Siemens 7MC3040-..., Руководство по эксплуатации, Страница: 26 / 116

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Operating manual PA
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6.9 Simulated current signal for functional testing
After initial installation, you should perform a function test to verify that
temperature data is correctly transmitted to the controller. To do so, use
the push-buttons on the pyrometer rear panel to simulate a temperature
reading, which is applied as an output current signal scaled to the se-
lected current range. The appropriate parameter can be accessed via
configuration layer
C100
.
If the pyrometer is set up correctly, the downstream controller should in-
dicate the values you have entered (only within the scaled range). If
there is a discrepancy, please check the current range scale or the cable
connection.
When you have completed the function test, exit by pressing "
ESC
" and
return to normal operating mode.
6.10 Internal signal processing
7 Configuration and Setup
7.1 Signal Conditioning
Emissivity and Transmittance
Besides the emissivity correction (mentioned in Chapter 5.5), a pyrome-
ter must be adjusted for the transmission properties of any supplemen-
tary lens and/or protective window screwed onto the pyrometer. Set the
pyrometer for the specific transmission factor (a percentage value) which
is indicated either in the
products’ data sheet or on the lens itself. This is
parameter
TAU.1
and can be accessed at configuration layer
C001
. If you are not using any auxiliary lens or protective window, set the pa-
rameter to 100.0.
Sensor
Calculate temp.
of target object
Segmented
linearisation Fil-
ter peak value
Tempera-
ture reading
/ Display
Ao1
Ao2
Do2
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