LINK Systems System 1100 Tonnage Monitor - Manual (Page 82)

CALIBRATION
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6-10
be kept in files.
If the calibration numbers displayed on the tonnage displays
for a particular channel vary, take the median value of the
numbers displayed as the calibration number.
19) Press the EXIT key to end CAL-CHECK mode.
20) Remove the load cells and associated "stack" elements from the
machine and disconnect the cables from the load cells and the
"portable" System 1100 unit.
Calibration is complete.
6.2 Static Calibration with Hydraulic Jacks
1) Follow procedures 1-5 under the Dynamic Calibration with Load
Cells section of this manual.
6) Turn on power to the machine and place the machine ram or
slide at the bottom of stroke position.
7) Turn off machine drive motors or hydraulic pumps, etc., and
place the jack(s) to be used in calibration under the machine
ram or slide.
If a single jack is used, directly center the jack under the
ram or slide.
If multiple jacks are used, the jacks should be placed in a
geometrically symmetrical pattern relative to the center of
the ram or slide. On machines with multiple connections to
the slide, it is preferable to use a jack directly under each
connection.
Also place any plates or parallels under the jack necessary to
reduce the gap between jack and slide at this time. Plates
used to elevate the jack should have greater lateral
dimensions than the jack and should extend beyond the jack on
all sides.
8) Select the CAL-CHECK option in the Config menu to display
calibration numbers. Press the YES key when prompted with
"ESTOP WILL ACTIVE! BEGIN CAL-CHECK (Y/N)?". The calibration