820-0003
IPES IR3 Flame Detector
Operating Manual
Page
25
of
37
9.0 Maintenance
Maintenance
Activities
IPES
‐
IR3 maintenance includes the following activities:
•
Visual examination
•
Cleaning
•
Checking the grounding and explosion
‐
protection systems
•
Performance test.
This section describes maintenance activities to be performed once a day or every six months. Automatic testing is also
discussed
.
Daily Maintenance
Visual Examination
Perform a daily examination of the IPES
‐
IR3, checking for any visible mechanical damage such as dents to the enclosure
or a cracked lens. If any damage is noted, immediately pull the detector from service and replace with a new detector.
Every Six Months
Every six months, or as required, perform the following:
Cleaning
Clean the IPES
‐
IR3 every six months (if there is no visible severe contamination) or as required if the signal
“
Fault
”
arises;
also clean the surface of the detector if it is covered with dust. To clean the detector:
•
Enclosure
‐
Remove dust from the enclosure with a brush or a soft cloth slightly wetted with denatured isopropyl
alcohol (IPA). After wiping the surface with alcohol, wipe again with a clean dry cloth to remove any residual dirt.
•
Protection windows
–
Clean with a soft cloth wetted with denatured isopropyl alcohol (IPA). After wiping the
surface with alcohol, wipe again with a clean dry cloth to remove any residual dirt.
Grounding and Explosion‐Protection Systems
Check to be su
re that the joints are sufficiently tight. Thoroughly clean the external grounding wire and apply anti‐seize
lubricant (supplied by the manufacturer) on the critical joints.
Perform this test on all detectors in the system.
1.
Apply power to the detector. After 1 to 5 seconds, the output current will increase to 4 mA, and the indicating LEDs
will start blinking.
2.
If it is necessary to isolate the detector fire relay from the alarm system, apply the magnetic collar over the
enclosure as shown in Figure 7‐1. Placing the collar over the enclosure as shown allows the fire relay contacts to
remai
n in the non‐alarm state during testing.
3.
Perform the test with the ITES Test Lamp as follows:
•
Attach the Magnetic
Collar with the Magnet placed into the slot on the enclosure. This will put the IPES‐IR3
into Fault Mode and the status LED will change from Green to Yellow indicating a Test function.
•
Point the laser beam at the mid‐range sensor 4.45 uM IR detector.
Thi
s will set the IPES‐IR3 into fire indication
mode. The status indicator will now blink yellow‐red indicating both Fault and Fire conditions.
•
To prevent a false alarm during this test, the Fault relay will be actuated (In an open state) and the Fire relay
will remain in a not active state (Open)
•
The 4 to 20mA will indicate 2mA for Test Mode with magnetic collar on
If any detector fails this test, refer to Section 8.0, Troubleshooting.
4.
Once testing is complete, remove the magnetic collar before re
connecting the detector to the fire‐alarm or
burglar‐fire alarm system.
Disconnect or power down all output devices and alarms to prevent
false actuation.
