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9.2. Interpreting Fire ARM Measured Results
Once you've used the Analyzer to test the activation current supplied by the Fire ARM, the Analyzer will display the
results on the front panel as either Fire ARM PASSES or Fail REPLACE ARM.
When the Analyzer is used to test the supervisory current supplied by the releasing panel or module, it will display
the supervisory current reading in milliamps. The acceptable supervisory current reading at the Fire Suppression
ARM is 24mA +/- 4mA.
9.3. Fire ARM Testing Procedures
1.
WARNING!
Before you begin, power off the panel, allow the caps to discharge (about 10 min.), then shunt all
GCA's (per 06-106 ARM III Rev 2) connected to the system before proceeding!
2. Connect the Analyzer to the ARM as shown in Figure 9.3-1 below
Fire
(EPC Only)
Shunt
Enter
Select
3. Remove the 0Ω Shunt from the Analyzer. The supervisory current will be displayed (.20mA - .54mA).
ARM Supervisory
Current 0.32mA
4. Record the ARM supervisory current reading for future reference, since subsequent tests will override current
test data.
5. Install the 0Ω Shunt onto the Analyzer. The display will read "Ready for Test." Reset the panel if required to
obtain a normal panel, and wait 60 seconds for the capacitor to charge.
ARM ANALYZER
Ready for Test
6. Activate the ARM by initiating an input (pull station or test switch) that will cause the panel output to trigger
the ARM.
Doc. P/N 06-905
Rev. 1 / December 2018
Figure 9.3-1 Fire ARM Circuit Activation Current Test
PAGE / 13
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