amp/volt gauges with hold function. Is this possible?

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Hi all,Just wondering if it would be possible to add volt/amp gauges to a welder with a hold function.  You can buy cheap digital volt gauges and amp gauges with a shunt on ebay.But they are useless without a hold function.  If they displayed the voltage/amps for 10 seconds after the trigger was released they would be useful.Anyone know a way around this?Thanks
Reply:My Fluke multi-meter and fluke ac/dc amp clamp both have hold/min/max function.Good for temporary  monitoring.Miller a/c-d/c Thunderbolt XLMillermatic 180 Purox O/ASmith Littletorch O/AHobart Champion Elite
Reply:I'm old but I just can't understand the need to know how many amps/volts are coming from a welder. The proof of any needed changes are right there in the puddle.                                                               MikeOl' Stonebreaker  "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:A flukescope 123 with data log can give you an accurate measure of volts, amps with a sold separately shunt.old Miller spectrum 625 Lincoln SP-135 T, CO2+0.025 wireMiller model 250 and WP-18V torchCraftsman 100amp AC/DC and WP-17V torchCentury 115-004 HF arc stabilizerHome made 4 transformer spot welderHome made alternator welder
Reply:Not really practical. The readings will fluctuate to much to be useful while welding.  You calibrate/test a welder by putting on a variable resistance load bank and adjust until you reach the welders rated output ex: 200 amps @ 25 VDC output or desired output if your calibrating the amperage settings.Idealarc 250AC 225SVictor OA-older made in USA stuff.And a crap ton of other stuff.
Reply:they are useful if the shop you are at requires you to be within a certain parameter,,,, not saying that is the correct way to run your machine, but it does seem to satisfy the man with an imagineers degree that controls your paycheck I guessTOOLS AND TOYSSMAW Mid States Inc. "MISSING LINK" 10-150 AMP Buzzer circa 1945ishSMAW Magic Wand 40-60 AMP Suitcase Buzzer circa 1939ishGMAW Hobart 210 IronmanOxy-Propane TorchMany other old and cold goodies"Rusty but Trusty"
Reply:I just did a mod to my lincoln where I disabled the capacitor bleed resistors and replaced them with a 24vdc computer fan.If I stop welding and lift my helmet I can see wat my arc voltage was. I know from the time I release the trigger to the time it takes me to get eyes on the volt meter the fan bleeds off 1 volt.Before the 40ohm resistor would bleed the capacitors residual charge down to 5 or 10 volts before I could look over at the volt meter.Is heavy modification even an option for you?old Miller spectrum 625 Lincoln SP-135 T, CO2+0.025 wireMiller model 250 and WP-18V torchCraftsman 100amp AC/DC and WP-17V torchCentury 115-004 HF arc stabilizerHome made 4 transformer spot welderHome made alternator welder
Reply:I am after a permanent fixed solution, so using a multimeter is not really an option.  I know a lot of people say don't bother, they are a waste of time.  I use them at work all the time.mad welder 4.  heavy modification is no problem for me.  I know my way around electricity and a soldering iron.
Reply:Maybe you can install a cheap 5 to 50 volt DC standalone digital volt meter (like I did) and disable bleed down resistors.That is the cheapest way to get a volt reading.For about $20 you can get a ebay volt/amp meter. The DC amp meter is on a mV shunt, your ground or gun power supply has to all be ran through the shunt.For me I use a fluke325 amp clamp with DC amp reading capability,  about $230 used on ebay. Not a good option if you dont need a portable non invasive DC amp measuring ability, I use it to check DC amps on all kinds of different machinery.old Miller spectrum 625 Lincoln SP-135 T, CO2+0.025 wireMiller model 250 and WP-18V torchCraftsman 100amp AC/DC and WP-17V torchCentury 115-004 HF arc stabilizerHome made 4 transformer spot welderHome made alternator welder
Reply:If your welder has an output gauge of some type you might record it with a video camera while welding. It would get you close.