New LCR meters, Zoyi ZT-DQ01 and ZT-DQ02 (March 2025)

[Serg65536]

for this one Zoyi mmm  i'm reading manual ... but it enter more a full calibration and battery calibration, haven't seen an open short leads calibration ...
Checked Zoyi main web site and the 2 lcr's models  haven't been put on display ? yet ?

Please post pictures of the instruction manual. It's not available yet.

[Atlan]

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[Atlan]

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[Atlan]

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[indman]

I think I should wait until they make the ZT-DQ03 with a 3.5 inch display. Similar to ZT-703S 

[Atlan]

I don't see a reason. Yes, the cover is pre-printed for a larger display, but everything is large enough on the given display size.

P. S. The case for the device is not the best. It probably wasn't designed for all the cables. I would have liked a larger case with a separate section for the cables, which would have limited the amount of cables scratching the display like they do now.

[indman]

I don't see a reason.

You didn't convince me. For a person with poor vision, 3.5 inches is better than 2.8. Plus, the larger display can hold more useful information.
I'm waiting ZT-DQ03.

[coromonadalix]

if there is one who'll come out  loll

sure 2.8" can be small, wont argue on that ...   

for the price, i'm satisfied with it

[RAPo]

My device still hasn't arrived, but if I compare it to the Hantek and uni-T 612, it seems to have the same readability.

I don't see a reason.

You didn't convince me. For a person with poor vision, 3.5 inches is better than 2.8. Plus, the larger display can hold more useful information.
I'm waiting ZT-DQ03.

[mawyatt]

The "insulating spacer" now makes sense as shown in the manual images. Inserting it causes the 'blades' in the slots of the Hcur and Hpot which are normally shorted together as are Lcur and Lpot 'blades' to separate and "Open". Without this effectively makes the external Kelvin connections ineffective as the Kelvin connections are completed inside the meter slots. Inserting the insulator spacer separates the H and L blades allows proper external Kelvin Sensing.

Also noted in the manual images, that a Calibration can be performed with a Short (0 Ω) and Open separately and/or alone without the need for the other resistance calibration values. This is like most other LCR Meters we have experience with, and the ability to use various precision resistors as Calibration Standards in a nice additional feature IMO.

From what we've seen in the manual images, one could construct a 'Shorting Bar' like we've done for our DE-5000 and do a Short Calibration, then an Open Calibration which should produce the most repeatable results for high and low Z leaded components.

Wonder if Zoyi will offer a Shorting Bar like Tonghui has for their Bench LCR Meters?

This looks very interesting and curious how the ZT-DQ01 compares with the DE-5000 or other known LCR meters wrt accuracy and repeatability. If we had one would be more than happy to compare with our TH2830 and IM3536 Lab Bench LCR Meters

Anyway, thanks Atlan for posting the manual images

Best

[bffargo]

Will this clip work with it?  I see some have thin legs and others have thick will both work or only 1?  https://www.aliexpress.us/item/3256805897134521.html

[coromonadalix]

seems to be compatible the guard and others does fit the Zoyi

and they seems to be less expensive as many on the same site or Ebay  etc ...

[Atlan]

What's better than the 4 cables that come with the device?

[bffargo]

less expensive as many on the same site or Ebay  etc ...

Even better with the last of my Coins to use up too    Sadly their own images have both the thin tabs and wider ones, and user images don't show them. One said it didn't work well with the Hantek?

[bffargo]

What's better than the 4 cables that come with the device?

Is that a statement or question? Is the clip + slot considered better connection than the 4mm banana plugs? Also not sure the gauge of the wire on the included ones with the 02?

[coromonadalix]

less expensive as many on the same site or Ebay  etc ...

Even better with the last of my Coins to use up too    Sadly their own images have both the thin tabs and wider ones, and user images don't show them. One said it didn't work well with the Hantek?

Bought the same    well see

[mawyatt]

What's better than the 4 cables that come with the device?

Is that a statement or question? Is the clip + slot considered better connection than the 4mm banana plugs? Also not sure the gauge of the wire on the included ones with the 02?

We had assumed that image shows a shorting bar, but apparently it's a "Spacer Bar" which is required when using the Banana Sockets to keep the blades in the slot "open" so the Kelvin connection is thru the Banana Sockets and not directly in the slot.

With that ^ in mind it would seem the Kelvin Clips with the Blade Fixture might be better (if it fits properly) as it eliminates the need for the "Spacer Bar".

Would think that Zoyi would include this Fixture (if it fits properly) rather than the Banana Jack based Kelvin Clips and Spacer Bar. Maybe they will in the future??

Best

[Serg65536]

So there are open and short calibration modes!
Actually, there are two separate menu entries for calibration, which include open and short calibration.
Can anybody confirm that two calibration modes exist, so this is NOT the instruction manual glitch?

Unclear is:
1. When to use and what type of calibration?
2 How large is short circuit drift? (should be temperature dependent)
3 How large is open circuit drift? (should be temperature and humidity(?) dependent)
4 Does the device calibrate adjacent ranges to compensate open and short drift? (probably not, because there are separate calibration entries for each range)

Knowing the answers to these questions would dramatically increase the actual accuracy of the device.

[LeonR]

less expensive as many on the same site or Ebay  etc ...

Even better with the last of my Coins to use up too    Sadly their own images have both the thin tabs and wider ones, and user images don't show them. One said it didn't work well with the Hantek?

Ziboo have a youtube channel. Maybe they're willing to share their test results?

https://www.youtube.com/@ZIBOO-Official/videos

[RAPo]

Yes, that Kelvin clip will work (I just tested my DQ02 with exactly this clip).

Will this clip work with it?  I see some have thin legs and others have thick will both work or only 1?  https://www.aliexpress.us/item/3256805897134521.html

[RAPo]

There are two calibration modes:

Method 1 for the LCR
Method 2 for the Battery tester.

Method 1 has open/short and several resistance calibration settings: press the value you want to calibrate, press auto, and the bar will turn yellow, and after 30-45 seconds, screen will turn green if the calibration is okay.

Method 2  can also be used to calibrate voltage settings.

So there are open and short calibration modes!
Actually, there are two separate menu entries for calibration, which include open and short calibration.
Can anybody confirm that two calibration modes exist, so this is NOT the instruction manual glitch?

Unclear is:
1. When to use and what type of calibration?
2 How large is short circuit drift? (should be temperature dependent)
3 How large is open circuit drift? (should be temperature and humidity(?) dependent)
4 Does the device calibrate adjacent ranges to compensate open and short drift? (probably not, because there are separate calibration entries for each range)

Knowing the answers to these questions would dramatically increase the actual accuracy of the device.

[RAPo]

The manual states that you can log values using SCPI. The manual doesn't elaborate. Has anyone more info?

[RAPo]

I did a short test of the battery tester, both before and after calibration, and the Fnirsi HRM-10 is more accurate.
Still, a nice function to have.

[Atlan]

Maybe firmware 107 ? https://www-mydigit-cn.translate.goog/thread-515071-1-1.html?_x_tr_sl=auto&_x_tr_tl=sk&_x_tr_hl=sk

[bffargo]

Maybe firmware 107 ? https://www-mydigit-cn.translate.goog/thread-515071-1-1.html?_x_tr_sl=auto&_x_tr_tl=sk&_x_tr_hl=sk

Do you have invitation codes for that forum? Seems you can only sign up from invite from existing members.