Using Modbus Or Hart; Sensitivity Check; Tl105 Test Lamp - MSA General Monitors FL500 UV/IR Operating Manual

4.2.2 Using Modbus or HART

To use the HART protocol, it is necessary to select the applicable current (1.25 mA or 3.5 mA).
The factory default setting is 3.5 - 20 mA. This setting can only be changed through HART or Modbus.
Settings for Modbus and HART can be changed through the DIP switch.
For information about changing device settings through Modbus, refer to the FL500 Modbus Commu-
nication Operating Manual (PN 10193214).
For information about changing device settings through HART, refer to the FL500 HART Communica-
tion Operating Manual (PN 10193215).
4.3

Sensitivity Check

Use the TL105 Test Lamp or the Alarm Test feature to make sure that each device operates correctly.
If the device does not operate correctly, refer to Section 7 "Troubleshooting" for instructions.

4.3.1 TL105 Test Lamp

The TL105 test lamp is a battery operated, rechargeable test source used to make sure that operation
of the device is correct. The test lamp has a high-energy broadband radiation source that emits suffi-
cient energy in both the UV and IR spectra to activate the UV and IR detectors. To simulate a fire, the
TL105 test lamp automatically flashes at the correct rate for different models. When fully charged, the
internal batteries operate continuously for 30 minutes. When the battery charge goes below the level
necessary to supply the correct intensity, an internal low-voltage circuit stops operation of the test
lamp until the batteries are recharged. For recharging instructions, refer to the TL105 Instruction
Manual (PN MANTL105).
Fig. 19 TL105 Test Lamp
(1) Make sure that the batteries are fully charged and the rotary switch is set at position 4
(FL4000 position).
(2) Stand 15 - 20 ft (5 - 6 m) away from the FL500 UV/IR.
Stand up to 30 ft (9 m) away from the FL500 H
(3) Point the TL105 test lamp directly at the front of the device.
(4) Shake the test lamp from side to side or up and down. Motion increases the simulation of flames
flickering and increases the response of the device to the test lamp.
If device operation is correct, after a few flashes of the test lamp, an Alarm Low condition occurs.
If the test lamp stays pointed at the device for the period of the time-delay setting, an Alarm High
condition occurs.
To conserve the battery charge, operate the test lamp only as long as necessary to do
a test of each device.
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FL500 UV/IR, FL500-H Flame Detector
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Operation
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