Menu T For Measuring Stuck Gas Temperatures And Draughts - Wohler DC 100PRO Bedienungsanleitung

6. Menu TS
5.1 Selection of the syringe volume
The differential pressure ∆p is measured. In order to obtain a sufficiently ac-
curate measurement result, the measured differential pressure ∆p should be
at least 20 Pa. This results in a syringe volume V
of the line volume. In this case, the error to be expected during the volume
measurement is equal to the measurement inaccuracy of the DC 100
3 % of the measured value. A higher pressure leads to longer stabilization
times during the temperature compensation and to a larger impact of possi-
ble leaks.
The following table indicates the approximate values for the selection of the
syringe volume:
Syringe volume
20 ml
50 ml
100 ml
163 ml (1 strike with soot pump)
489 ml (3 strikes with soot pump)
6. Menu TS for measuring stuck gas temperatures and draughts
In conjunction with the (optional) QA sensor E98 order no. 9924 the
DC PRO can determine and log both the draught in the exhaust gas and
PRO
its temperature. The automatically alternating display of measured results
should be selected under the Measuring Mode menu, i.e. the draught and the
temperature are displayed alternately (see Section 3.5).
There are two ways of initiating a measurement of exhaust gas temperature
with the QA sensor E 98.
1. The DC 100
PRO
self-test. However, the sensor must be connected before the DC 100
switched on (see Figure 5.2).
2. The second possibility of activating the QA sensor E98 for registering
exhaust gas temperatures is provided by the menu item TA.
When this mode is activated (the cursor flashes constantly at the position
TS), the device must not be switched to an external ambient or wall tem-
perature sensor: they would otherwise display garbage. Again selecting the
menu item TS switches OFF the flashing cursor. The TS-mode has also to be
activated for measurements with the Wöhler S-tube probe (order no. 3941).
e-Mail: mgkg@woehler.com
automatically detects the inserted QA sensor during the
which is at least 1/5000
Sample
Max. line volume (DC 100
100 l
250 l
500 l
800 l
2400 l
http://www.woehler.com
Wöhler DC 100
PRO
, i.e.:
PRO
)
PRO
is
PRO
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