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Instruction Manual

106-300NFX Rev. 4.2

January 2002

3-12 Setup and Operation Rosemount Analytical Inc. A Division of Emerson Process Management

World Class 3000

NOTE

Only set the test gas flowmeter upon

initial installation and after changing

the diffusion element. A slightly lower

test gas flow rate may indicate a

plugged diffusion element.

2 Set the test gas pressure

regulators and the flow meter

for a flow of 5 scfh at (20 psig)

138 kPa for both gases. The

reference gas should be

flowing as in normal opera-

tion.

3 Refer to paragraph 3-10d of

this section for Manual (Semi-

automatic) Calibration setup

and procedure using the IFT.

4 Test gases will be switched

on and off using the shutoff

valves.

Test Method "B" Rosemount Oxygen

Test Gas and Service Kit.

(a) Required Equipment

Do not use 100% nitrogen as a zero

gas. It is suggested that gas for the

zero be between 0.4% and 2.0% O

. Do

not use gases with hydrocarbon con-

centrations of more than 40 parts per

million. Failure to use proper gases

will result in erroneous readings.

1 Portable Rosemount Oxygen

Test Gas Kits (Figure 3-3),

Rosemount Part Number

6296A27G01, containing 8%

and 0.4% gases in a port-

able carrying case with regu-

lator, built-in valve, hose and

hose connecting adapter to

the calibration gas connec-

tion.

2 Extra gas bottles are available

at:

Rosemount Analytical Inc.

Box 901

Orrville, Ohio 44667

U.S.A.

Rosemount Limited

Burymead Road

Hitchin, Herts. U.K.

Rosemount Italy

VIA Guido Cavalcanti 8

20127 Milan, Italy

Rosemount Spain

Saturnino Calleja 6

28002 Madrid, Spain

Rosemount France

165 Boulevard de Vallmy

92706, Colombes, France

Rosemount Part Number

3530B07G01 for probe 0.4%

oxygen in nitrogen in dispos-

able bottle.

TEST GAS

KIT #1

(P/N 6296A27G1)

35870004

Figure 3-3. Portable Rosemount

Oxygen Test Gas Kit

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