Introduction to Sensor
The ST-300-SS Air Temperature Sensor is a high-accuracy Platinum Resistance Thermometer (PRT) engineered for precise ambient temperature measurement. Its low solar loading and low thermal mass design ensure stable, reliable, and accurate performance in environmental monitoring applications.
Specifications
Specifications
| Specification | Value |
|---|---|
| Measurement Range | -40 to 70 C |
| Measurement Uncertainty | 0.1 C (from -40 to 60 C) |
| Measurement Repeatability | Less than 0.01 C |
| Non-stability (Long-term Drift) | Less than 0.05 C per year (when used in non-condensing environments where the annual average temperature is less than 30 C; continuously high temperatures or continuously humid environments increase drift rate) |
| Equilibration TimeTime Constant ( time for detector signal to reach 63 % following a step change) | 32 s |
| Self-Heating | Less than 0.01 C (typical, assuming pulsed excitation of 2.1 V DC), 0.09 C at 5 C (maximum, assuming continuous input excitation of 2.1 V DC) |
| Operating Environment | -40 to 70 C; 0 to 100 % relative humidity |
| Resistance | 100 Ω at 0 C |
| Input Voltage Requirement | 2.1 V DC |
| Output Voltage Range | 16 to 27 mV DC (assuming input excitation of 2.1 V DC) |
| Current Drain | 0.21 mA DC (maximum, assuming continuous input excitation of 2.1 V DC) |
| Dimensions | 57.15 mm length, 3.18 mm diameter |
| Mass | 95 g |
| Cable | 5 m of shielded, twisted-pair wire with santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions) |
| Warranty | 4 years against defects in materials and workmanship |
Features
Applications