Tare - Mettler Toledo IND231 Mode D'emploi

When the scale platform or weighbridge is empty, the terminal should indicate zero. The gross zero
reference is recorded during calibration. If pushbutton zero is enabled in configuration and the
weight is within the zero range, pressing ZERO will capture a new gross zero reference point.
1.4.5.1. Automatic Zero Maintenance
Automatic Zero Maintenance (AZM) enables the IND231/IND236 to reset to the center of zero in
order to compensate for conditions such as terminal or load cell drift or debris on a scale platform.
The AZM operating range is selectable from 0.5, 1, 3 or 10 divisions. Within the configured range,
when the terminal is in a no motion condition, AZM makes small adjustments to the current zero
reading to drive the weight reading toward the true center-of-zero. The feature does not function
when the weight is outside the configured AZM range.
1.4.5.2. Power up Zero
Power up Zero enables the IND231/IND236 terminal to capture a new zero reference point after
power is applied. If there is a motion during power-up zero capture function, the terminal will
continue to check for a no-motion condition until zero is captured.
Power up zero can be disabled or enabled, and a range above and below calibrated zero can be
configured. The range is selectable from +/-2%, +/-10% or +/-20% of capacity and can include a
positive range and also a range below calibrated zero.
1.4.5.3. Pushbutton Zero
The pushbutton (semi-automatic) zero function can be activated by pressing the ZERO key
programming a discrete input, or by issuing a serial command.
Any type of semi-automatic zero can be set to +/-2%, +/- 10% or +/- 20%, relative to the
calibrated zero point.
The semi-automatic Zero command can be initiated via a discrete input, or an ASCII 'Z' command
sent serially (in CPTZ and SICS interface modes).
1.4.6.

Tare

When a function key is set to Tare, it has the same effect as the tare key
Tare is the weight of an empty container. A tare value is subtracted 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 result of any additions to or
subtractions from the vessel.
Tare operations in the IND231/IND236 include:
1-8 METTLER TOLEDO IND231/IND236 Quick Guide
•
Automatic Tare
•
Tare Interlock
.
•
Clearing Tare
•
Keyboard Tare
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| 00 | 08/2013