Vaisala HMT330 - Manual (Page 137)

Chapter 4 _________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 135
Starting and Configuring Chemical Purge
Using Buttons on Motherboard
Start manual chemical purge by pressing simultaneously two PURGE
buttons on the motherboard inside the transmitter for a few seconds.
Indicator LED flashes until purge is complete (up to 6 minutes).
0508-011
Figure 67 Purge Buttons on Motherboard
Using Display/Keypad (Optional)
1. Open the Main Menu
by pressing any of the ▼▲◄► arrow
buttons.
2.
Select ►Measuring, press ►button
.
3.
Select ►Chemical purge, press ► button.
1102-016
Figure 68 Chemical Purge Settings
- Start the chemical purge manually by selecting Start purge now
and pressing START.
- Select Purge on power-up by using the arrow buttons. Press
On/Off to turn the start-up purge on/off.
- Turn on/off the automatic purge by selecting Automatic purge,
press ►ON/OFF button.
- Set the automatic purge interval by selecting Interval: ..., press
SET. Set the purge interval and the unit (hour/day) by using the
arrow buttons. The interval must be 1 hour ... 10 days. Press OK.