Rice Lake MSI9300 PortaWeigh Crane Scale Operator Manual - Manual (Page 10)

Page 10 MSI-9300 Crane Scale™ • User Guide
MSI-9300 Porta-Weigh+ Crane Scale
Tare - Rules for Use:
1) Only positive gross weight readings can be tared. Weight can be tared in both the NET and GROSS
modes. When in the NET mode, the TARE is not cumulative, all the weight is zeroed.
2) The motion annunciator must be off. The weight reading must be stable.
3) Setting or changing the tare has no effect on the Gross zero setting.
4) Taring will reduce the apparent over range of the scale. For example, taring a 10 lb. container on a 60
lb. scale, the scale will overload at a net weight of 50 lb. (60-10) plus any additional allowed overload
(usually ~4% or 9d).
5) The scale stores the Tare value in the current ID Code memory until cleared. Each available ID Code
can store independent Tare values.
Multiple Tare Memories
MSI-9300 Series crane scales are capable of storing Tare values through the use of the ID Codes. Each ID code
stores an independent Tare. ID Codes are accessible through the MSI-3750CS, MSI-9750A or MSI-9850, or
through a MSI-9020 CellModem using Host Commands.
SPECIAL TARE MODES
The Tare function has two special modes. These modes are configured through the Comm Port. See the MSI-
9000 CellScale User Manual for information on configuring the Tare Mode.
UNIV TAR
The Universal Tare feature allows a single Tare value to be shared by all ID Codes. With UNIV TAR enabled
the individual Tares stored with each ID Code are ignored (but not erased). Disabling UNIV TAR will restore
the original Tare values. UNIV TAR is intended for those applications where a common carrier or pallet is
used, but multiple ID Codes are necessary for data collection.
AUTO CLR
Enabling “AUTO CLR” causes the MSI-9300 to clear the Tare Value after each lift greater than 0 NET. The
Tare Value is cleared and the display mode reverts to Gross Weight once the load is removed (the weight goes
below 0 NET). The “ON TOTAL” setting clears the Tare Value after the load is totaled. The default for the
“AUTO CLR” function is “DISABLED” . When disabled, the Tare Value can only be cleared manually (see
“To Clear Tare and return to Gross Mode”.)
NET/GROSS
Switches the display between Net and Gross modes. Net Weight is defined as Gross Weight minus a Tare
Weight.
To Switch Between Net Mode and Gross Mode
Switching back to Gross mode from Net mode will not clear the Tare value. This allows the operator to use the Gross Mode temporarily without having to rees-
tablish the Tare value. Only manually clearing the Tare or setting a new Tare will change the tare value held before switching into Gross Mode.
OIML Legal-for-trade units only: The NET/GROSS key is temporary action only. The Gross weight is displayed for 2 seconds and then the display
returns to the Net Mode. The only way to return to permanent Gross readings is to clear the Tare (see Clear Tare procedure).
1
NET/GROSS
GRS
2
NET/GROSS
NET
1) Starting in the NET weight mode, push NET/GROSS.
The weight mode will change to Gross weight.
If you are in Gross Mode and a Tare value has not been established, the
Net/Gross key has no effect.
2) Pushing NET/GROSS again will revert the display to the
NET mode.
UNITS
Allows easy weight units conversions. Although the CellScale offers up to 8 units, the MSI-9300 will only
display pounds or kilograms.
This operation requires that the Test/User Key function is set to Units. See “Setup USER key Function ”.
To Change the UNITS
1
TEST
kg
TEST
lb
Push the TEST/USER key (programmed as UNITS). The
weight display will toggle between kg and lb.