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6 Using the product
The value can be input directly
calculated when entering the barometric pressure
pressure) and Altitude.
6.1.10.
| Instrument settings | Switching the testo 330i off
It is possible to switch the testo 330i off via the mobile terminal
device.
> Switch off the measuring instrument: tap OK.
-
The following may happen: the pump starts and the sensors are
rinsed until the switch-off thresholds (O
measurement parameters < 50 ppm) are reached. The
maximum rinsing period is 3 minutes.
- The measuring instrument switches off.
6.2.
Measuring
6.2.1.
Preparing for measurement
6.2.1.1.
Checking the condensate container fill level
Regularly check the fill level of the condensate container and empty
it in good time; see Draining the condensate container, page 28.
6.2.1.2.
Checking the particle filter
Regularly check the particle filter of the flue gas probe for
contamination and replace in good time; see Checking/replacing
the particle filter, page 35.
6.2.1.3.
Zeroing phases
Measuring the combustion air temperature (AT)
If no combustion air temperature probe is connected, the
temperature measured by the thermocouple of the flue gas probe
during the zeroing phase is used as the combustion air
temperature. All dependent parameters are calculated using this
value. This method of measuring combustion air temperature is
sufficient for systems dependent on ambient air. However, ensure
that the flue gas probe is near the intake duct of the burner during
the zeroing phase!
If a combustion air temperature probe is connected, the combustion
air temperature is measured continuously via this probe.
18
Measuring values that have not been saved are lost when
the measuring instrument is switched off.
(Abs.
pressure), or is automatically
> 20%, other
2
(Barom.
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