Comments on: DT830 multimeters https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/ All about electronics and circuit design Wed, 06 May 2026 17:23:38 +0000 hourly 1 http://wordpress.org/?v=3.9.14 By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1862335 Mon, 22 Sep 2025 08:31:27 +0000 https://www.epanorama.net/blog/?p=186873#comment-1862335 Add backlight to LCD
https://www.facebook.com/share/r/1AaUfxQFWU/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1856709 Tue, 24 Jun 2025 11:02:18 +0000 https://www.epanorama.net/blog/?p=186873#comment-1856709 There are lots of variants of this meter but this might be a good starting point. https://www.petervis.com/meters/dt830d/dt830d-circuit-component-values.html

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1821617 Fri, 02 Feb 2024 21:20:13 +0000 https://www.epanorama.net/blog/?p=186873#comment-1821617 Steve B AndFamily
The DT830 is a genericised Chinese-manufactured 3.5 digit digital multimeter that can be had for an astonishingly low price.

DT830 is based on ICM 7106 chip that was based on work Intersil did in 1977 to produce the part in Fluke’s first portable DMM, the model 8020A.
So you’re not getting anywhere near the physical design or component quality of that expensive meter, but you are benefiting from the tech that made its ancestor a very good instrument for the 1970s. The dual-slope integrating ADC and precision reference are the same as the ones in many far more expensive meters, which is what makes the reading from your few-dollar DT830 one you can trust. Not bad for something you might dismiss as a piece of junk!
The DT830 multimeter, then. It may be a heap of junk, but it’s an astonishingly good heap of junk.

https://hackaday.com/2020/09/24/in-praise-of-the-dt830-the-phenomenal-instrument-you-probably-dont-recognise-for-what-it-is/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1818101 Thu, 23 Nov 2023 10:46:02 +0000 https://www.epanorama.net/blog/?p=186873#comment-1818101 https://hackaday.com/2020/09/24/in-praise-of-the-dt830-the-phenomenal-instrument-you-probably-dont-recognise-for-what-it-is/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1814592 Fri, 29 Sep 2023 16:53:09 +0000 https://www.epanorama.net/blog/?p=186873#comment-1814592 The DT830 is a genericised Chinese-manufactured 3.5 digit digital multimeter that can be had for an astonishingly low price. It might have been originally marketed to have something like +-0.5..1 % accuracy on voltage measurement, when it ages and/or the battery in meter is not new, the accuracy can be much worse.

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1813364 Wed, 13 Sep 2023 06:10:54 +0000 https://www.epanorama.net/blog/?p=186873#comment-1813364 John Ferguson many cheap multimeters have a small 5×20 mm glass fuse in current range. Those fuses are LBC (Low Breaking Capacity) with typical rating of 35-125A.
Good safe meters use ceramic fuses with high breaking capacity (like 10 kA).

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1811100 Sat, 19 Aug 2023 14:25:58 +0000 https://www.epanorama.net/blog/?p=186873#comment-1811100 https://hackaday.com/2018/10/23/3-multimeter-teardown/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1808482 Sat, 15 Jul 2023 15:28:28 +0000 https://www.epanorama.net/blog/?p=186873#comment-1808482 LCD Digital Multimeter A830L AC DC Voltage Diode Freguency Multitester Current Tester Luminous Display
https://www.aliexpress.com/item/1005003070103245.html

€0.19€0.2521% off
Price includes VAT, Shipping fee: €4.06

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1804605 Wed, 31 May 2023 13:39:33 +0000 https://www.epanorama.net/blog/?p=186873#comment-1804605 How to Repair a Multimeter showing wrong values, MASTECH MAS830
https://www.youtube.com/watch?v=YjN4s6YqjVI

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2020/10/10/dt830-multimeters/comment-page-1/#comment-1804604 Wed, 31 May 2023 13:37:20 +0000 https://www.epanorama.net/blog/?p=186873#comment-1804604 #178 Mastech Multimeter Repairing— Advance Repairing Tips..
https://www.youtube.com/watch?v=MgNFEeupp4A

Hello friends in this video i am going to show you how to repair mastech MAS830 with some advance reapairing tips.
In this video we are going to repair contuity range or Continuously beep sound.

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