Factory Setting - Grundfos Conex DIS-G Instrucciones De Instalación Y Funcionamiento

11.4.7 Adjusting the zero point of the sensors
Warning
If you apply this function incorrectly,
measurement faults may occur, or the
measurements may not be correct!
The sensor may have a deviation from its zero point,
i.e. it indicates a concentration although no gas is
present in the air. To correct this, the zero point of
the sensor can be adjusted.
A zero deviation of up to 0.5 ppm can be corrected.
In case of higher deviations, the sensor is defective
and must be replaced.
To carry out a zero adjustment:
1. Position the sensor in an absolutely gas-free
environment.
2. Proceed as follows.
Warning
Never carry out the zero adjustment in the
room which is to be monitored by the
sensor!
A gas concentration which may be present
in this environment would otherwise be
Caution
subtracted as an offset from the measured
value in the future!
0-point
adjustment OFF
3. Press the [Up] button.
0-point
adjustment ON
4. Press [OK].
– The actual stored value of the zero point
adjustment is displayed.
0-point M1
stored x
5. Press [OK].
0-point M1
adjustment OFF
6. Press the [Up] button.
0-point M1
adjustment ON
7. Press [OK].
– The new value of the zero point adjustment is
displayed.
0-point M1
stored y
8. Press [OK].
0-point M1
adjustment OFF
9. Press [OK].
– If the device is set to "2 sensors", the same
procedure follows for sensor 2.
0-point M2
stored x
10. Press [OK].
0-point M2
adjustment OFF
11. Press the [Up] button.
0-point M2
adjustment ON
12. Press [OK].
– The new value of the zero point adjustment is
displayed.
0-point M2
stored y
13. Press [OK].
0-point M2
adjustment OFF
14. Press [Esc] to change to the "Parameter" menu.

11.4.8 Factory setting

Factory setting
OFF
Only use this function if you are aware of
Caution the consequences. All device settings are
lost and must be re-entered!
See section 13.1 Resetting the device to factory
settings.
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