Photoionization Detector Module PIM CPN
User Manual
PIM_CPN - User Manual (en) - 1.08.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 18 of 48
7
Operation
7.1
Using the module
Operation scheme
After POWER ON the module performs initialization and warmup sequence and enters the IDLE state. In
IDLE state the module is ready to communicate, the lamp is switched off.
Entering the LAMP CHECK state is initiated by sending the appropriate commands. Thereby the lamp is
switched off and on and is tested. On successful lamp test the MEASURE state is entered.
When in MEASURE state the gas flow indicator value should be around 100 %. When low flow is detected for
60 seconds the module enters IDLE state by itself and switches off the lamp.
The lamp check may be repeated at any time by sending the appropriate command.
When in ERROR state the lamp is switched off. The ERROR state can only be left by switch off or reboot the
module by sending the appropriate command.
on failure
INIT
IDLE
LAMP CHECK
Action
‘
stop
’
or on
low flow
on failure
ERROR
POWER ON
on failure
WARMUP
Action
‘
reboot
’
Action
‘
start
’
MEASURE
on failure
WARMUP
Action
‘lamp
check’
