WLA200 Rev140407
19
Non-Linear Calibration
This non-linear calibration procedure can be used for any shape or size tank. The
calibration process requires that the tank be empty at the start of the procedure and
then filled at a steady rate of flow.
The term ‘swipe’ means to move the magnet up to and then away from the
CAL.
sensor at the bottom of the display.
To exit the calibration mode swipe the magnet eight times. The top eight display
LEDs go on, the calibration program terminates, no program data is changed.
1. Empty the tank.
2. Apply power to the display module.
3. Swipe the magnet three times to enter the calibration mode.
Result: Top three display LEDs flash on and off.
Note:
Once the calibration process is activated the flow rate of liquid into the
tank must remain constant for the procedure to be accurate.
4. Fill the tank at a steady rate of flow.
5. When the tank is full stop the flow.
Note:
The program only acts on three swipes to set the calibration into
memory, or eight swipes to terminate the calibration program. If a wrong
entry is made, wait six seconds and it will clear.
6. Swipe the magnet three times to set the calibration into memory.
Result: Top three display LEDs go on.
7. After six seconds the calibration process terminates and all the LEDs are on
to show that the tank is full.
Summary of Contents for TankVision WLA200
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