Firefly OMNIGUARD 540 Service manual

OMNIGUARD
MODEL 540/545
TEST SOURCE
Operating and service manual

2©Firey AB (November 2015)
Description
The Omniguard model 540/545 test source is a self-contained,
portable, hand-held, explosion-proof device designed to stimulate
Omniguard ame detectors.
Model 540
The model 540 is designed for to test Omniguard UV/IR ame
detectors. The model 540 contains a rechargeable battery and
circuitry to power two light sources which emit a calibrated ratio of
ultraviolet (UV) and infrared (IR) energy simulating the spectral radiant
characteristics of a ame source.
The model 540 is not an absolute calibration source however, and
is only intended to generate sucient UV and IR radiation in a ratio
recognized by the ame detector as being representative of a ame
source, thereby initiating a re relay closure and subsequent alarm.
Proper calibration of Omniguard ame detectors can only be achieved
by the manufacturer using open ames and sophisticated test
equipment.
Model 545
The model 545 is designed for to test Omniguard UV/IR ame
detectors, Omniguard Multi-Spectrum IR ame detectors, Omniguard
UV ame detectors.
The model 545 contains a rechargeable battery and circuitry to power
two light sources which emit a calibrated ratio of ultraviolet (UV) and
infrared (IR) energy simulating the spectral radiant characteristics of
a ame source for a UV/IR ame detector. The light source for the IR
energy has been ltered to the correct spectral radiant characteristics
of a ame source for a Multi-Spectrum IR ame detector. The
light source for the UV energy has the correct spectral radiant
characteristics of a ame source for a UV ame detector.
The model 545 is not an absolute calibration source however, and
is only intended to generate sucient UV and IR radiation in a ratio
recognized by the UV/IR ame detector, IR radiation recognized by the
Multi-Spectrum IR ame detector or UV radiation recognized by the
UV ame detector as being representative of a ame source, thereby
initiating a re relay closure and subsequent alarm.
Proper calibration of Omniguard ame detectors can only be achieved
by the manufacturer using open ames and sophisticated test
equipment.
Application
Model 540
The model 540 test source is designed to test Omniguard Models 730,
750, 850, 860 UV/IR ame detectors.
Model 545
The model 545 test source is designed to test Omniguard Models 730,
750, 850, 860 UV/IR ame detectors, Omniguard Model 760 Multi-
Spectrum IR ame detector and Omniguard Models 651, 652, 653, 654,
655, 656, 657, 658, 660 UV ame detectors.
Specications
The model 540/545 test source is approved for use in Class I, Division 1,
Groups C and D areas. Third party testing has been performed by
Canadian Standards Association (CSA).
Performance
Model 540
Typically a fully charged model 540 test source will work eectively
at a range not to exceed 15 feet (4.6 meters) when aimed directly at
the face of a detector. The eective test distance to the ame detector
and number of tests achievable on a full charged battery will vary
depending on the Omniguard ame detector model and the user
selectable settings.
Model 545
Typically a fully charged model 545 test source will work eectively at
a range not to exceed 10 feet (3 meters) when aimed directly at the
face of a detector. The eective test distance to the ame detector
and number of tests achievable on a full charged battery will vary
depending on the Omniguard ame detector model and the user
selectable settings.
Operating instructions
Cautions: For safety reasons, the following operational cautions must
be understood and strictly adhered to while using the model 540/545
test source:
• Do not look at or aim the test source in the direction of another
person. When powered, the ultraviolet radiation generated by the
model 540/545 test source can permanently damage eyesight.
• Due to its size and weight (13 pounds (5.9 kilograms)), care should
be taken when climbing ladders etc.
• Charging the model 540/545 should only be performed in non-
hazardous environments with approved charging device. After
charging has been completed, replace and securely tighten the
charging plug access cap prior to entering a hazardous area.
• Never energize the model 540/545 while it is being charged
• Deactivate all automatic re suppression systems prior to testing
the ame detectors to avoid unwanted discharging of the
suppressant.
Operation
The model 540/545 test source is shipped with an uncharged battery
and will require full charging prior to use.
Remove the charging plug access cap located in front of the handle on
the top side of the test source. Do not remove the rear cover. First plug
the connector of the Omniguard charger (Firey part no. 22663) into
the test source socket, then plug the charger into the AC outlet. Allow
the test source to charge for a full 16 hours. Do not turn on the test
source while charging.
Remember to securely tighten the charging plug access cap after
charging is complete to maintain the explosion–proof integrity of
the test source. In a fully charged state, the test source will typically
provide 30 to 45-second tests.
To perform a simulated ame test, it is important to face the ame
detector as squarely as possible at a maximum distance of:
• Model 540 test source: 15 feet (4.6 meters), or in the case of the
Omniguard 753, 9 feet (2.74 meters).
• Model 545 test source: 10 feet (3 meters), or in the case of the
Omniguard 753, 9 feet (2.74 meters).
The extremely narrow beam width of the IR light source requires use
of the sighting tube for reliable operation. Proper aiming is achieved
when the following conditions are met.
• UV/IR ame detector: The smaller window (IR channel) should be
centered within the viewing angle provided by the sighting tube.
• Multi-Spectrum IR ame detector (model 545 only): The center
of the two windows should be within the viewing angle of the
sighting tube.
• UV ame detector (model 545 only): The large window should be
within the viewing angle of the sighting tube.
Note: O-axis aiming of the model 540/545 test source will result in a
reduction of sensitivity (test distance) and is not recommended.
To initiate a test, pull back on the slide trigger. Release the trigger only
after the ame detector has alarmed or sucient time has elapsed
in which the detector should have gone into an alarm state. Do not
maintain trigger engagement for periods longer than 10 seconds.
Omniguard ame detectors are typically set at the factory for a re
relay actuation time delay of three seconds. In order to perform a
simulated re test and activate the re relay it is necessary to maintain
aiming of the test source on the ame detector for the duration of the

3©Firey AB (November 2015)
time delay setting. It is not recommended that the model 540/545 test
source be used for testing ame detectors with delays exceeding three
seconds.
Upon release of the model 540/545 trigger, a period of approximately
60 seconds is required for the battery pack to regain full capacity. The
model 540/545 circuitry includes a lock-out feature; attempts to retest
prior to completion of battery recovery period will result in no output
signal being generated from the 540/545 test source.
The quartz halogen lamps used in the model 540/545 generate
signicant amounts of heat during use. Therefore, when using the test
source, it is recommended that in cases where several tests of up to
ten seconds duration are to be made, cool-down periods are allowed
between successive tests. It is important to note the case temperature
during use and allow the model 540/545 to cool if it becomes
noticeably warm to the touch.
Failure of the ame detector to respond indicates one of the following:
• The distance between the test source and the ame detector is too
great.
• Aiming of the test source was not accurate enough to excite both
channels of the ame detector.
• The ame detector under test is inoperable.
• The ame detector optics (windows) require cleaning. Clean the
optics and repeat the test.
• Obstructions between the ame detector and test source may
be preventing sucient“light energy” from reaching the ame
detector face.
• The test source battery may have insucient charge or is
malfunctioning.
Battery pack maintenance
In order to ensure long life capacity of the NiCad battery pack please
use the following suggestions.
• New battery packs will require 4 to 6 full charge/discharge cycles to
reach full capacity.
• Allow the battery pack to fully discharge before recharging it. The
NiCad chemistry will allow for proper operation until it nears the
end of its charge cycle. Recharging the battery pack prior to being
fully discharged can change the battery chemistry and shorten the
discharge cycle.
• Allow the test source and battery to fully cool before charging.
Ø137 (5.38)
292 (11.5)
RECHARGING PORT
PULL TO
OPERATE
246 (9.7)
Ø142 (5.56)
BATTERY CONNECTOR J1
(WITH END CAP REMOVED)
Measurement in [mm] ([inches])
SIGHTING TUBE
UV SOURCE
IR SOURCE
Battery pack replacement procedure
Caution: Do not open and or attempt to replace the battery pack in
hazardous environments.
1. Loosen the two 4-40 set screws in the rear cover using a .050 Allen
wrench (hex key).
2. Remove the rear cover. Note: Be careful not to get the anti-seize
compound on hands and clothes.
3. Carefully remove the battery pack plug from the control board
connector. The battery pack plugs into the left connector on the
control board when the pistol grip handle is pointing downward.
4. Remove the battery pack.
5. Insert the battery pack replacement into the battery pack holder.
Insure the battery pack is fully seated in the holder.
6. Plug the battery pack into the open connector on the left side of
the control board J1.
7. Securely attach the rear cover by tightening ve to six turns (mini-
mum). Re-tighten the two set screws.
8. Charge the battery pack per the rst paragraph within the opera-
ting instructions of this manual.
Optional equipment
Part No. Description
22663 Charger with adapter plug
100-240 VAC universal input
Including wall outlet plugs for EU, UK , US and AUS
70718 NiCad Battery Pack
Picture shows Omniguard model S40 test source. Model 545 test source has the same dimension as model 540.

Firey AB
Phone: [phone]
E-mail: omniguardsales@rey.se
www.omniguardbyrey.se
Address
Textilgatan 31
120 30 Stockholm
Sweden
Publication No. 23462