TESTO 300 LL - CO;NO sensor protect; Alarm limits

8 Using the product
36
8.2.5.8
CO/NO sensor protect
Limit values can be set to protect the CO/NO sensors against overload. Sensor
protect is enabled if these are exceeded:
• Fresh air dilution if exceeded (only for instruments with the "Dilution" option)
• Shutdown if exceeded again
When dilution is enabled, the CO and CO undiluted values are
displayed in a blue font. A “*” is shown on the printout after the name of
both values to indicate dilution.
1
Call up function: | Device Settings | Sensor Protection

CO input screen: Set Sensor Setting is opened.
2
Enter the alarm limit value via the keypad.
3
Confirm input with .
The limit values must be set to 0 ppm to disable sensor protect.
8.2.5.9
O
2
Reference
The O2 reference value can be set.
1
Call up function: | Device settings | O2 Reference

O
2
Reference input screen is opened.
2
Enter the value via the keypad.
3
Confirm input with .
4
Tap [OK].
8.2.5.10
Alarm limits
Alarm limits can be set for the CO Ambient measurement type. An audible
alarm signal is triggered when the alarm limit is reached.
1
Call up function: | Device Settings | Alarm limits

Alarm limits input screen is opened.
2
Tap directly on the value in the relevant input field.
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