WI-127 Indicator

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-127ís 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 instrumentís memory bank.

The WI-127ís 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 Harmonizerô 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. Thatís why the WI-127ís 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-127ís 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 Harmonizerô 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 instrumentís 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 dev