The HMD70U/Y is a humidity and temperature converter designed for industrial environments. It measures relative humidity from 0 to 100 %RH and temperature from –20 °C to +80 °C, offering high accuracy and a 15‑second response time.
The manual covers mounting with two screws, electrical connection to a 24 VAC supply, optional current‑output module installation, calibration procedures using Vaisala HMT41, spare‑part lists, sensor‑head removal and re‑installation, technical specifications, and warranty information. This manual is written in Japanese.
| Temperature measurement range | -20 °C to +80 °C |
|---|---|
| Relative humidity range | 0 %RH to 100 %RH |
| Accuracy (after output change) | ±0.5 %RH |
| DC supply voltage range | 0 V to 1 V (selected output) |
The converter is mounted with two screws; drill the mounting holes using the provided template and optionally add calibration holes.
A full accuracy check is recommended at least once a year, though the interval may vary with operating conditions and required precision.
Open the circuit cover, disconnect the terminals, loosen the two screws, remove the head, then press the new head in, secure the screws, reconnect the terminals, and close the cover.