This manual introduces the features and usage of Vaisala HUMICAP® Moisture and Temperature Transmitter for Oil MMT330.
This guide covers the MMT330 transmitter, describing its basic features, probe options, and typical oil‑monitoring applications. It includes safety, ESD protection, and regulatory compliance information.
The manual details wiring, LAN/WLAN configuration, MODBUS support, calibration, and maintenance procedures, along with optional modules and accessories. Appendices provide MODBUS reference tables and technical data.
Connect the transmitter to a 24 VAC power supply as described in the Signal and Power Supply Wiring section.
Use the LAN Communication settings and the Web Configuration for LAN and WLAN described in the guide.
Select the language option in the Display/Keypad menu to change the language.