TESTO 300 LL NEXT LEVEL - Draught

9 Performing the measurement
59
Connected cable probe
(maximum 1 possible)
Number of connected Smart
Probes
(testo 115i and/or testo
915i)
Display and use of the
temperature probe in testo
300 NEXT LEVEL
Yes 4
Cable probes: AT probe for
the AT measurement
t115i/t915i: 2 additional
temperature channels dT
9.5.2 Draught
For this type of measurement, the Mean value calculation option is
also available. See Mean value calculation section.

A flue gas probe must be connected.
1
Call up function: | Draught
The minus connection for differential pressure measurements must be
clear (ambient pressure, not closed).
2
Start measurement: tap .

Zeroing takes place. Please follow the instructions.

Reading is displayed.
3
End measurement: tap .