Model NGA2000 HFID

Instruction Manual

748297-E June 2003

RESPONSE

(100 ppm CH4 fullscale)

1.0

0.8

0.6

0.4

0.2

0

AIR: 30 psig (2064 hPa)

AIR: 20 psig (1376 hPa)

AIR: 10 psig (688 hPa)

SAMPLE: 100 ppm CH4 in N2 at 3.5 psig (241 hPa)

0

5

 

10

 

15

 

20

 

25

 

30

 

344

688

1032

1376

1726

2064

psig FUEL PRESSURE hPa

Figure 3-1. Typical Curves of Module Response vs. Pressure Setting on Fuel Pressure Regulator

1.0

0.8

0.6

RESPONSE

(100 ppm CH4 fullscale)

0.4

0.2

0

FUEL: 30 psig (2064 hPa) H2

FUEL: 25 psig (1726 hPa) H2

FUEL: 20 psig (1376 hPa) H2

SAMPLE: 100 ppm CH4 in N2 at 3.5 psig (241 hPa)

0

5

 

10

 

15

 

20

 

25

 

30

 

344

688

1032

1376

1726

2064

psig AIR PRESSURE hPa

Figure 3-2. Typical Curves of Module Response vs. Pressure Setting on Air Pressure Regulator

Rosemount Analytical Inc. A Division of Emerson Process Management

Startup and Operation 3-7