Co/No Sensor Protect; O 2 Reference; Alarm Limits - TESTO 300 Pro Smoke Edition Manual

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8 Using the product
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:

CO input screen: Set Sensor Setting
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.
O Reference
8.2.5.9
2
The O2 reference value can be set.
1
Call up function:

O Reference
input screen is opened.
2
2 Enter the value via the keypad.
3
Confirm input with
4 Tap [OK].

Alarm limits

8.2.5.10
Alarm limits can be set for the
alarm signal is triggered when the alarm limit is reached.
1
Call up function:

Alarm limits input screen is opened.
2 Tap directly on the value in the relevant input field.
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| Device Settings | Sensor Protection
is opened.
.
| Device settings | O2 Reference
.
CO Ambient measurement type. An audible
| Device Settings | Alarm limits
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