GasSens Gas Detection System Section 2 - A14 Receiver Module
O & M Manual
A14-RK, 8/06 2 - 12
Auto-Test Remote Verification
A14 Receiver modules with a software revision G or higher use the analog output to indicate
that a successful Auto-Test has occurred. This allows a recording device to show evidence of the
successful test. During an Auto-Test, the 4-20 mA output is locked at 4 mA while the test is in
process. If the test is successful, the output will go up by 3% (to 4.48 mA) and will remain at that
value until the 10 minute inhibit period is complete, after which it will return to 4 mA.
Deactivating the Auto-Test Function
A14 Receiver modules with software revision G or higher have the capability of temporarily
deactivating the Auto-Test function without having to open the module and change the DIP switch
that controls this function. This might be necessary if an Auto-Test failure has been traced to a
failure of the generator. If proper sensor operation has been verified, the automatic daily
activation of the test function can be bypassed until a replacement generator has been installed.
To deactivate the Auto-Test, press and hold the A/R button for a full 15 seconds. As you hold
the button, the lamps will turn on and then shut off again. Finally, the green power LED will shut
off so that there will be no lamps lit at all. Release the A/R button. After this is done, you will see
the green LED periodically flash quickly. This is simply a visual reminder that the Auto-Test has
been temporarily deactivated.
To return the receiver to normal operation, press and hold the A/R button until all the lamps
and display segments light up. Then let go of the switch and the unit will return to normal
operation. Alternately, simply turn the power off and then back on. This will also override the
temporary inhibit.
NOTE: If power goes off while the Auto-Test is temporarily deactivated, it will come back on in
normal mode. You must again deactivate the Auto-Test again or it will attempt the test 24
hours later.
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