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Hantek LCR 1832C unlock

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Veteran68:

--- Quote from: Randy222 on January 25, 2024, 07:54:44 pm ---How do you display the device info in the screen? Or do I need to use SCPI?

--- End quote ---

Just realized I missed this question.

Press the SET button 2 or 3 times. First it brings up the menu, then hit it again to bring up the device info. Can't remember if it takes a second or third press (don't have it with me).

Randy222:
With this new FW on my 1833C
Running on just batt power.
1) I probably need to verify by going back to old FW, but now when it boots the values for most items just say "-----------" with no probe wires attached, whereas in old FW the readings were jumping around.
2) The freq signal no longer drops off for a quick/brief time, sine wave does appear to stay on.

Beyond that, did not test anything else.

ru_tash:

--- Quote from: Randy222 on January 26, 2024, 09:05:18 pm ---With this new FW on my 1833C
Running on just batt power.
1) I probably need to verify by going back to old FW, but now when it boots the values for most items just say "-----------" with no probe wires attached, whereas in old FW the readings were jumping around.
2) The freq signal no longer drops off for a quick/brief time, sine wave does appear to stay on.

Beyond that, did not test anything else.

--- End quote ---

Upgraded my 1832C.
Battery power.
1) did not notice difference with old FW with "------" symbol.
2) no more signal interruptions, readings are stable

Finally the tool became usable  :-+

Via SCPI converted it to 1833C.

PS. couple of months ago in the process of searching the root cause of interruption i shielded digital part of PCB with brass foil, now i am thinking about to remove it or leave it on place.  :-//

hpw:

@Randy22

>> Please let us know how the new worked as whether the open calibration saves now or not or only in DEBUG mode.

>>May add a small cap for getting OFF calibration value and then test it with calibration(without the off cap) and switch off & on again.


So any results using the 2023 FW how the calibration behaves... are any change notes given from Hantek?

Hp

yg188:

--- Quote from: Russ3000 on June 26, 2021, 08:38:47 am ---After flashing the device with a new firmware, it became 1832C again, I had to apply the Teixeluis method, everything worked out great.
But the device did not remember the calibration after turning off, I decided to try to enter the device into debug mode, while the red inscription "DEBUG" lights up on the device screen next to the battery, disconnected the device from the computer, the inscription remained, did the calibration open and closed, connected 1833C to computer, wrote the command "fact: save" and exited debug mode. Now, when you turn on the power, the device loads the calibration that I did.
Good luck!

--- End quote ---
Thank you, your post helped me save the calibration. I am very grateful to Russ3000 and teixeluis for your work.. I want to say that after saving the calibration through debugging mode, you can change the firmware to another (using DfuSeDemo) one and the calibration remains. I want to clarify for those who are interested in this. I entered debugging mode using the program "IOLibSuite" - Keysight Connection Expert 2023 - Keysight Interactive IO.
You need to connect Hantek via USB and turn it on.
I entered the following into the "Command" line:
1. *IDN?
2. calib:hantek_enter_debug_cmd
- Then, without turning off the device, disconnect it from the Computer and make the calibration open and closed. Then connect the device back to the computer via USB.
3. fact:save
4. calib:hantek_exit_debug_cmd
5. *IDN?
After each command, you need to click "Send& Read"
R.S. If the program does not see the Hantek 1832c, then you need to go to the Device Manager and install the "USB Test and Measurement Devices" driver, which is located on the computer after installing the program.

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