Author Topic: Are there any Multimeters with FAST and variable threshold continuity test?  (Read 709 times)

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Offline djsbTopic starter

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Before I build my own variable threshold continuity test circuit, are there any Hand held or bench multimeters out there with it included?
It needs to be fast responding, so I can test pins quickly by dragging a test probe along one end of a multipole connector.
I'm looking for an excuse to buy a bench multimeter, but apart from the  Siglent SDM3065X, what others have this. Thanks.
David
Hertfordshire, UK
University Electronics Technician, London, PIC16/18, CCS PCM C, Arduino UNO, NANO,ESP32, KiCad V8+, Altium Designer 21.4.1, Alibre Design Expert 28 & FreeCAD beginner. LPKF S103,S62 PCB router Operator, Electronics instructor. Credited KiCad French to English translator
 

Offline nctnico

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Funny, we are in the same boat!
So far the only bench DMM model that -based on a review I watched- has fast continuity is the Uni-T 8805E (bench model). I have investigated around 12 bench DMMs (including the ones from Siglent). It is odd that the most simple function has been implemented so poorly on what usually are rather expensive pieces of equipment.
« Last Edit: October 11, 2024, 03:40:05 pm by nctnico »
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 
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Offline Phil1977

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The OWON XDM1x41 beeper is superfast and latched in Diode-Test mode, and the threshold voltage can be set between 0.1V and 3V.

In continuity test it´s not as fast but still okay. Resistance threshold is adjustable between 0 and 1kOhm.
 
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Offline rf-messkopf

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I vaguely remember seeing this option in the Gossen Metrawatt PM-Series Multimeters menu. According to the manual, this option is there, but it doesn't tell the setting range. I've never changed it from its default value (10 ohms) though.

I can check this when I get back to the copy of my Gossen multimeter.

Edit: And yes, the continuity test is fast on the PM multimeters, with no appreciable delay.
« Last Edit: October 09, 2024, 09:05:50 am by rf-messkopf »
 
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Offline TizianoHV

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It's not new, but the Keithley 2000 series (2000, 2015, 2700, 2790...) has this functionality and it's as fast as it gets (Dave reviewed the keithley 2015, testing the continuity).
Plus, they are one of the fastest autoranging multimeters in DC and resistance (it's slow in AC but I almost always use it for DC). When measuring resistors, it will almost instantly autorange (it's so fast because it doesn't uses relays for autoranging).


 
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Online tautech

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Before I build my own variable threshold continuity test circuit, are there any Hand held or bench multimeters out there with it included?
It needs to be fast responding, so I can test pins quickly by dragging a test probe along one end of a multipole connector.
I'm looking for an excuse to buy a bench multimeter, but apart from the  Siglent SDM3065X, what others have this. Thanks.
Based on these tests from a year ago ?
https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg4840136/#msg4840136

Maybe I need check the new SDM3055 firmware continuity response.....
Avid Rabid Hobbyist.
Some stuff seen @ Siglent HQ cannot be shared.
 
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Offline dustooff

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I can confirm that Rigol 3058 & 3068 both have continuity setpoint,

from the manual,
3. Set the Short-circuit resistance.
Press Set to set up the resistance of short-circuit. The default value is set as 10Ω when leaving factory. Users may carry on the Continuity measurement directly without modification.

They respond as fast as you can drag a probe down a row of pins looking for a short or tracing the circuit across the PCB.
Set at 50 ohms to quick test carbon membrane switches.
A feature that gets called on regularly.
 
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Offline nctnico

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The downside of those Rigol models is that their display is super tiny.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline Hexley

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From the manual for the Keithley DMM6500, page 4-23:

The DMM6500 can test continuity using the 2-wire 1 kΩ range with a user-selected threshold
resistance level. When the measured circuit is below the set threshold level, the instrument displays
the resistance readings. When the measured circuit is above the threshold level, the instrument
displays the message OPEN.
 


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