17
GG-6
Maintenance
All gas detection systems should be calibrated with certified calibration
gas once every six months. At this interval, all alarm functions and outputs
should be tested, verified and documented.
If sensor span or zero cannot be adjusted, the sensor may be approaching
its end of life and must be replaced. Keep an operation log of all
maintenance, calibrations and alarm events.
To clean the control panel, use a mild cleaning solution and soft cloth.
In the unlikely event that the fuse needs to be replaced, use a 3A, 250V,
5x20mm, slow-blow type fuse.
The operator interface has a backup lithium coin battery to run the real-time
clock and retain configuration memory while the system is powered down. A
low battery is indicated by a battery symbol on the display. If a low battery is
indicated, replace old battery with a Type CR2450 Li coin cell.
