95-8547
9.2
16
EOL RESISTORS
To ensure that the insulating material of the wiring
terminal block will not be affected by the heat generated
by EOL resistors, observe the following guidelines when
installing the resistors.
1. Required EOL resistor power rating must be 5 watts
minimum.
NOTE
EOL resistors must be ceramic, wirewound
type, rated 5 watts minimum, with actual power
dissipation not to exceed 2.5 watts.
This applies to
ATEX/IECEx installations only
.
2. Resistor leads should be cut to a length of
approximately 1 1/2 inches (40 mm).
3. Bend the leads and install the EOL resistor as shown
in Figure 13.
4. Maintain a 3/8 inch (10 mm) minimum gap between
the resistor body and the terminal block or any other
neighboring parts.
NOTE
The EOL resistor can only be used within the
flameproof terminal compartment. Unused
apertures shall be closed with suitable blanking
elements.
STARTUP PROCEDURE
When installation of the equipment is complete, apply
power and allow 20 to 30 minutes for the detector’s
heated optics to reach equilibrium. Then perform one or
more of the following tests:
•
Man
oi
Test — Tests detector output and wiring,
without generating a fire alarm.
• Count Test Mode — Measures actual detector output
to controller (cps), without generating a fire alarm.
• Fire Alarm Test — For complete system test including
detector relays. Generates fire alarm output.
MANUAL
oi
TEST (Output to Controller)
1. Place the keylock switch in the TEST position.
2. Press the SELECT button to display the desired
zone on the ZONE indicator on the front panel of the
controller.
3. Press and hold the TEST button. The ZONE OUTPUT
LED for the tested zone flashes and the SYSTEM
STATUS display indicates a “6” (fire condition) if the
test is successful.
4. Release the TEST button. The ZONE OUTPUT LED
for the tested zone should remain on steadily.
5. Return to step 2 to test the next detector.
If the system responds differently than indicated above,
proceed with the count test for the problem zone to verify
detector and wiring operation.
COUNT TEST MODE (Output to Controller)
When in the Count Test mode, the frequency of the digital
pulses from the detector is displayed on the ZONE
and DETECTOR indicators on the controller faceplate.
The Count Test mode may be used to check the signal
(cps) from a test fire or false alarm source. This can be
useful during system set-up for sensitivity and time delay
settings. This test is performed in the following manner:
1. Place the keylock switch in the TEST position.
2. Simultaneously press and release the SELECT and
TEST buttons. The Status display will change from
a “1” to an “8” indicating that the controller is in the
Count Test mode of operation.
Figure 13—EOL Resistor Installation
3/8 INCH (10 MM) GAP MINIMUM
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B2126
BULKHEAD
