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INFICON Helium Leak Detector Modul1000 User Manual

Page 93

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Technical Data

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CAL INT

Edge-controlled input

Change from LOW to HIGH: start internal automatic calibration.

CAL EXT

Edge-controlled input

Change from LOW to HIGH: Start external manual calibration.

CYCLE (inverted START / STOP input)

Status-controlled input

Change from LOW to HIGH: In the Standby status, START will be executed and in
the Measurement status, STOP will be executed.

GAS BALLAST ON

Edge-controlled input

Change from LOW to HIGH: The gas ballast valve is opened.

GAS BALLAST OFF

Edge-controlled input

Change from LOW to HIGH: The gas ballast valve is closed.

ZERO ON

Edge-controlled input

Change from LOW to HIGH: Activate ZERO

ZERO is switched off, when the devices switches over to Standby.

SNIFF

Status-controlled input

Change from LOW to HIGH in Standby mode:
Switching over to the SNIFF mode.

Change from HIGH to LOW in Standby mode:
Switching over to the set operating mode.