TESTO 350 Maritime V2, Инструкция по эксплуатации, Страница: 73 / 106

6 Using the product
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3. Selecting fuel: [ ] , [ ] → [OK] .
6.2.3.1. Flue Gas, Flue Gas + m/s, Flue Gas + Δ p, Program for all
meas. boxes, Flue Gas before + after catalyst
The flue gas menus ( Measurement Type ) are the central
measuring menus, which – in addition to the readings measured
with this function – contain the readings of all measurements
performed (if selected in the menu Measurement view ). All
readings can also be saved in or printed out from these menus.
The flue gas menus can always be selected, irrespective of the
plugged in sensors.
Measuring functions of the flue gas menu:
• The measurement type
Flue Gas can be used to perform a flue
gas measurement.
• The measurement type Program for all analyzer boxes can
be used for e.g. a bus system, in which several flue gas
analysers are interconnected. A measuring program can
thereby be defined and transferred to all meas. boxes.
• The measurement type
Flue Gas after cat
enables
synchronous measuring of flue gas concentration before and
after the catalyst. For this flue gas menu two measuring boxes
are required, which are linked via the Test Data bus. The
readings of both meas. boxes are displayed parallel in the
display of the Control Unit to provide a quick overview over the
condition of the catalyst.
• With measurement type Flue Gas + m/s a flue gas
measurement can be performed in parallel to a flow
measurement (+ volume / mass flow calculation) via a Pitot tube
(the connecting cable for the thermocouple of the straight Pitot
tube must thereby not be connected to the sensor socket of the
instrument).
• The measurement type
Flue Gas + Δ P
can be used to perform
a flue gas measurement with parallel differential pressure
measurement.
After measurements with high concentrations and after
longer measurements the instrument should be rinsed with
fresh air, so that the sensors can be regenerated again.
Flow measurement: Before the measurement make the
location settings (Pitot tube factor and correction factor),
see Folders / Locations, page 44.
Do not measure for longer than 5min, as the drift of the
pressure sensor could have the effect that the readings are
outside the tolerance limits.