Key facts
- Brand
- Vaisala
- Model
- HMT330
- Industry
- Industrial
- Documents
- 9
- Languages
- JA · EN · FI · FR
- Last added
- 2012-04-06
Start here
Vaisala HMT330 DMT340 MMT330 Quick Reference Guide
This guide provides concise installation instructions for the Vaisala HUMICAP® HMT330, DRYCAP® DMT340 and HUMICAP® MMT330 transmitters. It covers key considerations for dew‑point, relative humidity and oil‑moisture measurements, recommended sampling‑system materials, and proper probe mounting to avoid condensation.
The document also details wiring recommendations (single screened cable 8‑11 mm diameter, 3‑10 conductors), standard mounting with four M6 screws, language‑selection menu on first power‑up, start‑up time for the DMT340 (≈6 minutes), and calibration information. Service center contacts for North America, Europe, Japan and China are provided.
Vaisala HMT330 specifications
| Cable diameter | 8‑11 mm |
|---|---|
| Start‑up time (DMT340) | about 6 minutes |
| Recommended sampling material | stainless steel (PTFE down to -40 °C) |
All Vaisala HMT330 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
How long does the DMT340 take to become operational after power‑up?
The DMT340 requires about six minutes for its self‑diagnostics before the outputs become active.
How do I configure the LAN interface on the HMT330?
Use the LAN interface module section (page 3) to connect the LAN cable, then configure IP settings via the web interface as described in the LAN communication chapter.
What is the procedure to set the analog output range?
Select the output mode and range in the analog output settings (page 117) using the display keypad or serial command interface.
How can the display language be changed?
The manual explains the steps under the "Kielen vaihtaminen" (Language switching) section.
How are LAN and WLAN connections configured?
Configuration is performed on the "LAN- ja WLAN-liitantéjen konfigurointisivu" (LAN and WLAN interface configuration page).
How do I configure the IP address for LAN communication?
Use the display/keyboard to access the IP configuration menu and set the desired address.