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Press [∇∆] keys simultaneously and hold them down
for 10 sec. > The display will flash once.
If you press both [∇∆] keys only briefly, you will
exit the layer (ESC function).
10.2 Diagnostics feature
The infrared temperature sensor features an integrated
diagnostics function which can be activated either using
the control keys or by a static signal (10 – 34 V)
on PIN 5.
Voltage must be applied for at least t > 400 ms. The di-
agnostics function simulates the detection of infrared ra-
diation. The display shows „
agnostics function, the static signal must be < 6 V for a
period longer than 0.3 s. If the diagnostics function is ac-
tivated using the control keys on the instrument, it will
remain in this mode for 10 s. The diagnostics function
checks the instrument's signal processing and tests the
switching outputs.
11 Operation Mode
After connecting the supply voltage the infrared tempera-
ture sensor will be automatically initialized and will per-
form a self-diagnosis. After approx. 0.5 s the sensor is
ready to operate and the instrument runs the signal pro-
cessing.
Operating manual PKS
". To deactivate the di-
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