New RTD Signal Conditioners From Wixom Company

Wixom-based Acromag has launched a new series of low-cost temperature transmitters designed for harsh environments.

The initial offering in the ST130 series is model ST131, a signal conditioner for resistance temperature detectors driven by an ASIC, or application-specific integrated circuit.

Acromag said the units combine the simplicity of a digital USB setup and calibration interface with the inherent performance advantages of analog signal conditioning.

Selling for just $89 with free Windows configuration software, this DIN Form B head-mount instrument will convert the input signal from any 100 ohm Platinum RTD sensor to a highly accurate, loop-powered 4-20mA output.

A ruggedized design features operations at temperatures from -40 Celsius (-40 Fahrenheit) to 80 degrees C (176 degrees Fahrenheit).

"Our new ST131 RTD transmitter employs the best of analog and digital technologies at a very attractive price," said Don Lupo, Acromag's sales and marketing director. By maintaining a fully analog signal path, the transmitter delivers optimal accuracy, noise resistance and response speed.

Despite their tiny size and economical price tag, ST131 transmitters are full-featured. These transmitters provide sensor excitation and perform advanced signal linearization, lead-wire compensation, and sensor fault detection functions. Designed for harsh environments, the unit's ASIC exhibits very low drift across wide ambient temperatures and is highly resistant to radio and electromagnetic interference. Simultaneous differential sampling and auto-zero techniques yield further accuracy improvements. Another benefit, the output is non-polarized and reverse polarity protected. Factory calibration is also available.

For easy installation, Acromag sells a variety of mounting and wiring accessories. A USB-to-USB isolator protects equipment from ground loops, electrical noise, and surges during configuration. For convenience, a kit supplies the software, isolator, and USB interface cables. Numerous connection head enclosures are also available through Acromag. Select from stainless steel, aluminum, and cast iron housings with explosion-proof or general-purpose ratings. A DIN rail adapter adds more mounting options.

More at www.acromag.com.