Edwards ELD500 Series, Инструкция по эксплуатации

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D13510840D - SL Extender interface
Page 33
The built-in gas pump supplies the gas through the sample line ( Figure 32 item 9) to the
separator. The inlet port of the pump is equipped with the gas inlet socket ( Figure 32 item 6),
to which the sample line is connected via its corresponding gas inlet plug ( Figure 32 item 8).
The other end of the sample line is provided with a handle ( Figure 32 item 10), containing the
fine tip ( Figure 32 item 12) of the sample probe. This tip is provided with a small dust filter.
The small quantity of gas (approximately 2 mbar ls
-1
) taken up by the sample tip is supplied
to the separator.
From this quantity of gas only approximately 2 x 10
-3
mbar ls
-1
is supplied to the leak detector.
The remaining part is released to the ambient air.
A pushbutton marked "TEST" (
Figure 32 item 5) is placed on the side of the ELD500 SL
extender interface to briefly switch off the sample pump.
As a result of this, the pressure in front of the separator increases from 200 mbar to
atmospheric pressure, resulting in a corresponding increase in the signal, thereby indicating
correct functioning.
Figure 32 ELD500 SL extender interface
1. Blind plug 7. Connection flange
2. Mains socket 8. Plug of the sampling probe (gas inlet plug)
3. Fuse holder 9. Sample line
4. Mains switch 10. Handle
5. "TEST" pushbutton 11. Sample probe with filter insert
6. Socket for gas inlet plug