EARTH CONTROL MEASURING
0
1
4
8
3
6
7
1
2
0
1
9
10
JP3
230
120
100
0
0
24
Circuit card
FilterMax DX
Control Box
GND1
Earth control measuring must only be done by a
person with necessary knowledge of explosion
proofed installations.
IMPORTANT!
All metal parts of the filter unit must be earthed
reciprocally and connected to extern earth on
two of each other independent points. To secure
this, the following procedure must be followed.
The control measuring
Use an ohm-meter which at all measurings must indicate less than
10 ohm. Make sure that there is a metallic contact between the
actual component and the ohm-meter measuring tool.
NB! The duct system must not be connected.
1.
A. Disconnect the net earth from GND 1.
B. Measure between all components according to the list
above and GND 1.
C. Measure and check if contact between incoming duct
system and the free coupled incoming net earth.
2.
Connect incoming duct system (make sure that there is an
earth connection between the duct system and FilterMax DX).
A. Measure and check if contact between GND1 and extern net earth.
B. Reconnect net earth to GND1.
Connect outgoing duct system (make sure that there is an
earth connection between the duct system and FilterMax DX)
3.
Disconnect at earth
control measuring
When the FilterMax DX has been installed and at maintenance
work the earthing shall be measured. The measuring is done
between GND1 (in the Control Box, see picute below) and the
following components on FilterMax DX:
1. Inlet
2. Cleaning access point (on the inlet)
3. Dust collector
4. Adapter for dust collector
5. Filter cartridge
6. Filter module
7. Door
8. Relief panel
9. Dust feeder
10. Adapter for dust feeder
13
Summary of Contents for FilterMax DX 3000
Page 36: ...36 INSTALLATION AND SERVICE PROTOCOL 4 Point no Date Note ...
Page 37: ......
