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DI-100U/DI-1000U USB Load Cell Interfaces

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load cell highlights


  • Works with bridge type devices with mV/V outputs such as resistive load cells, torque sensors etc. as well as with analog devices with -5V to +5V DC outputs.
  • DI-100U works with devices up to 3 mV/V with a fixed gain setting
  • DI-1000U works with devices up to 2 to 25 mV/V with a variable gain setting
  • DI-1000ZP provides optional wireless connectivity with a IEEE 802.15.4 wireless protocol
  • DI-1000UHS-1K provides a device with a high data output rate of greater than 1 KHz
  • If you are looking to connect your resistive load cell to a PLC or DAQ, you may want to take a look at our AI-1000 analog load cell interface which provides a single channel signal conditioner that outputs a 0.5V -4.5V DC signal proportional to applied loads

Minimum Recommended PC requirements

  • Windows compatible PC (XP/Vista/7/8)
  • 250 GB disk space
  • 2 GB memory
  • Dual Core
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Customers who bought this load cell also bought:

  • UX-100 USB extender cables for 15 additional feet from the DI-100U or DI-1000U USB load cell interface
  • Optional USB Relays that can be programmed to open or close based on force input from load cell to PC
  • Optional LoadVUE load cell software to display, log and plot the force data from USB load cells

The DI-100 or DI-1000 Digital Load Cell Interface modules provide a simple, convenient method to convert existing millivolt output load cells into PC friendly USB Load Cells! Just plug in your strain gauge load cell into one connector of our Digital Load Cell Interfaces and connect the USB port to a PC and you get a PC-ready load cell.

The DI-1000ZP offers a cordless rechargeable battery operated wireless solution for force measurement.

For dynamic measurements such as impact force measurement or for testing to failure you need at least 1 millisecond resolution or about 1000 samples per second. For those cases, use the DI-1000UHS-1K interfaces with your load cells.

The DI-1000U-5V can be used as a general purpose USB Data Acquisition system for use with sensors such as LVDTs, temperature sensors etc. that have a 0-5 V DC Output.

The DI-100U outputs a UART signal (TX,RX) which is converted to USB by our S2U Serial to USB adapter. The UART signal can be directly read by a microcontroller and commands can be sent to read from and write to the interface. Click here for an example on how to interface the DI-100U to an Arduino microcontroller.

Plug-and-Sense Load Measurement Using DI-100


Wireless Load Measurement using DI-1000ZP


Impact Force Measurement Using DI-1000HS-1K




Model DI-100U DI-1000U DI-1000U-5V DI-1000UHS-1K
Accuracy Class 0.1% 0.02% 0.02% 0.02%
Input Range 3 mV/V
(0-15 mV Span)
3 mV/V
(0-15 mV Span)
- 5V to +5V DC Span 3 mV/V
(0-15 mV Span)
ADC Resolution 16 bit 24 bit 24 bit 24 bit
Channels 1 1 1 1
Sampling rate 40 Hz (DI-100U)
275 Hz (D-100UHS)
80 Hz (DI-1000U)
16 Hz (DI-1000ZP)
500 Hz (DI-1000UHS)
80 Hz (DI-1000U)
16 Hz (DI-1000ZP)
500 Hz (DI-1000UHS)
Above 1000 Hz
Output Protocol UART (Tx, Rx) or USB (Virtual COM) using Serial to USB Dongle (S2U) USB (Virtual COM) USB (Virtual COM) USB (Virtual COM)
Wireless Option No Yes, DI-1000ZP Yes, DI-1000ZP No
Battery Option No Yes, DI-1000ZP Yes, DI-1000ZP No
Load Cell Compatibility 4 Wire 4 Wire & 6 Wire 4 Wire & 6 Wire 4 Wire & 6 Wire
Compatible Software LV-100,

USB Upgrade

Analog to Digital USB Output

Wireless Upgrade

Analog to Wireless Output

How it works

To start using one of these interface devices, simply connect the load cell to the terminal block on the interface device. Install the drivers provided on the software CD shipped with the product. Once installed, connect the USB connector to the PC via the USB port.

The load cell appears on the PC as a virtual COM port. Using a standard terminal emulator you can send commands to the sensor to display loads on screen. If you type the "?" command, you can see all the available commands on the device.

Before using the load cells to measure, you need to calibrate the interface device to work with YOUR load cell. If you purchased the interface device with a load cell from us, it will come pre-calibrated. If you bought it stand-alone, then either enter the calibration coefficient (typically 2 mV/V) into the interface device via ASCII commands or perform a two point calibration with a known weight. Once calibration is complete, you can view forces or weights in millipounds. Please refer to the manuals page for calibration quick start guides.

You can either display the data one at a time or display it in continuous operation mode. Alternatively, use our LoadVUE (for e.g. LV-1000) application to view/log/plot data on a PC.

If you wish to use this device with multiple resistive load cells - then we recommend that you use one Di-100/Di-1000 for each load cell. Then you can calibrate each interface device to its connected load cell and then sum the four individual readings on a PC to get the total load. Using this approach - you will avoid the need to calibrate the entire system via a summing/junction box.

Wiring Diagrams

DI-1000U Wiring Diagram for Load Cells

DI-1000U Wiring Diagram for Load Cells

DI-1000U-5V Wiring Digram for 0-5V Output Sensors
(eg. Displacement Sensors)

DI-1000U Wiring Digram for 0-5V Output Sensors

DI-100U Wiring Digram for Load Cells

DI-100U Wiring Digram for Load Cells
Product Details
C-Compression, T-Tension, U-Universal
SKU ADC Bits Output Protocol Wired/Wireless Range/Cable Max Data Rate Price Quantity
DI-1000U 24 USB (VCOM) Wired 6 ft 80 Hz Please Login to See Prices
DI-1000U-5V 24 USB (VCOM) WIred 6 ft 80 Hz Please Login to See Prices
DI-1000UHS 24 USB (VCOM) Wired 6ft 500 Hz Please Login to See Prices
DI-1000UHS-1K 24 USB (VCOM) Wired 6 ft Above 1000 Hz Please Login to See Prices
DI-1000ZP 24 IEEE 802.15.4 Wireless 1000 ft 16 Hz Please Login to See Prices
DI-100U 16 UART/USB (VCOM) WIred 6 ft 40 Hz Please Login to See Prices
DI-100UHS 16 USB (VCOM) Wired 6 ft 275 Hz Please Login to See Prices