PhidgetBridge 4-Input

The PhidgetBridge 4-Input is a load cell interface. It amplifies the signal from a load cell and provides a clean, stable digital value.

After connecting the interface to a computer through USB, you will be able to measure the output of up to four load cells. Applying calibration parameters will allow you to convert the raw load cell measurement into an accurate weight or force measurement.

Need a simple weight scale? Connect this interface to the Weighing Scale Kit and get started!

Features

• Maximum data rate of 1200Hz
• High-resolution 24-bit ADC (analog-to-digital converter)
• Configurable gain (1x, 8x, 16x, 32x, 64x, 128x)
• Four load cell inputs

Guides

Load Cell Guide

What is a load cell? Learn what a load cell is, how they work, and how you can use them with Phidgets.

Calibrating Load Cells

A step-by-step guide showing you how to calibrate a load cell with Phidgets.

Handling Out Of Range Errors

Your code should respond to Out of Range errors to provide uninterrupted data. 

Product Specifications

Board
Controlled By	USB (Mini-USB)
API Object Name	Bridge
Number of Bridge Inputs	4
Bridge Data Interval Min	* 1 ms
Bridge Data Interval Max	60000 ms
Bridge Resistance Minimum	75 Ω
Differential Voltage Resolution	24 bit
Electrical Properties
USB Voltage Min	4.5 V DC
USB Voltage Max	5.3 V DC
USB Speed	Full Speed
Current Consumption Min	5 mA
Current Consumption Max	** 15 mA
Input Voltage Limit Min	Ground + 0.25V DC
Input Voltage Limit Max	5V Supply - 0.25V DC
Physical Properties
Recommended Wire Size	16 - 26 AWG
Operating Temperature Min	-40 °C
Operating Temperature Max	80 °C
Customs Information
Canadian HS Export Code	8471.80.00
American HTS Import Code	8471.80.40.00
Country of Origin	CN (China)

* - Minimum data interval is 1ms for one opened channel. If two, three or four channels are opened simultaneously, the minimum data rate for each channel will be 4, 6 or 8ms respectively.

** - Maximum current consumption is the value listed above, plus the current consumed by the attached load cells, which varies depending on the sensor's construction.