ABB PGC2000 User Manual

2-12 2000-OSM, F1
Checking Analytical Flow Adjust
1. Set Valve One to OFF; Valve Two remains ON (see Figure 2-7).
COLUMN
PRESSURE
ADJ
AIR IN AIR OUT
AIR OUT AIR IN
ANALYTICAL
FLOW ADJ
BACKFLUSH
VENT
SAMPLE
IN
SAMPLE
VENT
COLUMN
2
SAMPLE LOOP
COLUMN 1
SELECTOR
FLOW ADJ
SELECTOR
VENT
CELL
VENT
DETECTOR
CARRIER
IN
COLUMN
3
1
1
2
2
3
3
4
4
55
6
6
7
7
8
8
9
9
10 10
VALVE "OFF" VALVE "ON"
PI
Figure 2-7. MATCHING FLOW THROUGH ANALYTICAL FLOW ADJUST VALVE
2. To compensate for the pressure drop through Column 1, adjust the ANALYTICAL FLOW
ADJUST needle valve (accessed from the right side of the Oven Compartment) until the flow rate
at the cell vent of the detector cell is the same as the total column flow.
3. If the analyzer has several valves, first set the lowest-numbered valve ON and check the flow
rate. Then set the other valves on one at a time, checking the flow rate and adjusting the
corresponding restrictor (if necessary) after each valve is turned on.

ABB PGC2000 Specifications

General

Brand	ABB
Model	PGC2000
Category	Laboratory Equipment
Language	English