Emerson 3000 instruction manual World Class, Instruction Manual, e. Fully Automatic Calibration

Instruction Manual

IB-106-300NH Rev. 4.3

May 2005

	REFERENCE AIR
CALIBRATE
	CONNECTION
IN PLACE

CONNECTION	CHECK	CALIBRATION
	VALVE	GAS HOSE
		CONNECTS
		TO CHECK
		VALVE

World Class 3000

ENTER to start. Follow the data queues. Refer to Table 5-4, CALI- BRATE O2 Sub-menu.

e. Fully Automatic Calibration

1. Calibration Gases For Fully Automatic

Calibration. For fully automatic calibra-

PUSHBUTTON
REGULATOR	2
WITH CONTENTS
	O
GAGE - SET 5 SCFH	0.4%

NOTE: PROBE CALIBRATION GAS FITTING HAS A SEAL CAP WHICH MUST BE IN PLACE EXCEPT DURING CALIBRATION.

2 O8.0%

37840013

tion, an MPS 3000 Multiprobe Calibra-

tion Gas Sequencer is required as well

as the two types of calibration gas.

Do not use 100% nitrogen as a zero gas. It is suggested that gas for the

Figure 4-3. Typical Portable Calibration Setup

d.Manual (Semiautomatic) Calibration Procedure

The following procedure relates to an op- erator initiated calibration selected at the IFT by pressing the CAL key. The calibra- tion is manually performed by the operator upon data queues from the IFT. Any system without an MPS 3000 Multiprobe Calibration Gas Sequencer must follow these steps.

1.Press SETUP to display the SETUP menu. Select PROBE CALIBRATION sub-menu. Ensure that Auto Cal is dis- abled. Set the cursor on Auto Cal. Press ENTER. Set Auto Cal to NO if not already done.

2.Press the CAL key. Select PERFORM CALIBRATION sub-menu. "Press EN- TER to start Manual Calibration" will appear on the LCD display. Press

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.

Two tanks of precision calibration gas mixtures. Recommended calibration gases are nominally 0.4% and 8.0% oxygen in nitrogen set calibration gas pressure at 20 psi (138 kPa).

A typical automatic calibration system is shown in Figure 4-4.

4-6 Calibration Rosemount Analytical Inc. A Division of Emerson Process Management