Calibration; Calibration Procedures - AEC SM720 Operation Instructions Manual

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Calibration Procedures

5 Calibration

5.1 Calibration Procedures
1. Install the sensor proberly following the installation instructions.
2. Fill the vessel to the zero level needed
3. Press zero and hold by touching the zero circle with the
magnetic pen until the LED2 indicator starts to flash then release
immediately.
4. The control card will read the capacitance and Transmits 4 mA
through the wires
5. Start filling the vessel until it reaches the desired span distance.
6. Fill the vessel to maximum level and Press and hold the span
by touching the span circle using the magnetic pen until the
LED2 starts to flash then release immediately.
7. The control card will read the capacitance and transmits 20
mA through the wires
SM720 Capacitive Level Transmitter
Fig.8: Calibration Step 2
Fig.9: Calibration Step 5
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