New high-accuracy two-wire temperature transmitters support HART^®, software, or push-button configuration 

Smart transmitters with optional LCD display deliver 0.5°C accuracy and minimal temperature drift in a compact, hockey-puck package for easy mounting in hazardous location industrial enclosures.

Acromag’s new programmable transmitters convert temperature and other sensor inputs to a proportional process current signal. A HART protocol output is optional. Two models are available. The 151T model ($295) is a standard PC/Windows-configurable two-wire transmitter. The 155H ($395) is a two-wire transmitter with a HART interface for communication and configuration. Both units maintain accuracy to within ±0.5°C and are highly resistant to ambient temperature drift for practically maintenance-free operation. Options include a plug-in LCD display ($160) and an explosion-proof enclosure ($85). The two-line display provides a 4½ digit readout in °C or °F, a bar graph, and a text line for tag information. Push-buttons on the display unit allow you to configure the transmitter in the field. The enclosure is ideal for field mounting in hazardous locations and includes a window to keep a clear view of the LCD display.

A single unit is ideal for a broad range of applications. It accepts a wide variety of input sensor signal ranges: thermocouples (type B, C, E, J, K, L, N, R, S, T, U); RTDs (100 ohm Pt (alpha 385/392), 10 ohm Cu, 100 ohm Ni, 120 ohm Ni); millivolt signals (-15 to 115mV); and resistance devices (0 to 500 ohms). Output is a standard 4-20mA process control signal or an optional HART protocol interface. The transmitter receives power (12 to 42V DC) from the 4-20mA process loop.

Acromag’s 1500 series transmitters bring the best elements of analog and smart digital technologies together to offer unsurpassed value for temperature measurement applications. They deliver superior accuracy, unrivaled versatility, and are extremely easy to use. Save time. Cut costs. And improve performance. Special features include:

• Microprocessor reduces setup time, improves performance, and performs self-diagnostics.
• Multivariable transmitter accepts a variety of input sensor types to meet most applications and help minimize inventory requirements.
• Multifunction LCD readout displays temperature in °C or °F, a bar graph, the tag name, and diagnostic data.
• Flexible configuration supports setup using a PC with Acromag’s Windows software interface, a handheld 275 HART communicator (155H only), or using pushbuttons on the LCD display.
• 22-breakpoint linearizer table helps the user define custom output transfer functions.
• Sensor break detection and reporting functions allow users to specify a failsafe output and post a message on the optional LCD display.
• Automatic cold-junction compensation ensures high accuracy over a wide temperature range.
• Isolation between input/output circuits allows the use of grounded or ungrounded sensors.
• Output ranges can be set in engineering units anywhere within the input sensor range. No minimum/maximum span limitation.

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. Information is also available on the Acromag web site at http://www.acromag.com.com.

Data Sheet: HTML

February 29, 2000

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