55
3.
At the Calibration Menu, select “Single Sensor Zero.” Press [Y/+] once to enter the zero calibration
sub-menu.
4.
Start the flow of dry air, if used.
5.
Press [Y/+] to start zero calibration.
6.
A countdown screen appears. You can abort the calibration at any time during the countdown by
pressing [N/-].
7.
If the calibration is not aborted, the display shows the sensor names and tells you whether the zero
calibration passed or failed, followed by the sensors’ zero calibration readings.
9.3.3.4
Single Sensor Span
Instead of performing a span calibration on multiple sensors simultaneously, you can select a single
sensor and perform a span calibration.
Note:
If a calibration icon (bottle with bottom portion filled in) is shown next to any of the sensors, it
means that the sensor is due for a full calibration.
To perform span calibration of an individual sensor, follow these steps:
1.
At the Calibration Menu, select “Single Sensor Span.”
2.
Select a sensor to calibrate from the list.
3.
Install the calibration adapter and connect it to a source of calibration gas.
4.
Verify that the displayed calibration value meets the concentration specified on the gas cylinder.
5.
Start the flow of calibration gas.
6.
Press [Y/+] to start calibrating or wait for calibration to start automatically.
Note:
Dotted line indicates automatic progression.
