Startup procedure – Det-Tronics X2200 UV Flame Detector with Pulse Output User Manual

Page 17

95-8552

5.3

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/IEC 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:

• Manual 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

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.

BULKHEAD

3/8 INCH (10 MM) GAP MINIMUM

A2126

Figure 13—EOL Resistor Installation