Zeroing Gas Sensors; Mean Value Calculation - TESTO 300 LL NEXT LEVEL Instruction Manual

9 Performing the measurement

Zeroing Gas Sensors

9.6.2
Zeroing of the gas sensors can be started manually.
>
Zeroing Gas Sensors
|

The gas sensors are zeroed.
testo 300 NEXT LEVEL without probe zeroing option in the flue
gas:
The flue gas probe must be in fresh air during the zeroing phase (30
seconds)!
testo 300 NEXT LEVEL with probe zeroing option in the flue gas:
The flue gas probe may already be in the flue gas duct during the
zeroing phase (30 seconds).

Mean value calculation

9.6.3
The mean value calculation option is only available in the country
versions x, y, z...
The mean value calculation option can only be set for the following
measurement types:
Differential temperature
1 Select required measurement type.
2
Call up function:

The list for mean value calculation is opened.

The start button changes to
3
Determine the measuring rate (1 sec - 120 sec). The required value can
be entered directly in the field on the first two lines of the display.
4
Confirm with
5 Determine the measuring time (30 sec - 90 min). The required value
can be entered in the field.
6
Confirm with
7
Start mean value calculation with
82
Flue gas, Draught,
CO
and
| Options | Mean value calculation
.
.
.
Differential
Ambient.
.
pressure,
| On