Appendix B — Humilab chilled mirror hygrometer details
Page
53
the main menu, press
ESC
twice. Note that the menu is not avail-
able when
BALANCE
mode is active. Also, when menu functions are
active, the Electronics Module deactivates the sensor cooler control
circuit and allows the sensor mirror to rise to ambient temperature.
The front panel display of the Humilab will also blank. Press
E
from
the main menu to return to Operate mode.
The Main Menu
1) SCALE OUTPUTS 2) SET BALANCE TYPE 3) SET RS232 UNITS
4) DISPLAY OPTION 5) SET AVERAGING 6) CALIBRATE OUTPUT1
7) CALIBRATE OUTPUT2 8) SET ALARM 9) SET INPUT 2 PARM
A) MOLECULAR WEIGHT E) EXIT
Scale outputs
From the main menu, press
1
to assign and scale the analog
outputs. The current state of the output(s) is echoed, followed by a
sub-menu:.
OUTPUT1:
DP C:
HIGH =60 LOW = -40
OUTPUT2:
TMPC:
HIGH=60 LOW=-40
1) OUTPUT1 2) OUTPUT2 E) EXIT
Press 1 to access Output1, the Humidity output. One of the
following menus will appear:
OUTPUT1:
0) DPC 1) DPF 2) RH E) EXIT
Make a parameter selection, or press
E
to exit.
If you make a parameter selection, the following then appears:
HIGH =
Enter a value and press
RETURN
. The following appears:
LOW =
Enter a value and press
RETURN
. The values entered will be echoed
and you will be returned to the Scale Outputs sub-menu.
You can now press
2
to set Output2 in the same manner. The only
difference is the parameters which are available:
