ACI ARM : Analog Input, Analog Output, Analog Rescaling Module

The ARM is an analog rescaling module that transforms analog input signals (voltage or current) into different output signals. It offers flexibility through top-adjust trimmer potentiometers for precise range adjustments. The ARM can attenuate input signals by up to 100% and allows for adjustable gain and offset settings. Gain can range from 1 to 25 times the input signal, while the offset can be fine-tuned between 0 to +/- 20 VDC. It can also invert input signals. Additionally, the ARM provides a regulated 20 VDC power supply output for sensors and can accommodate resistance inputs via voltage dividers.

Applications of the ARM include converting resistance to current or voltage, voltage to current or voltage, current to current or voltage, adjusting sensor ranges, enhancing analog input resolution, signal inversion, and adapting non-compatible signals.

Specifications

Supply Voltage:	24 VAC or 24 VDC, (+/- 10%), 50/60 Hz
Supply Current:	200 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 Voltage Signal Range (@ Impedance):	0.25 VDC minimum to 20 VDC maximum
Output Current Adjustable Signal Ranges:	44 mA maximum, Signal Gain 1 to 25 times (nominal) depending on input value
Accuracy:	+/- 1%
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
Output Voltage Signal Load:	3300Ω @ 20 VDC +/- 10% / 400Ω @ 10 VDC +/- 10%
Regulated Power Output (User):	20 VDC +/- 10%, 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:	0.200 lbs. (0.0907 Kg)
Agency Approvals:	RoHS2, WEEE