Two-Point Calibration - ABB 4600 Series Operating Instructions Manual

7.2 Two-point Calibration

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OXYGEN CAL. SEQ,
0. 0
Cell Constant mV
100. 0
Span % of Theory
0000 . 0
Cal. User Code
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One Point Cal.
Two Point Cal.
Preset Cal.
20. 9 5
Connect to Air
20. 9 5
Calibrating Air
1. 0 0
Enter Span Gas
1. 0 0
Connect Span Gas
1. 0 0
Calibrating Span
Oxygen Calibration Sequence
Cell Zero mV
The upper display shows the millivolt offset of the oxygen probe from the last
successful calibration.
Span % of Theory
A value between 90 and 110% should be displayed. The display indicates the
oxygen probe output slope using parameters derived at the last successful
two-point calibration or the preset values.
Calibration User Code
[00000 to 19999]
If an incorrect value is entered, access to the calibration sequence is inhibited
and the display returns to the beginning of the
Two Point Calibration
Select the two-point calibration sequence.
Connect to Air
Connect the air supply to the probe (refer to the probe's Operating Instructions,
IM/ZGP2 ). The upper display indicates the test gas value in % oxygen.
Calibrating Air
The upper display indicates measured % oxygen. The display advances
automatically to the next frame when a stable reading is detected. To abort
calibration, press either the
Enter Span Gas
[between 0.10 and 10.00% O
Set the oxygen content of the gas used to calibrate the span.
Connect Span Gas
Connect the span gas to the probe (refer to the probe's Operating Instructions,
IM/ZGP2 ). The upper display indicates the test gas value in % oxygen.
Calibrating Span
The upper display indicates measured % oxygen. The display advances
automatically to the next frame when a stable reading is detected. To abort
calibration, press either the
Continued on next page.
7 PROGRAMMING...
Oxygen Calibration Sequence
or switch to advance to the next frame.
]
2
or switch to advance to the next frame.
.
15