The HMD50Y (temperature & humidity) and HMD50U (humidity only) are duct‑mounted transducers that provide capacitive polymer sensor measurements for temperature and relative humidity. They are designed for use in HVAC and environmental monitoring systems and output a 0‑10 V analog signal.
The manual details the mounting procedure, wiring connections, power requirements, and safety precautions. It also lists the device's measurement ranges, accuracy, and environmental limits, and provides guidance for troubleshooting and after‑sale service. This manual is written in Japanese.
| Temperature measurement range | 0‑100 °C |
|---|---|
| Temperature accuracy | ±0.3 °C |
| Power consumption | ≤120 mW |
| Supply voltage | DC 2‑4 V |
| Housing material | ABS resin |
| Weight | ≈160 g |
| Storage temperature range | -40‑60 °C |
The transducer operates from a DC supply of 2 V to 4 V.
Drill four mounting holes and a pipe‑through hole as shown in the diagram, attach the bracket with screws, and insert the sensor cover into the bracket.
The overall temperature accuracy is ±0.3 °C.
Contact Vaisala’s sensor system service department or the dealer from which the product was purchased.