Maintenance, Replacing the probe, Transmitter with integrated probe (wall model) – Vaisala GMT220 User Manual
Page 27: Transmitter with remote probe, Chapter 5
Chapter 5 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 27
CHAPTER 5
MAINTENANCE
This chapter provides information that is needed in basic maintenance of
the Carbon Dioxide Transmitter Series GMT220.
Replacing the Probe
The probe on the transmitter can be changed and replaced if necessary.
Transmitter with Integrated Probe (Wall
Model)
To replace the integrated probe, do the following:
1.
Open the cover
2.
Loosen the tightening screw on the transmitter body (see Figure 1
on page 9).
3.
Pull out the probe and install a new probe. Tighten the screw and
close the cover.
Transmitter with Remote Probe
To replace the remote probe, do the following:
1.
Loosen the clamping sleeve and pull the probe out, see Figure 2 on
page 10.
2.
Install a spare probe and tighten the clamping sleeve.
All the calibration electronics are in the probe. The new probe is
automatically identified by the control electronics of the transmitter.
NOTE
Disconnection of the probe causes an error and switches the relays OFF.