Liquid Controls M-MA Meters - Manual (Page 11)

to set the standard adjuster:
1. Remove the dust cover. See Removing the Dust Cover on
page 13.
2. Check meter registration by delivering product to a reliable,
accurate prover. Perform multiple delivery tests to verify the
meter repeatability.
3. Record the setting indicated on the adjuster:
4. Note the difference between the volume of the prover and the volume indicated on the meter counter.
Calculate the % correction required using the formula below.
These instructions apply to meters equipped with mechanical
output accessories only. If your meter is equipped with an
electrical output (i.e., electronic pulser), refer to the manual
for the electrical component your Owner’s Information Packet.
Mechanical Instructions Only
settInG the standard adjuster
% Correction = x 100
Volume in prover - Volume on meter counter
Volume in prover
5. Loosen the adjuster clamp screw.
6. When the prover volume is less than the meter counter volume, add the percentage to the original adjuster setting by turning
the thimble towards the arrow marked larger (volume). Correct the original setting by approaching the number desired from the
next larger number. For example, if the desired adjuster setting is 2.4, turn the adjuster thimble to the left to number 5, then to
the right to obtain the 2.4 setting. Adjuster is currently set at 2.3 in the illustration below.
7. When the prover volume is more than the meter counter volume, subtract the percentage from the original adjuster setting by
turning the thimble in the direction of the arrow marked smaller volume percent.
8. Retighten the adjuster clamp screw. Run product through the meter to allow the adjuster to take a set. Then make several
prover runs to check for accuracy
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