Emerson Process Management 760004-A - Manual (Page 37)

Instruction Manual
760004-A
February 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-7
Model NGA 2000 HFID
Figure 3-1. Typical Curves of Module Response vs. Pressure Setting on Fuel Pressure Regulator
Figure 3-2. Typical Curves of Module Response vs. Pressure Setting on Air Pressure Regulator
0
0.2
0.4
0.6
0.8
1.0
RESPONSE
(100 ppm CH 4 fullscale)
SAMPLE: 100 ppm CH 4 in N 2
at 3.5 psig (241 hPa)
0
5
344
10
688
15
1032
20
1376
25
1726
30
2064
psig
hPa
FUEL PRESSURE
AIR: 30 psig (2064 hPa)
AIR: 20 psig (1376 hPa)
AIR: 10 psig (688 hPa)
0
0.2
0.4
0.6
0.8
1.0
RESPONSE
(100 ppm CH 4 fullscale)
SAMPLE: 100 ppm CH 4 in N 2
at 3.5 psig (241 hPa)
0
5
344
10
688
15
1032
20
1376
25
1726
30
2064
psig
hPa
AIR PRESSURE
FUEL: 30 psig (2064 hPa) H 2
FUEL: 25 psig (1726 hPa) H 2
FUEL: 20 psig (1376 hPa) H 2