Calibration And Adjustment; Battery Replacement - Vaisala HMT140 User Manual

Calibration and Adjustment

Calibration and Adjustment
HMT140 parameters are calibrated and adjusted using
viewLinc.
To view calibration status:
 On the Info tab, click Get. This page will display calibra-
tion information including calibration date, calibrator,
and next calibration due date.
Please refer to the Vaisala Veriteq viewLinc User's guide for
further information, or visit www.vaisala.com.
For calibration of HMP110D probes, refer to the
supporting documentation available on the Vaisala
website.

Battery Replacement

To replace the batteries and reset the battery meter of the
HMT140:
Open the HMT140 case. Use your thumb to press and
1
hold the release tab, located between the two glands,
then pull the cover out and up with your fingers. See
HMT140 Components Diagram on page 19 for location of
release tab.
Turn the power switch off.
2
Remove the batteries by pulling them up firmly. If the
3
battery does not come out easily, gently pull back on one
of the battery holder tabs first.
Note:
After replacing the batteries, press and hold the
4
SERVICE button and turn the power switch on. The LED
light will flash and the HMT140 will beep eight times.
Release the SERVICE button. At this point, the battery
5
meter is also reset.
CAUTION:Remove batteries before shipping
48
Use only Vaisala supplied batteries,
part #: 236318SP Vaisala 3.6V Lithium
Thionyl Chloride batteries.
VAISALA