Emerson Rosemount 975MR, Reference Manual

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3.3.2 Manual built-in test
To perform a manual built-in test:
NOTICE
If the function setup Alarm BIT and or Auxiliary BIT are set to YES (default NO), the alarm,
auxiliary relay, and 0-20 mA outputs are activated during a manual built-in test. Therefore,
you must disconnect automatic extinguishing systems or any external devices that may be
activated during the built-in test.
Procedure
1. Verify that the detector is in Normal mode.
2. Initiate the manual built-in test.
The results of succcessful and unsuccessful manual built-in tests are detailed in
Table 1-14 and Table 1-15 .
3.3.3 Testing with flame simulator
Use the flame simulator to simulate exposure of the detector to a real fire condition. The
flame simulator exposes the detector to radiation at the required detection level. As a
result, the detector generates a fire alarm signal.
See Flame simulator for more information.
NOTICE
If the detector is exposed to a flame simulator, the alarm and accessory relays and 0-20
mA are activated during the simulation. Therefore, disconnect automatic extinguishing
systems or any external devices that may be activated during this process.
To perform a flame simulator test:
Procedure
1. Power up the system and wait up to 60 seconds for the detector to turn to a normal
state.
The power LED turns on.
2. Aim the flame simulator at the target point of the detector, in a way that the
radiation emitted by it is facing directly towards the detector.
See
Flame simulator .
3. Press Operation once.
After a few seconds, a successful test shows the results shown in Table 3-2 .
Table 3-2: Results of a Successful Flame Simulator Test
Component Action Notes
0-20 mA Turns to 20 mA For a few seconds and then
returns to 4 mA
Reference Manual Operating the detector
00809-0100-4975 August 2019
Rosemount 975MR 41