Instrument Expert
Original factory packaging
Service Hotline：
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Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2023-06-05
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user's manual
The ST-100 is a high accuracy thermistor (± 0.1 C from 0 to 70 C), mounted in a waterproof housing, designed for continuous measurement of air, soil, or water.
| Measurement Range | -50 to 70 C |
| Measurement Uncertainty | 0.1 C (from 0 to 70 C), 0.2 C (from -25 to 0 C), 0.4 C (from -50 to -25 C) |
| Measurement Repeatability | Less than 0.05 C |
| Non-stability (Long-term Drift) | Less than 0.02 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) |
| Time 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 2.5 V DC),; 0.08 C at 5 C (maximum, assuming continuous input excitation of 2.5 V DC) |
| Operating Environment | -50 to 70 C; 0 to 100 % relative humidity |
| Resistance | 10,000 Ω at 25 C |
| Input Voltage Requirement | 2.5 V DC excitation |
| Output Voltage Range | 0 to 2.5 V DC (assuming input excitation of 2.5 V DC) |
| Current Drain | 0.1 mA DC at 70 C (maximum, assuming continuous input excitation of 2.5 V DC) |
| Dimensions | 100 mm length, 6 mm diameter |
| Mass | 60 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 |
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