Instructions / Assembly

APPENDIX C: Troubleshooting the 1800

PROBLEM 2

The zone input is not reading correctly.

a) No power connected to the transducer: Connect a power supply as

shown in Chapter 2.

b) Incorrect wiring: Inspect wiring. Make sure polarity is correct as shown

in Chapter 2.

c) The table range is incorrectly programmed: Program the table range for

the calibrated range of the transducer.

d) The input is not configured for 4–20mA: Configure the zone for

4–20mA. Refer to Chapter 4

e) Multiple devices connected in loop: The 1800’s zone is single-ended

and terminates to ground. Because of this, the 1800 must be the last

device in the loop, and in some cases the ONLY device. For certain

installations, it may be necessary to use a signal isolator.

SOUND LEVEL MONITORING:

PROBLEM 1

False high sound alarms occur frequently.

a) The programmed sound sensitivity results in over-sensitivity to non-

alarm sound as well as alarm sound: Reprogram the sound sensitivity

(calibration). Refer to Chapter 4.

b) Sound Recognition Time is too short: Lengthen the sound Recognition

Time. Refer to Chapter 4.

PROBLEM 2

High sound does not cause an alarm.

a) The microphone is not close enough to the high sound source, or the

programmed sound setting results in a lack of sensitivity to high sound:

Move the microphone closer or reprogram the sound sensitivity. Refer to

Chapter 4.

b) No remote microphone (optional) connected to the unit: Connect a

remote microphone to the Mic terminals.

OTHER MONITORING:

PROBLEM 1

Alarm status of a zone is incorrect.

Incorrect zone configuration.

Reconfigure the zone. See Chapter 4.