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10.2.6 Performing a manual zero calibration
Description
Before starting zero calibration, the operator shall supply zero gas to the detector and check that the
display is stabilized.
Operation
(example)
Key operation
(1)
(2)
(3)
(4)
(5)
(6)
How to cancel
Press the
key to cancel the operation.
After the cancellation, be sure to close the valves of zero gas.
Performing zero calibration on the screen
Display the screen on the right in accordance with the key
operation summary and press the
calibration screen appears.
Press the
key to perform manual zero calibration.
If supplying calibration gas manually (without the auto-
calibration function)
The operator shall open the zero gas valve manually and adjust
the flow rate to 1.5 ± 0.5 L/min.
If your detector has the auto-calibration function, you can
activate the external solenoid valve using the contact output
signal at the terminal block.
Oxygen concentration value and cell electromotive force are
displayed.
Wait until the oxygen concentration is stabilized.
Press the
key to determine the zero calibration factor.
During the process, the oxygen concentration value and cell
electromotive force are highlighted.
After the calibration is completed, the display returns to the
screen on the right.
The operator shall close the zero gas valve manually.
Description
key , the manual zero
- 58 -
Displayed message
(LCD)
CALIBRATION MENU
MANUAL ZERO CAL.
MANUAL ZERO CAL.
START
MANUAL ZERO CAL.
2.01 % 053.9 mV
MANUAL ZERO CAL.
2.01
%
053.9
mV
CALIBRATION MENU
MANUAL ZERO CAL.
INZ-TN1ZKME-E
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