Harrington Signal HAVED-MP User Manual
Page 10
P/N HS-5010 REV. C
page 10 of 12
Component Measured
Voltage DC to Chassis Ground
Resistance Range to cause Ground
Fault in Standby
(measured in 5K increments)
MX-MBR W/STROBE
SPKR +
SPKR -
SPKR +
SPKR -
PS CONNECTED
23.5
10
<345K - 350K
<120K - 125K
MX-MBR FIRE PHONE
PHONE +
PHONE -
PHONE +
PHONE -
CONNECTION (TB5, TB6)
21
-3
<295K - 300K
<30K - 35K
MX-MBR W/EVX-ZAB
SPKR +
SPKR -
SPKR +
SPKR -
CONNECTED
24
10
<240K - 245K
<80K - 85K
MX-MBR W/EVX-ZA
SPKR +
SPKR -
SPKR +
SPKR -
CONNECTED
24
9
<240K - 245K
<65K - 70K
MX-FPI W/MX-FPR
PHONE +
PHONE -
PHONE +
PHONE -
CONNECTED
21
-3
<205K - 210K
<20K - 25K
MX-FPI W/MX-FPO2
PHONE +
PHONE -
PHONE +
PHONE -
CONNECTED
21
-3
<205K - 210K
<20K - 25K
EVX-25(E),-50(E), -100(E)
SPKR +
SPKR -
SPKR +
SPKR -
PRIMARY AMP
24.5
10
<260K - 265K
<90K - 95K
EVX-BAB
SPKR +
SPKR -
SPKR +
SPKR -
24
10
<260K - 265K
<80K - 85K
Annunciation of “Ground Faults” on Notification Appliance Circuits
The following test points are provided to show voltage reading at terminals.
The K ohm resistance values shown annunciate a “ground fault” at panel.
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Moline, IL 61265
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(309) 762-8215 (f)
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