Electrical Device Test To Verify Correct Installation - Honeywell enCore Series Manual

5
5.6.7 Electrical device test to verify correct
installation
After completion of the electrical work, you should conduct a test to eliminate the
possibility of errors, e.g. insulation faults in the supply voltage and communication.
PROHIBITION INTERDICTION
to conduct the tests in a potentially explosive atmosphere.
l
de réaliser les essais dans une atmosphère potentiellement ex-
plosive.
to conduct the tests without the permission of the system operator
l
d'effectuer les essais sans l'autorisation de l'exploitant du système.
The use of a multimeter is required to conduct the test. You should check the
following points:
1. 5.5.1 Opening GasLab Q2
➪
of the device. There must be no loose wires. All wires are connected as shown in
the circuit diagram. Spare wires have been dealt with correctly and routed safely.
2. The supply voltage is 24 V DC. ± 15% is available after switching on the ter-
minals on the Terminal Board.
3. The power supply capacity is sufficient for the maximum device requirement
(see type plate).If necessary, connect a load resistor in parallel to achieve this
value.
4. Cause a short- circuit and the supply voltage must be switched off within
120 seconds.
5. Check all switches and fuses outside the device. Is everything accessible and
can everything be switched off and on?
6. Conduct resistance measurements to ensure that all the electrical connections
have low resistance. Check the earthing as well.
7. Conduct resistance measurements to ensure that all the cables are adequately
isolated from each other and to earth.
If you find any discrepancies or errors during the check, eliminate them and repeat
the corresponding points of the installation procedure until all points are error-free
and OK. This completes the installation work. Then close the device properly.
5.5.2 Closing the housing of Gaslab Q2
➪
GasLab Q2
GasLab Q2 after delivery and at the place of use
(p. 70) Conduct a visual inspection of the interior
(p. 72)
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