Advantech ADAM-4012 1-ch Analog Input Module

Advantech's analog input modules use a microprocessor-controlled integrating A/D converter to convert sensor voltage, or current signals into digital data. The digital data is then translated into either engineering units, twos complement hexadecimal format or percentage of full-scale range (FSR) according to the module’s configuration.

When prompted by the host computer, the data is sent through a standard RS-485 interface. The Analog Input Modules offer signal conditioning, A/D conversion, ranging, and RS-485 digital communication functions. They protect your equipment from ground loops and power surges by providing opto-isolation of the A/D input and transformer based isolation up to 3000 V DC.

• Power Consumption: 1.2 W @ 24 VDC
• Supported Protocols: ASCII command
  Analog Input
• Channels: 1
• Input Impedance: Voltage: 20 MΩ
  Current: 125 Ω (Added
  by user)
• Input Type: mV, V or mA
• Input Range: ±150 mV, ±500 mV, ±1 V,
  ±5 V, ±10 V and ±20 mA
• Accuracy Voltage mode: ±0.1% or better
  Current mode: ±0.2% or better
• Span Drift: ±25 ppm/°C
• Zero Drift: ±6 μV/°C
  Digital Input
• Channels 1
  Logic level 0: 1 V max.
  Logic level 1: 3.5 ~ 30 V 
  pull up current: 0.5 mA, 10 kΩ resistor to 5 V
• Event Counter Max. input freq.: 50 Hz
  Min. input pulse width: 1 msec.
  Digital Output
• Channels 2, open collector to 30 V,
  30 mA max. load
• Power Dissipation: 300 mW