WI-127
Brochure
Just one instrument - with so much capacity for work
The WI-127 Indicator from Weigh-Tronix is proving to be the instrument of choice
in thousands of industrial settings. It brings a full spectrum of standard
features and a flexible options package which make it easily adaptable to almost
any application. Seldom will you find the opportunity to purchase a single
instrument with this much power and functionality.
One instrument, multiple tasks
One way to gauge the value of a weighing instrument is to measure its ability to
grow and adapt to new processes. The WI-127 Indicator switches easily from job
to job. The WI-127's operations mode lets you view or change the parameters for
all its normal weighing operations: push-button tare; keypad tare entry; one to
ten tare registers; setpoint registers; checkweighing values for target weight,
over and under; identification number, time and date. Its simple setup allows
you to choose any capacity you need.
Use it with a simple floor scale for gross-tare-net weighing. Operators can
enter a tare value any of three ways. They can use a container and do a simple
push-button tare. They can use the keypad to enter a known tare value. They can
select one of the ten tare registers from the instrument's memory bank.
The WI-127's NEMA 4X stainless steel enclosure protects it in harsh industrial
settings. It is immune to water, dust, dirt, and changes in temperature.
Its large, bright display is easy to read from a distance. Its lighted digits
are visible even in low light environments.
Simple batching systems
In order for a weighing instrument to be successful as a batching indicator it
must have two critical characteristics. First, it must be capable of overcoming
the inaccuracies caused by vibration from wind, traffic, conveyors, augers,
loading and unloading of ingredients. And second, it must be expandable to
operate a full system.
Noise and vibration filtering
The WI-127 features the Harmonizer� fully adjustable filtering system which
corrects for environmental noise and vibration.
Harmonizer offers three types of application-specific filtering: multiple levels
of filtering for vibration frequency, adjustment for amplitude, and finally a
selectable "threshold," or a level of weight change at which the dampening is
disabled. This speeds the weighing process; the scale reads quickly any weight
changes that exceed the selected threshold value.
Input/output opportunities
To fit effectively into a system, such as a batching or checkweighing operation,
scale instrumentation must have the capacity to work with multiple components.
That's why the WI-127's designers gave it such flexible input/output capability.
It has three standard setpoint outputs for controlling peripheral equipment. It
has options for a total of ten outputs.
The WI-127's built-in serial port, which enables you to send scale data to a
printer, computer or programmable controller, can be configured to RS-232,
RS-422/485 or 20mA current loop.
Operators can use its logic level inputs to provide remote operation of the
Zero, Print, Tare, Select and Unit keys in system applications.
In-motion weighing
Two things determine the success of the WI-127 Indicator as an instrument for
in-motion weighing. First is the Harmonizer� filtering system which adjusts to
correct for the noise and vibration that is a natural part of most in-motion
weighing applications such as monorail and conveyor weighing. The second reason
for its success as an in-motion weighing instrument is its speed. As an
in-motion weigher, the WI-127 uses two inputs that signal when an object enters
and exits the weighing zone. The instrument's one million count analog to
digital converter samples at 60 times per second. The indicator averages the
weight samples it takes while an object is between the two inputs and then feeds
each resulting weight value to a printer or to a data collection device such as
a PC.
The WI-127 In-motion Indicator easily expands to a system. For example, you can
employ its three standard outputs to operate peripheral devices for a
checkweighing system.
Inbound/outbound weighing
The WI-127 Indicator, which supports up to twelve 350-ohm load sensors, is
proving its value daily in truck scale applications. It will be an equally
valuable tool for any system that needs automatic calculation of net weight
followed by serial transmission of the net value to a printer, computer, or
remote display.
The WI-127 Inbound/Outbound lets you select from two methods of net weighing.
Operators can get a tare weight by a live weighment of an empty container or
vehicle. Or they can use the keypad to enter a known tare weight. Operators can
store the tare values in the instrument's 300 memory channels. During later
weighments the indicator will use the stored tare to automatically calculate the
net value and transmit it to computer, printer, or remote display.
In addition, the instrument accumulates and reports scale data. The WI-127
automatically tracks the number of transactions and accumulates the totals for
each tare register. After any series of weighments, operators can request a
printed report from the WI-127 Indicator.
The inbound/outbound report prints the time and date, all truck or container
numbers in the database and their corresponding net totals.
Options
� Legal for trade, Class III/IIIL 10,000d
� Stainless steel NEMA 4X enclosure
� Bright, easy-to-read, .8 inch LED display
� Numeric keypad
� Three programmable units of measure
� Three setpoint outputs, options for up to ten
� Seven logic level inputs
� Built-in serial port
� Ten tare memory
� Built-in time and date, battery protected
� Harmonizer� filtering software
� Front panel configuration
� Sixty times per second A to D conversion
� Display rate -Ten times per second
� Five point linearization
� Battery backed-up RAM
� Options for system expansion
