Fairbanks 3300 Reliant Series Floor Scale - Manual (Page 12)

10/06 12 50783 Issue 1
3.) Place a concentrated weight (25% of platform capacity) on corner 1,
move it to corner 2, corner 3 and corner 4, noting the displayed
reading on each corner.
4.) If corners require adjustment:
a.) Place the concentrated weight on the corner displaying the
lowest weight and use the appropriate potentiometer to
change the displayed weight to read the same as the
highest reading by turning the potentiometer clockwise
(CW). Repeat this procedure while rechecking all corners
until there are no errors. Perform a zero reference check
with a unloaded platform, then repeat the corner test to
ensure all readings are the same before proceeding.
4
4
3
3
2
2
1
1
+ SIG - SIG - SEN - EXC + SEN - EXC SHLD
+E -E SH -S +S +E -E SH -S +S +E -E SH -S +S +E -E SH -S +S
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Note:
As you move the weight(s) from corner to corner, do NOT zero the scale. Remember, at this
time you are only adjusting the corners to be the same, not a performing a correct calibration.
Note:
The balance junction box assembly has four (4) extended range, multi-turn potentiometers,
one for each load cell. If you have difficulty cornering the platform, turn all potentiometers to
the fully counter clockwise (CCW) position until a clicking is heard when turned. With the
weight on the lowest reading corner, turn the corresponding potentiometer clockwise (CW) to
read the same as the highest reading corner. Repeat this procedure for each corner until the
platform is properly calibrated.