Acromag introduces intelligent strain gauge/load cell transmitters with time-saving software configuration 

Software speeds setup of I/O ranges, limit alarms, auto-tare, and other signal conditioning functions.

Acromag's new 851T IntelliPack^® Transmitters feature an internal microprocessor that simplifies setup, delivers superior accuracy, and performs advanced signal processing functions. Input signals from strain gauge and load cell sensors wired in a Wheatstone bridge format are isolated and converted to DC current or voltage output signals. Windows 95/NT configuration software helps users quickly set input/output ranges, enable limit alarms, define transfer functions, and document these settings. Push-buttons and LEDs enable fast field calibration (no PC required). Four-way isolation safely separates input, outputs, and power. Removable terminal blocks further simplify installation. Prices start at $350 with 24-hour shipment (available first quarter 2002).

One model handles full, half, and quarter-bridge input formats on 120, 350, or 1K ohm bridges with 1-10mV/V sensitivity. A built-in bridge completion function (full-to-half and quarter-to-full) uses precision, ratio-matched resistors for increased accuracy. The output supports 0-1mA, 0-20mA, 4-20mA, 0-5V, and 0-10V DC ranges. An optional SPDT relay output enables local limit alarming.

The internal microprocessor offers several advanced signal processing options: linearization, averaging, auto-tare conversion, and lead-wire compensation. Remote triggering of tare conversions compensates for extra loads such as a container or bridge imbalances. Other premium features include self-diagnostics and a high-resolution A/D converter for superior accuracy and low noise.

Acromag's configuration software employs friendly pull-down menus and fill-in-the-blank screens. No programming is required. A hardware key plugs into a computer's EIA232 serial port and provides an isolated interface between the IntelliPack and the PC. A cable with RJ11 plugs at each end links the key to the serial interface jack on the IntelliPack.

Once connected, the software reads the IntelliPack's memory to determine the unit type and loads the appropriate configuration form with several property pages. As the user selects options on the general property page, the other pages are dynamically customized to speed the user through the procedure. After entering the input range, calibration, and other parameters, the configuration downloads to the unit's memory. The configuration data can also be saved for rapid duplication on additional units and printed for archiving to minimize downtime.

A long list of advanced features delivers high performance and ensures reliable operation.

• Ruggedized circuitry provides protection from RFI, EMI, ESD, SWC, and EFT.
• Wide ambient temperature range ensures reliable performance from -25 to 70°C.
• 4-way isolation eliminates ground loops and protects against noisy transient signals.
• Wide DC supply range supports redundant supplies and battery backup power.
• Linearization and other signal processing functions are performed internally.
• High-power SPDT relays switch voltages up to 230V AC at currents up to 5A.
• Deadband (user-defined) eliminates relay chatter and prolongs contact life.
• Relays provide automatic/latching alarm reset and failsafe/non-failsafe options.
• Relay delay option provides adjustable reaction time to filter transients.

Acromag, a multimillion dollar international corporation, has been manufacturing and developing measurement and control products for more than 40 years. They offer a complete line of industrial I/O products including process instruments, signal conditioning equipment, data acquisition boards, distributed I/O systems, and communication devices.

For more information about Acromag products, call the Inside Sales Department or Marketing Communications at (248) 624-1541, (800) 881-0268, FAX (248) 624-9234, or write Acromag, Inc. at P.O. Box 437, Wixom, MI 48393-7037 USA.

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 Data Sheet (pdf 238KB)

September 9, 2001

Contact:
Sales - Inside Sales
(e-mail: sales@acromag.com)
Editorial-Robert Greenfield, Marketing Communications Manager
(e-mail: rgreenfield@acromag.com)