Emerson B-106-300NH instruction manual World Class

Instruction Manual

IB-106-300NH Rev. 4.2 July 2002

World Class 3000

PROBE (END VIEW)

CALIBRATE		REFERENCE AIR
IN-PLACE
	CHECK	CONNECTION
FITTING

	VALVE
	2 SCFH
5 SCFH
FLOW METER	REFERENCE
	AIR
	SET
LEAK TIGHT	INSTR.
VALVES	AIR
REG	IN
0.4%	8.0%
O2	O2

NOTE: PROBE CALIBRATION GAS FITTING

HAS A SEAL CAP WHICH MUST

BE IN PLACE AT ALL TIMES

EXCEPT DURING CALIBRATION.

Figure 4-1. Typical Calibration Setup

NOTE

Only set the calibration gas flowmeter upon initial installation and after changing the diffusion element. A slightly lower calibration gas flow rate may indicate a plugged diffusion element.

2Set the calibration gas pres- sure regulators and the flow meter for a flow of 5 SCFH at 20 psi (138 kPa) for both gases. The reference air should be flowing as in normal operation.

3Refer to paragraph 4-2d of this section for Manual (Semi- automatic) Calibration setup and procedure using the IFT.

4Calibration gases will be switched on and off using the shutoff valves.

Test Method "B" Rosemount Oxygen Calibration 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% O2. 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.

NOTE

Ambient air is not recommended for use as high calibration gas. An 8% O2 balance in nitrogen is recommended for high calibration gas.

1Portable Rosemount Oxygen Calibration Gas Kits (Figure 4-2),Rosemount P/N 6296A27G01, containing 8% and 0.4% gases in a portable carrying case with regulator, built-in valve, hose and con- necting adapter to the calibra- tion gas connection.

4-4 Calibration Rosemount Analytical Inc. A Division of Emerson Process Management