Oldham SharpEye NP40IGB, User Manual, Page: 34 / 50

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4.1.3 Keeping Maintenance Records
It is recommended that maintenance operations performed on a detector are recorded in a
Log-book. The record should include the following:
•
Installation date, and contractor
•
Serial and tag no.
•
Entries for every maintenance operation performed, including the description of the
operation, date and personnel ID.
If a unit is sent to Industrial Scientific or a distributor for service, a copy of the
maintenance records should accompany it.
4.2 Troubleshooting
This section is intended to be a guide to correct problems which may happen during
normal operation.
Table 22: Troubleshooting Table
Problem Cause Corrective Action
LEDs Off
Fault Relay at N.O 0-
20mA at 0mA No power at the unit
•
Check that the correct power
is sent to the detector.
•
Check power polarity.
•
Check wiring in the detector.
•
Send the detector back for
repairs.
Yellow LED flashes
at 4 Hz
Fault Relay at N.O 0-
20mA at 0mA Fault Detector
•
Low Voltage
•
Faulty
Detector
•
Check the voltage at the
detector; verify at least 24V
at the detector terminal.
•
Send the detector back for
repairs.
Yellow LED flashes
at 4 Hz
Fault Relay at N.O 0-
20mA at 2mA BIT Fault
•
Faulty
Detector
•
Clean detector window.
•
Re-power the detector.
•
Replace the detector.
Red LED constantly
on If no fire exists, then,
detector alarm
latched Perform Reset to the detector.
Alarm Relay at On 0-
20mA at 15mA Alarm condition
•
Check cause for alarm.
•
If no alarm, re-power the
detector.
•
Send the detector back for
repairs.