ACI ARM2 : Analog Input(VDC or mA), Dual Analog Output (mA), Analog Rescaling Module (Signal Splitter)
The ARM2 is an interface device that takes a single analog (voltage or current) signal and splits it into two DC non-isolated current sourcing outputs that can be adjusted. Its primary use is as a signal splitter, with both outputs always scaled identically and tracking each other. The device offers fine adjustments to output ranges through top-adjust trimmer potentiometers, with the ability to attenuate the input signal by 100%. It also provides adjustable gain and offset, allowing gain adjustments from 1 to 20 times the input and the option to invert the input signal. The ARM2 includes a regulated 23 VDC power supply output for sensor power and can accept resistance inputs using voltage divider applications.
Applications for the ARM2 include signal loop monitoring, converting resistance to current, voltage to current, and current to current, as well as adjusting sensor ranges, enhancing analog input resolution, signal inversion, and adapting non-compatible signals.
Specifications
| Supply Voltage: | 22.8 to 30 VDC, 21.6 to 26.4 VAC |
| Supply Current: | 100 mA maximum |
| Input Voltage Signal Range (@ Impedance): | 0-35 VDC @ 1,000,000Ω |
| Input Current Signal Range (@ Impedance): | 0 to 44 mA @ 250Ω |
| Input Resistance Signal Range: | 0 to 500,000Ω |
| Field Adjustable “Operate” Range: | Multi-turn potentiometers |
| Output Current Adjustable Signal Ranges: | Signal Gain 1 to 20 times (nominal) depending on input value |
| Accuracy: | Less than or equal to 1% of output span over full temperature range when using 1:1 input to output | Accuracy is calibration dependent over full temperature range |
| Output Signal Attenuation: | 0 to 100% |
| Output Signal Offset: | 0.25 to 20 VDC |
| Output Signal Inversion (RA): | 20 to 0.25 VDC (nominal) |
| Output Current Signal Load: | 750Ω @ 20 mA |
| Regulated Power Output (User): | 23 VDC nominal @ 24 VAC Power Supply, 30 mA maximum |
| Connections: | 45° Captive screw Terminal Blocks |
| Wire Size: | 12 (3.31 mm2) to 22 AWG (0.33 mm2) |
| Terminal Block Torque Rating: | 0.5 Nm (Minimum); 0.6 Nm (Maximum) |
| Operating Temperature Range: | 35 to 120°F (1.7 to 48.9°C) |
| Operating Humidity Range: | 10 to 95% non-condensing |
| Storage Temperature Range: | -20 to 150°F (-28.9 to 65.5°C) |
| Snaptrack Material: | Polyvinyl Chloride (PVC) |
| Snaptrack Flammability Rating: | UL94 V-0 |
| Product Dimensions: | (L) 3.69” (W) 2.17” (H) 1.00” (93.73 x 55.12 x 25.54 mm) |
| Product Weight: | 0.231 lbs. (0.104 Kg) |
| Agency Approvals: | RoHS2, WEEE |
Data Sheets
- Input Signal:
- Analog
- Output Signal:
- Analog
- Guage:
- No Gauge
- Failsafe:
- No Failsafe
- Valves:
- None
