User's Guide _______________________________________________________________________
140 ______________________________________________________________________________
9.
Press the button
NaCl 75 %
to adjust the 75 % RH condition.
After adjustment transmitter returns to normal operation mode
(indicator led is unlit).
Using Display/Keypad
Note that the difference between the two humidity references must be
at least 50% RH.
1.
Carry out the chemical purge (if available).
2.
Press
the
ADJ
button
(opens the
ADJUSTMENT MENU
).
3.
Select
Adjust RH measurement
,
press ► button.
4.
Select
1-point/ 2-point adjustment
, press. Press
START
.
5.
Select the reference as guided by the display, press
SELECT
.
0706-005
Figure 70
Selecting Point 1 Reference Type
6.
Remove the filter from the probe and insert the probe into a
measurement hole of the dry end reference chamber (for
example, LiCl: 11 % RH in the humidity calibrator.
7.
Wait at least 30 minutes for the sensor to stabilize. Follow the
stabilization from the
GRAPH
display.
8.
Press
READY
when stabilized. If you have chosen the
Other
reference value, enter now the reference value by using the
arrow buttons.
When carrying out the 2-point adjustment proceed to the next
adjustment point and carry out the procedure as described in the
previous items.
9.
Answer
YES
to confirm the adjustment. Press
OK
to return to
the adjustment menu.
10. Press
EXIT
to close the adjustment mode and return to the basic
display. Before closing the adjustment mode, feed the
adjustment information into the device, see section Feeding
Adjustment Information on page 146
