OHAUS 7000 Series, Instruction Manual, Page: 27 / 134

7000 SERIES INDICATORS EN 21
2.3.9 Setup Access
The last icon displayed in the OPERATOR menu accesses the SETUP
menu, from which all the terminal’s
programming parameters can be viewed and modified. The settings and options available in setup are described in
detail in Chapter 3, Configuration: Terminal.
It is not intended that operators enter the setup mode. After a weighing system is installed and is operational, it
should not be necessary for an operator to access setup.
Note that a security password can be enabled in setup. When a password is set, it must be entered in order to
access setup. This protects the setup parameters from inadvertent changes.
2.4 Basic Functionality
This section provides information about T72XW basic functionality. Functions addressed in this section include:
Zero Clearing Tare Information Recall
Tare Print Target
Refer to Chapter 3, Configuration: Terminal, for further information about programming all the functionality
described in this section.
2.4.1 Zero
The Zero function is used to set or reset the initial zero reference point of the terminal. There are three types of
zero setting modes:

Automatic Zero Maintenance

Power Up Zero

Pushbutton Zero
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.
Automatic Zero Maintenance
Automatic Zero Maintenance (AZM) enables the T72XW to compensate for the build up of small amounts of weight
and track itself back to the center of zero. Within the AZM operating range (selectable from 0.5, 1, 3 or 10
divisions), when the terminal is in a no motion condition, it makes small adjustments to the current zero reading to
drive the weight reading toward the true center-of-zero. When the weight is outside of the programmed AZM range,
this feature is not functional.
Power Up Zero
Power-Up Zero enables the T72XW terminal to capture a new zero reference point after power is applied. If there is
motion during a 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 programmable from 0% to 100% of capacity and can include a positive range and also a range below
calibrated zero.
Pushbutton Zero
The pushbutton (semi-automatic) zero function can be accomplished by pressing the ZERO key , by
programming a discrete input or by issuing a serial command.
The range for all types of semi-automatic zero is selectable (Disabled, 2% or 20%) plus or minus from the
calibrated zero point.
Remote initiation of the semi-automatic Zero command is possibl
e via a discrete input, or an ASCII ‘Z’ command
sent serially (CPTZ and SICS interface modes)
.