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Calibration of measuring ranges
B
B
Zero gas is applied after pressing 5 and ENTER
until the displayed measured value is imported
as the new zero by pressing ENTER again. The
LED “not ready” lights up during the adjustment.
The zero of all measuring ranges is calibrated.
The calibration procedure can be aborted by
pressing the CL key.
*
5 Calibrate zero
5
Display
The setpoint is displayed which was used for the
last calibration. The measuring range in which
the setpoint is present is output to the right of
the display.
In the case of four calibration gas connections,
note that calibration gas 1 is assigned to range
1, calibration gas 2 to range 2 etc.
6 Display sensitivity setpoint
Measuring range No.
CL
6
Display
Identifier:
1 = calibration gas 1 for range 1 (to 4)
2 = calibration gas 2 for range 2
3 = calibration gas 3 for range 3
4 = calibration gas 4 for range 4
The setpoint must be reset when the calibration
gas is changed.
In the case of a total calibration (function 17), all
four ranges are calibrated using a calibration
gas.
If there is more than one calibration gas connec-
tion present, that gas will be used as calibration
gas of which the setpoint had last been entered.
When working with a measurement-point swit-
chover function, it is possible to measure diffe-
rent gases without an error as a result of different
response factors. This is on the condition that
each range is calibrated with the gas to be mea-
sured.
The identifiers 2, 3 and 4 can only be selected if
four calibration gas connections are present.
*
7 Adjust sensitivity setpoint
Setpoint
Identifier
7
CL
n
The sequence is analogous to function 5.
Total calibration:
A calibration gas is used to calibrate measuring
range 1. The other measuring ranges are also
calibrated.
If there is more than one calibration gas connec-
tion present, that gas will be used as calibration
gas of which the setpoint had last been entered.
Individual calibration:
In the case of four calibration gas connections,
calibration gas 1 is used for range 1, calibration
gas 2 for range 2 etc. in the case of one calibra-
tion gas connection, the set range is calibrated.
This procedure can be repeated for the various
measuring ranges.
The LED “not ready” lights up during the adjust-
ment. The original measuring range is selected
following the adjustment.
The calibration procedure can be aborted by
pressing the CL key.
*
8 Calibrate sensitivity to setpoint
8
Total calibration
Display
n
Identifiers: same as function 7
CL
8
Display
Individual calibration
A-15
Содержание 7MB1420
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