How To Mechanically Calibrate The Sb-100 Meter - Bennett 3000 Series Installation & Operator's Manual

How to Calibrate the SB-100 Meter
The Bennett SB-100 Meter is built to maintain accurate measurement under normal operating
conditions. The meter is a positive displacement device with rods and pistons, which require a break in
period. The meter is calibrated at the factory using a solvent for safety purposes, and must be
calibrated after it has been installed. We strongly suggest recalibration of the meter after a 90 day break
in period.
Each SB-100 meter is provided with the following
calibration information:

The dial adjusting cover has (+) and (-) arrows
to indicate the correct direction to rotate the
dial to either increase or decrease delivery.

A self-adhesive metal label listing the minimum
incremental adjustment is attached to the
collector housing immediately above the
adjusting dial.
The dial cover has two pin hubs, one to the left of
the shaft and one to the right. The seal pin may be
inserted in either hub.
smallest adjustment (.6 cu. in.) occurs when the
pin is pulled from one side and inserted in the other
side by moving the dial the least amount or half a
hole. A 1.2 cu. in. adjustment is made by pulling
the pin and turning the dial until the next adjacent
hole aligns with the same hub and reinserting the
pin.
To calibrate the meter, follow this procedure:
1. Measure the actual delivery of the meter at fast
flow in an accurate test measure. Dispense a
minimum of 5 gallons (20 liters).
2. Cut and remove the existing seal wires and
remove the seal pin. See Figure 22.
3. Turn the dial the necessary amount in the (+)
or (-) direction to increase or decrease the
quantity of fuel delivered.
4. Re-insert the seal pin in the desired pin hub.
5. Dispense 5 gallons (20 liters) of fuel to allow
the meter to adjust to the new settings. Do not
make any adjustments based on this delivery.
6. Make sure the meter is properly calibrated.
Dispense another 5 gallons (20 liters) of fuel
into an official test measure to check the
calibration.
See Figure 21. The
23
Example 1
1. A fast flow test at 11 GPM shows a +3 cu. in.
reading in a five gallon test measure.
2. Remove the existing seal and pin and turn the
dial clockwise (-)five minimum adjustments
(half holes) and reinsert the pin.
3 cu. in. = 5 half holes (-)CW
.6 cu. in./adjustment
3. Test and reseal.
Example 2
1. A fast flow test at 11 GPM shows a -2 cu. in.
reading in a five gallon test measure.
2. Remove the existing seal and pin and turn the
dial counterclockwise
adjustments (half holes) and reinsert the pin.
2 cu. in. = 3 half holes (+) CCW
.6 cu. in./adjustment
3. Test and reseal
107929 Rev E 04-24-17
(+) three minimum