AutoSetPAC User Manual
1101600
Chapter 3 Initialization and Calibration
77
Recording Tonnage on an AutoSet Calibration Kit
Setting Up and Adjusting the Calibration Kit
This procedure shows you how to set up the AutoSet 2-Channel calibration kit and adjust it to display
the correct tonnage applied to the load cells. If you are using another calibration kit to measure
tonnage on the load cells, follow the instructions provided by that manufacturer.
NOTICE
USE OF HYDRAULIC JACK FOR CALIBRATION NOT RECOMMENDED
Wintriss does not recommend use of a hydraulic jack for calibration. A hydraulic jack is much less
accurate than load cells and more difficult to use. For more information on hydraulic jack
calibration, contact Wintriss Tech. Support.
The AutoSet 2-Channel calibration kit should contain the following items:
•
Calibration modules. These are small enclosures with cables attached. A connector on the end
of each cable plugs into one of the strain link connectors on the AutoSet processor board.
Each calibration module enclosure provides a screw-in connector for the cable from one of
the load cells.
•
Up to two load cells and cables. Use one load cell (single-point calibration) if your press has
only one connecting rod (Pitman), two load cells (double-point calibration) if you have two
(or more) connecting rods. Load cells are placed under the connecting rods.
To adjust the calibration kit to display the correct tonnage applied to the load cells, perform the
following steps, referring to Figure 3-15, page 79, or Figure 3-16, page 80, for location of
components on old- and new-style AutoSet processor boards. If your AutoSet calibration kit has the
current version 2.0 processor board installed, refer to Figure 3-17, page 81.
1.
Open the cover of the AutoSet 2-Channel calibration unit enclosure.
2.
For one-cell calibration, take one calibration module and plug the connector on the cable into the
terminal block labelled “Left Input” (TB6) at the lower right of the AutoSet processor board. The
connector plugs in only one way. If a connector is already plugged into this slot, remove it before
plugging in the connector from the calibration module.
Connect a jumper wire between terminals 2 and 3 on one of the five-pin connectors supplied with
the calibration kit, and plug the connector into the terminal block labelled “Right Input” (TB7) at
the lower right of the AutoSet processor board.
NOTICE
You can use either the left or right strain link input for one-cell calibration. The unused connector
in the other slot must have the jumper wires connected.
For two-cell calibration, plug the connector on the cable from the other calibration module into
the terminal block labelled “Right Input” (TB7).
3.
Screw the connector on one of the load cell cables into the connector on one of the load cells.
Screw the connector at the other end of the cable into the connector on the calibration module. If
you are using two load cells, repeat this step for the other load cell.
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