Supports High Uptime, Secure Operations
PHOENIX, Ariz., August 11, 2003 – Honeywell (HON: NYSE) Industrial Measurement and Control today introduced the STT25T Dual-Input Smart Temperature Transmitter for temperature measurement in industries such ashydrocarbon processing, chemicals, pulp and paper, and power generation. Designed for critical processes that require high uptime and secure operations, the STT25T accepts two temperature sensor inputs, eitherthermocouples or Resistance Temperature Detectors (RTD), or a mixture of both.Sensor redundancy: The STT25T is well-suited for applications that require high-accuracy RTD measurement, but also involve high temperatures where sensor burnout is likely.
The STT25T solution backs up the RTD with a thermocouple that can maintain a good measurement with a lower, yet acceptablelevel of performance. Sensor integrity: Temperature sensors often are purchased as duplex/dual thermocouples or RTDs; one for taking the active measurement, and the other for performing maintenance cross-checks for sensor integrity. The STT25T can be configured to auto-check one sensor against the other and generate an alarm if a specific difference between the two values occurs.Security: The STT25T has a hard-wire link for selection of upscale or downscale failsafe in the event of a sensor or other failure. Driving the instrument to transmit a higher (upscale) or lower (downscale) reading alerts the user to the problem.
This security feature ensures that even when operating with corrupted memory, the unit will take the appropriate failsafe action.The transmitter’s output signal is provided as a 4-20 mA signal with HART* communication protocol, enabling configuration and monitoring with any HART Communication Foundation handheld, PC-based tools, or Honeywell’s new Pocket PC-based MC Toolkit Configurator.For more information about Honeywell field instruments, access www.honeywell.com/imc .Honeywell International is a diversified technology and manufacturing leader based in Morris Township, N.J.
With 2002 revenues of $22 billion, the company serves customers worldwide with aerospace products and services; control technologies for buildings, homes and industry; automotive products; turbochargers; specialty chemicals; fibers; and electronic and advanced materials. The company’s shares are traded on the New York, London, Chicago and Pacific Stock Exchanges. Honeywell is one of the 30 stocks that comprise the Dow Jones Industrial Average; it is also a component of the Standard & Poor’s 500 Index.
For additional information, please visit www.honeywell.com . Honeywell Industrial Measurement and Control (IM&C) is part of Honeywell’s Automation and Control Solutions group, a global leader in providing product and service solutions that improve efficiency and profitability, support regulatory compliance, and maintain safe, comfortable environments in homes, buildings and industry.
For more information about IM&C, access www.honeywell.com/imc .This release contains forward-looking statements as defined in Section 21E of the Securities Exchange Act of 1934, including statements about future business operations, financial performance and market conditions. Such forward-looking statements involve risks and uncertainties inherent in business forecasts as further described in our filings under the Securities Exchange Act.
*HART is a trademark of the HART Communication Foundation.