Hardy HI 4050, Руководство пользователя, Страница: 107 / 192

Calibration 99
•
•
•
•
•
•
Chapter 5
• • • • • •
Calibration
Chapter 5 describes calibration procedures. For the Weight Controller to give precise
readings, it must be routinely calibrated both during operation and when it has not used for
an extended period of time. It is important that users and service personnel be familiar with
the procedures in this chapter before installing or operating the HI 4050 Weight Controller.
All calibration is done in the Gross mode. Be sure to follow all the procedures completely
to insure that the weights read by the controller are accurate.
Pre-Calibration Procedures
Mechanical Check Procedures
Check to determine if the load cells have been
installed properly. Refer to your load cell I&M
manual for proper installation instructions. On
some load cells an arrow indicates the
direction of applied load. If the arrow points in
the wrong direction, change the position of the
load cell so that it is mounted in the direction
of the applied load.
Check for Binding on the Load Cell or other
parts of the system.
CAUTION - Binding on a Scale/Vessel or
Load Cell does not allow the load cell free
vertical movement and may prevent the
instrument from returning to the original
zero reference point.
ATTENTION – La reliure sur une Scale/Vessel ou Load Cell ne permet pas à la
Load Cell de faire des mouvements verticaux et peut éviter à l’appareil de revenir
au point original de référence zéro.
A load cell must be mounted so that 100% of the load ( Contents) are vertically
passing through a load cell.
•
Visually check to see that nothing is binding the load cell or other parts of the weighing
system.
Direction of
applied load
Vessel