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Gas path
switch
(testo
300 XL-I
only)
Position of
CO cell
SO
cell
2
Shorting bridge
Additional
measuring ell
Battery cover
(+)
(-)
Rechargeable/
battery
Changing O
O
cell
2
Remove the cover on the back of the analyser (battery cover).
Remove the tube connection and gas path switch from the used cell.
Take the measuring cell out of the analyser.
Insert the new cell and reconnect.
When changed, the O2 measuring cell needs an adaptation time
Upgrading/installing CO/SO
Tube
connection
CO/SO
2
measuring cell
board
Remove the additional board from the NO cell (see diagram).
Remove the tube connecton from the CO cell and insert the NO cell in
NO
the free space. Connect the NO cell to the CO cell.
Changing the rechargeable battery or battery
recommend that you save the data saved in the instrument on
Remove empty/defect rechargeable battery/battery from the battery
(+)
compartment and replace with new rechargeable battery or battery.
If the rechargeable battery is changed within 2 minutes the data in the
instrument is saved.
(-)
Observe the correct polarity of the rechargeable battery/battery.
, CO, NO and SO
2
of approx. 60 min. in testo 300-i. .
The analyser does not have to be switched on. Only then can
an accurate measurement be carried out.
Remove the shorting bridge when installing
Reinstall short-circuiting link when storing the CO/SO
Upgrading/installing an NO measuring cell
The additional board must be removed
when installing an NO cell.
Attach additional board if the NO cell is stored outside
Once the NO cell has been installed, then add the NO
parameter to the display.
Before changing rechargeable batteries or batteries, we
the hard disk of your PC.
When using original Testo rechargeable batteries ensure that
only batteries with the same serial number are used (see
55
Maintenance
measuring cells
2
Caution
measuring cell
2
Caution
a new measuring cell.
cell outside the instrument.
Caution
the instrument.
Caution
rating plate).
2
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