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July 15, 2008 -
Suited for non-isolated 2-wire transmitters, 8B42 Modules supply power to current transmitter, then isolate, filter, and amplify resulting process current input signal and provide analog voltage output. Signal filtering is accomplished with 3-pole low-pass filter. Housed in miniature package measuring 1.11 x 1.65 x 0.40 in., modules operate from -40 to +85°C with 1,500 Vrms transformer isolation, up to 40 Vrms field-side protection, and ANSI/IEEE C37.90.1 transient protection.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Dataforth Adds 2-Wire Transmitter Interface Modules to 8B Family of Isolated Analog Signal Conditioners
Dataforth Corporation of Tucson, Arizona, has just introduced the latest addition to its wide-ranging family of miniature SensorLex® 8B isolated analog signal conditioners: the 8B42 2-wire transmitter interface modules.
Designed specifically to provide isolation for non-isolated 2-wire transmitters, each 8B42 module supplies power to a current transmitter, then isolates, filters, and amplifies the resulting process current input signal and provides an analog voltage output. To ensure high accuracy, current to voltage conversion takes place internally in the module.
Signal filtering in the 8B42 is accomplished with a 3-pole low-pass filter optimized for time and frequency response.
Other key 8B42 features include:
o ±0.05% Accuracy (Typical)
o ±0.02% Linearity
o 1500Vrms Transformer Isolation & up to 40Vrms Field-Side Protection
o ANSI/IEEE C37.90.1 Transient Protection
o 5V Power (30mA Typical)
o +12VDC Loop Supply
o High-Level Voltage Outputs
o Low Output Noise
o Low Drift with Ambient Temperature
o -40°C to +85°C Operating Temperature
o CE Compliant
o UL Listing Pending
o Mix and Match Module Types on Backpanel
Like all modules in the SensorLex 8B family, the 8B42 ensures fully functional Instrument Class® performance in a miniature package measuring only 1.11" x 1.65" x 0.40" (28.1mm x 41.9mm x 10.2mm). The small size makes the 8B ideal for embedded or portable applications such as mobile test stands, COTS military and defense applications, miniaturized security and surveillance systems, and embedded process controls for semiconductor manufacturing equipment.
The 8B42 modules are designed for installation in Class I, Division 2 hazardous locations. The modules are fully encapsulated and thus have a high level of immunity to environmental noise.
Operation and storage temperature for the 8B is -40°C to +85°C, and relative humidity range is zero to 95% noncondensing. All models are CE Compliant and meet the requirements of EN61000-6-4 (radiated/conducted emissions) and EN61000-6-2 (ESD/RF/EFT immunity). For operation in hazardous environments, North American Class I, Division 2, and European Group II, Category 3, approvals are pending.
Originally developed in response to customer requests worldwide for smaller, lower cost isolated signal conditioners, Dataforth's SensorLex® 8B family has grown to include 17 family groups with a total of 102 modules that interface to a wide variety of analog signals such as volt, millivolt, current, temperature (thermocouple and RTD), position, frequency, and strain measuring devices.
Housed in a solid, potted thermoplastic plug-in-the-panel package with flammability rating of UL-94 V-0, the 8B family of isolated signal conditioners is specifically designed to protect user equipment, while reducing electrical noise and enabling convenient system expansion and repair. All 8B modules offer dimensional stability over temperature, chemical resistance, and excellent stability over time; they do not require recalibration.
Design-in accessories for the 8B line include a selection of standard and DIN backpanels (1-, 2-, 4-, 8-, and 16-channel) that provide screw-terminal inputs and outputs as well as a DB25 header connector that connects 8B outputs to a user's data acquisition system. The DB25 header can be matched with 1-, 2-, or 7-meter cables. A power supply module in the same 8B form-factor is offered for input voltages of 7VDC to 34VDC and provides 5VDC output at 2A to power any combination of 8B signal conditioners.
Dataforth Corporation was established in 1984 and is a worldwide leader in the design and manufacture of signal conditioning, data acquisition, and data communication products for industrial and institutional markets.
For additional information, call 800-444-7644 toll-free, e-mail sales@dataforth.com, or visit our website at http://www.dataforth.com/. Company Information: Name: Dataforth Corp. Address: 3331 E. Hemisphere Loop City: Tucson State: AZ ZIP: 85706 Country: USA Phone: 800-843-5538 FAX: 520-741-0762 http://www.dataforth.com
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