F-Gas Detector Instructions
Keep the ZERO pressed for 3 seconds.
Now, the user must apply the correct sample gas for the ZERO-calibration using the
available calibration adapter (typically air or nitrogen. In case of doubt, please contact the
supplier). If a stable value is found within a time window (60 seconds) regarding the
concentration and this value is found in a plausible value range, the ZERO-LED will change
from flashing yellow to steady yellow.
Now, the user is able to set the desired concentration value of the output signal by using the
UP and DOWN keys. For this, the relevant set value can be monitored live at the analogue
output.
Pressing the UP or DOWN keys for longer will lead to an auto-repeat. This feature is helpful
for the adjustment for a larger range.
Exiting the ZERO-calibration can be carried out any time by pressing ZERO for 3 seconds.
Keep ZERO pressed for 3 seconds.
If the action was successful, the STATUS-LED will change from flashing yellow to flashing
green for 3 seconds, subsequently changing to lighting up yellow (one is still in level 1 of
maintenance mode and is still able to carry out system change
In the case of an error in connection with the ZERO-calibration, the STATUS-LED will
change from flashing yellow to flashing red for 3 seconds, subsequently changing to a
steady yellow (one is still in level 1 of maintenance mode). The changed calibration values
were not taken over. This process has to be repeated.
Caution
: The changes only become effective when the maintenance mode has been exited
as described in chapter 4.7. Without this process, for instance when severing the operating
voltage, all changes will be lost.
4.10.
SPAN-calibration
The SPAN-calibration is only possible from level 1 of maintenance mode (refer to diagram in
section 4.11); this is a self-contained process. Thus, even new data, which have been
gained from SPAN-calibration must be taken over or deleted explicitly when exiting the entire
maintenance mode (see Chapter 4.7).
The self-contained part of the SPAN-calibration can be regarded as a second level of
maintenance mode.
The SPAN-calibration level can be activated for 3 seconds by typing SPAN for 3 seconds. If
the entry was successful, the STATUS-LED will change from a steady yellow to flashing
yellow. In addition to this, the SPAN-LED will flash yellow.
Keep SPAN pressed for 3 seconds.
Now, the user must supply the correct sample gas for the SPAN-calibration with the help of
the calibration adapter, which is available as accessory. If a stable value is found within a
time window (60 seconds) regarding the concentration and this value is found in a plausible
value range, the SPAN-LED will change from flashing yellow to steady yellow within a time
window of 60 seconds. If the concentration found continues to be stable, the SPAN-LED will
change from flashing yellow to steady yellow.
