M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
Page 112
MSI-3750 Digital Weight Indicator
◆
User Guide
SECTION 8 – SCALE CALIBRATION
CALIBRATE GENERAL INFORMATION
The following sections are intended for qualified scale technicians. Calibrating a
scale based on the 3750 Meter requires that adequate test weights are available (at
least 20% of capacity required).
See the “Calibration Flowchart” for an overview of the calibration process.
It is not necessary to remove the meter front panel to calibrate. Only the small seal port
screw on the left side of the unit should be removed!
For a new installation, replacing the meter, or setting the Capacity and/or Count-
by (d):
1) First, follow the “Reset Calibration” procedure below.
2) If the unit is legal for trade, set the appropriate standard with the “LEGAL
STANDARD” procedure. If the unit is to be used with metric units only set
the standard to “METRIC”.
3) Follow the “INITIAL CALIBRATION” procedure to set calibration units,
capacity, “d”, and gain.
4) Reseal the Cal port when finished.
For a simple calibration:
1) First follow the “Enable Calibration” procedure below.
2) Next, follow the procedure in the “STANDARD CALIBRATION” section.
3) Reseal the Cal port when finished.
Dual Load Cell (ABC) Systems: Program a Function Key to the function “SCALENUM” in
order to select which input is to be calibrated. See Section 2. Both Input A and Input B must
be calibrated after a Reset Cal or Reset All.
ENABLE CALIBRATION
The seal port must be opened to enable calibration. Before starting this procedure
you should have an accurate test weight system of adequate capacity (at least 20%
of capacity) for the load receptor connected to the MSI 3750. Calibrate a Legal-
For-Tade 3750 with test weights certified by the appropriate regulatory agency.
Summary of Contents for MSI-3750
Page 145: ......
