The DRA-ACT-2I AND DRA-ACT-2V Series are isolated 2-wire loop-powered ac current and ac voltage input DIN rail mount signal conditioners that convert the measured input into a proportional, linear and highly accurate 4-20 mA output current. The DRA-ACT-2I Series of ac current input models includes models for 0 to1 Aac and 0 to5 Aac inputs with 4 to20 mA output. The DRA-ACT-2V Series of ac voltage input models includes models for 0 to150 Vac, 0 to250 Vac and 0 to400 Vac inputs again with 4 to 20 mA output.
For complete safety, an internal transformer isolates the signal conditioner input from the output thus enabling these units to withstand large momentary inputs. Complete input to output isolation, high surge current capacity and high output signal-to-noise ratio make these signal conditioners highly immune to ground loop signals and RFI. These transmitters are also equipped with a “test” terminal which facilitates monitoring of the output current by measuring the voltage drop across an internal 10 Ohm resistor without disturbing the 4 to 20 mA process loop.
GENERAL Accuracy: ±0.1% of span typical (2-100% of span) for pure sinusoidal input Temperature Stability: ±0.015% of span /1°C CMR: 122 dB typical; 117 dB min Response Time: 220 msec (0-98%) Power Supply: 10-32 Vdc Loop Resistance: Rmax (ohms) = (Vsupply 10)/0.02
SUPPLY AND LOAD Variation Effect: < 0.03% for full change Test Terminal: 40 to 200 mV represents 4 to 20 mA Output Ripple: better than 0.1% of span RMS Frequency: 40 to 500 Hz Output: 4 to 20 mA Zero Adjust: ±35% min Span Adjust: ±25% min Operating Ambient: 32 to 158°F (0 to 70°C); 5 to 95% RH, noncondensing Storage Temperature: -13 to 185°F (-25 to 85°C) Enclosure: polycarbonate Mounting: standard 35 mm DIN rail or wall mount Dimensions: 2.87" H x 1.28" W x 4.49" D (73 x 32.5 x 114 mm) Weight: 0.5 lb (0.2 kg)
DRA-ACT-2I SERIES (AC CURRENT INPUT) Input: 0 to 1 Aac, 0 to 5 Aac Input Power Consumption: 0.26 VA at 5 Aac input Inrush Current: 40 Aac RMS max for 8 sec every 10 min; 75 Aac RMS max for 1 sec every 10 min DRA-ACT-2V (AC VOLTAGE INPUT) Input: 0 to 150 Vac, 0 to 250 Vac. 0 to 400 Vac Input Power Consumption: 0.3 VA at 120 Vac input; 1.4 VA at 230 Vac input Isolation: 2.5 KV RMS for one minute