DC Current Transducers Series 920 & 921

Bi-directional Current Transducer Series 929

NEW RUGGED BI-DIRECTIONAL CURRENT TRANSDUCERS FROM AAC

OFFER ULTRA FAST BROADBAND RESPONSE AND SUPERIOR ACCURACY

Farmingdale, NY, June 2004 – American Aerospace Controls (AAC), has released a new series of bi-directional current transducers capable of accurately following extremely fast (DC and/or AC) current waveforms. The 929 Series consumes a very low 80 to 270 mW during operation, and provides an ultra fast response to complex current waveforms in the range of DC to 350 KHz, making the transducers ideally suited for demanding environments where high speed current monitoring is needed.

The new transducers offer superior accuracy (±1.0% FS) over a wide temperature

range -40°C to 85°C (-40°F to 185°F). The 929 Series features a compact, rugged, flame-retardant package that measures only 1.9” x 3.3” x 1.9” (48 mm x 84 mm x 48 mm) and weighs only 6 oz. maximum. The units can be powered by any DC voltage within the range of +10 Vdc to +34 Vdc, eliminating the need for a negative power source. During normal operation and at overloads up to ± 5,000 Adc, the transducer draws a maximum

of 8 mAdc. The unit’s input power connection can withstand a ±60 V transient power surge (T < 5 m-sec), and is reverse polarity and short circuit protected. The unit’s output is capable of following IGBT currents from DC to 350 KHz with an output load of 5 KΩ to infinity, and an output impedance of 25Ω.

The new transducers feature excellent environmental characteristics to endure harsh operational conditions. Internal circuitry is epoxy encapsulated to increase insulation (500 MΩ @ 500 V_DC), and to protect the unit from moisture and foreign contaminants. In addition, the transducer’s case is manufactured from a molded plastic that tolerates very high temperatures, meets the UL94V-0 flammability rating, and allows the 929 Series to withstand random vibration levels per MIL-STD-810F of 12.0 GRMS and shock pulses of 50 g.

The 929 Series is available in eight models with input current ranges from 0 Adc to

±50 Adc through 0 Adc to ±400 Adc. The transducers come standard with a five-pin terminal barrier and a 0.75” pass-through hole; optional six-pin connectors or nine-pin D-Sub connectors are also available.

For more information, please visit www.a-a-c.com/929-B.pdf

or contact

Greg D’Abramo,

Toll Free: (888) 873-8559 ext: 227

E-mail: greg@a-a-c.com.

American Aerospace Controls, Inc.

570 Smith Street, Farmingdale, NY 11735

Tel: (631) 694-5100 or (888) 873-8559

Fax: (631) 694-6739 Web: www.a-a-c.com.

DC Current Transducers Series 920 & 921

NEW COST-EFFECTIVE DC CURRENT TRANSDUCERS FROM

AAC OFFER TIGHTER ACCURACY OVER WIDER TEMPERATURE RANGE

Farmingdale, NY, September 2003 – American Aerospace Controls (AAC), has released a new series of DC current transducers that provide tighter accuracy to

1.0% FS for more stable operation over a wider temperature range of -40°C to 85°C, versus similar products with a temperature range of -20°C to 60°C .

The new Series 920 and Series 921 transducers automatically monitor system data remotely, making them ideal for local and remote power stations where feedback of operational data is required, such as in communications and cellular towers as well as in manufacturing process control systems.

The cost-effective transducers reduce labor costs both before and after installation. Each sensor uses only a two-wire connection, greatly simplifying installation, and the transducers’ automatic monitoring capabilities reduce the frequency of on-site inspections and related costs. Additionally, the new transducers incorporate a sensor yoke that opens and closes, versus a pass through-hole, making them suitable for use in updating older systems.

The Series 920 transducer is available in four models with input current ranges from

0 Adc to ±50 Adc through 0 Adc to ±125 Adc; the Series 921 transducers offers nine models with input current ranges from 0 Adc to ±200 Adc through 0 Adc to ±2,000 Adc. The new transducers are available in both closed-loop (Series 920) and open-loop (Series 921) configurations, come in a wide variety of supply range voltages from 18 V to 28 V, and feature reverse polarity protection. Normal current signal is 4 mAdc to

20 mAdc, with 24 mAdc typical at overload, and input to output isolation of 500 MΩ at 500 Vdc. The new transducers weigh only 14 oz. maximum and are encased in UL 94V-0 molded plastic.

For more information,

visit www.a-a-c.com/920-Stat.PDF and/or www.a-a-c.com/921-Stat.PDF