ABB ACF-NT Operator's Manual page 14

"Control Panel" Screen,
Maintenance Control
FTIR Control
Flow Control
Archive Data
14
continued
MAINT. Operate before starting
MODE and after finishing
maintenance work
("Maintenance Key
Switch")
MANUAL Manual activation of
REF. reference spectrum
recording, e.g. for restarts
SHUT Manual activation of purge
DOWN air for the gas sampling
probe
AVERAGE Acquisition of average
TRIGGER values, e.g. for LOD or
standard deviation
SAMPLE Sample gas supply (normal
GAS operation)
ZERO Zero gas activation. Supply
LOCAL directly to the sample cell
or via the probe
ZERO
PROBE
TEST Test gas activation. Supply
LOCAL directly to the sample cell
or via the probe
TEST
PROBE
Function not yet available
Operator's Manual ACF-NT, ACF-NT V0309 42/23-572 EN Rev. 5