GASLAB Q2 DISPLAYS (OPERATE THE DEVICE) 
Information for general use 
Rev. M / 73023639 
 
7.1.  LEDs above the interactive screen 
There are two multi-colored LEDs positioned above the interactive screen. The Power LED on the 
left and the Status LED on the right. They are simulated on the remote operation panel. 
Their  color  and  behavior  (permanently  lit  or  flashing)  indicate  whether  the  measuring  device  is 
operating flawlessly or whether an error is or has been active. 
 
Power supply off, no connection no operation 
Power supply on, connection and operation possible 
Power supply off, no connection no operation 
Start-up phase after restoration of the power supply 
There are no entries in the error list. The device functions perfectly in 
measuring mode. 
Information  on  the  error  list  see  section  7.3.8  Error  List  –  Main  display  (accepting  /  quit  error 
messages). 
A red or yellow status LED indicates that there are pending errors or errors which have not been 
accepted. (The LED status will be retained even after a restart and will be redisplayed.) The status 
LED shows the error state as follows (in sequence of priority): 
 
The error list contains at least one pending alarm which has not been 
accepted. 
The error list contains at least one pending warning which has not been 
accepted. 
The error list contains at least one alarm which has already ended but has not 
yet been accepted. 
The error list contains at least one warning which has already ended but has 
not yet been accepted. 
Honeywell can provide assistance with troubleshooting work.  
The Contact details are provided at the start of this document.