GE HumiLab, Руководство оператора, Страница: 54 / 80

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Appendix B — Humilab chilled mirror hygrometer
• To begin programming the Electronics Module, press the DIS-
PLAY switch to NEXT . (You may have to keep the switch
pressed for 1-2 seconds in order to see a change.)
• The Electronics Module will leave Operate mode, enter Pro-
gram mode and display the first of the three main functions.
While you are programming the Electronics Module, it will not
display or output measurement data.
• Press NEXT to display the next menu or option.
• Hold the switch in the NEXT position to scroll through all the
options available. When you get to the end, the Electronics
Module will return to Operate mode.
• Press SELECT to access the displayed function or accept a set-
ting displayed on the main display.
The following two sections map out the functions available in
Program mode along with the state of the three green LED’s at each
step.
• N will display the next function or scroll through alphanu-
meric values. Depress NEXT for 1-2 seconds
• S will access a function or accept a new value. Depress NEXT
for 1-2 seconds
A more
rigorous
explanation of
the option
selection
system
The following description describes the DEFAULT programming
sequence for a unit as shipped from the factory. If the behavior of
the
DISPLAY switch has been modified, using the RS-232C port, the
description may not be accurate.
Default operation.
• From OPERATE mode, Press N .
• The main display and parameter annunciator blank, and the
CONTROL STATUS display shows “ U ” in the upper display. If
you press S , you can scroll through all the parameters avail-
able for display and select one. For now, press N . You can now
do the same for the bottom display.
• The CONTROL STATUS display shows “ O ”, and the parameter
annunciator shows “Humidity.” If you press S , you can view