INFICON Sensistor ISH2000 Hydrogen Leak Detector - Manual (Page 39)

Hydrogen leak detector Sensistor ISH2000 - Operating Manual
OM-Sensistor ISH2000-EN-201304 39
EN
Fig 8-4. Status signals after power on.
When detecting a gas signal
Fig 8-5. Status signals when detecting a gas signal.
8.16 Printer port
The Sensistor ISH2000 is equipped with a serial printer port. This is the 9-pin D-type
connector. It is used for printer connection, RS232 commands and APC driver
installation.
Connector pin configuration
The printer port is a standard 9-pin male D-sub. The connecting cable is a standard
9-pin file transfer cable (Null Modem Cable). For the pin configuration refer to Table
8-4.
Table 8-4. Pin configuration of the printer port.
Power on Power off Warming up
DET_SIGNAL
LEAK_OUT
DET_WAIT
DET_ON
DET_ERROR
Locating or Measuring
Mode. No gas detected.
Gas signal
Purge level
Detector signal level
0 ppm
DET_SIGNAL
LEAK_OUT
PURGE_LEVEL Trig-
ger (APC)
Purge level
Reject level
NOTICE!
Always switch power off before disconnecting or
connecting any cable.
Pin Signal Comments
1 (DCD) Not used
2 RD Received data
3 TD Transmitted data
4 (DTR) Not used