TESTO 300 LL NEXT LEVEL - Differential pressure

9 Performing the measurement
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9.5.7 Smoke number
The Smoke No. and Oil depos. parameters are only available for oil
fuels. The values calculated by a smoke tester can be entered.
Edit values
All values that can be modified have a dotted underlining.
1
Call up function: | Smoke No.
2
Tap required value.

Keypad appears.
3
Enter value.
4
Confirm entry: tap ✓.
5
Reset readings: tap .
9.5.8 Differential pressure
For this type of measurement, the Averaging option is also available.
See Averaging section.
The differential pressure measurement can also be performed using the
Smart Probe testo 510i (0560 1510).
Up to 4 testo 510i Smart Probes can be connected.
WARNING
Dangerous mixture of gases!
Danger of explosion!
- Make sure there are no leaks between the sampling point and the
measuring instrument.
- Do not smoke or use naked flames during the measurement.

The gas pressure kit (0554 1203) must be connected. Alternatively, the
Smart Probe testo 510i (0560 1510) can be used.