{"product_id":"allen-bradley-1769-ws-single-channel-weigh-scale-module","title":"Allen-Bradley 1769-WS Single Channel Weigh Scale Module","description":"\u003ch2\u003eAllen-Bradley HI1769-WS CompactLogix Weigh Scale Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley HI1769-WS\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-WS\u003c\/strong\u003e Weigh Scale Module, operates as a dedicated hardware component for load cell signal conditioning and strain gauge digitizing within CompactLogix controller platforms. This single-channel module converts millivolt signals from strain gauge load cells directly into high-resolution integer and floating-point weight registers on the controller backplane, bypassing external transmitter hardware.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHI1769-WS (1769-WS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Hardy Instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.26 kg (0.56 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e87 mm x 118 mm x 70 mm (D x H x W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.5 A @ 5 VDC backplane power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e-0.3 mV to +15.3 mV DC plus +5 VDC sense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation Voltage\u003c\/td\u003e\n\u003ctd\u003e+5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Resolution\u003c\/td\u003e\n\u003ctd\u003e1:8,388,608 (20-bit A\/D conversion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Rate\u003c\/td\u003e\n\u003ctd\u003e100 updates per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Mode Rejection\u003c\/td\u003e\n\u003ctd\u003e100 dB minimum at or below 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Rejection\u003c\/td\u003e\n\u003ctd\u003eWAVERSAVER 0.25 Hz and above in 5 selectable steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Cell Support\u003c\/td\u003e\n\u003ctd\u003eUp to 4 x 350-ohm load cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication \u0026amp; Strain Gauge Processing\u003c\/h3\u003e\n\u003cp\u003eThe module integrates directly with the 1769 Compact I\/O backplane bus to deliver high-velocity data transfers at up to 100 weight updates per second. Internal signal conditioning utilizes C2 electronic calibration algorithms alongside WAVERSAVER vibration attenuation filtering to eliminate mechanical noise above 0.25 Hz. Backplane power draw stays below 0.5 A at 5 VDC, while internal diagnostic routines continually monitor load cell excitation current, sense voltage levels, and channel integrity to preserve measurement stability across dynamic batching and filling operations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many load cells can be powered and processed by a single HI1769-WS module?\u003c\/p\u003e\n\u003cp\u003eA: A single module provides 5 VDC excitation power and signal processing for up to four 350-ohm strain gauge load cells connected in parallel.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module be calibrated without using physical test weights?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module supports Hardy C2 electronic calibration, which reads factory-stored calibration data directly from C2-certified load cells across the field wiring, eliminating the need for test weights.\u003c\/p\u003e\n\u003cp\u003eQ: What mechanism prevents mechanical plant vibration from corrupting weight readings?\u003c\/p\u003e\n\u003cp\u003eA: The module incorporates selectable WAVERSAVER digital filtering technology that suppresses mechanical vibration noise at frequencies down to 0.25 Hz across 5 user-configurable steps.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module on a standard 35 mm DIN rail or secure it to an enclosure backplate using M4 hardware. Seat the tongue-and-groove side connectors firmly into the adjacent CompactLogix module and engage the backplane locking lever. Route strain gauge signal conductors using shielded, twisted-pair cable isolated from high-voltage AC cables, variable frequency drives, and heavy inductive equipment. Connect the cable shield to a single-point system ground at the module terminal block or junction box to maintain a 100 dB common mode rejection ratio. Ensure ambient cabinet operating temperatures remain between 0 and 60 deg C with relative humidity within 5 to 95% non-condensing.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52906111271224,"sku":"1769-WS","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/294.jpg?v=1788485087","url":"https:\/\/www.automodulexpert.com\/products\/allen-bradley-1769-ws-single-channel-weigh-scale-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}