GD10P00 and GD10PE
INFRARED POINT GAS DETECTOR
OPERATING MANUAL
850-811250
Revision 13b
29
7
Maintenance
The GD10P and GD10PE has no user adjustable parts. It is not recommended to open the
GD10P, as this will change the internal atmosphere, and the initial calibration could be affected.
Opening the GD10P/PE voids all warranty offered at the time of sale.
Periodicity of the maintenance must be adjusted (reduced) when the
equipment is exposed to conditions defined by the IP ratings.
7.1
Cleaning of optical lens/mirror
Remove the weather protection by unscrewing the front cover plate (two screws), use a soft, clean
tissue to rub off the contamination. The window and mirror are made of sapphire, which is highly
resistant to scratching. Make sure that the whole optical surface is clean.
For difficult contaminants the mirror and lens can be cleaned with an equal-
part mixture of isopropyl alcohol and water. Do not perform any testing of
the detector before this solution has dried and residues have been wiped
away.
7.2
Function test
In order to perform function test of the detector, a test gas can be applied through a 6 mm test
nozzle on the front of the Weather Protection housing as shown in the figure and observe the
effect on the detector 4-20mA analog output or through the control system.
This is a simple test to verify the main function of the detector, please note the actual reading may
be substantially lower than the calibration gas concentration due to leaks/ventilation of the
weather protection. As long as the detector responds to the gas, the function of the detector is
verified.
1) Clean the optical surfaces
2) Verify that the zero point (at no gas) is within the tolerance for the detector. Normal readings
should be below 4.5mA
Summary of Contents for Everywhereyoulook GD10-P00
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