Holtgreven Truck Scale Resources - Manual (Page 27)

PT300 Users manual
Rev G, Feb 2011
Page 27 of 44
Calibration
Note: The PT300 scale is calibrated by the factory prior to shipment.
Note: The calibration will achieve the best accuracy if calibration loads are applied to PT300
platform through a metal block, separated from the platform by a thick piece of firm rubber; this
setup best simulates the load applied by a tire. Loading without a block can damage the scale.
See Tool List below for complete specifications.
Procedure: Calibration (Verification)
Check front/back load cell balance
Tools required
Twenty thousand pound calibration press.
1.5" x 1.5" x 12" aluminum loading block.
Static dissipation station.
#2 Phillips screwdriver for bezel and board mounts.
Small slotted blade screwdriver.
Torque-seal potentiometer shaft sealer.
Caution:
The following procedure must be performed at a static controlled workstation.
Load cell locations used in the following procedure are shown below.
1
2
Load Cell Placement