The Weiss Series TL Gauges are intended for general service conditions, for pressure or vacuum on air, oil, water, gasor other mediums that do not attack brass.Steam Service Gauges should be protected from excessive temperature by the installation of a coil type syphon.(Cat.No. SY14-S iron or SY14-B brass)

SPECIFICATIONS: TUBE & SOCKET - Bronze, soft soldered to socket and tip. Brass socket.CASE & WINDOW - Drawn steel case, finished in black with push-in polycarbonate window.DIAL - White coated metal lithographed with black and red graduations lines and numerals, dual scale - psi & kPa.MOVEMENT - All brass construction, precision gear and pinion, mounted on socket independent of case.POINTER -Balanced design, aluminum in black finish. ACCURACY 2% of the middle third of the entire range. ANSI-ASME B40.1 Grade B.

UtilityHVACDiaphragm General Service Gauges

TO SPECIFY

CHOOSE CAT. NO. – PLUS RANGE CODE – PLUS CONNECTION

INDICATES RANGE SIZE &DIAL SIZE – CODE RANGE – LOCATION

TL15 11/2" 015 0-15 TL20 2" 030 0-30 TL28 2" 060 0-60 TL25 21/2" 100 0-100

TL35 31/2" 160 0-160

TL45 41/2" 200 0-200300 0-300400 0-400600 0-600

VAC 0-30"HGV30 30-0-30V60 30-0-60V100 30-0-100V150 30-0-150

Ex: TL25 – 100 – 4L

8L = 1/8" Lower

8B = 1/8" Ctr Back

4L = 1/4" Lower

4B = 1/4" Ctr Back

LOWER CONNECTION

DIAL SIZE CAT. NO. NPT CONNECTION

11/2" TL15 1/8"

2" TL20 1/4"

2" TL28 1/8" (Vacuum, 30psi thru 300psi)

21/2" TL25 1/4"

31/2" TL35 1/4"

41/2" TL45 1/4"

CENTER BACK CONNECTION

DIAL SIZE CAT. NO. NPT CONNECTION

11/2" TL15 1/8"

2" TL20 1/8" or 1/4"

21/2" TL25 1/8" or 1/4"

31/2" TL35 1/4"

SPECIFICATIONS: CASE & WINDOW-Drawn stainlesssteel, with push-in Lexan window.TUBE & SOCKET -Phosphor bronze. Brass socket and1/4" male NPT lower connection. Soft soldered connection.DIAL-White coated metal lithographed with black gradua-tions lines and numerals, dual scale - psi & kPa.MOVEMENTAll brass construction,precision gear and pinion.POINTER-Slotted adjustable. ACCURACY-1% ANSI-ASME B40.1 Grade 1A.

The Weiss HVAC Gauges meets the specifications of contractors in heating, plumbing, air conditioning and ventilatingapplications.

This Series of gauges are intended for general service conditions, for pressure or vacuum on air, oil, water, gas or othermediums that do not attack brass.

Steam Service Gauges should be protected from excessive temperature by the installation of a coil type syphon. (Cat.No. SY14-S iron or SY14-B brass)

SPECIFICATIONS: CASE & WINDOW -Stainless Steelback flange with push-in Lexan window. TUBE & SOCKET - Phosphor bronze. Brass socket and1/4" male NPT lower connection. Soft soldered connection.DIAL-White coated metal lithographed with black graduationslines and numerals, dual scale - psi & kPa.MOVEMENT-All brass construction,precision gear and pinion.POINTER-Slotted adjustable. ACCURACY-1% ANSI-ASME B40.1 Grade 1A.

Standard Graduations

HVAC Gauges - Series 4CTA Series 4CTS

1 All dial ranges available in dual scale - psi & kPa, psi & Kg / cm2. Ranges 15psi thru 200psi available dual scale - psi & Ft H2O.

2 Ranges are not offered on 4CTA Gauges.2

PRESSURE (psi) - Series TLRange Figure interval Minor graduation

0-15 1 0.50-30 5 0.50-60 5 1.00-100 10 2.00-160 20 5.00-200 20 5.00-300 30 10.00-400u 50 10.00-600u 50 10.0

COMPOUND Figure interval Minor graduation

Range in Hg psi in Hg psi

30"Hg-15psiu 5 3 1 0.530"Hg-30psiu 10 5 2 130"Hg-60psiu 10 10 2 230"Hg-100psiu 30 20 5 2

VACUUMRange Figure interval Minor graduation

0-30"Hg 5"Hg 0.5"Hgu Ranges not available on Catalog No. TL15.

PRESSURE (psi) - Series 4CTA and 4CTSRange 1 Figure interval Minor graduation

0-15 1 0.20-30 5 0.50-60 5 1.00-100 10 1.00-160 20 2.00-200 20 2.00-300 50 5.00-400 50 5.00-600 50 10.0

COMPOUND Figure interval Minor graduation

Range in Hg psi in Hg psi

30"Hg-15psi2 10 5 1 0.530"Hg-30psi 10 5 1 130"Hg-60psi 10 10 2 230"Hg-100psi 15 10 5 230"Hg-150psi2 30 20 2 2

VACUUMRange Figure interval Minor graduation

0-30"Hg 5"Hg 0.5"Hg

Diaphragm Gauges Series DG25

U-Clamp available for panel mount applications.

PRESSURE RANGE GRADUATIONS FIG. INTERVAL0-3psi* 0.05 0.5 0-5 psi 0.1 1.00-10 psi 0.1 1.0inch/water0-15 0.2 3.00-30 0.5 5.00-60 1.0 10.00-100 1.0 10.0oz.-sq. in.0-10 0.1 1.00-15* 0.2 3.00-30 1.0 5.00-100 1.0 10.0

COMBINATION INNER SCALE OUTER SCALEIN. WATER OZ. WATER GRADS FIGURE GRADS FIGURE

OUTER SCALE INNER SCALE INTERVAL INTERVAL0-35 0-20 0.5 5.0 0.5 5.00-15 0-9 0.2 1.0 0.2 3.00-60 0-35 1.0 5.0 1.0 10.0

VACUUM - in water vac.RANGE GRADUATIONS FIG. INTERVAL

30-0 0.5 5.060-0 1.0 10.0

100-0 1.0 10.0

TO SPECIFYSERIES SIZE RANGE TYPE CASE STYLE NPT MOUNT RANGE

DG 21/2" P3-Pressure U-U Clamp 1/4" LM* ––25 V3-Vacuum CBM** ––

C3-Combination

Ex: DG25P3 1/4" LM 0-10psi *LM - Lower Mount **CBM - Center Back Mount

SERIES A B C D F L NPT

INCH 2.64 1.83 2.62 55.8 .5 .88 DG25 1/4"

MM 67 46.5 66.5 2.2 12.7 22.3

LOWER AND CENTER BACK CONNECTION U CLAMP MOUNT - CENTER BACK CONNECTIONSERIES A B C F Panel Hole NPT

INCH 2.64 1.83 1.00 2.00 2.65 DG25 1/4"

MM 67 46.5 25.4 50.8 67.3 3

*Lower connection only.

The Weiss Series DG Gauges are used where accuracy is required in the measurement of pressures below 10 psi. Thisline of diaphragm gauges offers an instrument highly sensitive yet durably constructed. Utilizing a thin walled copper-alloy, the diaphragm senses slight pressure or vacuum and expands or contracts. The action of the element is quicklyand accurately indicated within 1.5% of full scale range.

The Weiss Diaphragm Gauge is an excellent choice for a wide variety of applications where the standard bourdon tubegauge cannot perform reliably. Some of the uses are filter monitoring, leak testers and LP gas.

SPECIFICATIONS: CASE - Black drawn steel, with twist lock polycarbonate window. DIAPHRAGM - Copper alloy. SOCKET - Brass, 1/4" NPT lower or center back connection. MOVEMENT -Brass. DIAL - White coated metal lithographed with black graduations lines and numerals.POINTER -Balanced design, aluminum in black finish. ACCURACY -1.5% of full scale range.

SERIES A B E L NPT

INCH 4.62 1.12 1.062 .4374CTS 1/4"

MM 117.3 28.4 26.9 11.09

SERIES A B C D E NPT

INCH 5.81 1.37 4.75 3.37 2.37 4CTA 1/4"

MM 147.5 34.9 120.6 85.7 60.3

LOWER AND CENTER BACK CONNECTIONDIAL SIZE A B C D E NPT

11/2" (IN.) 1.65 .91 1.47 .34 .64 1/8"

2" 2.03 1.11 1.80 .39 .80 1/8 or 1/4"

21/2" 2.47 1.19 2.06 .40 .82 1/8 or 1/4"

31/2" 3.69 1.24 2.65 .44 .81 1/8 or 1/4"

41/2" 4.45 1.40 3.30 .50 1.06 1/4"

Series 4CTS Series 4CTA

Series TL

Weiss Instruments, the industry leader in commercial thermometers presents our complete line ofDigital Temperature Indicators. Featured are two exclusive technologies, Light Powered LCD ther-mometers and Direct Powered LED thermometers. Our patented "Solar Only" light powered ther-mometers are the standards in the industry with the lowest light levels and a variety of styles thatcompliment OEM Equipment. Our New Generation LED Thermometers feature a new transformer-lessdesign, which eliminates the outboard transformer allowing 120V direct power while offering fea-tures not found elsewhere.

All Weiss digital thermometers feature our exclusive "sealed sensor" technology. A unique design incor-porates a fully (food grade) potted sensor combined with our press-fit sensor bulb stopper, keeps mois-ture out and the temperature right. With over one million units in the field since 1992, the Weiss sensorsare a proven design.Completely food grade construction, the sensor can be custom designed for vari-ous lengths, bulb materials, sizes and insertion configurations.

Designed for commercial installations, built with NSF accuracy and compliance, Weiss has digital ther-mometers for every application.

This application finder highlights typical Models for these installation:

Display Refrigeration for Supermarkets

NSF Model Model No. Power Size / MountingSD 25SD 30 Lux 1" x 4" / SurfaceSD 20SD 50 Lux 2" Round / VariousSD 56SD 15 Lux 2" Round (56mm sq. front) / Front Flange or U-Clamp

Walk-in CoolersSD 20SD 50 Lux 2" Round / VariousSD 72SD 30 Lux 21/2" Round (72mm sq. front)/Front Flange or U-ClampDT 20DT-F 120 or 12 Vac 2" Round / Front Flange or U-Clamp

Reach-in Refrigeration / FreezersSD 20SD 50 Lux 2" Round / VariousSD 56SD 15 Lux 2" Round (56mm sq. front) / Front Flange or U-ClampDT 20DT-F 120 or 12 Vac 2" Round / Front Flange or U-ClampXT XT11-S 120 or 12 Vac 58mm x 25mm / Snap-inLC LC58 1.5V Battery 58mm x 25mm / Snap-in

Food WarmingSD 56SD 15 Lux 2" Round (56mm sq. front) / Front Flange or U-ClampDT 20DT-F 120 or 12 Vac 2" Round / Front Flange or U-ClampXT XT11-S 120 or 12 Vac 58mm x 25mm / Snap-in

DishwashersDT 20DT-F 120 or 12 Vac 2" Round / Front Flange or U-ClampXT XT11-S 120 or 12 Vac 58mm x 25mm / Snap-in

2

72SD-F

56SD-F

25SD

Light Powered ThermometersWeiss Instruments is the Patent Holder #5196781, which features a no battery design and reliable readingsin very low light applications. The LCD (Liquid Crystal Display) is bold and easy to read. The extra benefitof these units is that being "Self - Powered" they need no power line or batteries to operate and thereforeno need for periodic maintenance. Advantages of Light Powered Only vs Battery Back-up Design :

a. The battery will eventually fail, making the unit unreliable. b. The battery will leak toxic material aftersome time. c. Limited ambient temperature ratings - batteries don’t work well in cold temperaturesd. Service problems in the field.

3

CASE: 21/2" Round (72mm Sq. Front)Front Flange - Black and Silver for LogosRANGE: 40-0-160°F or 40-0-70°CDISPLAY: 1/2" LCD - 1/10° displayLIGHT RATING: 30 Lux to 50,000 LuxSENSOR LENGTH: To 40Ft.ENVIRONMENT: Splash Proof OPTIONS: U-Clamp Case, Model 72SD-U Black Gasket (Food Grade)ACCURACY: NSF Accuracy for food zoneapplications. (±2°F between -20 to +60°F)

(±1°C between -29 to +15°C)

CASE: 2" Round (56mm Sq. Front) Front Flange - Black Mask for LogosRANGE: 40-0-230°F and 40-0-110°C

HT: Switchable40-0-160°F or 40-0-70°C

LT: F/C Switch OptionalDISPLAY: 3/8" LCD (1/10°display up to200°F, HT only)LIGHT RATING: 15 Lux to 50,000 LuxSENSOR LENGTH: To 35Ft.ENVIRONMENT: Waterproof from FrontOPTIONS: U-Clamp Case, Model 56SD-UACCURACY: 1% of reading ± 1 °F or

± .5°C

CASE: 1" x 4" Black Surface MountingBlack or Silver Mask for Logos

RANGE: 40-0-160°F or 40-0-70°CDISPLAY: 3/8" LCDLIGHT RATING: 30 Lux to 50,000 LuxSENSOR LENGTH: To 40Ft.ENVIRONMENT: Splash Proof with GasketOPTIONS: White Case Model 25SD-WBlack or White Gasket (Food Grade)ACCURACY: NSF Accuracy for food zone applications. (±2°F between -20 to +60°F)

(±1°C between -29 to +15°C) NSF Model SD

NSF Model SD

NSF Model SD

CASE: Black ABS rectangular (58mm x25mm) snap-in (Drum type)RANGE: 40-0-190°F or 40-0-109°CCALIBRATION: ± 15°FDISPLAY: 3/8" LCD, Ambient Temp. -35 to 160°FPOWER:1.5V LR44 Watch type battery,replaceable from the front. Battery life 18-24months (under normal conditions)SENSOR LENGTH: To 40Ft.ENVIRONMENT: Wipe Down

CASE: 2" Round (see Selection Table, Pg. 6)Internal White Mask for Logos

RANGE: 40-0-160°F or 40-0-70°CDISPLAY: 3/8" LCDLIGHT RATING: 50 Lux to 50,000 LuxSENSOR LENGTH: To 40Ft.ENVIRONMENT: Waterproof from the Front

20SD-FS

New Super Economy Digital Panel MeterIntroducing the LC58, the lowest cost Digital Thermometer available today. Designed to replacethe old drum type thermometers, the LC58 snaps into a 58mm panel cutout. It’s unique frontloading battery compartment makes battery changing a snap. When low costs are required, theLC58 competes with mechanical instruments anyday.

4

LC58

NSF Model SD

NSF Model LC

CASE: Red Lexan 2" Round Front Flange -Sonic Welded Back PlateRANGE: 40-0-230°F or 40-0-110°C

SwitchableDISPLAY: 1/2" LED POWER: 120Vac or 12Vac (230Vac optional UL Listed, Fast-on connectorsDISPLAY UPDATE: 1 Second, 1 Minute or3 MinutesSENSOR LENGTH: To 99Ft.ENVIRONMENT: Waterproof from the Front OPTIONS: U-Clamp Case, Model 20DT-U

20DT-F

XT11SCASE: Red Lexan Rectangular (58mm x25mm) snap-in (Drum type)RANGE: 3 Digits:40-0-230°F or 40-0-110°C

2 Digits:40-0-99°F or 40-0-99°CDISPLAY: 1/2" LED POWER: 120Vac or 12Vac (230Vacoptional) UL Listed, Fast-on connectorsDISPLAY UPDATE: 1 Second, 1 Minute or3 MinutesSENSOR LENGTH: To 99Ft.ENVIRONMENT: Waterproof from the Front

LED Digital ThermometersThe New Generation LED Thermometers include our exclusive Direct Power feature eliminating theneed for an external transformer. Powered by 120Vac, (230Vac–12Vac, optional) not only makesthe unit easier to install but adds reliability and life to the instrument. With UL and NSF Listing,both designs can be ordered with special display update times to eliminate temperature fluctuationsfrom repeated door openings. Available with 1 second, 1 minute or 3 minute display update times.Each unit now has detachable sensor and power fast-ons to speed up installation. With an extendedrange of –40 to 230°F our LED units are well suited to many applications.

5

NSF Model DT

NSF Model XT

6

LC58

20SD-FS

PANEL OPENING: 2.06 DIA.

PANEL OPENING: 59mm x 26mm

Dimensions

7

72SD

56SD

25SD

PANEL OPENING: 2.609 DIA.MASK

MASKPANEL OPENING: 2.06 DIA.

8

20DT-U

20DT-F

XT11S

PANEL OPENING: 2.06 DIA.

PANEL OPENING: 59mm x 26mm

PANEL GASKET - STANDARD

9

SensorsThe Weiss exclusive "sealed sensor" technology is standard on all Digital Thermometers. A uniquedesign incorporates a fully (food grade) epoxy potted sensor combined with our press-fit sensorbulb stopper. This results in keeping moisture out and the temperature right.With over one million units in the field since 1992, the Weiss sensors are a proven design.Completely food grade construction, the sensor can be custom designed for various lengths, bulbmaterials and sizes.

Cat. No. Description System Wire Rating Std. Lengths Applicable To

18NB 1.8" x 1/4" Nickel Plated Brass LDPE White or Black NSF 300V 105C 03FT, 05FT, 08FT All LCD – 20DT – 12V18SS 1.8" x 1/4" Stainless Steel LDPE White or Black NSF 300V 105C 03FT, 05FT, 08FT All LCD – 20DT – 12V30SS* 3.0" x 1/4" Stainless Steel LDPE White or Black NSF 300V 105C 03FT, 05FT, 08FT All LCD – 20DT – 12V40SS* 4.0" x 1/4" Stainless Steel LDPE White or Black NSF 300V 105C 03FT, 05FT, 08FT All LCD – 20DT – 12VN6U 7mm x 30mm Lexan Black Double Insulated UL /NSF 300V 105C 06FT 20DT (120V) & XT11S

*Required Sensors for adaptive compression fittings and thermowells.

Compression Fittings and ThermowellsCat. No. Description

019-0001 1/4" NPT Compression Fitting019-0002 1/2" NPT Compression FittingB25-75BS 3/4" NPT Brass Thermowell / 1.5" InsertionB25-75SS 3/4" NPT Stn Steel Thermowell / 1.5" Insertion

10

How to Order LED Thermometers

Model No. Mounting Power Display Update Time*20DT -U = U-Clamp 0 =12Vac /DC F =°F 0 = 1 Second

-F = Front Flange 4 =120 Vac C =°C 1 = 1 Minute* 3 = 3 Minute*

XT11S Snap – in 0 =12Vac 0=2 Digit °C 0 = 1 Second4 =110 Vac 1=2 Digit °F 1 = 1 Minute*

2=3 Digit °C 2 = 3 Minute*3=3 Digit °F

Order Entry Example: 20DT - F - 4 F 0

WARRANTY Seller warrants that all goods shall be of good quality and workmanship free from defectsand conforming to all the specifications illustrated in this catalog. These warranties shall run to buyer, itssuccessors, assigns, customers and users of the goods.

Seller agrees, at its own expense and whenever and as often as requested by Buyer, to furnish and deliverto Buyer satisfactory evidence showing that each of said drawings and specifications have been fullyand completely complied with and the goods supplied here under fully and completely conform to suchspecifications. In addition to remedies otherwise available to Buyer, Seller agrees, if requested by Buyer, to replace, repair,or make good, at Seller’s cost, any defective or damaged goods furnished by Seller, for a period of one(1) year after date of acceptance by Buyer.

RETURNED GOODS Before returning goods to Weiss Instruments, a return authorization (RA) numbermust be obtained from the factory. This number must appear on both cartons and accompanying paper-work.

The continuous improvement of Weiss products can cause some variations in the information included in this catalog, even withoutnotice.

Front Flange 120Vac. °F 1 Second Update

* Display changes 1°F e very 1 or 3 minutes on increaseing temperature –on decreasing temperature, the display will change every second, regardless of the update time.

How to Order LCD Light Powered ThermometersModel No's + Ranges + Sensors + System Lengths

25SD 40-0-160F 18NB 03FT20SD 40-0-160F 18SS 05FT56SD-HT 40-0-230F&C1 30SS2 08FT56SD-LT 40-0-160F or C1 30SS2 08FT72SD 40-0-160F&C 40SS2,3 *XXFT

XXFT BAT*** See item for system limits ** Code for Battery Backup XX = Length

1. F/C Switchable 2. Required for Compression Fitting 3. Required for Compression Fitting and Thermowell

Example:Model Range Sensor System Length25SD 40-0-160F or 40-0-70C 18NB 05FT

11

LED Sensors

120 Vac Power 12 Vac /DC PowerN6U - NTC - XXFT 18NB - NTC - XXFT 30SS - NTC - XXFT 40SS - NTC - XXFT

7x30mm Plastic Sensor 1.8" x 1/4" Nickel Plated Brass 3.0" SST x 1/4"

N6U - NTC - XXFT7x30mm Plastic Sensor

Display Refrigeration for Supermarkets

Reach-in Refrigeration / Freezers

INTRODUCING THE 24DT-SP-LT THERMOMETER &LIGHT SWITCH FOR WALK-INS

4 LED Temp Display with °F/°C switch4 1 second,1 minute or 3 minute display update4 Light switch (15A) and SST J-Box Mount Cover4 120V Direct Power4 Optional Battery back-up4 Save on installation costs

Now you can combine your Light Switch and Digital Thermometer in one easy to install package.The waterproof "elbow" engaged illuminated light switch allows operators to turn on the walk-in lighteasily, even when their hands are full. The industrial duty light switch is rated at 15A and includesoptional gasket for outdoor use.

The continuation of the evolution in Digital Thermometry from Weiss Instruments, the leader inTemperature Measurement and Control.

Cat. No. Description Power °F/°C Update

24DT S=Switchplate 0=12Vac./DC F=°F -40/230°F 0=1 sec.4=110Vac. C=°C-40/110°C 1=1 min.5=230Vac. 3=3 min.

Ex: 24DT-S4F1 S 4 F 1S – 110V – °F – 1 min.

Cat. No. Description Power °F/°C Update

24DT 0=Thermometer only 0=12Vac./DC F=°F -40/230°F 0=1 sec.4=110Vac. C=°C-40/110°C 1=1 min.5=230Vac. 3=3 min.

Ex: 24DT-04F1 0 4 F 10 – 110V – °F – 1 min.

Cat. No. Description Power °F/°C Update

24DT L=Switchplate w/ 0=12Vac./DC F=°F -40/230°F 0=1 sec.Lighted Switch 4=110Vac. C=°C-40/110°C 1=1 min.

5=230Vac. 3=3 min.Ex: 24DT-L4F1 L 4 F 1

L – 110V – °F – 1 min.

WEISS INSTRUMENTS INTRODUCES THE24DT THERMOMETER

First there was the Ashcroft 2100E, then came the CPI TI-6000 followedby the Miljoco ED175-2403 "Little Red". Now the ev•o•lu•tion is now completewith the introduction of the Weiss 24DT. The "smart thermometer" featuresleave the competition in the dark ages. Features such as disconnectablesensor power, smart updates, °F/°C switchable and no more transformers,make the 24DT the new choice in LED temperature indicators.

American Heritage Dictionary defines: ev•o•lu•tion - The gradual developement of something into a more complex or better form.

WEISS INSTRUMENTS, INC.905 Waverly Ave., Holtsville, New York 11742

631-207-1200 • Fax 631.207.0900 • www.weissinstruments.com

Part NumbersCat. No. Description Power °F / °C Update24DT 0=Thermometer 0=12Vac./DC F= °F -40/230 °F 0=1 Second

4=120Vac. C=°C -40/110 °C 1=1 Minute5=230Vac. 3=3 Minute

Ex: 24DT-04F1 – 0 4 F 10 – 120V – °F – 1 Min. Complete with 5 Ft. Sensor

4 LED Temp Display with °F/°C switch4 1second, 1minute or 3 minute update4 Optional light switch and SST cover4 120V Direct Power4 Optional battery back-up4 Popular back mounting4 Low Cost

COMPONENTMODEL DT

Old World Craftsmanship . . . New World TechnologyCelebrating 125 Years • 1882 – 2007