RADWAG PUE HX5.EX, Руководство пользователя, Страница: 30 / 52

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10.4. Connecting Power Supply
The PUE HX5.EX-* indicator can be connected to the mains only with
a certified intrinsically safe power supply, manufactured by RADWAG:
•
PM01.EX-1
power supply intended for operation in hazardous area:
- zone 1 and 2 where there is a risk of explosion due to mixture of air
with vapour, mist or gas, classified as explosion group IIC, IIB and IIA
and as temperature class T1, T2, T3, T4.
- zone 21 and 22 where there is a risk of explosion due to mixture of air
with dust, flammable fibres and volatile fuels, classified as explosion
group IIIC, IIIB and IIIA.
•
PM01.EX-2
power supply intended for operation in safe area, equipped
with intrinsically safe circuits which may be placed in:
- zone 1 and 2 where there is a risk of explosion due to mixture of air
with vapour, mist or gas, classified as explosion group IIC, IIB and IIA
and as temperature class T1, T2, T3, T4.
- zone 21 and 22 where there is a risk of explosion due to mixture of air
with dust, flammable fibres and volatile fuels, classified as explosion
group IIIC, IIIB and IIIA.
Connection of the PUE HX5.EX-* indicator to power supply is carried out by the
manufacturer at the stage of production, the connection is of fixed type. If there
is a need to disconnect the power supply, e.g. in order to run the cable through
walls etc., it is allowed to disconnect the power cord from the power supply
only.
Disconnect the indicator from the power supply when there
is no risk of explosive atmosphere occurrence.
Prior 'indicator' - 'power supply' cable disconnection, it is
necessary to disconnect the power supply from the mains
first.
Disconnect the cable from the power supply EXCLUSIVELY.
Detailed information concerning connection and disconnection of the cable
from the power supply is to be found in an attached
"PM01.EX Intrinsically
Safe Power Supply User Manual"
.