Digital Temperature Sensor with transmitter, Pt100, 2 Wire

RTD temperature sensor can directly provide accurate input signal of temperature changes for display instruments, recording instruments, signal conditioners, scanister and computer.

Specification:

1. RTD temperature range and accuracy chart

Note: t is the actual measuring temperature absolute value of the temperature sensing element.
2. Transmitter parameter chart

3. Meter and protection head type

4. Selection chart

Note: The sensing element is sheath RTD sensor, thermowell material is stainless steel, and circuit adopts non-isolated type. When ordering products, write the thermowell insertion depth l and the corresponding temperature range for output 4~20mA signal you need.
Tips: Troubleshooting of Pt100 RTD sensor

1. Fault: Instrument shows negative value.
   Possible cause: Wrong connection between display instrument and Pt100 RTD sensor, or short circuit of Pt100 RTD sensor.
   Processing method: Correct the connection, find out short circuit position and strengthen insulation.
2. Fault: Instrument shows that the indicated value of Pt100 RTD sensor is lower than the actual value or the indicating value is unstable.
   Possible cause: There are metal chips, dust, dirt among wiring terminal and Pt100 RTD sensor short circuit.
   Processing method: Remove metal chips, clean dust and water drops, find out short circuit position and strengthen insulation.
3. Fault: Instrument displays infinity.
   Possible reasons: Pt100 RTD sensor or lead wire short circuit, or connection terminal loosening, etc.
   Processing method: Change the resistance body, or welding and tighten the thread screw.
4. Fault: Relation between Pt100 RTD sensor resistance value and temperature has changed.
   Possible cause: Resistance wire of Pt100 RTD sensor become corrosive and degenerative.
   Processing method: Replace resistance wire of Pt100 RTD sensor.