Category Archives: Temperature Transmitters

SI-DTM Digital Thermometer/Transmitter

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SI-DTM Digital Thermometer/Transmitter is a high accuracy thermometer with digital display.

It features an IP67/NEMA 4X enclosure and a 1-year battery life.

The Digital Thermometer is perfect for a variety of markets and applications,

where a high accuracy digital readout is required.

Features of SI-DTM Digital Thermometer/Transmitter

SI-DTM Digital Thermometer
SI-DTM Digital Thermometer
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High Accuracy 1,000Ω RTD (Class A)

Water Resistant IP67/NEMA 4X

5 Year Battery Life

4-20 mA Output Available

Low or High Temperature Range Models

Specifications of SI-DTM Digital Thermometer/Transmitter

  • Accuracy: ± ( 0.72 + 0.002 x | t-32 | ) °F,± ( 0.42 + 0.002 x | t | ) °C, where t = temperature. Example: At 32°F accuracy is ± 0.72 °F.
  • Sensing Element: RTD, Type Pt1000Ω, Class A
  • Temperature Ranges:
    -58°F to 392°F (-50°C to 200°C) or -328°F to 1112°F (-200°C to 600°C)
  • Output (Optional) :
    4-20 mA, M12 Connector
  • Refresh Rate : 3 Seconds
  • Display : 4-digit LCD, 1/2” Height
  • Display Resolution: See Table 1
  • RFI Effect :1% or Less Typical
  • Ambient Temperature Range : 32°F to 122°F (0°C to 50°C)
  • Housing Material : Stainless Steel 316
  • Lens : Plastic Polycarbonate (Standard) or Glass
  • Probe Material :304 Stainless Steel
  • Weight : 12 oz., Varies by Configuration
  • Environmental Protection: NEMA 4X/IP67
  • Power : 1 x 3.6V AA Battery (M12 is loop powered 9-36 VDC.)
  • Battery Life: 5 Years Minimum in Continuous Mode
  • Electronic Display Temperature Limit :
    If the temperature of the electronics in the display housing exceeds 122°F (50°C), permanent damage to the display will occur. A remote mount is recommended for high or low temperature applications.

Table 1: Display Resolution

ModelRangeDecimal Point
Low Temp,
Displays Decimal		-58°F to 392°F
(-50C to 200C )		Yes
High Temp,
No Decimal		-328°F to 1112°F
(-200°C to 600°C)		No

Extended reading:  Tri Clamp Sanitary Thermometers

Applications of Digital Thermometer/Transmitter

DTM radial digital thermometers can be hung or mounted on the outer walls of a variety of equipment.

It is recommended to use a high-capacity alkaline battery,

as the working power source for the thermometer.

The effective working hours of the thermometer vary with different batteries.

When the temperature is out of range,

the temperature probe should be immediately removed from the measured medium,

or the temperature of the measured medium should be restored to the measurement range in time,

and the temperature probe cannot have a wide range of temperature drastic changes.

All operations that violate the specified method of use,

will affect the measurement accuracy and service life of the thermometer.

Process Market:
Industrial Market:
  • General Industrial
  • HVAC
  • Equipment Skids
Medical and Life Sciences:
  • Pharmaceutical / Biotech
  • Food and Beverage

Drawings of SI-DTM Digital Thermometer/Transmitter

Drawings of SI-DTM Digital Thermometer-Transmitter

Sino-Instrument has always been a famous digital thermometer manufacturer, China

Our main products are:

industrial thermometer, WSS bimetal thermometer,

digital bimetal thermometer, remote bimetal thermometer,

shock pressure gauge, temperature transmitter,

liquid level gauge, differential pressure transmitter, pressure transmitter.

Special specifications can be customized/OEM,

according to the drawings or samples provided by the user.

If you need the datasheet, price, or more information about SI-DTM Digital Thermometer/Transmitter

Just Contact Us.\

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SI-WSS Tri Clamp Sanitary Thermometers

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Sanitary Bimetal Thermometers also called the sanitary thermometer, or tri-clamp thermometer.

Sino-Inst’s Sanitary Bimetal Thermometers are specially designed for direct insertion into sanitary process applications when a standard thermowell is not specified, or the process environment is not exposed to pressure.
Sanitary thermometers are ideal for the food, beverage and pharmaceutical industries.

LEARN MORE

Features of SI-WSS Sanitary Bimetal Thermometers

SANITARY BIMETAL THERMOMETER

3-A Conformance Certificate Included

Made to ASME B40.3 Specifications

Accuracy ± 1% Full Scale. (ASME B40.3)

All-Stainless Construction

Hermetically Sealed (ASME B40.3)

Silicone Fillable for Vibration

Standard and Custom Stem Lengths

Standard External Reset

Tri-Clamp® Design for Fast Installation and Removal

OEM Logo Dials/Custom Dials

Specifications of SI-WSS Sanitary Bimetal Thermometers

  • Accuracy: ± 1% Full Scale (ASME B40.3 Grade A)
  • Dial Size: ( 3”, 4”, or 5” ) 63 up to 150 mm
  • Dial Material:
    • Anodized aluminum with black marks on satin matte finish background;
    • White or Hi-Vis™ background available.
  • Stem Length:  2.5 – 24″, other lengths available
  • Stem Diameter: 1/4” (std)
  • Head, Bezel, Mounting Bushing, Stems: 300 Series SS, 316SS (optional)
  • Operating Conditions: 
    • The head temperature should not exceed 200°F (150°F if silicone filled).
    • The stem should not be exposed to continuous temperatures exceeding 50% over-range or 800°F(550°F if silicone filled).
  • Temperature Ranges: See inside back cover of temperature catalog for the complete list of ranges.
  • Case Rating: IP67, NEMA 6 Rated (Hermetically sealed per ASME B40.3)
  • Lens: Glass (std), Acrylic, Polycarbonate, Tempered Glass, Laminated Safety Glass
  • Immersion: Minimum 2” in liquid, and 4” in gas for most ranges. Certain ranges require up to 4” in liquids & 5” in gas
  • Mounting Connection: 1/2” NPT (std), 1/4” NPT, 3/4” NPT, Plain Hex Bushing, 1/2” BSPT, 1/2” NPT Union, Sanitary Tri-Clamp®
  • Temperature Sensing Area: Last 2” to 4” of the stem

Note:

Thermowells should be used whenever the stem or bulb would be exposed to pressure, corrosion, velocity, abrasion or shear forces.

Thermowells also make it possible to remove the thermometer, without losing pressure or the contents of the process.

Extended reading: Food grade flow meters for Food & Beverage industry

Care of Sanitary Surfaces

All Sino-Instrument 3-A marked sanitary instruments have carefully prepared Wetted Surfaces.

These surfaces contain no cracks or crevices, where germs could breed, and they are polished to a maximum roughness average (Ra) of 32.

The “wetted surfaces” of an instrument are the surfaces, that will come in contact with your process fluid.

Consult the diagrams below to see the wetted surface, for the instrument you have received.

SANITARY BIMETAL THERMOMETER

All Sino-Instrument sanitary instruments are shipped with packaging that protects the wetted surfaces.

To preserve the sanitary compliance of the instrument, CARE SHOULD BE TAKEN to prevent any scratching, denting, or abrasion of the wetted surfaces prior to or during installation.

Drawings of SI-WSS Sanitary Bimetal Thermometers

SANITARY BIMETAL THERMOMETER
SANITARY BIMETAL THERMOMETER
SANITARY BIMETAL THERMOMETER

The working principle of Tri Clamp Sanitary Thermometers:

Bimetal thermometers measure temperature through the inside of the system. The temperature sensing is realized by the coil spring bimetallic sheet made of bimetallic material.

Its bimetal material is composed of two inseparable metal sheets. Because the thermal expansion coefficients of the two metal sheets are different. Therefore, different degrees of stretching deformation will occur under the condition of temperature change. This stretching deformation is approximately proportional to temperature.

One end of the metal sheet is fixed and the other end is fixed integrally with the indicating shaft. Therefore, when the metal sheet is stretched and deformed, the indicator shaft is driven to rotate and the corresponding temperature value is indicated on the dial.

SI-WSS Serial code

ModelNominal diameter
D (mm)		Scale range
℃		Graduation mark
℃		Insertion length
L (mm)		Protecting pipe length
d (mm)		Installation screw thread
mm
WSS-3600-50
0-100
0-150
0-200
0-300
0-400
0-500		1
2
2
5
5
10
10		75;100;
150;200;
250;300;
400;500		6M16×1.5
WSS-4
WSSX-4		10010M27×2
WSS-515010

SI-WSS Sanitary Bimetal Thermometers Dimension

ModelDimension mm
DHLL1L2L3M
WSS-3060/75;100;
150;200;
250;300;
400;500;		6212 16×1.5
WSS-314660
WSS-324455
WSS-40100/721627×2
WSS-414694
WSS-424482
WSS-485864
WSS-50150/7216
WSS-5146112
WSS-524482
WSS-585864
WSSX-401100/72164227×2
WSSX-4114694
WSSX-4214482
WSSX-481  

If you need the datasheet, price, or more information about SI-WSS Bottom Connect Bimetal Thermometer.

Just Contact Us.

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Sino-Inst, Manufacuturer for Tri Clamp Sanitary Thermometers. Also known as clamp flange bimetal thermometer, chuck thermometer, sanitary chuck thermometer, pipeline thermometer, industrial thermometer. Widely used in pharmaceutical, food machinery industry and other fields.

Sino-Inst’s Tri Clamp Sanitary Thermometers, made in China, Having good Quality, With better price. Our Temperature measurement instruments are widely used in China, India, Pakistan, US, and other countries.

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SI-WSS Back Connect Bimetal Thermometer

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3″, 4″, and 5″ Back Connect Large Industrial Bimetal Thermometers:

A rugged 90° back angle, rear threaded connection design.

Sino-Instrument’s Bimetal Thermometers are reliable and accurate temperature sensors,

requiring no electricity or wiring. 

Back Connect Thermometers are ideal for local,

eye-level temperature readings in most process applications.

They can be recalibrated with a turn of the calibration screw on the back of the dial.

A variety of options are available for your specific process needs.

Commonly used in industrial, pulp and paper,

food and beverage processing, HVAC, and OEM applications.

Features of SI-WSS Back Connect Bimetal Thermometer

SI-WSS Back Connect Bimetal Thermometer
SEND RFQ NOW

Back connection with external reset

Made to ASME B40.3 Specifications

Accuracy ± 1% Full Scale (ASME B40.3 Grade A)

All Stainless Steel Construction

Hermetically Sealed (ASME B40.3)

Silicone Fillable for Vibration

Standard and Custom Stem Lengths

Standard External Reset for Calibration

OEM Logo Dials/Custom Dials

Specifications of SI-WSS Back Connect Bimetal Thermometer

  • Accuracy: ± 1.5% Full Scale (ASME B40.3 Grade A)
  • Dial Size:  63 up to 150 mm
  • Dial Material:
    • Anodized aluminum with black marks on satin matte finish background;
    • White or Hi-Vis™ background available.
  • Stem Length:  2.5 – 24″, other lengths available
  • Stem Diameter: 1/4” (std)
  • Head, Bezel, Mounting Bushing, Stems: 300 Series SS, 316SS (optional)
  • Operating Conditions: 
    • The head temperature should not exceed 200°F (150°F if silicone filled).
    • The stem should not be exposed to continuous temperatures exceeding 50% over-range or 800°F(550°F if silicone filled).
  • Temperature Ranges: See inside back cover of temperature catalog for the complete list of ranges.
  • Case Rating: IP67, NEMA 6 Rated (Hermetically sealed per ASME B40.3)
  • Lens: Glass (std), Acrylic, Polycarbonate, Tempered Glass, Laminated Safety Glass
  • Immersion: Minimum 2” in liquid, and 4” in gas for most ranges. Certain ranges require up to 4” in liquids & 5” in gas
  • Mounting Connection: 1/2” NPT (std), 1/4” NPT, 3/4” NPT, Plain Hex Bushing, 1/2” BSPT, 1/2” NPT Union, Sanitary Tri-Clamp®
  • Temperature Sensing Area: Last 2” to 4” of the stem

Note:

Thermowells should be used whenever the stem or bulb would be exposed to pressure,

corrosion, velocity, abrasion or shear forces.

Thermowells also make it possible to remove the thermometer,

without losing pressure or the contents of the process.

SI-WSS Back Connect Bimetal Thermometer Applications

General process instrumentation in the chemical, petrochemical,

oil and gas, energy and water/wastewater industries

Temperature measurement in harsh and aggressive environments

With liquid dampening suitable for applications with high vibrations.

Drawings of SI-WSS Back Connect Bimetal Thermometer

Installation and Use Procedure, All Angle Thermometer

CAUTION:

This thermometer is designed to allow the face to be positioned,

so that it can be easily read.

Sino-Instrument recommends that the thermometer be positioned only one time,

to assure proper performance during its lifetime.

A. Carefully remove the thermometer from the shipping box.

Inspect for any shipping damage. If damaged report it to your freight carrier.

B. Loosen, but do not remove, the bracket set screws (see sketch) so that the bracket can rotate around the stem.

(Do not turn the calibration screw unless calibration is desired).

C. Rotate the bracket by hand so the stem may be flexed in the desired direction. Tighten the “A” bracket set screws.

D. Grasp the head and stem approximately were shown and adjust the head to the desired angle.

E. Tighten the “B” bracket set screws.

F. Install the thermometer into the process fitting or thermowell.

Tighten the hex screw, using an open-end wrench of the appropriate size.

Continue to tighten the hex screw until the head is facing the desired position.

  • SI-WSS Back Connect Bimetal Thermometer
  • SI-WSS Back Connect Bimetal Thermometer
  • SI-WSS Back Connect Bimetal Thermometer

Maintenance of SI-WSS Back Connect Bimetal Thermometer

1) Cleaning:

a) Keep the dial lens clean for proper viewing.

Clean using commercial window cleaner.

b) Periodic cleaning of residue from the stem may be required to ensure thermometer sensitivity if installed without a thermowell. 
2) Calibration:

Periodic calibration should be as determined by the user.

a) Immerse the thermometer stem into a temperature-calibrated medium. Immerse entire stem or 4” (100mm) minimum.

b) Use a small open-end wrench or flat tipped screwdriver to turn the calibration screw.

Turn the calibration screw to adjust the thermometer pointer, to the correct temperature if necessary.

SI-WSS Bimetal Thermometer

If you need the datasheet, price, or more information about SI-WSS Bottom Connect Bimetal Thermometer,

Just Contact Us.

Request a Quote

SI-WSS Bottom Connect Bimetal Thermometer

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Sino-Instrument’s Bottom Connect Bimetal Thermometers,

are reliable and accurate temperature sensors requiring no electricity or wiring.

The Bottom Connect Thermometers are ideal for side and elevated installations,

on tops or sides of tanks or pipes and are ideal for local indication.

They can be recalibrated with a turn of the calibration screw on the back of the dial.

A variety of options are available for your specific process needs.

Features of SI-WSS Bottom Connect Bimetal Thermometer

SEND RFQ NOW

Made to ASME B40.3 Specifications

Accuracy ± 2% Full Scale (ASME B40.3 Grade A)

All Stainless Steel Construction

Hermetically Sealed (ASME B40.3)

Silicone Fillable for Vibration

Standard and Custom Stem Lengths

Standard External Reset for Easy Calibration

OEM Logo Dials/Custom Dials

Applications of SI-WSS Bottom Connect Bimetal Thermometer

SI-WSS series bimetal thermometers are designed for light industry,

HVAC use, especially for refrigeration and hot water.

Specifications of SI-WSS Bottom Connect Bimetal Thermometer

  • Accuracy: ± 1.5% Full Scale (ASME B40.3 Grade A)
  • Dial Size:  63 up to 150 mm
  • Dial Material:
    • Anodized aluminum with black marks on satin matte finish background;
    • White or Hi-Vis™ background available.
  • Stem Length:  2.5 – 24″, other lengths available
  • Stem Diameter: 1/4” (std)
  • Head, Bezel, Mounting Bushing, Stems: 300 Series SS, 316SS (optional)
  • Operating Conditions: 
    • The head temperature should not exceed 200°F (150°F if silicone filled).
    • The stem should not be exposed to continuous temperatures exceeding 50% over-range or 800°F(550°F if silicone filled).
  • Temperature Ranges: See inside back cover of temperature catalog for the complete list of ranges.
  • Case Rating: IP67, NEMA 6 Rated (Hermetically sealed per ASME B40.3)
  • Lens: Glass (std), Acrylic, Polycarbonate, Tempered Glass, Laminated Safety Glass
  • Immersion: Minimum 2” in liquid, and 4” in gas for most ranges. Certain ranges require up to 4” in liquids & 5” in gas
  • Mounting Connection: 1/2” NPT (std), 1/4” NPT, 3/4” NPT, Plain Hex Bushing, 1/2” BSPT, 1/2” NPT Union, Sanitary Tri-Clamp®
  • Temperature Sensing Area: Last 2” to 4” of the stem

Note:

Thermowells should be used whenever the stem or bulb would be exposed to pressure,

corrosion, velocity, abrasion or shear forces.

Thermowells also make it possible to remove the thermometer,

without losing pressure or the contents of the process.

Drawings of SI-WSS Bottom Connect Bimetal Thermometer

BOTTOM CONNECT BIMETAL THERMOMETER DRAWINGS
BOTTOM CONNECT BIMETAL THERMOMETER DRAWINGS
BOTTOM CONNECT BIMETAL THERMOMETER DRAWINGS

Extended reading:  Tri Clamp Sanitary Thermometers

Installation and Use Procedure, All Angle Thermometer

CAUTION:

This thermometer is designed to allow the face to be positioned,

so that it can be easily read.

Sino-Instrument recommends that the thermometer be positioned only one time,

to assure proper performance during its lifetime.

A. Carefully remove the thermometer from the shipping box.

Inspect for any shipping damage. If damaged report it to your freight carrier.

B. Loosen, but do not remove, the bracket set screws (see sketch) so that the bracket can rotate around the stem.

(Do not turn the calibration screw unless calibration is desired).

C. Rotate the bracket by hand so the stem may be flexed in the desired direction. Tighten the “A” bracket set screws.

D. Grasp the head and stem approximately were shown and adjust the head to the desired angle.

E. Tighten the “B” bracket set screws.

F. Install the thermometer into the process fitting or thermowell.

Tighten the hex screw, using an open-end wrench of the appropriate size.

Continue to tighten the hex screw until the head is facing the desired position.

BOTTOM CONNECT BIMETAL THERMOMETER
BOTTOM CONNECT BIMETAL THERMOMETER
BOTTOM CONNECT BIMETAL THERMOMETER
BOTTOM CONNECT BIMETAL THERMOMETER

Maintenance of SI-WSS Bottom Connect Bimetal Thermometer

1) Cleaning:

a) Keep the dial lens clean for proper viewing.

Clean using commercial window cleaner.

b) Periodic cleaning of residue from the stem may be required to ensure thermometer sensitivity if installed without a thermowell. 
2) Calibration:

Periodic calibration should be as determined by the user.

a) Immerse the thermometer stem into a temperature-calibrated medium. Immerse entire stem or 4” (100mm) minimum.

b) Use a small open-end wrench or flat tipped screwdriver to turn the calibration screw.

Turn the calibration screw to adjust the thermometer pointer, to the correct temperature if necessary.

SI-WSS Bimetal Thermometer

If you need the datasheet, price, or more information about SI-WSS Bottom Connect Bimetal Thermometer,

Just Contact Us.

Request a Quote

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SI-WSS Adjustable Angle Bimetal Thermometer
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SI-WSS Adjustable Angle Bi-Metal Thermometer

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What Is a Bi-Metal Thermometer?

The bi-metal thermometer is a simple, durable, and inexpensive temperature measuring device. The bimetal thermometer combines two different metals with linear expansion coefficients. Different metals expand at different rates when heated. The bimetallic strip particles deflect to indicate the temperature. Therefore, bi-metal thermometers are also called dial thermometers.

WSS series bi-metal thermometer is an on-site detection instrument for measuring low and medium temperatures. Directly measure the temperature of fluid, steam, and gas in the range of -80℃～500℃. The structure of the bimetal thermometer is divided into radial, axial and universal.

Technical Support

Features of SI-WSS Adjustable Angle Bi-metal Thermometer

  1. WSS bimetal thermometer is waterproof and dustproof to IP65.
  2. It is anti-corrosion and anti-vibration. The whole instrument is made of stainless steel. It is suitable for corrosive occasions.
  3. The dial of the oil-filled bimetallic thermometer is filled with oil, which increases the damping of the pointer and plays a seismic effect.
  4. When the hot-jacket bimetal thermometer needs to be replaced when the equipment is overhauled or the bimetal thermometer is damaged, there is no need to cool down, reduce pressure, or stop the machine. You only need to remove the watch core. The enterprise can avoid unnecessary economic losses. Continuous production can be achieved.
  5. The electrical contact bimetal thermometer has a mechanical electrical contact device. When the temperature of the measured medium changes. The thin shaft on the free end drives the pointer and the movable contact to rotate. The temperature change value is indicated on the dial. When it is with The instant when the fixed contact is contacted or disconnected. The relay and contactor in the external circuit system are activated to achieve the purpose of automatic control and alarm.
  6. This instrument has reliable structure, novel appearance, light weight and beautiful appearance.

Adjustable Bimetal Thermometer Specifications:

  • Accuracy: ± 1.5% Full Scale (ASME B40.3 Grade A)
  • Dial Size:  63 up to 150 mm
  • Dial Material:
    • Anodized aluminum with black marks on satin matte finish background;
    • White or Hi-Vis™ background available.
  • Stem Length:  2.5 – 24″, other lengths available
  • Stem Diameter: 1/4” (std)
  • Head, Bezel, Mounting Bushing, Stems: 300 Series SS, 316SS (optional)
  • Operating Conditions: 
    • The head temperature should not exceed 200°F (150°F if silicone filled).
    • The stem should not be exposed to continuous temperatures exceeding 50% over-range or 800°F(550°F if silicone filled).
  • Temperature Ranges: See inside back cover of temperature catalog for the complete list of ranges.
  • Case Rating: IP67, NEMA 6 Rated (Hermetically sealed per ASME B40.3)
  • Lens: Glass (std), Acrylic, Polycarbonate, Tempered Glass, Laminated Safety Glass
  • Immersion: Minimum 2” in liquid, and 4” in gas for most ranges. Certain ranges require up to 4” in liquids & 5” in gas
  • Mounting Connection: 1/2” NPT (std), 1/4” NPT, 3/4” NPT, Plain Hex Bushing, 1/2” BSPT, 1/2” NPT Union, Sanitary Tri-Clamp®
  • Temperature Sensing Area: Last 2” to 4” of the stem

Note:

Thermowells should be used whenever the stem or bulb would be exposed to pressure, corrosion, velocity, abrasion or shear forces.

Thermowells also make it possible to remove the thermometer, without losing pressure or the contents of the process.

Measuring range °C Scope of application
Industrial, commercial Laboratory, small
-80～+40 √ √
-40～+80 √ √
0～50 √ √
0～100 √ √
0～150 √ √
0～200 √ √
0～300 √ √
0～400 √ √
0～500 √ √

Drawings of Adjustable Angle Bimetal Thermometer

Form A B C E L d
Axial type 65 23 73 – 75
100
150
200
300
400
500
750
1000 		Φ6
Φ8
Φ10
105 23 73 –
155 23 73 –
Radial type 65 50 110 34
105 50 110 34
105 50 110 34
135°direction 105 23 85 –
155 23 85 –
Universal type 105 23 178 120
155 23 178 120
Drawings of SI-WSS Adjustable Angle Bimetal Thermometer
Drawings of SI-WSS Adjustable Angle Bimetal Thermometer
Drawings of SI-WSS Adjustable Angle Bimetal Thermometer
Drawings of SI-WSS Adjustable Angle Bimetal Thermometer
Drawings of SI-WSS Adjustable Angle Bimetal Thermometer

Adjustable Angle Bi-metal Thermometer Applications

The bimetal thermometer is an on-site detection instrument for measuring low and medium temperatures.

The bimetal thermometer can directly measure the temperature of the liquid, steam, and gaseous media in the range of -80℃～+500℃ in various production processes.

The bimetallic thermometer features an on-site temperature display, which is intuitive and convenient. Safe and reliable. long-lasting. It has a variety of structural forms. Can meet different requirements.

Bimetal thermometers are available in axial type, radial type, universal type, and other meter head models. The length of the bimetal thermometer probe can be customized according to customer needs.

The on-site temperature display is intuitive, convenient, safe, and reliable, and has a long service life. The core-pulling thermometer can maintain or replace the movement in a short time without stopping the machine. Axial type, radial type, 135 type, universal type, and other varieties are complete. Adapt to various on-site installation needs.

Extended reading:  Tri Clamp Sanitary Thermometers

Bi-metal Thermometer Order Guide

Model WSS Bimetallic thermometer
Nominal diameter of dial   3 Φ60
  4 Φ100
  5 Φ150
Dial form 0 Axial (straight)
1 Radial (angle type)
2 135° direction (obtuse angle type)
8 Universal (adjustable angle type)
Installation fixed form 0 No fixtures
1 Movable external thread
2 Movable internal thread
3 Fixed thread
4 Fixed flange
5 Ferrule thread
6 Ferrule flange
Form of protection – normal type
W Protection type
F Anticorrosive
Model Temperature range Accuracy class Protection tube material Standard Installation fixed form
D L
WSS-480 -80～+40
-40～+80
0～50
0～100
0～150
0～200
0～300
0～400
0～500 		1.5 1Cr18Ni9Ti
304
316
316L
Hastelloy C-276
PTFE anti-corrosion 		Φ100 75
100
150
200
300
400
500
750
1000
1500
2000 		No fixtures
WSS-580 Φ150
WSS-481 Φ100 Movable external thread
WSS-581 Φ150
WSS-482 Φ100 Movable internal thread
WSS-582 Φ150
WSS-483 Φ100 Fixed thread
WSS-583 Φ150
WSS-484 Φ100 Fixed flange
WSS-584 Φ150
WSS-485 Φ100 Ferrule thread
WSS-585 Φ150
WSS-486 Φ100 Ferrule flange
WSS-586 Φ150

Selection instructions:

Please provide the model, dial diameter, accuracy grade, installation and fixing form, temperature measurement range, protective tube material, protective tube diameter, length, or insertion depth.

Selection examples:

Universal bimetal thermometer, dial diameter Φ100, temperature measurement range 0～400℃, level 1.5, movable external thread M27×2, length 450mm WSS-481, 0～400℃, L=450, M27×2, level 1.5

Installation and Use Procedure, All Angle Thermometer

CAUTION:

This thermometer is designed to allow the face to be positioned, so that it can be easily read.

Sino-Instrument recommends that the thermometer be positioned only one time, to assure proper performance during its lifetime.

A. Carefully remove the thermometer from the shipping box.

Inspect for any shipping damage. If damaged report it to your freight carrier.

B. Loosen, but do not remove, the bracket set screws (see sketch) so that the bracket can rotate around the stem.

(Do not turn the calibration screw unless calibration is desired).

C. Rotate the bracket by hand so the stem may be flexed in the desired direction. Tighten the “A” bracket set screws.

D. Grasp the head and stem approximately were shown and adjust the head to the desired angle.

E. Tighten the “B” bracket set screws.

F. Install the thermometer into the process fitting or thermowell.

Tighten the hex screw, using an open-end wrench of the appropriate size.

Continue to tighten the hex screw until the head is facing the desired position.

SI-WSS Adjustable Angle Bimetal Thermometer
SI-WSS Adjustable Angle Bimetal Thermometer
SI-WSS Adjustable Angle Bimetal Thermometer
SI-WSS Adjustable Angle Bimetal Thermometer

Maintenance of SI-WSS Adjustable Angle Bimetal Thermometer

1) Cleaning:

a) Keep the dial lens clean for proper viewing.

Clean using commercial window cleaner.

b) Periodic cleaning of residue from the stem may be required to ensure thermometer sensitivity if installed without a thermowell.

2) Calibration:

Periodic calibration should be as determined by the user.

a) Immerse the thermometer stem into a temperature-calibrated medium. Immerse entire stem or 4” (100mm) minimum.

b) Use a small open-end wrench or flat tipped screwdriver to turn the calibration screw.

Turn the calibration screw to adjust the thermometer pointer, to the correct temperature if necessary.

SI-WSS Adjustable Angle Bimetal Thermometer

Frequently
Asked
Questions

Help Center

The accuracy grade of the bimetal thermometer is divided by its allowable error as a percentage of the dial scale value.

The greater the number of accuracy levels, the greater the allowable error to account for the limit value of the dial scale. The larger the range, the greater the allowable error of the absolute value of the measured temperature value for the same accuracy level.

Class 1.5 and Class 1.0 respectively indicate that the allowable error of the thermometer is ±1.5 and ±1.0% of the range under normal use.

The current 1.5-level accuracy has been able to meet the measurement needs of most customers.

The bimetallic thermometer uses a hot bimetallic piece wound into a threaded shape as a temperature-sensing device. And install it in the protective sleeve. One end is fixed, called the fixed end. The other end is connected to a thin shaft, called the free end.

A pointer is provided on the free end spool.

When the temperature changes, the free end of the temperature sensing device rotates accordingly. Drive the pointer on the thin shaft to produce angle changes. Indicate the corresponding temperature on the dial.

The temperature measurement range is -80~600C, which is suitable for temperature measurement when the precision is not high in the industry. As a kind of temperature sensing element, the bimetal can also be used for automatic temperature control.

The bimetal thermometer reads quickly. Real-time measurement is achieved. Therefore, bimetal thermometers have been widely used in industrial production and manufacturing.

At the same time, because it uses metal materials to measure temperature, because of the high melting point performance of the metal itself. Can withstand very high temperatures. Therefore, the measurement effect of this temperature under high-temperature conditions is particularly excellent.

Much high-temperature liquid, gas, and other medium temperature tests. Will use this WSS series bimetal thermometer to measure temperature.

Most bimetal thermometers are pointer type. The temperature is displayed in time.
Of course, with the development of products, bimetal thermometers with digital display have appeared. It is more convenient for users to read.

If you need the datasheet, price, or more information about SI-WSS Adjustable Angle Bimetal Thermometer,

Just Contact Us.

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SI-SBW Temperature Transmitter 4-20mA
RTD Temperature Transmitter 4-20 mA

SI-SBW Temperature Transmitter 4-20mA

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Temperature Transmitters (4-20mA), also known as thermocouple temperature transmitter, or thermal resistance temperature transmitter, are sensors with an electrical transmission output.

From wall mounted to PC programmable, to LCD Display, to intrinsically safe models,

there are a variety of transmitters to choose from.

Sino-Instrument’s economical devices provide accuracy and reliability at the lowest possible cost.

Features of temperature transmitter 4-20mA

  1. Ultra-small (module φ44×18) integration, strong versatility
  2. Two-wire system 4~20mA DC output. The transmission distance is long and the anti-interference ability is strong.
  3. Cold end, temperature drift, non-linear automatic compensation.
  4. High measurement accuracy and good long-term stability.
  5. The temperature module is internally filled with epoxy resin casting technology,
    • which is suitable for use in various harsh and dangerous places.
  6. Integrated design, simple and reasonable structure, can directly replace the ordinary assembled thermocouple, thermal resistance.
  7. Mechanical protection IP65
  8. Using thermocouple temperature change, can eliminate the use of compensation wires, reduce costs
  9. LCD, digital tube, pointer and other indication functions are convenient for on-site monitoring.
  10. When the ambient temperature is >70 °C,
    • the transmitter and field display instrument can be installed in separate (isolated) mode.
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SI-SBW integrated temperature transmitter 4-20mA

SBWR thermocouple temperature transmitter,

and SBWZ thermal resistance temperature transmitter,

are field-mounted temperature transmitter units,

in thermocouple and thermal resistance series instruments.

SI-SBW Temperature Transmitter 4-20mA

The SI-SBW series integrated temperature transmitter,

is a perfect combination of temperature sensor and transmitter.

It converts the temperature signal in the range of -200~+1600 °C,

into two-wire 4~20mA DC signal transmission in a very simple way.

Accurate measurement and control of temperature for displays, regulators, recorders, DCS, etc.

Extended reading: How to convert a 4-20mA to 0-10V /1-5V signal?

Technical Parameters of temperature transmitter 4-20mA

  • Input:
    • Thermal resistance Pt100, Cu50, Cu100         
    • Thermocouple K, E, S, B, T, J, N2.
  • Output: 2-wire system 4-20mA DC.
    • Output 4~20mA DC signal in the range can be linear with the output resistance signal of the RTD thermometer,
    • Linear with the input temperature signal of the RTD thermometer;
    • Linear with the thermocouple input millivolt signal, or with thermoelectric.
    • The input temperature signal of the oven thermometer is linear.
  • The basic error: 0.1 level, 0.25 level, 0.5 level
  • Transmission method: two-wire system
  • The transmitter working power supply voltage minimum 12V, the highest 35V, rated working voltage 24V.
  • Load: the limit of negative two-load resistance is calculated by the following formula(max)=50×(Vmm-12)
    • That is, the load resistance can be selected from 0 to 600 Ω at 24 V) rated load 250 Ω.
    • Note: The range-adjustable transmitter needs to be repeatedly debugged when changing the range of zero and full scale; t
    • he galvanic transmitter must be warmed up for 30 minutes before commissioning.
  • The ambient temperature impact ≤ 0.05% 1 ° C
  • Normal working environment:
    • a, ambient temperature -25 ° C ~ +80 ° C  
    • b, relative humidity 5% to 95%  
    • c, mechanical vibration f ≤ 55Hz amplitude <0.15mm
  • Explosion-proof grade: EXdIIBT4, EXdIIBT6, EXdIICT6.
  • Protection level: IP54

To select a temperature transmitter you need to know the following parameters:

SI-SBW Temperature Transmitter 4-20mA

1, Temperature range:

2. Sensor index number:

Thermal resistance: PT100 Thermocouple: K S B

3. The accuracy requirements of the temperature transmitter:

A. sensor accuracy:

1) PT100-A grade

2) K S B -I class IIB, transmission accuracy:

0.5 level 0.3 level 0.2 level 0.1 level (thermocouple is 0.5 level)

4, output signal and function:

The output signal is generally 4~20mA output, and the function is with HART protocol RS485 communication.

5, Sensor connection and size: thread, flange, etc.

6, The depth of the sensor insertion depth mm

7, The diameter of the sensor mm:

8. Material requirements for sensors and installation methods

9. Whether the site environment needs explosion-proof

10. Whether there are interferences such as walkie-talkies, inverters, and high-power motors at the use site.

Extended reading: RTD vs. Thermocouple: What’s the Difference, and Which Should You Use?

Sino-Instrument Integrated temperature transmitter series products:

digital integrated temperature transmitter,

integrated temperature transmitter with HART protocol,

thermocouple integrated temperature transmitter,

thermal resistance integrated temperature transmitter,

intelligent temperature change Send the device, etc.

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