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Calculating the Calibration Factor
309497L 19
Calculating the Calibration Factor
Use the following tables and formulas to calculate the change to the calibration factor.
Example of Calibration Adjustment for Motor Oil (quarts - 368)
Dispense into a clean, calibrated, volumetric measuring flask until the meter display indicates 1 quart of fluid has
been dispensed.
• In the following example, the flask shows the volume is less than one quart (-1.2 ounces). See the left column
and find the number closest to -1.2 ounce value which is 1.0.
• Look for the corresponding number in the right column, which is +12. If the current calibration factor is 368, add
12 to get the new calibration factor of 380.
• Change this factor for a fluid in Tank Setup and for given meter(s) in Meter Setup.
The table on the right lists approximate calibration fac-
tors for different fluids. Your calibration number may vary
slightly due to temperature or flow rate.
For greater accuracy, submerge the nozzle and let the air settle out of the fluid for ten minutes before noting the
volume.
Metric Measurement
Measuring in liters, and 1 liter is dispensed
U.S. Measurement
Measuring in quarts, and 1 quart is dispensed
Error in Milliliters (ml) Change Calibration
Factor by:
Error in U.S. ounces
(oz.)
Change Calibration
Factor by:
+ 50 - 20 + 1.7 - 20
+ 40 - 16 + 1.4 - 16
+ 30 - 12 + 1.0 - 12
+ 20 - 8 + 0.68 - 8
+ 10 - 4 + 0.34 - 4
+ 0 no change 0 no change
- 10 + 4 - 0.34 + 4
- 20 + 8 - 0.68 + 8
- 30 + 12 - 1.0 + 12
- 40 + 16 - 1.4 + 16
- 50 + 20 - 1.7 + 20
Fluid
Calibration
Number
Quarts Liters
Oil (10W-30) 368 389
Gear Lube 375 396
Automatic Transmission Fluid 368 389
Antifreeze 348 368