Elkhart Brass UBEC 1AT AUTO TANK Fill System - Manual (Page 11)

11
CALIBRATION
The TankVision has unique calibration programs that enable it to be used on tanks of all shapes and
sizes.
Note: The standard pressure sensor is limited to a max tank height of ten (10) feet.
OVERVIEW
Magnet Sensor
The calibration programs are accessed by activating the CAL. Magnet sensor that is located at the
bottom on the front of the display module. The sensor is activated by placing the north pole of a small
magnet in close proximity of the sensor. (The sensor will not respond to the south pole of the magnet).
The magnet is then moved about 1” away, this will produce an electronic signal that is similar to a
button being released. If the LEDs in the display do not change try moving the magnet farther away
from the sensor.
In these procedures the term ‘swipe’ will mean to move the magnet up to and then away from the
magnetic sensor at the bottom of the display.
Non-Linear Calibration
The first program is a non-linear calibration procedure that can be used for any shape or size tank.
This procedure must to be used for irregular shape tanks (e.g.: T-shape, oval, elliptical, tank with
through hole, etc.). The program compares the pressure in the tank, as the tank fills at a steady rate, to
time. This provides for very accurate displays.
Linear Calibration
The second program is a linear calibration procedure that can only be used when the tank volume is
proportional to the height. This would include square or rectangular shape tanks with no irregularities.
It is quick way of calibrating a tank to an empty tank, takes the difference and divides it into eight
equal volume displays.
Full Tank Correction
This program is for use to fine tune the tank display after a non-linear or linear calibration procedure
has been completed. It would only be needed in cases where one type of liquid is used for calibration
when a different liquid would normally be in the tank. For example, this would allow the basic
calibration of a foam tank to be done using water and then the calibration would be fine tuned when
the tank is filled with foam concentrate.
Control Valve Position Calibration
This calibration will automatically adjust the AUTO TANK Control Module to the E3F control valve
position. This process must be done in order for the AUTO TANK Controller to function properly.