#21

Out of Production Hardware / Re: shortracket 90

Last post by Al1234 - January 29, 2026, 11:01:21 AM

Hi thank you for both suggestions. I have toneohm 950 with shop probes and oem probes.
I got the shortracker 90 without probe and I am getting tired of looking at it. I'ld like to get it working.

Do you know if I-prober 520 can help with a hi resistance short between 525-750 ohms? 750 when redhead is on + supply, 525 when red lead is on - or ground...

Toneohm 950 and thermal camera (Flir T400), did not help.
My favorite the ProTrack shows kind of a bad diode or a bad zener diode accross + & - of a 5vdc on all ICs supply on this bus. Only if I had a good baord to compare with... But new board is 3.8k and used over $1k. Good thing this is a shops board so I am not in a hurry.

I appreciate your help and replys. Thank you jvthorsley

#22

Out of Production Hardware / Re: shortracket 90

Last post by jvthorsley - January 28, 2026, 09:11:36 AM

Hi
This looks like a Current Probe.
A Fluxgate Magnetometer Probe.
See details I have attached .
Very useful for non-contact probing & measuring current on a switch mode power supply.
And for tracing current in copper track on a circuit board.
Its the Aim Instruments I-Prober 520.
It attaches to an Oscilloscope so you can see what's happening on a switch mode P.S.U.
And make measurements.

#23

Out of Production Hardware / Re: shortracket 90

Last post by Al1234 - January 28, 2026, 07:33:02 AM

Hi, thanks for ykur reply,
No, it's this one
https://share.google/H3odMpVR37fEK7fJ9

#24

Out of Production Hardware / Re: shortracket 90

Last post by jvthorsley - January 28, 2026, 06:54:05 AM

Hi
Are you referring one of the Polar ToneOhm 950 leads?

#25

Out of Production Hardware / shortracket 90

Last post by Al1234 - January 27, 2026, 09:12:19 PM

Hi everyone, I was wondering if anyone has information on the shortracker 90 lead. I was watching a video on it and it suggested that it follows temperature! is the tip a temperature sensor or an electromagnetic sensor like current tracer or circuit trackers?
would it be too much trouble to ask for the schematics of the shortracker lead. Please

#26

Current Software - Huntron Workstation 4.X / Re: Workstation Shorts Test.

Last post by jvthorsley - January 19, 2026, 02:51:11 PM

Hi Admin or Tech Support or even JB & Alan.
As said on this Forum I work on a lot of agricultural electronics and if Farmers your side of the pond leave all there expensive Combine Harvesters & Forage Harvesters out in all weathers as Farmers do here in Old Blighty / U.K. They shouldn't be surprised when things go wrong!
The circuit boards on this sort of Agri equipment get wet to say the least.
Plus a few Rats & Mice peeing on everything.  Urine has a low electrical resistance.
This can cause short circuits under connectors.
So to run you shorts test at the full resistance range that a Tracker can handle would be of great assistance in tracing problems or problems that are likely to develop.

#27

Current Software - Huntron Workstation 4.X / Re: Workstation Shorts Test.

Last post by admin - January 19, 2026, 08:36:52 AM

Hi James,

It appears based on your testing that 94 Ohms is the maximum allowable setting. We do have it on our software update list to improve the Shorts test feature sometime in the future.

#28

Current Software - Huntron Workstation 4.X / Workstation Shorts Test.

Last post by jvthorsley - January 18, 2026, 06:51:09 AM

The manual for Workstation 4.3 doesn't appear to be to specific as to the maximum resistance range possible on the Shorts Test.
I may have this wrong and if so hope JB or Alan Howard (Huntron Tech Support) will let me know.
I did some tests to find the maximum resistance that could be set to show up as a short.
This test is very thorough and checks every pin against all the other pins for a short.
No need to set a COM pin.
The maximum shorts value is set in Tools / General Settings.
To find the maximum accepted value I tried various resistance settings by altering the resistance value in Tools settings and putting a Resistor across two pins (3 & 4)  on a connector as shown on attached photo see IMG_6803.JPG.
I found the maximum allowable setting in tools was 94 Ohms.
As shown on photo IMG_6802.JPG.
And with a 100 Ohms Resistor across the two pins the Shorts Test picked it up.
For some reason and hope JB or Alan Howard can explain this anything above a setting of 94 Ohms resulted in all 25 pins as showing shorted together. As shown on IMG_6801.JPG.
In this case the test was on 25-way SIL connector.
With the connector not plugged into anything and the other end of the ribbon cable plugged directly into my 3200S IDC connector plug.
Ideally I would like this test to look for shorts up to 150 K Ohms or higher.
To achieve this sort of high resistance test I use an adaptor as discussed on a previous message on this Forum.
Or as also discussed on this Forum connect the output from my 3200S to a DMM.
And with this method resistance as high as required can be measured.

#29

Current Software - Huntron Workstation 4.X / Workstation 4.3 does not run D...

Last post by jvthorsley - January 12, 2026, 06:13:32 AM

I have a DMM34410A connected to my 3200S Tracker.
I use it as discussed on this Forum to make measurements with Workstation with my 3200S.
And works exactly as I want it to.
But if I go into Tools, Maintenance, DMM34410A Diagnostics.
I get as shown below "Diagnostics not implemented".
What is the reason for this?
You need to magnify the individual JPG's to read the text.

#30

Current Software - Huntron Workstation 4.X / Re: Beep mode.

Last post by jvthorsley - January 12, 2026, 05:44:13 AM

Hi Curtis
And Happy New Year to you.
I'm not sure what you mean by saying "In the Diagnostics you can select the type of display for your 3200S".
Are you saying that there is a setting in Diagnostics that allows me to run the 3200S without Workstation.
And lets me set V, R, & F and then set the deviation / tolerance window.
And then connecting COM to a known good PCB and faulty PCB.
And then using the A & B channels manually probe know good & faulty PCB's.
And any difference from the set tolerance value get a beep from the 3200S.
Thereby making it not necessary to look away / look up at the signatures on the display.