Signal conditioner with CAN Bus

2 Channel intelligent signal conditioner (strain gauge amplifier) with CAN bus and logic output


The A2C-SG is a signal conditioner / strain gauge amplifier that measures mV inputs. It is ideal to interfacing to strain gauges or other type of bridges. 2 channels are available to simultaneously measure two strain strain gauges. The sensor communicates the measurement to a host via CAN Bus, using a standard M12 connector which is also used in J1939 networks. The A2C-SG contains a high performance 24bit analogue to digital converter and and high performance DSP processor. The A2C-SG can be programmed to report strain or mV. Alarms can be programmed to trigger when a given threshold limit is passed. After initial programming the sensor can be used in a standalone mode without any CAN bus connected. On an alarm event the logic output is activated, which can be used to drive a relay or plc input. An optional USB programmer simplifies programming, and no knowledge of CAN bus communication is required.


By incorporating a logic electric output, the sensor is able to operate without CAN bus communication and simply trigger the output when a predetermined threshold has been passed. No prior knowledge of CAN bus interface is required, simply attach the sensor to the USB programmer and setup the sensor. Once setup, it will run without CAN bus.

The following parameters are some of which can be programmed to trigger the logical output.

  • Programmable alarms for strain
  • Programmable alarms for mV input
By using a high performance DSP this is more than a simple strain gauge amplifier

For each channel the following information can be requested over the CAN-Bus:

  • Strain
  • mV
  • RMS value of strain / mV
  • Minimum strain since last reset or last data request
  • Maximum strain since last reset or last data request
  • FFT analysis on signal over an adjustable time period
  • Programmable Bandwidth from 1Hz to 1000Hz
  • Programmable alarms for strain / mV on both channels
  • Heartbeat CAN messages with programmable periods
  • Periodic CAN messages with programmable data and time periods
  • Logic alarm output for standalone mode without the use of CAN bus
  • Low power consumption
  • Durable aluminum / stainless steel housing
  • Software upgradable via CAN bus


Structural analysis of equipment / machines

  • Bending moment in structural members
  • Torsion in structural members
  • Eigen frequency of structural members

Datasheets and Synopsis

Download Complete Datasheet

3D files

No 3D drawings are available online.
Please contact us for more information




New improved version!
Strain gauge amplier with CAN Bus standard base plate

Standard base plate

Signal conditioner strain gauge amplifier with CAN Bus. Shown with standard back plate

Standard base plate

Signal conditioner strain gauge amplifier with CAN Bus shown with rectangular base plate

Rectangular base plate

Signal conditioner strain gauge amplifier with CAN Bus. Shown with rectangular back plate

Rectangular base plate

SimplicityUse the U2C programmer

No prior knowledge of CAN bus communication is required! You can check the U2C programmer and software here:

Program using U2C

Connect the U2C to your PC after installing the drivers and software. Connect the A2CTRI to the U2C and apply power.

Use free software

Using the free software, set the mode of operation and the alarm thresholds. View real time data from the sensor and have it shown graphically.


Install the sensor in its application and verify that everything works as it should. It is still possible to connect the U2C and log the real world data, which can be used for analysis.