Vaisala HMT310 - Manual (Page 63)

Chapter 6 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 63
CHAPTER 6
MAINTENANCE
This chapter provides information that is needed in basic maintenance of
HMT310, and lists contact information for technical support and Vaisala
Service Centers.
Periodic Maintenance
Calibration Interval
HMT310 is fully calibrated and adjusted as shipped from factory. Typical
calibration interval is one year. In certain applications it may be
advisable to do more frequent checks. Calibration needs to be done
always when there is reason to believe that the device is not within the
accuracy specifications.
You can carry out calibration and adjustment by yourself, or you can
send the transmitter to Vaisala Service Centers for recalibration.
Replacing Consumables
Filter Change
1. Remove the filter from the probe.
2. Install a new filter on the probe. When using the stainless steel
filter, take care to tighten the filter properly (recommended force is
130 Ncm).
New filters can be ordered from Vaisala, see Parts List for Consumables
on page 64.
Sensor Change
You can change Vaisala HUMICAP
®
180R sensors.