Description
The ADU70 USB Load Cell (Strain Gauge) Interface enables wheatstone bridge measurements with 24-bit resolution at sample rates up to 150Hz.
The internally isolated excitation voltage of 5.000V is suitable for most wheatstone bridge based strain gauges.
This low-cost USB Load Cell (Strain Gauge) Interface is easy to use with VB, VB.NET, Visual C++,
C , MATLAB, LABView etc. via standard HID drivers included with Windows.
A mini-driver (DLL) is also provided allowing control using standard ASCII commands using familiar readfile, writefile commands.
The ADU70 includes a 10' USB cable and is available in a flange mount enclosure with a DIN rail mount option.
Download the ADU 70 Quick Start Guide
Download the ADU 70 User Manual
Download
ADU70 3D STEP files for FLANGE or DIN mounting types.
Key Features
- USB load cell (Strain Gauge) interface with precision bridge excitation source.
- Ratiometric configuration provides outstanding absolute( .01%) and relative (.003%) accuracy.
- 24 bit resolution
- Internal isolated bridge excitation supply derived from USB bus.
- Programmable gain from 1 to 128.
- Programmable sample rate up to 150Hz.
- Programmable buffer for high impedance sources.
- Programmable CHOP function to minimize offset and offset drift.
- 2500V Isolation
- Conformally coated sensing circuitry.
- High retention USB Connector
- CE Marked
- Bi-colour LED status indicator.
- High quality cage-clamp type terminal blocks.
- Uses standard HID drivers included with Windows 98SE,2000,XP,7,8,10 32-bit or 64-bit
- Mini-driver (DLL) provided. See Programming Page for details
- Meets IEC61000-4-2 ESD protection for USB port.
- Available in flange (standard) or DIN rail mount.
Typical Applications
- Force/Displacement Measurement
- Truck Weigh Station
- Point-of-Sale Weight Measurement
- SCADA Systems
- Kiosk Automation
- OEM Instruments Embedded Control
Technical Specification
Supply Voltage
NONE (Bus Powered)
USB Supply Current
70mA Typical 100mA Max
Operating Temperature
-25C Min to 85C Max
Load Cell Input (Ratiometric Bridge Measurement)
Total Absolute Unadjusted Error
+/- 0.02%FSR MAX @ 25C
Relative Error
+/- 0.003% FSR MAX @ 25C
Temperature Stability
+/- 3 ppm FSR/Degree C
Bridge Resistance
200 ohms or greater
Programmable Input Ranges
+/- 5V, 625mV, 312.5mV, 156.2mV, 78.125mV, 39.06mV
Bipolar Voltage Input (Absolute Voltage Measurement )
Total Absolute Unadjusted Error
+/- 0.05% FSR MAX @ 25C
Temperature Stability
+/- 10 ppm FSR/Degree C
Input Current
Buffered - +/- 3nA
Unbuffered - +/- 8uA
(Varies with voltage GAIN=1)
Programmable Input Ranges
+/- 5V, 625mV, 312.5mV, 156.2mV, 78.125mV, 39.06mV
Internal Bridge Excitation
5.000 Volt Bridge Excitation
Excitation Current
30mA Max.
Flange Mount (STANDARD), DIN Rail
Pricing
IMPORTANT: Specify mounting option when ordering.-FLANGE(standard) or -DIN . See Mounting Options for details.
Mounting Options
