Eliminating Errors - MICRO-EPSILON NLS3181 Betriebsanleitung

Eliminating Errors

Step 2: Gain adjustment
+5 V
0 V
-5 V
Fig. 16 Output signal on the controller, optimum gain adjustment
i
6.
No change in output signal
Output signal is in the range of -5 V up to 0 V or in the range of 0 V up to +5 V.
NLS3181
The measuring system operates. Connect the analog output with an oscilloscope.
Set the output voltage with potentiometer "gain" to the value of the desired voltage for full range (±5 V),
see Fig. 16.
The highest sensitivity over the whole range is achieved at a calibration to 5 V output voltage. This gives
the best signal/noise ratio.
Eliminating Errors
Check supply voltage.
Check allocation of sensor type and cable length.
Check sensor and cable.
Check the mounting of the s
Gain
ensor and the location of the injection needle.
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