Test Procedure For Detection Lines - Honeywell NOTIFIER AM-8200 Installation Manual

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Before powering the control unit lines, check the following values:
NOTE: A DIGITAL MULTI METER IS REQUIRED
Line resistance
The direct current resistance of the negative wire of the loop SHALL NOT exceed 20 Ohm.
The measurement must be performed by disconnecting the channels "A" and "B" from the LIB
Multi meter points are to be connected to the Negative wire terminals.
To have the total loop wire resistance, multiply by 2 the value read on the Negative side.
Line insulaton
Place between (+) and (-) of line through a tester, with sensors or modules installed and check the following:
Test 1:
Connect : Tester (+) / Line (+) and Tester (-) / Line (-)
Check : Resistance: 1 - 1.3 MOhm
Test 2:
Connect : Tester (+) / Line (-) and Tester (-) / Line(+)
Check : Resistance: 0.7 - 0.9 MOhm
Screen shield insulation from the cable/line
Place a test prod of the tester on the line cable screen and the other test prod on the positive cable (+) of the
same line. The resistance measured must be higher than 15-20 MOhm, better if "infinitive".
Perform the same operation between the line screen and negative cable (-). Check that also in this case the
resistance is higher than 15-20 MOhm.
Earthing /lines insulation
Place a test prod of the tester on the system earthing and the other test prod on the positive cable (+) of the line;
the resistance measured must be higher than 15-20 MOhm, better if "infinitive".
Perform the same operation between the earthing and negative cable (-) of the line. Check that also in this case the
resistance is higher than 15-20 MOhm.
Earthing /cable screen insulation
Place a test prod of the tester on the system earthing and the other test prod on the cable braid; the resistance
measured must be higher than 15-20 MOhm, better if it is "infinitive".
Line voltage
With the sensors/modules line connected, the line output voltage must be 24 Vcc without the device query (no
programmed Point). A voltage much lower than 14 Vcc indicates a connection inversion of sensors or modules.
AM-8200
AM8200_manu-inst

Test procedure for detection lines

Positive
Side B
Negative
Side A
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Installation Manual
Doc. M-162.2-AM8200-ENG Rev A.2
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