Vaisala DMT143 - Manual (Page 61)

Chapter 6 _______________________________________________________________ Maintenance
VAISALA ________________________________________________________________________ 59
CHAPTER 6
MAINTENANCE
This chapter provides information that is needed in basic maintenance of
the DMT143.
Periodic Maintenance
Cleaning
The body of the transmitter can be cleaned by wiping with a moistened
lint-free cloth. Do not immerse the transmitter in liquid, and do not use
cleaning agents or solvents.
Calibration
DMT143 is fully calibrated as shipped from factory. The recommended
calibration interval is two years. If there is a reason to believe that device
is not within the accuracy specifications, you can perform a field check
using the DM70 hand-held dewpoint meter.
If the field check indicates that the DMT143 is not within its accuracy
specifications, contact a Vaisala Service Center or your local Vaisala
representative to have the DMT143 adjusted.