JWSL-7 series hand-held temperature and humidity transmitter instruction manual, mainly includes overview, technical parameters, appearance, wiring, use, precautions, maintenance, transportation, storage, unpacking inspection, troubleshooting and elimination, etc.
The JWSL-7 series hand‑held temperature and humidity transmitter is an integrated sensor‑transmitter designed for HVAC‑grade indoor environment monitoring. It can be used handheld or inserted into a measurement point and supports both 4‑20 mA current output and 0‑5 V voltage output.
The manual provides technical parameters, wiring details, installation guidelines, usage instructions, safety precautions, maintenance recommendations, storage and transport advice, as well as troubleshooting steps for common faults. This manual is written in Chinese.
| Power Supply | DC 24V (22‑26V) or DC 12V |
|---|---|
| Humidity Range | 0 %RH – 100 %RH |
| Humidity Accuracy | ±3 %RH (5 %RH–95 %RH, 25 °C) |
| Temperature Accuracy | ±0.5 °C (0 °C–50 °C) |
| Working Environment | -10 °C – 60 °C, 0 %RH–100 %RH non‑condensing |
| Output Signal | 4‑20 mA two‑wire or 0‑5 V voltage |
| Load Resistance (Voltage Output) | 250 Ω |
| Load Resistance (Current Output) | ≤500 Ω |
| Weight | ≈70 g |
| Enclosure Material | ABS gray |
It is recommended to calibrate the transmitter once a year to maintain measurement accuracy.
Red is the positive power or two‑wire temperature supply, Yellow is temperature output, Blue is humidity output, and Black is ground or two‑wire humidity supply.
The device can output a two‑wire 4‑20 mA current signal or a 0‑5 V voltage signal, with load resistances of ≤500 Ω for current and 250 Ω for voltage.