ADU72

USB To Current Input Iinterface (4-20mA, 0-20mA)

With 24V Loop Power Supply

(Similar Product:ADU71 USB to Current Output Interface)

Description

The ADU72 USB to Current Input interface enables measurement of 4-20mA and 0-20mA signals from standard process transmitters via a single USB connection. The ADU72 internally generated 24VDC loop supply eliminates the need for an external loop power supply allowing direct connection of 2-wire process transmitters. This low-cost USB to Current Input Interface is easy to use with VB, and Visual C++ or .NET via standard HID drivers included with Windows. A mini-driver (DLL)* is also provided, allowing control using standard ASCII commands using familiar readfile and writefile commands. The ADU72 includes a 10' USB cable and is available in a flange mount enclosure with a DIN rail mount option.

Click here to view sample connection diagrams.

Download the ADU72 Operating Commands

Download the ADU72 User Manual

Key Features

Technical Specification

ADU72 Features
Supply Voltage NONE (Bus Powered)
USB Supply Current (24V supply) 70mA Typical 100mA Max
USB Supply Current (external loop supply) 70mA Typical 100mA Max
Isolation 2500V
Operating Temperature -25C Min to 60C Max
Current Loop Input
Resolution 16 Bits
Range 0-20mA
Total Absolute Unadjusted Error +/- 0.05% FSR MAX
Full Scale Error +/- 0.03% FSR MIN
Temperature Stability +/- 50 ppm FSR/Degree C
Data Format HEX or DECIMAL or CURRENT
Max Recommended Sample Rate 500 s/s
Operating Environment Humidity 0 to 90% RH (non condensing)
Loop Compliance Voltage 4V
Internal Loop Power Supply
Voltage 24V Nominal
Isolation 2500V
Maximum Supply Current Output 35mA
Special Functions
Internal Loop Power Supply Internal 24VDC supply eliminates the need for an external loop power supply.
Mounting Options Flange Mount (STANDARD), DIN Rail

Pricing

ADU72 Qty 1-4

$169.00USD

ADU72 Qty 5-9

$158.00USD

ADU72 Qty 10+

$149.00USD

IMPORTANT: Specify mounting option when ordering.-FLANGE(standard) or -DIN . See Mounting Options for details.

Mounting Options

ADU72-FLANGE
Comes standard with ADU72.
ADU72-DIN
A $5 surcharge applies to the DIN RAIL option.