Analog Input Module Type 1 (AIN-1)

With the introduction of our new product line (Chameleon+), 2023 (or while supplies last) marks the end of production for legacy Chameleon (EOL Announcement). We will continue to provide technical support on all EOL products. In addition, we will continue to repair the EOL products for as long as replacement parts can be acquired.

Features and Benefits

  • Analog Signal Data Acquisition
  • Can be used as Temperature Multiplexer
  • Versatile I/O (4-20mA, 0-10V, RTD, thermocouple, etc.)
  • Fully Sealed Enclosure (NEMA 4X, 6, 13 Protection)
  • -40°C to +65°C (-40°F to +149°F) Operating Range
  • MIL-S-901D Grade A for High Impact Shock
  • MIL-STD-167B for Vibration
  • MIL-STD-461F for Electro-Magnetic Interference
  • Powerful and easy-to-use graphical programming
  • Supports Hot Swapping
  • Supports redundant inputs

The Chameleon Analog Input Module (AIN-1) provides a versatile input suite capable of reading a variety of signals, including voltage, current, and resistance (providing RTD and thermocouple support). The module has 14 input channels that can be individually configured in software to read voltage, current, or resistance with no reconfiguration or rewiring required.

Powered by an ARM processor with onboard RAM and flash memory, the AIN-1 provides sufficient computational power to handle the most demanding applications. The AIN-1 embedded firmware is stored in its flash memory and is upgradeable: you can rest assured that the hardware investment you make in Chameleon will not become obsolete.

Using Fairmount Automation’s intuitive and easy-to-use graphical programming package (Design Pad) you can develop sophisticated data processing schemes for the AIN-1 in a matter of hours—without any prior programming experience. Programming the device entails “drawing” a signal processing scheme using a vast array of configurable function blocks. Once complete, configuration programs are downloaded to the unit via a wireless IR interface.

Each AIN-1 provides internal data logging as well as an integral user-interface, including four four-digit numeric displays and eight status-indication LEDs. Each display set has an associated tag holder for signal labeling.

As with all Chameleon modules, the AIN-1 offers unequaled ruggedness. It is specifically designed for sustained operation in severe environments, including those characterized by extreme shock, vibration, electro-magnetic interference, temperature, and/or humidity. Its fully-sealed enclosure (sealing end-caps not pictured) ensures long-lasting operation in the grimiest settings. In fact, Chameleon modules can operate fully submerged.

Operating Ambient Temperature Range -40°C to 65°C
Storage/Transport Ambient Temperature Range -40°C to 85°C
High Impact Shock MIL-S-901D, Grade A
Mechanical Vibration MIL-STD-167B, 0-50Hz
Electro-Magnetic Interference MIL-STD-461F
Facial/Housing Protection NEMA 1,2,4,4X,5,6,12,12K,13
Quantity / Resolution 14 Channels / 16 Bits Minimum
Sampling Rate 10Hz typical (varies on Mode and number of channels used)
Current Input Ranges Supported 0-20mA, 4-20mA
Current Input Accuracy

+/-40uA at 25°C, +/-100uA Over Temperature

Standard Voltage Input Ranges Supported 0-20V, 0-10V, 0-5V, 1-5V, 0-2.5V
Standard Voltage Input Range Accuracy +/-36mV at 25°C, +/-86mV Over Temperature
Low Voltage Input Ranges Supported 0-1V, 0-500mV, 0-250mV, 0-100mV
Low Voltage Input Range Accuracy +/-2mV at 25°C, +/-5mV Over Temperature
Resistance Input Range Supported 0-2400Ω
Resistance Input Range Accuracy +/-2.4 or +/-0.4% of Reading (whichever is smaller) Over Temperature
RTD Support 3 Wire, 100Ω Platinum (European or American curve), 120Ω Nickel, or Custom
RTD Accuracy

+/- 1°C Over Temperature

Thermocouple Support Type E, J, K, R, S, or T
Maximum Power Consumption 3.9W + 0.03 W/mA x (current draw from aux. power source)
Maximum Allowable Auxiliary Output Current 400mA at 24VDC
Real-Time Clock Battery Life (Minimum; No power applied, 25°C) 10 Years
Supported Cable Diameters Two glands 0.35”-0.51”; six glands 0.31”-0.41”
Supported Wire Gauges 16-28 AWG
Digital Readouts Eight user-programmable three-color (red/yellow/green) LEDs with label holders
Analog Readouts Four user-programmable 4-digit, 7-segmentnumeric displays with label holders
Status Readout One three-color (red/yellow/green) LED Indicator
IR Wireless Interface


Weight 2.25 lbs
Front Panel Dimensions 4” W x 6” L
Enclosure Height 3″ H

The following part numbers can be used when ordering the Analog Input Module (AIN-1).

Fairmount Part Number Description
01012-013 AIN-1 with Gray Enclosure
01012-313 AIN-1 with Black Enclosure (without Stuffing Tubes)
11066-200 AIN-1 Active Board and Gray Cover
11066-250 AIN-1 Active Board and Black Cover
11066-260 AIN-1 Active Board and Metal Cover
01014-013 AIN-1 Full-Size Gray Enclosure with Wiring Hub Assembly
01014-313 AIN-1 Full-Size Black Enclosure and Wiring Hub Assembly (without Stuffing Tubes)
11067-100 AIN-1 Wiring Hub Assembly