phone: 888-584-6165 kele.com e-mail: [email protected] spring ... · warranty coverage. no one offers...

Spring 2014

InsightsPhone: 888-584-6165 Kele.com

E-mail: [email protected] Int'l Phone: 001-901-382-6084

FOREVERY

THERESENSOR

GAS IS A

Which detectors do you need for your job? Find out on page 9

14ISSUE:

Questions From the Field pg. 5

Buy Big, Buy Better with Kele's Project Pricing

pg. 7

For Every Gas, There's a Sensor

pg. 9

Back to Basics: Totalized Values vs. Instantaneous Values

pg. 12

Specmanship pg. 13 Temperature: Boiled Down

pg. 15

Product Profile pg. 17

SPRING

Kele Insights | Spring 2014 | Kele.com | 888.584.6165 2

THE BRAND NEW KELE CATALOG IS NOW AVAILABLE

Call 888.584.6165 or visit Kele.com to request your copy today.

YOU ASKED FOR IT, WE DELIVER!

THE ALL-NEW KELE CATALOG APP• Access every product in our catalog instantly • Easy access installation forms & wiring diagrams • Bookmark any item for repeat orders • Directly connect to kele.com

COMING THIS FALL

* Beta version shown, apperance of app interface may differ.

The ZIP Economizer saves energy in buildings by using cool outside air as a means of cooling the indoor space. This application can drastically reduce HVAC energy costs while also improving air quality. The ZIP has easy plug and play features and by adding the different modules available in the series you can conveniently control many aspects of the space including temperature and humidity as well as remote alarm indication. FULL BELIMO SELECTIONS AVAILABLE AT KELE.

ZIP ECONOMIZER SERIES

The 105 SERIES multi-status indicator is housed in a Divis ion 2 hazardous location and marine rated enclosure. It contains the identical technology and XBR LED circuit as the 125 Class Chameleon. Edwards’ XTRA-SAFE technology employs patented combinations of color AND flash-rate to provide more definite status indication to those who have color vision deficiency (CVD). Applications include:

• They are installed at international ports across the country to tell the crane operator when his hook has securely latched onto the container cover of the ship or barge.

• They are installed in salt water environments because they are marine rated.

• Industrial & Chemical Plants love this product due to its ratings for Division 2 hazardous location environments and its flexible mounting options.

• This product gives your customers a bright visual multi-status indicator with flexible mounting applications

This 105 SERIES product is the “Go to Product” for all of your chemical, caustic, Division 2, and marine applications. Buy now at kele.com.

CUSTOM VALVE ASSEMBLY

Because we have our own production shop Kele can ship you product that is ready to install, saving you time and keeping your projects on track. Our custom valves are assembled and shipped the same day you place your order. A free service to you from the experts at Kele.

3

KELE SAVES YOU TIME AND MONEY — FIND OUT MORE AT KELE.COM

KITTED

SKUs from multiple vendors consolidated...assembled and calibrated as needed.

TAGGED

1 2 3

SKUs grouped by project and labeled per project location (building, AHU, floor).

SHIPPED

Bothimmediatefulfillment and scheduled delivery available. One shipment, one supplier, one freight charge.

KITTING and TAGGING ONLY from KELECUSTOM

CUSTOMIZED CALIBRATION Because we have our own production shop Kele can ship you product that is ready to install, saving you time and keeping your projects on track. We use precision calibration equipment to set your specified signal ranges and engineering units. Our custom calibration is a free service from our technical experts. Most orders are calibrated and shipped to you the same day.


5

A:

Q: Can I get a nitrogen dioxide sensor and carbon monoxide sensor as an “all in one” device?

Q: Does Kele have a BACnet repeater?

A: Yes we do. Check out the ADAM-4510 RS-422/RS-485 repeater.

While there are a few sensors out there that house both sensors in one enclosure we do not recommend

them. The reason we don’t is because the two gasses should be sensed at different heights. Nitrogen

dioxide sensors work best when installed 12" to 18" from the ceiling and carbon monoxide sensors work

best 36" to 60" from the floor.

2- & 3-Way Ball Valves with Stainless Steel or Chrome Trim

Order today! Visit kele.com or call 877-826-9045

Siemens Ball Valves and Actuators are backed with the Siemens Product Guard Plus 3™ warranty, which provides an initial two-year manufacturer warranty, plus three additional years of coverage.

Some limitations may apply to warranty coverage.

No one offers you more! Count on Siemens for a comprehensive selection of Chrome and Stainless Steel Ball Valves. Only Siemens offers a wide Cv range of 0.4 to 160 in ½- to 2-inch sizes, and an industry-leading 200 psi close-off.

Sizing is easy with over 100 valve body choices — both 2-way and 3-way in ½” up to 2” line sizes. This ensures the perfect fit and excellent performance in heating or cooling loop systems and against very high differential pressures.

This full range of options allows you to meet system requirements in the most economical way.

Siemens’ complete portfolio is designed with leading-edge features to meet rigorous demands and optimize system efficiency:

– Low ANSI Class IV leakage (0.01% of Cv) at rated close-off pressure reduces energy consumption

– 600 WOG/ANSI 250 pressure rating meets the specifications of more applications

– Integrated flow characterizer and ball seal provides an equal percentage flow characteristic and enables linear heat transfer

– Spring return and non-spring return OpenAir™ Actuators with 2 position, floating, or proportional signals deliver comprehensive control solutions

More choices. Precise control.Find the perfect fit at a great price with Siemens’ complete portfolio.

Siemens Ball Valves and Actuators

2- & 3-Way Ball Valves with Stainless Steel or Chrome Trim

Order today! Visit kele.com or call 877-826-9045

Siemens Ball Valves and Actuators are backed with the Siemens Product Guard Plus 3™ warranty, which provides an initial two-year manufacturer warranty, plus three additional years of coverage.

Some limitations may apply to warranty coverage.

No one offers you more! Count on Siemens for a comprehensive selection of Chrome and Stainless Steel Ball Valves. Only Siemens offers a wide Cv range of 0.4 to 160 in ½- to 2-inch sizes, and an industry-leading 200 psi close-off.

Sizing is easy with over 100 valve body choices — both 2-way and 3-way in ½” up to 2” line sizes. This ensures the perfect fit and excellent performance in heating or cooling loop systems and against very high differential pressures.

This full range of options allows you to meet system requirements in the most economical way.

Siemens’ complete portfolio is designed with leading-edge features to meet rigorous demands and optimize system efficiency:

– Low ANSI Class IV leakage (0.01% of Cv) at rated close-off pressure reduces energy consumption

– 600 WOG/ANSI 250 pressure rating meets the specifications of more applications

– Integrated flow characterizer and ball seal provides an equal percentage flow characteristic and enables linear heat transfer

– Spring return and non-spring return OpenAir™ Actuators with 2 position, floating, or proportional signals deliver comprehensive control solutions

More choices. Precise control.Find the perfect fit at a great price with Siemens’ complete portfolio.

Siemens Ball Valves and Actuators

QA

FROM THE

FIELDBy David Roames | Kele Sr. Technical Sales Rep

QUESTIONS

888.584.6165

7

Think of Kele first when you have a big job or

quote to tackle. Our procurement, sales and

technical staff are here to make this part of your

job as seamless as possible. As you add items

to your quote, the savings could increase, as

Kele is better able to leverage your needs in our

buying plans and inventory management. Our

relationship with our vendors gives you access

to more brands and solutions than any other

BAS distributor that could offer single source

project assistance. In addition,purchasing a

greater amount of your projectcan qualify you

and your company for lower multiplier

opportunities as you grow your business with

Kele as a partner. And who better to select as

your partner than a company with 30 years of

experience in the business. Our company was

founded on the solutions that weren’t readily

available in the field. We are still providing

solutions that you can’t find any where else,

with our skilled teams and innovative product

solutions and procurement.

Just think of the time savings alone. How much

time do you spend comparing prices? More than

you should be, if you haven’t called Kele. Let

our sales teams do the comparisons for you.

Kele has a 1500 page catalog and extensive

website offering thousands of solutions to meet

your needs. For instance, did you know that

Kele has over 30 different room humidity

sensors, several new options in relays, and

countless temperature sensors?

To save more money and time on your next

project, allow the sales teams at Kele to bid

your job and compare the time and effort savings

you usually expend getting a project quoted

and the actual job put together. Our teams are

able to offer similar – but equal – products with

valuable savings from our in-stock and readily

available solutions to meet your needs. Plus,

Kele can help you locate any part you need to

complete the job, even if you don’t see it online

or in our catalog.*

Finally, the Strategic Project Program will reduce

your overall project costs. Did you realize the

average purchase order costs over $165 to

administer? With Kele’s Project Program you

get all your peripherals from one place and only

have to write one purchase order for your entire

project.—Less to keep up with.

Plus, you can contact Kele for technical support,

receive advance replacements, have multiple

ship dates and custom ship quantities, experience

no-hassle returns, and have the comfort of

knowing you are saving on your project’s overall

costs. Call us with your large orders today, and

save. But you don’t have to wait until after

you’ve engineered the project to get great savings.

Estimators take note – if you call Kele before

submitting your bid, you can quote your project

knowing you have the best partner in your back

pocket to complete the job. Collaborate with our

expert sales team to get you the best project

solutions and products for your next bid. Call us

at 888-584-6165, fax your bill of materials to

901-937-4983, or e-mail your list to your favorite

sales rep. You’ll get the best solutions to complete

your project and the best customer service in

the industry.

WITH KELE’S PROJECT PROGRAM

BUY BIGBUY BETTER


Our customers know that Kele is great for technical support, overnight shipments, and great customer

service. But did you know that in addition, Kele could provide you with the lowest overall expense for

your entire project’s peripherals. How? Try our Strategic Project Program.

The Strategic Project Program is just what the name says – a project solution to solve any sourcing

and logistic issues you may encounter when completing a project, from bid to build.

The Strategic Project Program saves you money with:

Easy product sourcing from our inventory of over 300 manufacturers’ products,

most in-stock, depending on your particular needs

Technical experts to suggest alternative products and solutions to meet your budget

Time and administrative costs savings in reduced material management costs and

logistic and shipping solutions

9

CATALYTIC OXIDATION OR PELLISTORThese sensors are primarily using for sensing

combustibles, and are composed of two matched

sensing beads, one active and one passive.

With the addition of the combustible gas, the active

element catalyzes the oxidation of the gas and heats

up, changing the resistance. The passive element

does not change, so there is a change in the bridge

resistance. That resistance is then measured

and converted into an output proportional to the

concentration of gas detected. These very accurate

and reliable devices are incorporated into the

SPXCD by Honeywell Analytics.

OXYGEN SENSORSOxygen sensors are typically self-powered,

diffusion-limited, and have a metal-air battery.

The sensor consists of cathode, anode and

electrolyte. Oxygen presence within the cells

causes a current to flow between the anode

and cathode, and this can be measured with

a resistor across the circuit. The larger the

concentration of oxygen, the higher the current.

ELECTROCHEMICAL SENSORAn electrochemical sensor has a gaseous diffusion

barrier that limits the amount of gas reaching the

sensing electrode. Typically, there is a sensing

electrode, a reference electrode, a counter electrode

and an electrolyte reservoir. A current is created

between the electrodes when the gas reacts with

the sensing electrode. The current from the sensor

is proportional to the gas concentration. These gas-

specific sensors are found in the higher end toxic gas

sensors such as the 6300 Series and GDC150 from

Bacharach, as well as several other options found on

Kele.com.

NON-DISPERSIVE INFRARED (NDIR)This technology uses the principle that compounds

absorb light in the infrared band at unique

bandwidths. This type of sensor detects fairly inert

substances like refrigerants or CO2. The gas is

allowed to pass through a chamber with an infrared

lamp at the end. And infrared detector is at the other

end with a filter for the bandwidth of the gas being

sensed. As the concentration of the gas increases,

more of the infrared light is absorbed, and the

output is adjusted accordingly. Senseair's 045

eSense and 050 CO2 transmitter both offer this tech-

nology. Kele has a wide variety of CO2

sensors and transmitters.

SOLID-STATE SENSINGThe material in a solid state sensor is metal oxide.

It is heated to a high temperature. Oxygen is

absorbed on the surface, and a resistance is formed

to prevent current flow between the metal oxide

crystals. The resistance changes with the addition

of the target gas, and then, is measured. The

voltage and current that heat the sensor need to

be fairly constant for accurate results. Therefore,

circuitry is installed to monitor them. While these

are subject to react with many different gases,

they offer a low-cost, reliable solution for many

applications.

For assistance with any gas sensing product,

call Kele or go to www.kele.com. We have a

vast selection of products, and our technical

support staff is unmatched in the industry.

Gas sensing is an everyday part of

building control. For example, demand

controlled ventilation (DCV) requires

sensing carbon dioxide to approximate

building occupancy. Chillers require

refrigerant leak detectors, and a natural

gas-fired boiler should have a nearby

methane gas detector. Hydrogen sensors

are found above battery stations, and

ventilation in parking garages is controlled

by sensing carbon monoxide and

sometimes nitrogen dioxide. To control

outside air intake, try installing a volatile

organic compound (VOC) sensor. Use gas

sensors to detect oxygen depletion in

hospital MRI rooms, ammonia in food

processing areas, and a variety of toxic

gases found in industrial environments.

Not only are there many uses for gas

sensors, there are often choices for which

type of sensor to use. For example, in

refrigeration monitoring, solid-state and

non-dispersive infrared (NDIR) sensors are

available. These types differ in degree and

accuracy, price, and variety of enclosure.

The type, quality, and price range of a sensor

vary from application to application.

The following is a brief description of the

types of sensors used for gas sensing:

FOREVERY

THERE'S ASENSOR

GAS


BACK to BASICS2TOTALIZED VALUES INSTANTANEOUS VALUESVS

Much of what is done by the system in Building Automation and Energy Management is simply measuring things.

The most common variables that are measured are instantaneous values. Temperature, relative humidity, pressure,

and toxic gas levels are typically monitored for their instantaneous value. Gallons of water and kilowatt hours are

common totalized values that are monitored.

One of the best, most common examples of this is in an automotive gauge cluster. Cars have a speedometer

and odometer. The speedometer indicates how fast the car is currently traveling. Displayed in miles per hour

(mph) or kilometers per hour (kph), the speedometer shows the instantaneous speed of the car. The odometer,

displayed in miles or kilometers, shows the totalized value representing how far the car has traveled.

Water flow applications are where these are often confused. When instantaneous flow, usually in gallons per

minute (gpm), is needed an analog signal (4-20 mA) is used. The flow transmitter outputs a signal that represents

how fast the water is moving at that exact moment in time. When totalized flow is needed, usually in gallons,

a digital signal is used. Each contact closure, or pulse, represents a number of gallons that have passed the flow meter.

55

120

MPH GPM

1 2 1 2 7 4 0 0 1 7 2 0

RATE

MILES GALLONS

TOTAL

PROTECTING

THE WAY THE WORLD WORKS

THE LARGEST STANDARD OFFERING OF ENCLOSURE SOLUTIONS

CALL YOUR KELE REP FOR MORE INFORMATION ON HOFFMAN®!

Take Control of Your NetworkBACnet® Routers Multi-Network routers provide stand-alone routing between BACnet networks such as BACnet/IP, BACnet Ethernet, BACnet MS/TP — allowing the system integrator to mix BACnet network technologies within a single BACnet internetwork. MS/TP

Cost-effective automation solutions

Plug-and-Play Ethernet Switches Plug-and-Play (PnP) EIBA Switches provide the functionality, mounting convenience, and ruggedness to fit most building automation systems. As with all our switches the popular EIBA5-100T Ethernet switch, is designed for panel mounting.

Wired and Wireless IP RoutersThe EIPR-E’s resident USB port allows expansion to wireless networks implementing a Wi-Fi access point — increasing the number of LAN-side clients. The EIPR-E has many of the same features found in high-end routers but is simpler to install and commission. EIPR-E IP Router

EIBA5-100T/REIBA5-100T

Portable BASrouter

BASrouterLXBASrouter

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13

A single phrase inserted into the body of the

specification may secure the project for one

bidder or eliminate another. Of course, in these

situations the chosen bidder probably helped

write the specifications, securing the job from

the get-go. "Specmanship" is an acquired

talent for many successful contractors, and

understanding the project applications is crucial

for job success and bid selection. There are

certain applications where having a clear bid

specification can make an enormous difference

in the outcome of the bid process, and the

following examples are just a few instances

where understanding the application can make

a big difference in bid choice!

Bid specifications are often critical in determining

the chosen contractor for many building automation

projects. In the past we’ve discussed the problems

encountered when differential pressure type flow

measurement devices are specified for use in

outside air ducts, and the bidder plans to use

a pitot tube, airflow station or velocity probe

device that is designed for supply or return duct

air flows. Its impossible for these products to

accurately measure air flow in what is typically

a low-velocity application; they are not designed

for it.

Short cuts, like tubing together multiple differential

pressure sensors simply will not work in a low-

velocity outside air intake application, even if

an industrial grade, high accuracy, expensive

differential pressure transmitter is used.

A "system" specifically designed for outside air

intake must be specified, bid, purchased, and

installed correctly to assure a successful outdoor

air flow control system. A signal processor

designed to measure air flow is required, and

other factors such as temperature compensa-

tion become important in accurately measuring

low velocity flow.

Proper "specmanship" is key in this application;

an outdoor airflow measurement system such

as the Kele KOAMS is the right solution from

start to finish. Check out the KOAMS Guide

Spec at www.kele.com.

Another misinterpreted specification that comes

to mind is one that requires RTDs, but excludes

thermistors. This specification typically states

a very high accuracy for the RTD; however, the

accuracy is stated as a percentage of resistance

(in ohms), not in degrees. When the accuracy

is converted to degrees, the temperature accuracy

becomes worse than the thermistor. For example,

a 1000ΩPlatinum RTD with an accuracy of 0.2%

is actually only ± 0.95°F.

The guaranteed accuracy of a Precon thermistor

is ± 0.36°F. While we are equally happy to

provide RTDs or thermistors, if a BAS system

is designed to operate with thermistors, why

force the contractor to use RTDs?

Although Kele can help you with writing detailed

specifications to make your jobs easier, "CYA"

notes are another story. This blanket statement

that makes the contractor liable for any design

mistakes or hidden problems has undoubtedly

caused lost sleep for many contractors. While

we cannot help with that, we can help with the

specifications you can control! We wish you good

luck as you work through the specifications for

your projects, and remember that Kele’s engineers

are always available to help you wrestle with

your jobs!

Kele makes it easy! Visit www.kele.com or call

or call 888.584.6165 for more information.

SPECMANSHIP


15

There are a number of different methods for

measuring a temperature change. Since we all

are in the temperature control business, let’s go

over some of the more common techniques and

explain a few pros and cons to each technology.

A resistance temperature sensor is the most

common in our industry. Specific names for these

types of sensors are Thermistors, and RTD’s. As

the temperature changes, the resistance of the

sensor changes.

THERMISTORS, like those from PreCon, are

made of high quality metal oxide ceramics in a

specific mixture to produce a specific resistance

response to temperature. They usually have a

negative temperature coefficient (temperature up...

resistance down) and are very repeatable, very

sensitive and accurate to ±0.36°F. The resistance

response is non-linear, so it can only be interpreted

by a computer. However, they are inexpensive

and lend themselves to a wide variety of HVAC

mounting applications.

These features make them ideal for building

automation applications. They typically measure

ranges from -30°F to 230°F.

RTDs are made of metal wire or thin metal film.

The amount and the type of metal give each

sensor a different response to temperature.

The most common RTD uses the precious metal

platinum. However, other less expensive metals

in use today are Nickel, and Nickel-iron. Twenty

years ago platinum RTD’s were manufactured

with platinum wire wound on a bobbin to the

desired resistance. The cost of platinum was

an issue, so platinum RTD’s were generally

limited to 100Ω for economic reasons. Today,

with thin film platinum, 1000Ω RTD’s are much

more desirable due to their higher sensitivity.

The cost of thin film is less than wire wound

because the metal is kept to a thin sliver of

platinum on a substrate to achieve the desired

resistance. All RTD’s have a positive temperature

coefficient (temperature up…resistance up) and

are very stable and accurate. They are more

expensive than thermistors but are ideal for

very low (-320°F) and intermediate temperature

(1000°F) measurement. Most applications will

require a transmitter to convert the resistance

to a 4-20 mA signal, but more and more BAS

manufacturers can take an RTD directly into

the field processor thus eliminating part of the

expense.

SOLID STATE or SILICON sensors are

basically temperature sensitive transistors or

diodes. When an excitation voltage is applied,

the solid state device regulates the microamp

current or sometimes a millivoltage through the

device according to the surrounding temperature.

Solid state devices are inexpensive and are used

by some automation companies. Solid state

sensors are very linear, but depending on the

model, have a fairly narrow operating range.

The general accuracy is a bit less than thermistors

or RTD’s, but is well within acceptable comfort

control limits for HVAC.

THERMOCOUPLES take advantage of a voltage

effect when dissimilar metals are connected

together. A thermally induced millivoltage is

generated at the junction of the dissimilar metals

and changes as the surrounding temperature

fluctuates. A transmitter measures the voltage

and generates a signal (4-20 mA or 0-5 V) for

a controller or meter. Thermocouples come in

many types of metal junctions to produce

different temperature responses. Thermocouples

are especially good at very high temperatures

(>1000°F) and are well suited for industrial

furnaces and process control. They are not very

linear or very accurate at room temperatures

so are not used in HVAC temperature control.

The comfort control of any building starts with

temperature. So regardless of which HVAC

temperature sensor you need, KELE has the

temperature sensor that will interface with your

system and application!

BOILED DOWN


TEMPERATURE:

17

FOR MORE INFORMATION – CHECK OUT KELE.COM


© 2014 Kele, Inc. All rights reserved.

The Kele name and logo are registered trademarks of Kele, Inc.

For information or pricing on any of the products showcased in this issue, or to download product data sheets, contact: [email protected] Do you have questions or submissions for Kele Insights? Send an e-mail to [email protected]

3300 Brother Blvd.Memphis, TN 38133

KELE.COM Phone: 888-584-6165

E-mail: [email protected] Int'l Phone: 001-901-382-6084

LET KELE BE THE ONE SOURCE SOLUTION FOR ALL OF YOUR SENSING NEEDS

phone: 888-584-6165 kele.com e-mail: [email protected] spring ... · warranty coverage. no one offers...

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