Connecting a Triaxial Accelerometer

Volkan ARI

Posted on 25.12.2019 10:29


We recently purchased a Dytran 7533A4-20 model triaxial accelerometer. Sensor has the following wiring diagram.

And our MINITAURs has the following pin assignment for 9 pin dsub connection.

I've been told that I need to use 3 dsub connectors and wiring should be like;

  • DSub 1

Black => 4 (AGND)

Red => 1 (EXC+)

Green => 2 (IN+)

  • D-Sub 2

Yellow => 2 (IN+)

Black => 4 (AGND)

  • D-Sub 3

Blue => 2 (IN+)

Black => 4 (AGND)

But they told me that I need to be careful about excitation voltage because I'll be doing a unipolar excitation. First of all does my wiring is correct and what do they mean by unipolar excitation? Is there an option for that in Dewesoft?

Attached you can find the data sheet of accelerometer.

Kind Regards,


Matic Pevec
Customer Support Engineer
Posted on 27.12.2019 14:49

Dear Volkan,

You're wiring should be OK.

If you'll use unipolar excitation short wire Exc+ (pin 1) and Sns+ (pin 6) on DSUB1. Other two connectors should be OK as you stated.

With unipolar excitation wiring you have at least 5V, as Dytran sensor Supply Voltage is from 4V - 28V, this won't be problem.

If you have any other questions do not hesitate to contact us.

Best regards,

Matic Pevec

Volkan ARI

Posted on 30.12.2019 12:04

Hi Matic,

Thank you very much for your help.

Best Regards,


Login to reply to this topic. If you don't have account yet, you can signup for free account .