Recommended DVA meter or DVA adapter for a Fluke digital meter

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,683
You can make one: 600V 1 amp. diode, wired with the anode to the signal source and cathode to the output wire (where you attach your + meter lead) which also contains a capacitor and bleed resistor. Select a meter DC range that exceeds the value of the voltage you will be measuring. Values aren't critical. Bleed resistor is usually in Megohms for discharging the capacitor after the measurement. Capacitor needs to be 600V min. also and enough capacitance to offer a flat line of output voltage to the meter DC inputs......0.47 ufd., 1 kv ceramic would work nicely.

Bottom of the cap and res. are tied to equipment ground (-dc) and the neg. meter lead is attached there also.

The reason why A Digital Voltmeter Attachment is necessary is because the pulses are in microseconds and the rest time is in multimilliseconds. The signals come and go before the meter has time to catch them with out something to store the little pulses and allow them to build up to a readable level. The resistor just bleeds off the capacitor once measurements are finished.
 

Nordin

Commander
Joined
Jun 12, 2010
Messages
2,566
If you are a bit handy do as Texasmark says, build your DVA adapter by your self.
Google DVA adapter at internet and you will find many schematics for a DVA adapter.
It is very simple, just a couple of components.
I have made three of them by myself, works great.
If you prefer to buy one, you have to pay about 50 dollars and up.
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,147
FLUKE does not sale a meter with built in DVA adapter
A number of Fluke units have a “fast” min/max peak function. Others have min/max peak recording functions.

Certainly cheaper to go with a analog meter and an adapter, but Fluke does offer the functionality on several of its models

 
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