Checking Backflush Flow - ABB PGC2000 Operation And Service Manual

Checking Backflush Flow

1. Connect the flow-measuring device to the Backflush Vent and verify that Valves One and Two are
OFF (see Figure 2-8).
2. Adjust the Backflush Vent restrictor to the flow rate stated in the Data Package.
CARRIER
IN
COLUMN
PRESSURE
ADJ
PI
AIR IN
ANALYTICAL
FLOW ADJ
2000-OSM, F1
AIR OUT
VALVE "OFF"
SAMPLE
VENT
6
1
7
2
SAMPLE
IN
3
8
9
4
10
5
COLUMN 1
BACKFLUSH
SAMPLE
VENT
LOOP
Figure 2-8. CHECKING BACKFLUSH FLOW
AIR IN
SELECTOR
FLOW ADJ
COLUMN
2
COLUMN
3
AIR OUT
VALVE "OFF"
6
1
2 7
3 8
4
9
5 10
DETECTOR
SELECTOR
VENT
CELL
VENT
2-13