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Fine tuning the flow sensor sensor cal – TeeJet TASC-6100 User Manual

Page 33

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2-17

98-05018

R2

CE & StandardVersion

TASC 6100

Setup

& Cal.

Mid-T

Mid-T

ech

ech

more than 100 PSI (6.8 br). Push INC. switch again
and hold for about 3 seconds. Display reads "PSi (br)
xxx". The xxx is a pressure reading. The INC./DEC.
switch can now be used to adjust the pressure reading
on the console to match the reading on the pressure
gauge. If no switch changes are detected for 3
seconds, the console display reverts to "OPEN"
again. Actuating the DEC. switch when the console
reads "OPEN" causes the console to read "CLOSE"
and the valve closes.

Note: A display reading of "PSi (br) - - " indicates that the
pressure sensor is not connected. A reading of "PSi (br) -
0" indicates a reading of less than 0 PSI (br). This
suggests that the sensor may need to be recalibrated to 0
pressure. (See "Setting The Zero Set Point" on the
previous page.)

Fine Tuning The Flow Sensor Sensor Cal. #

NOTE: We recommend that these tests be done using
water, and only after neutralizing the tank and system.

Once the initial calibration number is determined and
entered into the console, a calibration run should be
made to adjust the number for maximum accuracy.

The most critical part of the calibration procedure is
accurately measuring the discharge of large volumes of
liquid. Increased accuracy of measurement means
increased calibration accuracy. Since each operator's
facilities are different, it is not possible to prescribe a
standard method of measuring discharge. Successful
methods include using a second, calibrated flow meter,
using a truck scale and calculating volumes based on
weight and density of the liquid discharged, and by
discharging into a calibrated tank.

It will be necessary to pump and measure at least 100
gallons and as much as 300 gallons, depending on the
accuracy required. Larger volumes allow greater accu-
racy.