OHAUS 7000 Series, Инструкция по эксплуатации, Страница: 28 / 134

EN 22 7000 SERIES INDICATORS
2.4.2 Tare
Tare is the weight of an empty container. A tare value subtracts from the gross weight measurement, providing the
computation of the net weight (material without the container). The tare function can also be used to track the net
amount of material being added to or removed from a vessel or container. In this second case, the weight of the
material in the container is included with the tare weight of the container and the display then reflects the net
amount being added to or removed from the vessel.
Tare operations in the T72XW include:

Pushbutton Tare

Net Sign Correction

Keyboard (Preset) Tare

Automatic Tare

Tare Clear
─
Manual Clear
─
Auto Clear

Pushbutton Tare
Pushbutton tare can be configured in setup as enabled or disabled. When disabled, pressing the TARE key
has no effect.
If pushbutton tare is enabled, pressing the pushbutton TARE key initiates a semi-automatic tare. The
T72XW will attempt to perform a tare process. If the process is successful, the display changes to a zero net weight
indication and the previous weight on the scale is stored as the tare value. The net mode will be indicated on the
display.
Several conditions could inhibit the pushbutton tare function:
Motion
– Pushbutton tare cannot be taken when the scale is in motion. If motion is detected when a pushbutton
tare command is received, the T72XW will wait for a programmed amount of time (the default value is 3 seconds)
for a no-motion condition. If a stable (no motion) weight condition occurs before the timeout expires, the pushbutton
tare command is executed.
If there is still motion at the end of the timeout, the command is aborted.
Pushbutton Tare Disabled
– If pushbutton tare is configured as disabled, the
TARE scale function key will not
initiate a semi-automatic tare.
Negative Gross Weight
– Any pushbutton tare attempted when the gross weight is at or below zero is ignored.
Ensure that the gross weight is above zero.
Keyboard Tare
A keyboard (preset) tare is a numeric tare that is entered manually through the numeric keypad or received serially
from a peripheral. The preset tare value cannot exceed the capacity of the scale. Data entered is interpreted to
have the same units as the current displayed value. Motion does not affect the entry of preset tare values.
Keyboard tare can be configured in setup as enabled or disabled. When disabled, the numeric keypad and the
TARE scale function key cannot be used to obtain a tare.
To enter a preset tare value manually, use the numeric keypad to enter the tare value (the data entered will display
in the weight legend if keyboard tare is enabled in setup at Scale > Tare > Types) and press the
TARE scale
function key .
If configured in setup, remote equipment can enter a preset tare value using a serial command
If the preset tare is successful, the display changes to a net weight indication.