How To Electronically Calibrate The Sb-100 Meter (E-Cal) - Bennett 3700 Series Installation Manual

How to Electronically Calibrate the SB-100 Meter
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. The 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 the 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 is being calibrated (see figure 28).
calibrate the correct meter! To make sure, locate the meter that is being
worked on and the valve that is connected to it. Follow those valve wires to
the correct CPU/Control Board to ensure that the correct meter is being
electronically calibrated (see figure 29). With the power on, locate the
electronic calibration switch on the top of the CPU/Display board, which is
mounted to the door (see figure 30).
Step 4 - Break the seal and move the switch to the calibrate position. Close
the door. The display should read the current calibration value.
Step 5 - Press the "Enter" button along the top edge of the CPU/Display
board. Figure 31 shows that there are 3 buttons next to the electronic
calibration switch. The functions of the buttons are "Enter", "Up", and
"Down". Use these buttons to enter electronic calibration data.
(E-Cal Option)
IMPORTANT - Make sure to
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Figure 28 - Open the upper door.
Figure 29 - Follow the valve wires
from the meter you are
calibrating to make sure you are
calibrating the correct meter.
Figure 30 - Remove the seal and
turn the e-cal switch "ON".
Figure 31 - "Enter", "Up" and
"Down" keys used to input data.
120001 Rev K 1-19-18