Author Topic: PCB Designer for sensor board with 4-20ma output  (Read 6597 times)

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Offline pcbsensorTopic starter

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PCB Designer for sensor board with 4-20ma output
« on: April 23, 2024, 03:20:16 pm »
Hello,

I'm seeking a PCB designer to help with a brand new project to convert a voltage signal coming from a sensor into a proportional 4-20ma output. 
The PCB will be used in an industrial application.

The candidate should have knowledge of analog and digital circuits, power protection of the circuit, voltage step down and ideally have worked with integrating sensors in the past.

PM or e-mail me with your portfolio, CV or resume.  Also send your hourly rate, location and availability.

I look forward to speaking!

Thanks!
 

Offline alpelectronics

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Re: PCB Designer for sensor board with 4-20ma output
« Reply #1 on: April 23, 2024, 03:35:27 pm »
Pm sent.
 

Offline quince

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Re: PCB Designer for sensor board with 4-20ma output
« Reply #2 on: May 01, 2024, 06:02:14 am »
This is a ridiculous project to post given that you can literally buy it on Amazon: https://www.amazon.com/Current-Voltage-Converter-Module-Non-Isolated/dp/B07VTRVD75

If you are just trying to harvest CVs, try a little harder.
 

Offline tszaboo

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Re: PCB Designer for sensor board with 4-20ma output
« Reply #3 on: June 03, 2024, 08:46:24 am »
This is a ridiculous project to post given that you can literally buy it on Amazon: https://www.amazon.com/Current-Voltage-Converter-Module-Non-Isolated/dp/B07VTRVD75

If you are just trying to harvest CVs, try a little harder.
Sometimes you need thousands of the part. Or you need it in a different form factor. Or you need it certified for something that the original part isn't. There are dozens of reasons why someone would design the same project twice.
 

Offline AndyC_772

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Re: PCB Designer for sensor board with 4-20ma output
« Reply #4 on: June 03, 2024, 09:27:10 am »
Agreed. I've made a good living out of relatively uncomplicated sensor products which are nevertheless designed to be fit for a specific purpose - physically robust, wide temperature range, appropriate connectors and pinout etc.

This is a job I'd happily take on normally, but right now I'm afraid I'm far too busy with other projects - sorry.
 
The following users thanked this post: nctnico, sean0118

Offline nctnico

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Re: PCB Designer for sensor board with 4-20ma output
« Reply #5 on: June 03, 2024, 04:33:25 pm »
This is a ridiculous project to post given that you can literally buy it on Amazon: https://www.amazon.com/Current-Voltage-Converter-Module-Non-Isolated/dp/B07VTRVD75

If you are just trying to harvest CVs, try a little harder.
Sometimes you need thousands of the part. Or you need it in a different form factor. Or you need it certified for something that the original part isn't. There are dozens of reasons why someone would design the same project twice.
Agreed. Off-the-shelve products rarely match all the requirements. Especially when you need reliability and a stable source for 10 years.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline electronx

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Re: PCB Designer for sensor board with 4-20ma output
« Reply #6 on: August 21, 2024, 01:48:08 pm »
I have a 8-channel verified and system-tested design, it is absolutely bulletproof. If you are interested, contact me. Rather than designing pcb , question how reliable the system is and its certification.There is reverse voltage protection at the input. I can quickly offer more than one circuit that provides protection to the input, again from verified circuits.At the same time, if you need a chassis, I can send it to you as well.Products that are not examined for hours under a thermal camera are generally garbage.There is a tolerance of +-20 microamperes when PCB production is provided under the necessary conditions.The leakage current is at 1u ampere level.
« Last Edit: August 21, 2024, 02:00:51 pm by electronx »
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