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Product of the Month

New 6-channel Thermocouple Input Modules Simplify Remote Temperature Monitoring on an Ethernet Network

Acromag expands BusWorks® 900EN Series with thermocouple input modules to provide an easy and inexpensive solution for bringing temperature sensor data onto a Modbus/TCP network.

Acromag’s new BusWorks® 965EN Input Modules interface thermocouple and millivolt signals directly to an Ethernet Modbus/TCP 10/100 network. The six-channel, inch-wide I/O modules operate independently of any buscoupler or I/O rack, nor do they require any special system power supply. These self-contained I/O modules are more cost and space-efficient for applications requiring fewer I/O channels by offering lower startup costs and higher density mounting. Setup is also faster and easier with embedded web pages allowing configuration using any standard web browser. No other software is required. Priced at only $500 for a four-input unit or $650 for six inputs, they are very cost-effective for applications that need to monitor a small quantity of thermocouples per site. Each module is only an inch wide with the highest density footprint available for compact mounting on DIN-rails. Flexible power requirements support operation on 15-36V DC power supplies.

Each unit accepts thermocouple/millivolt inputs with user-selectable ranges for Type J, K, T, R, S, E, B, or N sensors and bipolar ±100mV or ±1V DC signals. The 16-bit sigma-delta A/D converters and built-in CJC sensors ensure highly accurate measurements. Three-way 1500V AC isolation between the input, network and power circuits protects against surges and ground loops.

For more information download Acromag's Ethernet I/O brochure (pdf, 918 KB).

Visit www.acromag.com for more information or call 248-624-1541. To request product literature or our 2003 catalog, click here.

Ask the I/O Experts
How can I measure a force with a bridge sensitivity that exceeds the configurable 10mV/V limit of Acromag’s 851T load cell transmitter?

Acromag limits the 851T transmitters’s sensitivity to 10mV/V for superior precision in common load cell applications with lower values. However, higher sensitivities can be accommodated because the 851T has an adjustable excitation and allows the input scale to be over-ranged up to 125%.

See full example application.

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To request a copy of our 200-page Signal Conditioning and Distibuted I/O Solutions Product Catalog e-mail us at sales@acromag.com or use our on-line form.

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Acromag, Inc.
30765 S. Wixom Rd.
P.O. Box 437
Wixom, Michigan 48393-7037
Phone: 248-624-1541
Fax: 248-624-9234
e-mail: sales@acromag.com
www.acromag.com