Author Topic: New Tonghui handheld LCR meters: TH2822D and TH2822E  (Read 3760 times)

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Offline dav

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New Tonghui handheld LCR meters: TH2822D and TH2822E
« on: November 07, 2015, 04:00:12 pm »
Hi to all,

Tonghui released 2 new handheld LCR meters: TH2822D and TH2822E.
Main changes from TH2822A and TH2822C:

DC R measurement;
0.1% basic accuracy;
NiMH rechargeable battery;
0.3V 0.6V 1V rms selectable voltage (for in circuit measurement support)

Manual and specs here:
http://www.tonghui.com.cn/chanpin/th/01/sclcr/367.html

Tonghui is offering them for special price:
https://detail.tmall.com/item.htm?spm=a1z10.3-b.w4011-5620089009.34.7imVnD&id=43982292681&rn=14c8761211f9a3cf13ae8f374859172e&abbucket=18&skuId=78494917635

Did anyone try one of these units?
 

Offline Tjuurko

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Re: New Tonghui handheld LCR meters: TH2822D and TH2822E
« Reply #1 on: January 31, 2017, 06:10:07 am »
TH2822E Handheld LCR Meter,VER3.8.1604,SNQB-316-*****

Very fast (fractions of a second) component of the definition and measurement of any of its parameters.

The lack of a single indicator of the frequency of the test signal. After changing the frequency falls again to select "second" measured parameter.

Individual Calibration OPEN/SHORT for each frequency (including DCR). It is possible to compensate for the "significant" parasitic resistance. The parameters are reset after switching off the device.
I looks like "100 kHz" and "the DCR" is used to calibrate the same memory cell. [!]

Ability to customize the initial mode after switching on:
Option 1: the default values
Option 2: The predetermined value. I always resets the frequency to 1 kHz. [!]
In the current firmware inability to remember the state before shutting down.

Charging the battery for mains operation. For me, it remains a mystery when charging is complete. [!]

Support SCPI Commands. The lack of "LabView driver for TH2822". [!]
Measured data can be output through HyperTerminal (9600-N-1).
 

Offline djnz

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Re: New Tonghui handheld LCR meters: TH2822D and TH2822E
« Reply #2 on: January 31, 2017, 08:54:15 am »
TH2822E is the same as BK Precision's BK880.
 

Offline Tjuurko

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Re: New Tonghui handheld LCR meters: TH2822D and TH2822E
« Reply #3 on: February 06, 2017, 09:26:25 am »
Resistance measurement DCR mode made rectangular pulses of low frequency.
Form voltage on the measured component (R=10 MOhm) in DCR mode:
 


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