Rice Lake MSI-4260 Port-A-Weigh - Manual (Page 21)

Operation 17
2.3 Tare
Tare is typically used to zero out a known weight such as a packing container or pallet
and display the load in NET weight. A Tare value is entered by pressing the
TARE
key. The TARE function in the MSI-4260 is defined as a Tare-In, Tare-Out operation.
The first press of the
TARE
key stores the current weight as a tare value and then the
scale subtracts the tare value from the gross weight and changes the display to NET
mode. The next press of the
TARE
key will clear the Tare value and revert the display
to GROSS mode.
To view the Gross weight without clearing the Tare Value, program the
USER
key to
the function “NET/GROSS.” The RF Remote Control has a Net/Gross permanently
available.
To Tare and Display the Net Weight
1. Press
TARE
T
.
Note
The weight reading must be stable within the motion window for the tare
function to work.
The scale digits display 0 (or 0.0 or 0.00, etc) and the weight mode
changes to NET.
The backup memory in the MSI-4260 stores the Tare reading and can
restore it even if power fails.
To Clear the Tare and revert to Gross Weight
1. Press
TARE
T
. The Net annunciator will turn off and the Gross annunciator will
turn on.
Tare - Rules for Use:
• Only positive gross weight readings can be tared.
• The stable annunciator (
) must be off. The weight reading must be
stable.
• Setting or changing the tare has no effect on the Gross zero setting.
• Taring will reduce the apparent over range of the scale.

For example, taring a 100 lb container on a 1000 lb scale, the scale will
overload at a net weight of 900 lb (1000-100) plus any additional allowed
overload (usually ~4% or 9d).
• The scale stores the Tare value in non-volatile memory and is restored when
power is cycled.