HI 1769-WS CompactLogix® Module

WAVERSAVER® WAVERSAVER® eliminates the effects that surrounding vibration has on the scale weight signal, providing only true data. Read more about WAVERSAVER® INTEGRATED TECHNICIAN® Integrated Technician (IT) troubleshoots your weighing system and diagnoses problems from the front of the instrument or via the PLC.  Read more about INTEGRATED TECHNICIAN® C2® C2® provides quick and easy electronic calibration of a weighing system without the need for heavy test weights. Read more about C2®

If you thought small size couldn’t mean high performance…

Hardy Instruments’ HI 1769-WS is a single channel PLC-style weigh scale module for use with the Allen-Bradley MicroLogix® 1500 and CompactLogix® controllers. The HI 1769-WS reads and conditions weight and diagnostic data from strain gauge load sensors or load cells and communicates this data over the I/O chassis backplane to the MicroLogix® 1500 or CompactLogix® processor. The HI 1769-WS module reduces installation costs, as it needs no external stand-alone scale instrument with a wired communications link to the PLC.

The HI 1769-WS conditions and digitizes the weight signal one hundred times per second with more than eight million counts of resolution over a differential signal range of 0 to 15mV. It then transmits the selectable Gross, Net, Tare and/or Diagnostics data to the processor. This high resolution enables the module to tolerate large dead loads and over sizing of the load sensors, while retaining a high level of usable resolution.

The module supplies 5 volts of DC excitation to drive up to four 350-ohm load sensors or load cells associated with a single scale. It will support additional load cells with an external power supply

The HI 1769-WS incorporates Hardy Instruments’ core features of WAVERSAVER®, C2® electronic calibration INTEGRATED TECHNICIAN® (IT). WAVERSAVER® eliminates the effects of unwanted plant and system vibration on the weigh system by permitting the weigh scale module to “see through” the unwanted vibration signals (as low as 0.25Hz), while yielding a stable weight reading. C2® is a field-proven means for calibrating the scale electronically without using test weights, saving the customer both time and money. IT, when used in conjunction with an IT junction box, provides built-in system diagnostics that enable you to troubleshoot and diagnose your weighing system.

Two bi-color LEDs on the module’s front panel report its functional characteristics. At power-up the module checks for correct RAM, EPROM and EEPROM operation. A clear door and removable label enable positioning of your own unique information and viewing once the door is closed.

Auto Zero Tracking allows the HI 1769-WS to automatically compensate for small variations at the zero point of the scale. These variations may be caused by a slight material buildup on the scale platform or vessel. With Auto Zero tracking on, whenever the weight on the scale is within the adjustable zero tolerance (and the scale is not in motion) the gross weight will be set to zero.

A printed instruction manual, that is also available on the Hardy Web site, is supplied with the module.