TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook GD10-P00, Operating Manual

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GD10-P00 and GD10-PE0
INFRARED POINT GAS DETECTOR
OPERATING MANUAL
30 850-811250
Revision 13b
3) Apply gas as shown. If there is no air movement, a test gas flow of minimum four liters per
minute will give approximately the same value as the test gas.
If there is an air movement of 0.5 m/sec., the test gas flow has to be increased (up to 20
liters per minute) to get a reasonable reading. Covering the ventilation grille will also help
getting a higher reading. However, you may not be able to reach the actual gas
concentration, any reading above 10% is OK.
7.3 Calibration test
A calibration test is not required to verify the correct function of the detector. Normal
maintenance of the detector is covered by the simple function tests described in
sections 7.1 and 7.2. The following calibration test is only applicable if it is required
by regulations or in cases where you need to verify system performance during
commissioning or similar thorough testing.
The GD10P/PE detectors have a fixed calibration from the factory. A calibration test is thus just
a test. There are no means to change the calibration on-site.
In order to perform calibration test, two alternatives can be used depending on the material on
site.
7.3.1 Using Sample Flow Housing
First alternative is to use a calibrated gas and apply it via a Sample Flow Housing (reg. no. 499-
810874 for GD10P or 499-815733 for GD10PE).
1) Remove the Weather Protection and clean the optical surfaces.
2) Attach the Sample Flow Housing. This is just press fit with two o-ring seals. Please note that the
seals are not equally sized, so note the location of the test nozzle close to the detector
housing.
3) Apply a certified test gas of approx. 50 % of GD10P/PE calibrated range as shown in the
drawing. The test gas should be the same as the target gas. Humidity of the test gas is: 0-
100% RH uncondensed.