Switches - GE HumiLab Operator's Manual

Switches

48
Page
Display switch. The
selects:
NEXT - A momentary position used when viewing or changing
displayed units, output units and scaling.
OPER - Normal operation.
SELECT - A momentary position used when viewing or changing
displayed units, output units and scaling.
Display switch operation.
units displayed in the main display, view or change units for the
analog output(s). In the Default mode, as shipped from the factory,
the actual analog output scaling can only be modified via the
RS-232 port, to avoid accidentally changing them when changing
displayed units at the front panel. (See "RS-232c re-programming
mode" on page 52 of this appendix.)
Balance switch. The
selects:
INIT - A momentary position that initiates a balance cycle, either
PACER AUTO
or .
MAN - No balance cycle unless manually initiated, using
AUTO - The PACER/AUTO
pre-selected interval.
See "Set balance type" on page 54 for details on resetting the balance
interval via RS-232 communication.
Sensor switch. The
selects:
COOL - A momentary position that initiates maximum cooling of
the chilled mirror sensor in order to verify its depression capability.
OPER - Normal operation.
HEAT - An on position that initiates heating of the chilled mirror
sensor in order to clear it of dew or frost and verify proper control
loop operation.
DISPLAY switch is a three-way switch that
The DISPLAY
BALANCE switch is a three-way switch that
cycle occurs automatically at a
SENSOR switch is a three-way switch that
Appendix B — Humilab chilled mirror hygrometer
switch is used to change the
INIT .