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Siemens 7MC3040-... - Simulated Current Signal for Functional Testing; Internal Signal Processing; Configuration and Setup; Signal Conditioning

Siemens 7MC3040-...
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Operating manual PA
18
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
Do1
Emissivity
Transmi
tance
Correction for
extraneous radiation
User-defined
Table
Averaging interval
Mode
Filtering
time
Filter
Source
Scale
Cycle time
PreMax

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