Vaisala HMT100 - Manual (Page 33)

Chapter 4 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 33
10. Choose LiCl-NaCl autom. from the MI70 adjustment menu and
press SELECT . Press OK to accept the note telling about
references.
11. Press READY when the reading has stabilized in the LiCl salt
chamber (may take 30 minutes or more). You can follow the
stabilization from the
GRAPH display.
12. Remove the probe from the LiCl salt chamber and insert the
probe head into the NaCl salt chamber.
13. Press READY when the reading has stabilized in the NaCl salt
chamber (may take 30 minutes or more). You can follow the
stabilization from the
GRAPH display.
14. Confirm the adjustment by pressing YES (by pressing NO you
return to adjustment mode display and no changes are made).
15. The adjustment is done. Press BACK and EXIT to return to the
basic display.
16. Turn off the MI70 and detach the connection cable.
Temperature Field Check and Adjustment by Using a
Calibrated Reference Probe
Follow steps 1 to 7 on page 30 and continue as follows:
8. Check that the probes are located in equal conditions and wait
until the readings are stabilized (can take 30 minutes or more). If
you are close to the probes, do not breathe in their direction.
9. Press ADJUST to continue adjusting.
10. Press To same as T
II/I
, press SELECT . (MI70 always recognizes the
port to which the HMP70 series probe is connected).
11. Confirm by pressing YES .
NOTE If the temperature difference between the reference probe and HMT100
is too large, the adjustment cannot be done (HM70 will notify you of
this). The available reserve for T adjustment of HMT100 depends on
the initial temperature calibration of the unit.
12. Adjustment is done. Press BACK and EXIT to return to the basic
display.
13. Switch off the MI70 and detach the calibration cable from MI70
and from the transmitter.