Coefficient D Adjustment C-3
Molecular
Sieve Dryer
(<1 ppm)
Super-activated
Molecular Sieve Dryer
(Optional)
Contaminant Trap
(Optional)
REFERENCE
SAMPLE
Sample
Shutoff
Valve
(Closed)
Field
Unit
Probe
Dry Reference
Bypass Valve (Open)
Dry Reference
Bypass Loop
For Coefficient D
Determination
Sample Switching Valves
and Bypass Flowmeters
(See Figure 9c, page 2-13)
Sample Tap Ball Valve
Not Shown
Pressure
Reducer
Main Sample Line
Shutoff Valve
Sample
Source
Vent to
Appropriate
Area
Indicates Diverted Reference Flow
for Coefficient D Determination
Indicates normal Sample and
Reference Flows
LEGEND:
Reference
Gas Source
Molecular
Sieve Dryer
(<1 ppm)
ontaminant
Trap
(Optional)
REFERENCE
SAMPLE
Field
Unit
Pressure
Reducer
Shutoff
Valve
Super-activated
Molecular Sieve Dryer
(Optional)
Pressure
Reducer
Main Sample Line
Shutoff Valve
Sample
Source
Probe
Sample Switching Valves
and Bypass Flowmeters
(See Figure 9c, page 2-13)
Dry Sample
Bypass Valves
(Three-Way)
Set as Required
Dry Sample
Bypass Loop
For Coefficient D
Determination
Sample Tap Ball Valve
Not Shown
Molecular
Sieve Dryer
(<1 ppm)
Vent to
Appropriate
Area
Indicates Diverted Sample Flow
for Coefficient D Determination
Indicates normal Sample and
Reference Flows
LEGEND:
Pressure
Indicator
Pressure
Indicator
Pressure
Indicator
FigureC1: Dry Reference Bypass Loop for Sample System Using Conditioned Sample as Reference
Figure C2: Dry Sample Bypass Loop for Sample System Using Separate Gas Source as Reference