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ST-TS Thermistor & RTD Sensor
Brand: KeleThe Precon ST-TS Series Tank Thermistor and RTD Sensors provide precision remote temperature sensing for cooling tower tanks for use in building automation systems.
The active sensing element is a highly stable precision thermistor material or platinum RTD.
The sensing element is rugged and sealed in a thermally conductive compound.
The housing is a standard brass immersion well that has the weight to keep the sensor submersed and is compatible for all liquids suitable with brass.
Water resistant cable is used.
Features- Wide selection of thermistor and RTD curves Brass thermowell for quick temperature response Water resistant cable Ultra high accuracy optional One piece design
1 - 12 of 816 Part Numbers
ST-TS21
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Standard
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Without Thermowell
- Cable Length - Standard
ST-TS21-S
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Standard
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Stainless Steel
- Cable Length - Standard
ST-TS21-S-XC25
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Standard
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Stainless Steel
- Cable Length - 25 feet (7.6 meters) Lead Length Cable
ST-TS21-XC25
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Standard
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Without Thermowell
- Cable Length - 25 feet (7.6 meters) Lead Length Cable
ST-TS21-XD
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Without Thermowell
- Cable Length - Standard
ST-TS21-XD-S
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Stainless Steel
- Cable Length - Standard
ST-TS21-XD-S-XC25
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Stainless Steel
- Cable Length - 25 feet (7.6 meters) Lead Length Cable
ST-TS21-XD-XC25
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - Standard Certificates
- Accuracy - Standard
- Thermowell - Without Thermowell
- Cable Length - 25 feet (7.6 meters) Lead Length Cable
ST-TS21-XD-XN1
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Accuracy - Standard
- Thermowell - Without Thermowell
- Cable Length - Standard
ST-TS21-XD-XN1-S
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Accuracy - Standard
- Thermowell - Stainless Steel
- Cable Length - Standard
ST-TS21-XD-XN1-S-XC25
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Accuracy - Standard
- Thermowell - Stainless Steel
- Cable Length - 25 feet (7.6 meters) Lead Length Cable
ST-TS21-XD-XN1-XC25
- Model - 2,252 Ohms Tank Sensor Thermistor at 26° C (77° F), Type II (Green Leads)
- Sensor Configuration - Dual Sensors
- Certificates - NIST Certificate, One Reference Point 0° C (32° F)
- Accuracy - Standard
- Thermowell - Without Thermowell
- Cable Length - 25 feet (7.6 meters) Lead Length Cable
1 - 12 of 816 Part Numbers
Specifications
Brand
Accuracy
- 0.03° C (± 0.054° F) - for RTD Typical 71
- 0.15° C (± 0.27° F) - for RTD Typical 81, 85
- 0.2° C (± 0.36° F) - for Thermistor
- 0.30° C (± 0.54° F) - for RTD Typical 91
- 0.40° C (± 0.72° F) - for RTD Typical 63
Applications
- Building Automation Systems
Approvals & Certifications
- CE
Cable Length
- 25 feet (7.62 metres)
Cable Type
- SJOW
- Water Resistant Cable
Dissipation
- 2.7 mW/°C, Power Needed to Raise the Temperature by 1° C (1.8° F)
Electrical Connectors
- 8 Feer (2.44 metres) 2-Conductor for SJO 18 / 2 Water Resistant Cable
Enclosure, Body Material
- Brass
Materials of Construction
- Well: Stainless Steel
Media
- Liquids
NACE & NIST
- NIST
NPT Connection
- 1/2” NPT Male
Resistance
- 2.252 to 100 kiloohms - Thermistor
RTD Type
- Ni1000 - Typical 63
- Pt375 Curve 1,000 ohms - Typical 91
- Pt385 Curve 100 ohms - Typical 71, 81, 1,000 ohms - Typical 85
Sensor, Probe Type
- RTD
- Thermistor
Stability
- < 0.05° C (< 0.09° F) over 5-Years for RTD
- 0.13° C (0.24° F) over 5-Years - Thermistor
Temperature Coefficient
- RTD: Positive Temperature Coefficient
- Thermistor: Negative Temperature Coefficient
Temperature Range
- -40° to 105° C (-40° to 221° F) - for Thermistor/RTD