Atest Gaz Control V, User Manual

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Not used screw terminals must be tightly screwed.
Incorrect routing of cables may result in impairment of the equipment immunity to
electromagnetic interferences.
Figure 7: Example connection of cables to the device
7.2.1 Valve connection Ω
Designers of the wiring for connection of the valve controller to the shutoff valve must pay particular
attention to appropriate selection of cables so that the maximum permissible resistance allowed for
connection line is not exceeded: 0.2

for valves with power consumption less or equal 72 W or 0.5 for
valves with power consumption less or equal 36 W.
Please keep in mind that the total length of conductors is twice more than the cable length. The table below
explains how to select cross-section of cable cores and length of cables for valves of various types.
Cross-section of cable
cores [mm 2 ]
Cross-section of a cable
(parallel connection of
cores) [mm 2 ]
Maximum length of the cable
for valves with power ≤ 72 W
[m]
Maximum length of the cable
for valves with power ≤36 W
[m]
1.5 2x1.0 not recommended 20
2.5 2x1.5 10 30
4 2x2.5 20 50
6 2x4 30 -
Table 7: Selection of cables for connection between the Control V unit and the valve
7.3 Start up
After making sure that all connections are correct it is possible to power up the device.
Upon power up all indicators of the user interface panel should be on for about 1 second. Then the device
switches to the mode of regular operation, which is indicated as explained in Section 5.
To check whether installation of the entire system is correct it is recommended to run a comprehensive test
of the system by manual tripping of a gas alarm for the time not less than 30 seconds on any of gas
detectors incorporated into the system (the procedure of alarm tripping is described in manuals for each
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User Manual: POD-067-ENG R01
Incorrect cable routing Correct cable routing