MRBP.425241.001-01 UM version 1.1 01.05.2022 FD 330-4-
1 «Vega»
21
9.1 Functionality check
After the equipment mounting and wiring it is necessary to perform FD 330-4-1
«VEGA» functionality check. In addition, this check should be carried out regularly at
intervals of once every 6 months during maintenance.
9.1.1 Manual mode
To check the detector’s functionality by the method of illumination, a special test
radiation source is used.
The test radiation source is designed to check the operability of fire detectors without
dismounting the latter from their workplaces. The radiation of the test source has
characteristics that are as close as possible to the characteristics of electromagnetic
radiation that accompanies the combustion of petroleum products and their vapors, natural
gas and other hydrocarbons.
The test source generates a directional complex modulated radiation with an intensity
sufficient for the appearance of the "Fire" signal at the FD 330-4-
1 «VEGA» output, at a
distance corresponding to a specific version of the detector.
To check the dete
ctor’s functionality by the method of illumination by a test
radiation source
it is necessary to do the following
:
1. Direct the test source to the flame detector, located at a distance of up to 2 m and
press the switch button;
2. Correct the radiation direction so that the FD 330-4-
1 «VEGA» receivers are
illuminated by the radiation source. For FD 330-4-
1 «VEGA» actuation it is necessary to
endure the test source radiation on its photo emitters for 4..5 seconds. FD 330-4-1
«VEGA» actuation is indicated by LED indicators constant red glowing for 5..6 seconds.
3. After FD 330-4-
1 «VEGA» actuation turn off the source.
If it is necessary that the output signal does not contain an alarm signal, then a
magnetic bracelet must be put on the FD 330-4-
1 «VEGA» (Figure 12). In this case FD
330-4-
1 «VEGA» actuation is controlled only visually by means of LED indicators, which
should glow constantly at
«FIRE» signal. If the detector does not pass the test
successfully, the procedures described in the
«Troubleshooting» section must be followed.
lateral side
where, 1
–Magnetic key
2 - Recess in the housing for correct installation of the clamp
Switching from ModBus protocol to HART protocol and from HART protocol to ModBus
protocol possible via magnetic key.
