5.1.2 PG11 Function check with the “Gas Free Test kit”
Using the Gas Test kit Gas Free, the Safety Function of the Gas Detector can be verified without
the need of a bottle of test gas. The Gas Free Test kit comes in several types rated for different
gases and with specified gas values. For example, to perform a Function test of an Alarm level
at 30 %LEL for Methane gas, select a Gas Free Test kit rated for Methane and a gas
concentration higher than the required Alarm level. Please see chapter 11 for an overview of
the different types of Gas Free Test kits.
Requirements:
1. Gas Free Test kit.
Procedure:
1. Remove the Environment Shield if the detector is fitted with such.
2. Verify that the Gas Free tester is rated for this Gas Detector.
3. Insert the Gas Free tester into the sensor section of the detector.
4. Observe that the detector indicator is showing gas alarm or that a gas response is
received at the site gas detection system.
5. With a response according to specification of the Gas Free tester the Gas Detector has
passed the test.
Document 022-80036-OM Revision R03 Page 24 of 48
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