Using Service Port - HMM100

HMM100 User Guide

Document code
English (United States)
Document type
User guide

The HMM100 has an RS-232 interface on the component board for service use. You can connect to it through the 4-pin M8 service port connector on the module. Vaisala offers an optional USB cable (Vaisala order code 226068) for connecting the module to your PC.

The service port is intended for short-term use such as calibration. For permanent installation, use the analog output.

The cable does not provide operation power to the module; you must power it normally through the screw terminals.

If you have not used the HMM100 USB cable before, install first the driver that came with the cable.