Level vs.Field of Viewfor use with spot lenses

°F

200°

400°

600°

800°

0°10% 100%

Minumum % of Field of ViewNeeded with Hot Product

Dif

fere

nce

be

twe

en

Pro

du

ct

Te

mp

– T

rip

Le

ve

l T

em

p.

1500°1100°950°750°650°

1500°1100°950°750°650°

% of Field of View Filledwith Hot Product

De

cre

ase

in

Tri

p L

ev

el

°F

200°

400°

600°

800°

0°10% 100%

HMDHMD

HotMetal

Detectors

11

HUBBELL

March 1993

controllers work best. These tables andcharts are meant as guidelines only.

Tables 1 & 2 are used with 0.5° x 25°lenses. Table 1 shows approximate con-troller temperatures needed based onthe type of product and its temperature.This table supplies a very broad over-view of various applications. For exam-ple, billet at 1300°F can be detected witha 750° controller.

Table 2 shows the minimum verticalfield of view necessary for various tar-get and controller temperature combina-tions. For example, a target at 950°F canbe detected when only 1% of the verti-cal field of view is filled using a 650°controller. If you are using a shutteredlens, calculate your vertical field of viewusing 25°.

Graphs 1 and 2 are used with the spotlenses. Graph 1 shows the temperaturereduction necessary in selecting a con-troller for a partial field of view. For ex-ample, our target is 1300°F and the tar-get will fill the field of view of the spotlens only 10%. Graph 1 shows we willneed to select a controller temperature300°F lower than the target or use a950° controller.

Graph 2 shows the minimum field ofview necessary based on the differencebetween the controller trip level and theproduct temperature. For example,we’ve decided to use a 650° controllerand our target is 1100°F. Our target is450° hotter than the controller. From thegraph, we see that we need only a min-imum of 1% of the field of view to getproper detection.

Table 1 – Detector/Controller Selection by Product Typefor use with 0.5° x 25° lenses

Table 2 – Minimum Field of Viewfor use with 0.5° x 25° lenses

Graph 3 –Adjustment Rangeof Controllers

The graph right shows thenominal set points ofcontrollers (triangle) and therange of adjustment that isavailable for each controllervia the sensitivity adjustment(dark gray bars). The lightgray bars show the detectionrange for each controller.These are only approximates.

Rod/Wire

Bar/Sections

Bloom/Slab

Billets

Strip/Plate

650°F

650°F

650°F

750°F

750°F

650°F

750°F

950°F

Below 950°F 1100°F –␣ 1500°F

Typ

e o

f M

ill

750°F

750°F

❖ – with no black, cold spots

Above 1500°F❖

750°F

950°F

950°F

1100°F

1100°F

Product Temperature Range

750°F (400°C)

850°F (450°C)

1500°F (800°C)

950°F (500°C)

1100°F (600°C)

9%

5%

1%

1/2%

less than 1/2%

N/D

20%

less than 5%

650°F 750°F

Ste

el T

emp

.

100%

60%

% of Vertical field of view required for 0.5° x 25° lens with 3 meters fishtail optic lead or 0.5° x 10° with 2 meters optic lead. Where site requirements necessitate incorporating longer lengths of optic lead, for each additional meter length above 3 meters add 30°C to stated steel temperature.

Self-Contained Sensors — 15% increased efficiency; 4° & 7° lens’ — 30% increased efficiency.

1100°F 1500°F

N/D N/D

N/D N/D

N/D N/D

100% N/D

60% 100%

Detector Trip Level

N/D — Not Detectable

950°F

N/D

N/D

100%

60%

40%

650°F

600°F300°C

900°F500°C

1200°F650°C

1500°F800°C

750°F

950°F

1100°F

1500°F

Co

ntr

oller

No

min

al Tri

p L

evel

Product Temperature

350°C

400°C

500°C

600°C

800°C

March 1993

OO

rder

ing P

roce

dure

9

2°

Self-ContainedUnit

➥

➥

➥➥

➥➥

➥➥

➥➥

➥➥

➥➥

➥

➥

➥

➥

➥

➥➥

➥➥

➥

➥

Do you need a self-contained

or remote controlled unit?

Enter

Enter

See Page 4

8

9

1Step

Enter

Enter

Enter

Enter

Enter

Q

H

F

T

X

See Page 5

If you specified a remote lens,

what type of lens housing do you

need?

Step 3

Self-ContainedUnit

Tubular LensHousing

350°F Amb.1°, 2°, 4°, 7°, 12°, 20° FOV

CastLens Housing

350°F Amb.0.5° x 5°/10°/25° FOV

Quartz LensHousing

High Temp.Tubular Lens

Housing750°F Amb.

1°, 2°, 4°, 7°, 12°, 20° FOV

8

6

4

3

2

X

Enter

Enter

Enter

Enter

Enter

Enter

2 Meters

3 Meters

4 Meters

6 Meters

8 Meters

Step 5

See Page 5

If you specified a remote lens, what length of

fiber optic cable do you need?

8Enter

Step 2

See Page 10-11

Which temperature trip

level do you need?

1500°F800°C

6

4

3

Enter

Enter

Enter

1100°F600°C

750°F400°C

650°F350°C

9Enter

Enter

Enter

Enter

Enter

Enter

Enter

Enter

7

6

5

4

3

2

1

0.5° x 10°

0.5° x 5°

20°

12°

7°

4°

1°

Step 4

See Page 5

What lens field of view do you

need?

3 T 3 3

SelfContained

Unit

RemoteControlled

Unit 1800°F Amb.1° FOV

150°F Amb.1°, 2°, 4°, 7°, 0.5° x 5°/10°/25° FOV

➥

5Enter950°F500°C

Length – 78" (6'-6")

Length – 118" (9'-10")

Length – 157" (13'-1")

Length – 236" (19'-8")

Length – 315" (26'-3")

0.5° x 25°

➥

8EnterTrip levels are preset off

black oxidized steel plate.

HMDHMD

HotMetal

Detectors

13

HUBBELL

March 1993

With IR self-check? ➥

➥

➥

➥

➥

➥

➥

➥

➥➥

➥

See Electrical Table onPage 14

Step6

What type of electrical ouput?

Enter

1 Yes

X

Enter

No

Step8

Do you need supplementary

analog output for system

monitoring?

See Page 14

Analog output (Step 8) is not available on 1500°F controllers.

Analog output is between 2–4␣ volts and is for local

monitoring only. Analog output will need a signal booster to

pass signal to PLCs.

Step10

Do you need air purge for the

lens?

See Page 9

Enter

Enter

Enter

X

C

A Air Purge withAir Cooling

Air Purge withWater Cooling

None

33 1 X X

Step9What type of cooling do you need?

See Page 9

W WaterEnter

Enter

Enter

A

X

Air

None

Step7What type of

electrical output

connector do you require?

See Page 14

Enter1

2

3

4

Enter

Enter

Enter

No

Yes

With IR self-check?

No

Yes

PottedCable

Cable connection (Step 7) is not available on remote

controlled units. Plug connection (Step 7) is not available on self-contained

water cooled units. Consult factory for other types of plugs and cable connections available.

Step 10 is applicable for self contained or cast rectangular

housings only. See Accessories Section for mounting brackets and cooling options on tubular lenses.

Step 9 is applicable for self contained or cast rectangular

housings only. Water cooling is not available on self contained units

with a plug connection. See Accessories Section for mounting brackets and cooling options on

tubular lenses.

➥

➥

Plug

➥

➥

QuickDisconnect

InstructionsDue to the many combinations available, Hubbell is using a multiple choice deci-sion tree process to select the Hot Metal Detector for your application.

To use this process, simply follow the Steps 1–10. Answer each question in orderand fill in the blank with the appropriate selection. When you have answered all ofthe questions, use the associated price list to determine the price of the unit.

To assist you in your choices, each step references you to a part of this catalogthat offers additional information. For any options not shown consult the factory.

Insert your part number here for future reference.

March 1993

EElectrical OptionsHubbell’s Hot Metal Detectors are of-fered in many electrical configurations,each capable of meeting a wide rangeof applications.

They are available using either electro-mechanical relays and/or solid state cir-cuitry for load switching in both AC and/or DC environments. Electrical packag-es with electro-mechanical relays areable to switch medium to low voltagecontactors. The solid state circuitry isdesigned to handle low voltage applica-tions including programmable control-lers.

Below is a table showing the variousfeatures and specifications of each dif-ferent electrical package that are pres-ently available. For other electrical con-figurations consult the factory.

tion. It does not confirm the field of viewof the lens.

The “Self Check – 1 Wire” circuit is pro-vided through a single wire for connec-tion by the user to the neutral line via acontact closure. The “Self Check – 2Wire” is provided through two wires tobe used as a contact closure. Sourcepower is drawn from the supply power.Electrical diagrams of the self check cir-cuits are shown in the bottom right cor-ner of the next page.

Supplementary non-linear analog outputis also available on most models. Ana-log output supplies direct electrical infor-mation from the photoelectric diode onthe amount of infrared radiation beingreceived in comparison to the detectorsset trip level. The analog output is sup-

Electrical package #8 differs from theothers because it uses a separate pow-er pack. This electrical configuration of-fers a dual output of an isolated singlepole reed relay and an isolated DC-NPNtransistor output from an AC source. Forfurther information about this packageconsult the factory.

Each of Hubbell’s HMDs electrical pack-ages can be ordered with optional selfchecking circuitry. The self-checking cir-cuit is comprised of an infrared produc-ing bulb that activates the photoelectricdiode to test the switching circuit. Thisbulb is located in close proximity to thephotoelectric diode. Because of its loca-tion, it can be used to visually check re-mote lens and their connecting fiberoptic cables for breakage or contamina-

Switchin

g

Frequen

cy

Switchin

g

Current

Wiri

ng Diag

ram

Double Pole Reed Relay (50 Ft. Cable Run Maximum)

1

2

3

4

5

6

7

Ele

ctri

cal O

utp

ut

Typ

e

Description

Operati

ng

Voltage/

Load C

urrent

AC Thyristor Switching

NPN – 3 wire DCTransistor Switching

PNP – 3 wire DCTransistor Switching

SPDT Control Relay

NPN Transistor Outputwith Single Pole Reed Relay

PNP Transistor Outputwith Single Pole Reed Relay

24V DC

24V DC

120V AC

120VAC

120VAC

24VDC

24VDC

20 Hz

1000 Hz

1000 Hz

1000 Hz

20 Hz

1000 Hz

1000 Hz

350 mA

450 mA

500 mA

500 mA

500 mA

2 A

250 mA

1

2

3

4

5

6

7500 mA& 2 A

500 mA& 2 A

5 A

—

500 mA

500 mA

350 mAOutp

ut Type

& Function

ACN.O.

ACN.O.

ACN.O.

DC-NPNN.O.

DC-NPNN.O.

DC-PNPN.O.

DC-PNPN.O.

8 NPN Transistor Outputwith Single Pole Reed Relay(DC Detector with AC Power Pack)

120VAC

1000 Hz 500 mA 8500 mA& 2 A

DC-NPNN.O.

Short Circ

uit

Protec

tion

(O

verloa

d)

HMDHMD

HotMetal

Detectors

15

HUBBELL

March 1993

plied through a three wire configuration.From this type of output, the user canobserve the increasing and decreasinginfrared detection levels, changes in theinfrared readings over time vs. setpoints, as well as, align the detectorwithout the need to switch it.

Each Hubbell HMD is supplied with ei-ther an electrical plug or standard wiringharness. Hubbell offers two standardplug arrangements with various pin-outconfigurations. They meet IP65 specifi-cations. Specifications for these plug as-semblies are shown in the accessoriessection of this catalog.

Connection Diag.For further information on connection di-agrams see Hubbell’s Proximity SensorCatalog . Wiring color key is:

or ................. Orangebl ................. Bluebk ................ Blackwh ............... Whiterd ................. Redgr ................. Greenwb ............... White/Black Tracerb ................. Red/Black Tracegb ................ Green/Black Traceob ................ Orange/Black Tracebb ................ Blue/Black Tracebw ............... Black/White Trace

AC Electrical DataThe following electrical data applies toAC – 2 wire configuration (Type 1) only:

Switching Speed .............. 20 msMin. Load ......................... 20 mALeakage Current ............... 5 mAVoltage Drop .................... 12V

Mechanical RelaysThe following information applies to elec-trical packages w/ mechanical relays:

Relay Switching SpeedDouble Pole Reed Relay ... 2 ms (On/Off)SPDT Control Relay .......... 20 ms (On)

10 ms (Off)Single Pole Reed Relay .... 2 ms (On/Off)

ConnectionDiagram #1








NPN

-N.O

.

2

rd

wh

3

Load

+

–

bk 1

AC

-N.O

.

1

wh

bk

2Load

~L1

~L2

PNP-

N.O

.

2

rd

wh

3

Load

+

–

bk 1

DPD

T

1

rd

bk

3

~

or 5

2wh ~L1

L2

~– ~–wb 7bl 6 ~– ~–

SPD

TC

ont

rol R

ela

y1

rd

bk

3

~

or 5

2wh ~L1

L2

bl C6

NC

NO

~– ~–

NPN

-N.O

.w

/ SP

Re

lay

2

rd

wh

3

Load

+

–bk 1

bl 6or 5 ~– ~–

PNP-

N.O

.w

/ SP

Re

lay

2

rd

wh

3

Load

+

–bk 1

bl 6or 5 ~– ~–

Pow

er P

ac

k5

rd

or

3

+–

bl 6

gb 9wb 7 ~– ~–

1whbk

2~ L1

~L2

Self Check – 1 Wire(Electrical Outputs 1, 5-Remote & 8)Outputs 2 & 3 on special request.

Self Check – 2 Wire(Electrical Outputs 2, 3, 4,5-Self Contained, 6 & 7)

9gb

8rb

Analog Output – 3 Wire(All Electrical Outputs)

ob 10bb 11bw 12

An

alo

g

Common

Input

TripLevel

8rb ~L2

Note: When Connection Diagrams 4–8 are supplied with cable, the cable leads arenot color coded but are number coded per the diagrams.

March 1993

GGeneralSpecifications

Tubular Lens Housing - Low TemperatureStep 3 – Option T

Housing .............................. Stainless SteelFittings ................................ Nickel Plated BrassLens ................................... Tempered Crown GlassFiber Optic Glands .............. NeopreneWatertight Rating ............... IP65; NEMA 3, 4, 12Operating Temperature Ranges

Ambient ............................ -5°F (-20°C) to +350°F (+180°C)

Tubular Lens Housing - High TemperatureStep 3 – Option H

Housing .............................. Stainless SteelFittings ................................ BrassLens ................................... Tempered Crown GlassFiber Optic Glands .............. BrassWatertight Rating ............... IP65; NEMA 3, 4, 12Operating Temperature Ranges

Ambient ............................ -5°F (-20°C) to +750°F (+400°C)

High Temperature Quartz Lens HousingStep 3 – Option Q

Housing .............................. Stainless SteelFittings ................................ BrassLens Rod ............................ QuartzWatertight Rating ............... IP65; NEMA 3, 4, 12Operating Temperature Ranges

Ambient ............................ -5°F (-20°C) to +1800°F (+1000°C)Radiant2␣ ...........................≤+2200°F (≤+1200°C) max

Fiber Optic Cables

Housing .............................. Stainless Steel/self-supportinggooseneck construction

End Fittings ........................ Stainless SteelChemical Resistance .......... Unaffected by water, gasoline, oils,

sulfuric acid and other organic acidsWatertight Rating ............... IP66; NEMA 3, 4, 12, 13Vibration Rating .................. Better than DIN 89011, Cat. 2;

IEC 68-2-6, IEC 68-2-27Shock ............................... <30g for <11 ms (all 3 planes)Vibration ........................... <55 Hz – 1 mm amplitude (all 3

planes)Characteristics .................... Resistant to crushing loads and kinks.Operating Temperature Ranges

Ambient ............................ 15°F (-10°C) to +750°F (+400°C)Minimum Bend Radius ....... 2.5 x O.D.Maximum Length ............... 8 meters (26 feet)

Notes

1 Purge Cooled Limits is based on an air purge rate of 1–5 ft3/min.@␣ 15␣ psi. Water Cooled Limits is based on a water source at+72°F␣ (+22°C) at 0.5 gpm @ 10 psi.

2 Radiant temperature is based on an exposure to this maximumtemperature for less than 5 minutes.

Remote Controller

Housing .............................. Aluminium with oven baked black paintWatertight Rating ............... IP65; NEMA 3, 4, 12Vibration Rating .................. Better than DIN 89011, Cat. 2;


planes)Operating Temperature Ranges

650°/750°/950° Controller . -5°F (-20°C) to +150°F (+65°C)1100°/1500° Controller ..... -5°F (-20°C) to +185°F (+85°C)

Short Circuit Protection ....... see page 14Electrical Plug Rating .......... IP66; NEMA 3, 4, 12, 13Repeatability (temp.) ........... ≤1%

Self-Contained Detector/Cast Lens Housing

Housing .............................. Aluminium with oven baked blue paintFittings ................................ BrassLens ................................... Tempered Crown GlassHousing Seals ..................... Neoprene & CorkWatertight Rating ............... IP65; NEMA 3, 4, 12Vibration Rating .................. Better than DIN 89011, Cat. 2;


planes)Operating Temperature Ranges

650°/750°/950° Controller . -5°F (-20°C) to +150°F (+65°C)1100°/1500° Controller ..... -5°F (-20°C) to +185°F (+85°C)Purged Cooled Limits1␣ ..... -5°F (-20°C) to +250°F (+120°C)Water Cooled Limits1␣ ....... +36°F (+2°C) to +350°F (+180°C)

Short Circuit Protection ....... see page 14Connection Cable Rating .... IP65; NEMA 3, 4, 12 – 1.5 meters of

Ölfex® armored cable – 2/4 x 0.7 mm2.Repeatability (temp.) ........... ≤1%

HMDHMD

HotMetal

Detectors

17

HUBBELL

March 1993

AAccessories

Standard “L” Mounting BracketPart No. 59784-000

This “L” Bracket is constructed of steel and is used for mount-ing the cast housings, the tubular lens mounting blocks andpurge nozzles. It allows the housing to be precisely tilted ±45°from horizontal and fits the Universal Swivel Mount. The brack-et includes all mounting hardware.

Standard Tubular Lens Mounting Blockw/o Air Purge/Cooling – Part No. 59785-001w/ Air Purge/Cooling – Part No. 59785-002

The Tubular Mounting Block is constructed of aluminium withoven baked black coating. This type of bracket offers conve-nient and precise mounting of tubular lens. In addition, it givesan extra degree of protection from impact loads to the lenshousing and allows removal of the lens by a simple clamp bolt.

The Air Purged/Cooled Tubular Lens Mounting Block is simi-larly constructed and incorporates an air cooling chamber whichvents as an air purge past the lens case.

Air Purged Tubular Lens Mounting Bracketfor 2°–20° Tubular Lenses – Part No. 59786-000for 1° Tubular Lenses – Part No. 59786-001

This Purged Mounting Bracket is entirely constructed of stain-less steel for long life in harsh environments. This mount of-fers precise alignment of the lens to the target with air purgecapabilities. The air purge inlet is a standard tubing connec-tion. This purged mount is particularly useful in environmentswhere steam and particulates must be cleared from the fieldof view with an air purge.

H U B B E L L

cL

2.09

"(5

3)

1.14"(29)

0.67"(17)

2.50"(63.5)

0.38"(9.5)

0.98"(25)

0.41"ø Holes(2 Typ.)

0.28"ø for looseM7 Hex Hd Bolt

M10 Studwelding in

place

2.13"(54)

cL

.20" (5)

1.30"(33)

2.75

"(7

0)

216/428-1161

hubbell industrial controls, inc.Controller

Type Supply Voltage Max. Load Current

HUBBELL

Tubular Lens(Shown in position)Locking Bolt

0.41"ø Hole

0.75"(19)

1.50" (38)

1.97" (50)

3.23" (82)

2.24

" (57

)

0.87

"(2

2)

4.02

" (10

2)2.28

" (58

)0.91

"(2

3)

0.47" (12)

Air Inlet 5⁄16"ø Tubing Adapteron Part No. 59785-002

Air Purged & Water CooledTubular Lens Mounting Bracketfor 2°–20° Tubular Lenses – Part No. 59787-000for 1° Tubular Lenses – Part No. 59787-001

Constructed as the Purged Lens Mounting Bracket (left) withthe addition of a cooling chamber which may be used with awater supply or an air supply instead of water (i.e. air cooling).This bracket is ideal for harsh installations.

��

Tubular Lens &Optical Lead(Standard)

��

5.91" (150) – Part No. 59786-0008.63" (220) – Part No. 59786-001

3.54"(90)

1.38

"(3

5)

0.41"ø Hole

Locking Bolt

Air Inlet5⁄16"ø Tubing Adapter – Part No. 59786-0003⁄8"ø Tubing Adapter – Part No. 59786-001

Wt. – 1.5#

Wt. – 0.5#

Wt. – 1.5#

Prices for these items are located in the “Accessory Parts” Section of Price List 98/9900

Tubular Lens &Optical Lead

(Standard)

5.91"(150)

3.75"(95)

1.63

"(4

1)

0.38"ø Hole

Locking Bolt

��

Air Inlet1⁄2"ø Tubing

Adapter

��

��

Water Inlet5⁄16"ø TubingAdapter

Water Outlet5⁄16"ø Tubing

Adapter

Wt. – 2.0#

March 1993

AAccessories cont.

Cast Housing Air Purge NozzlePart No. 59788-000

The Purge Nozzle is constructed of steel with zinc cadmiumcoating and oven baked black paint for long life. This air purgenozzle is used to further direct the air purge and increase thepressure to clear steam and particulate from the lens. Its con-struction allows for easy attachment to the cast housing withonly an Allen wrench. It has an extra tubing fitting if additionalair purge is required in severe environments.

Universal Swivel MountPart No. 47925-005

The Universal Swivel Mount is constructed of steel with ahardened brass ball joint for long life. This mount offers pre-cise alignment of the detector to the target with 360° circularrotation and 120° of tilt. To mount the Cast Lens Housing, youwill need its standard “L” mounting bracket. The swivel mountincludes all mounting hardware.

Fiber Optic Mounting Bracket AssemblyPart No. 59790-000

Hubbell’s Fiber Optic Mounting Bracket offers a clean and sim-ply mounting procedure of fiber optic cables that helps pre-vent kinking and damage. They are constructed of aluminumwith a wide variety of mounting possibilities to concrete, struc-tural steel, Tubetrack®, and Unistrut®. This bracket is designedto prevent pinching of the fiber optic cables. The bracket in-cludes all attaching hardware.

Fiber Optic CablesPart No. LG-✽-CB (Fishtail)Part No. LG-✽-AB (Tubular)Part No. LG-15-BB (Calibrator)

Hubbell offers Fiber Optic Cables in various lengths up to8␣ meters to suit each particular application. The fishtail opticcable is used with the cast lens housing, while the tubular opticcable is used with all the tubular and high temperature lenshousing. To specify the length desired, replace the “✽” withyour required length in whole meters. Specifications of thesefiber optic cables are available on page 16 and are original re-placements to fiber optic cables suppled.

H U B B E L L cLOpticals

cLSwivel

cLSwivelcL Optics &

Swivel

cL0.44"ø Hole4 typ.

1.69"(43) typ.

1.69"(43) typ.

5.00" sq.(127) typ.

2.50"(63.5) typ.

2.50

"(6

3.5)

typ

.

6.02

"(1

53)

4.39"(111.50)

5.20

"(1

32)

H U216/428-1161

hubbell ind

Type

HUBBELL

0.79"(20)

1.97" (50)

2.83" (72)

2.44

" (62

)

1.38" (35)

0.16"ø Hole(2 typ - this side,1 typ - far side)

Air Inlet5⁄16"ø Tubing

Adapter

1.77" (45)

Wt. – 0.25#

Wt. – 10.0#

Wt. – 0.25#“Fishtail” Fiber Optic Cable(for use with cast housing lens – 0.5° x 25°)

“Tubular” Fiber Optic Cable(for use with 1°, 2°, 4°, 7°, 12°, 20° lens)

“Calibrator” Fiber Optic Cable(for use with calibrator)

��

��

0.81

9" ø

(21)

typ.

��

0.81

9" ø

(21)

��

0.81

9" ø

(21)

Unistrut Rail(not supplied)

Fiber OpticCable

2.88" (73)

2.17" (55)

1.25" (32)

2.17

" (55

)


HMDHMD

HotMetal

Detectors

19

HUBBELL

March 1993

HMD CalibratorPart No. 59791-000

The HMD Calibrator makes setup, checking and calibration ofHMDs a snap in the field. Constructed of a light durable plas-tic housing weighing less than 2 pounds, this little device canquickly check many of Hubbell’s HMD installation. It includesthe 1.5 meter fiber optic cable (part no. LG-15-BB) for testingremote controllers and operates on two batteries (included).

Electrical Plug Assembly – FemaleThese Plug Assemblies are specifically matched to fit Hubbell’sHMDs. The cable length is available in 6 or 12 feet of neoprenecable with molded plug assembly. Hubbell’s HMD have eithera 6 pin or 12 pin round plug assembly depending on the elec-trical features you ordered.

Application Class:Approvals ......................... UL; CSA; IP65; NEMA 3, 4, 12Ambient Temperature ...... -13°F (-25°C) to 194°F (+90°C)

Materials:Molded Body .................... Neoprene and PolychloropreneLocking Ring ..................... pre-nickeled CuZnLeads ................................ AWG 16Contacts ........................... pre-nickeled CuZnInsulation .......................... glass fiber Based

Electrical Data:Nominal power ................. 7 A max.Nominal voltage ................ 600V AC

��

0.38"(9.5)

1.14

"ø(2

9)

Part Cable Mounting PinNumber Length Style Config.

59780-022 6 ft. Straight 659780-023 12 ft. Straight 659780-025 6 ft. Straight 1259780-026 12 ft. Straight 12

Pin # Wire Color Operation

1 Black ❋2 White ❋3 Red ❋4 Green Ground❋

5 Orange ❋6 Blue ❋7 White/Black Tracer ❋8 Red/Black Tracer Self Check†

9 Green/Black Tracer Self Check†

10 Orange/Black Tracer Analog Common11 Blue/Black Tracer Analog Input12 Black/White Tracer Analog Trip Level

❋ See Connection Diagrams on page 15 for outputs of these leads.

† Self Check on Wiring Diagrams 1, 5-Remote and 8 use only one wireconnected to the neutral or common line via a contact closure. SelfCheck on Wiring Diagrams 2, 3, 4, 5-Self Contained, 6 and 7 use twowires as contact closure point. Power is supplied from the unit.

��

AB

CD

EF G H

IJ

KL

HUBBELL

HMD Calibrator

Instructions1. Establish correct alpha setting for nominal trip point of HMD to be tested according to chart on back of calibrator.

2. Switch on calibrator with 3-way toggle switch to radiate IR energy either to the lens socket or to the calibrator optic lead which connects to the controller.

3. Starting with the multi-stage switch at “A” adjust clockwise until the HMD switches. The effective nominal trip level of the HMD is now established within the stated guidelines.

Hubbell Industrial Controls, Inc.

216/428-1161

3.88" (98)

7.69

" (19

5)

Lens for Calibrating Self-Contained Units

Fiber Optic Leadfor Calibrating

Remote Controllers

Power LEDs

3-Way Power Toggle Switch“Fiber Optic — Off — Lens”

CalibratorLevel Adjustment

Wt. – 2.5#

12 Pin Configuration

6 Pin Configuration

Front View – Female

3

21

6

54

10

9 87

6

5

11

124

13

2


March 1993

DDimensionalIllustrations

Illustration #2Tubular Lens Housing — Low and High TemperatureUsed in Remote Controlled ConfigurationsWeight – 0.4 lbs.

Illustration #3Remote Controller Electronics Package in Mounting CradleUsed in Remote Controlled ConfigurationsWeight – 4.5 lbs.

Lens Size Field of “X” DimensionView

1 1° 7.48" (190)2 4° 4.33" (110)3 7° 3.15" (80)4 12° 4.33" (110)5 20° 3.15" (80)9 2° 5.12" (130)

Illustration #4Quartz Lens HousingUsed in RemoteControlledConfigurationsWeight – 1.2 lbs.

All dimensions are in inches withmillimeters in the parenthesesunless otherwise noted.

Illustration #1Cast HousingUsed in both Self-Containedand RemoteControlledConfigurationsWeight – 3.8 lbs.

��

“X” Dimension

1.00

"ø(2

5.4ø

)

Optical Lead(Standard)

��

6.65"(169)

0.59

"ø(1

5ø)

Optical Lead(Standard)

��

0.42"(10)

0.31"ø(6 typ.)

1.97

"(5

0)

1.97"(50)

2.20"(56)

2.76

"(7

0)

Shielding Tube(unscrews)

Quartz Rod

2.36

"(6

0)

4.02

" (10

2)

5.91" (150)

6.69" (170) 1.97"(50).45"ø Hole

(typ.)

Locking Bolt(fully retracted)

216/

428-

1161

hub

bel

l ind

ustri

al c

ontro

ls, i

nc.

Con

trol

ler

Typ

eS

upp

ly V

olta

ge

Max

. Loa

d C

urre

nt

HU

BB

EL

L

Sensitivity AdjustmentAdjustment Screw LocatedBehind This Cap Screw.Pot turns 25 times with clutches.Clockwise turns lower trip temp.

Power LED (R)

Function LED (R)

Short Circuit LED (A)(on most models)

HUBBELL216/428-1161

hubbell industrial controls, inc. Infrared SensorType Switching Level Viewing Angle

HUBBELL

Supply/Output

cL

cL

Gunsight

Opticals


1.50

"(3

8)2.

52"

(64)

1.54

"(3

9)

1.18"(30)

3.46"(88)

1.14"(29)

45°

7.00"(178)

0.28"ø Slotted Holefor M7 Hex Hd Bolt

0.45"ø forM10 Hex

Hd Bolt

Air/Water Inletfor either 5⁄16"ø ID tubingor 1⁄4"ø PFA pipe

OptionalWater Outlet

0.51"(13)

2.00"(51)

2.99

"(7

6)

Power Cableor Plug

Power LED (R)

Function LED (R)

Short Circuit LED (A)(on most models)

Sensitivity TripLevel Adjustment(is located in one

of these positions)

HMDHMD

HotMetal

Detectors

21

HUBBELL

March 1993

E Material Temp. Range Emissivity°F (°C) ƒir

AluminumHeavily oxidized 200° (93°) – 940° (504°) 0.200 – 0.310Aluminum Oxide 930° (499°) – 1520° (827°) 0.420 – 0.260

Brass – Oxidized 0.610

BrickRed, rough, no gross irregularities 70° (21°) 0.930Grog Brick, glazed 2012° (1100°) 0.750Building 1832° (1000°) 0.450Fireclay 1832° (1000°) 0.750

CarbonT-carbon 260° (127°) – 1160° (627°) 0.810 – 0.790filament 1900° (1038°) – 2560° (1404°) 0.526Rough plate 212° (100°) – 932° (500°) 0.770 – 0.720Graphitized 212° (100°) – 932° (500°) 0.760 – 0.710Candle Soot 206° (97°) – 520° (271°) 0.952Lampblack-waterglass coating 209° (98°) – 440° (227°) 0.960 – 0.950

ChromiumPolished 100° (38°) – 2000° (1093°) 0.080 – 0.360

Concrete Tiles 1832° (1000°) 0.630

CopperPlate Heated at 1110°F 390° (199°) – 1110° (599°) 0.570Molten copper 1970° (1077°) – 2330° (1277°) 0.160 – 0.130

GlassSmooth 72° (22°) 0.940Pyrex, lead and soda 500° (260°) – 1000° (538°) 0.950 – 0.850

InconelType X 450° (232°) – 1620° (882°) 0.555 – 0.780Type B 450° (232°) – 1620° (882°) 0.350 – 0.550

Iron and SteelCast Iron - Polished 392° (200°) 0.210Cast Iron - Turned and Heated 1620° (882°) – 1810° (988°) 0.600 – 0.700Wrought Iron 100° (38°) – 480° (249°) 0.280Polished Steel Casting 1420° (771°) – 1900° (1038°) 0.520 – 0.560Ground Sheet Steel 1720° (938°) – 2010° (1099°) 0.550 – 0.610Oxidized Surfaces Iron Plate, pickled, rusted red 68° (20°) 0.610 Iron Plate, completely rusted 67° (19°) 0.690 Rolled Sheet Steel 70° (21°) 0.660 Oxidized Iron 212° (100°) 0.740 Cast Iron, oxidized at 1100°F 390° (199°) – 1110° (599°) 0.640 – 0.780 Steel, oxidized at 1100°F 390° (199°) – 1110° (599°) 0.790 Smooth oxidized electrolytic iron 260° (127°) – 980° (527°) 0.780 – 0.820 Iron oxide 930° (499°) – 2190° (1199°) 0.850 – 0.890 Iron, Rough-ingot 1700° (927°) – 2040° (1116°) 0.870 – 0.950Sheet Steel Strong, rough oxide layer 75° (24°) 0.800 Dense, shiny oxide layer 75° (24°) 0.820 Cast Plate, smooth 73° (23°) 0.800 Cast Iron, rough, strongly oxidized 100° (38°) – 480° (249°) 0.950 Wrought Iron, dull oxidized 70° (21°) – 680° (360°) 0.940 Steel plate, rough 100° (38°) – 700° (371°) 0.940 – 0.970Molten Surfaces Cast Iron 2370° (1299°) – 2550° (1399°) 0.290 Mild steel 2910° (1599°) – 3270° (1799°) 0.280 Steel 2730° (1499°) – 3000° (1649°) 0.420 – 0.530 Pure Iron 2760° (1516°) – 3220° (1771°) 0.420 – 0.450

LeadHeavy Oxidised @ 300°F 392° (200°) 0.630Liquid 700° (371°) – 900° (482°) 0.500

Stainless SteelType 304, after heating 420° (216°) – 914° (490°) 0.444 – 0.360Type 304, after 42 hrs heating @ 980°F 420° (216°) – 980° (527°) 0.620 – 0.730Type 310, from furnace 420° (216°) – 980° (527°) 0.900 – 0.970Type 316, from furnace 450° (232°) – 1920° (1049°) 0.520 – 0.500Type 347, from furnace 450° (232°) – 1650° (899°) 0.520 – 0.650

The table at the right shows emissivityfactors for various materials under differ-ent stages of manufacturing. If your par-ticular material is not shown, consult thefactory for the appropriate emissivity fac-tor. The table below shows how oxidationcan greatly effect the emissivity factor fora material. In general, as the oxidationincreases — the emissivity factor increas-es.

Emissivity for Steel Based on theLevel of Oxidation

Clean unoxidized ............... 0.25

Slight oxidation ................. 0.50

Heavy oxidation ................ 0.95

Emissivity Factors

March 1993

SSpecification Formfor HMDs

Instructions: Please fill out this form completely prior to placing your order. Attach a sketch of your installation to help clarify your answers. To help keep items clear use only one form per single application.

Date Salesman/Company

Contact PersonCompany Telephone

Street Address Project NameCity/State/Zip

ProductDescription: Type: Liquid Slab Plate

Beam Angle Other

Bloom Billet Strip

Bar Rod

Temperature: °F or °C (max)

°F or °C (min)

Speed:Max & Min

Constant Variable

Gap BetweenTargets: Distance Time

Location onConveyor:

Center Drifting

BouncingMax & Min

Water on Target: Yes No

Black Spots Yes No

EnvironmentDescription: Steam in

Field of View:Never Intermittent Always Reflective

Surfaces:Side Rails Enclosures

DetectorRequirements: Mounting

Position:Above Below To Side Distance

to Target:<3 feet 3–9 feet >9 feet

30° 45° 60°Specific Distance/Restrictions

Function: Tracking Action Initiation

Speed Control Cobble AlarmSpecify Function in Detail

DetectorFeatures: Housing Style: Self Contained Remote Lens Housing: Cast Tubular

Air Purge for Lens: Cooling: Water AirNo Yes

Bkgd. Lines Floorpans

Field of ViewRequirements:

SpottingTarget

Viewing EntireTarget Width Specify FOV Requirements

Quartz

HMDHMD

HotMetal

Detectors

23

HUBBELL

March 1993

ElectricFeatures: Supply Voltage: AC DC

Analog Output: No Yes

ElectricalConnection:

WiringHarness

ElectricalPlug

OutputRequired:

AC

DC-NPN DC-PNP

Double Pole Reed RelaySelf-Check: No Yes

SPDT Control Relay

NPN w/ Single Pole Reed Relay

PNP w/ Single Pole Reed Relay

Other

InstallationSketch:

includeapproximatedimensions

Hubbell Industrial Controls, Inc.a subsidiary of Hubbell Incorporated

50 Edwards Street, Madison, Ohio 44057Telephone (216) 428-1161 • FAX (216) 428-7635

JPS-1091-2M © 1991Printed in U.S.A.

HUBBELL

hubbell hot metal detectors - jps design grouphubbell’s hot metal detectors (hmd) sense the...

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