Bennett 3000 Series Service Manual page 71

Electronically Calibrating the SB100 (Standard Flow)
and FPP (High Flow Meter (ECal)
How to set the Electronic Calibration - Electronic calibration is a
simple method to calibrate the meters in the dispenser. This method
uses a mathematical algorithm in the software to account for meter
wear rather than mechanical methods to limit the piston throw within the
meter.
This method also eliminates the parts associated with mechanical
calibration in the meter. Result is a more symmetrical meter that will be
intrinsically more accurate.
Follow these steps to electronically calibrate the meter:
Step 1 - Pump 5 gallons as displayed on the dispenser display into your
test can. Make sure to stop pumping at exactly 5.000 gallons.
Step 2 - Read the plus / minus value in the test can.
Step 3 - Unlock and open the electronics door on the side with the
meter that you want to calibrate IMPORTANT - Make sure you are
calibrating the correct meter! To make sure, locate the meter you are
working on and the valve that is connected to it. Follow those valve
wires to the correct CPU/Control Board to ensure you are electronically
calibrating the correct meter. With the power on, locate the electronic
calibration switch on the top of the CPU/Display board (mounted to the
door) .
Step 4 - Break the seal and move the switch to the calibrate position.
Close the door and you should see the display read the current
calibration value.
Step 5 - Press the "Enter" button along the top edge of the CPU/Display
board. See Figure 11. Figure 11 shows that there are 3 buttons nest to
the electronic calibration switch. The functions of the buttons are
"Enter", "Up", and "Down". You will be using these buttons to enter
electronic calibration data.
Open the upper door.
Follow the valve wires from the
meter you are calibrating to
make sure you are calibrating
Remove the seal and turn the
"Enter", "Up" and "Down" keys
71
the correct meter.
ecal switch "ON".
used to input data.
107932 Rev G 4-24-17