FNIRSI GC-01: Power consumption

[1MegaSaxoN]

hi folks, i have installed Gissio's radpro firmware in my unit, but due to poor battery life i am having, i want to go back to the original firmware, however the downloded 1.5 or the 1.6 files are way to big to flash back on, i cannot find the 48k files, my unit has the apm32 mcu with the j613 tube. please help!

[alfmck]

My GC-01 uses CH32 mcu and original firmware files flashes OK. I tried to measure the currency the device uses and was surprised that no matter if the radpro or original firmware loaded, the monitor is in sleeping mode or not, device uses 200 mA.

So I'm thinking about replacing the battery to more powerful one. The problem is that on the original battery are circuits that seems for controlling charging process.

Coming back to original software isn't a good solution, GC-01 with radpro convert it from cheap 5 minutes detector into 24 hours registrator with the possibility of PC connecting for data logging. You can also use any another tube, programming to it's specifications and then calibrate GC-01. Thank Gissio for Your radpro. I was very unsatisfied with the original soft but now I have what I wanted...

[1MegaSaxoN]

i wonder if anyone has successfully upgraded the battery yet? cuz that would be awesome!

[Gissio]

1MegaSaxoN:

Regarding your first question. On GC-01's with a WCH processor, power consumption of the original firmware is:

• 100 mA@battery with display on (max brightness). Since the battery is 1100 mAh, it should last for 11 hours in this case.
• 53 mA@battery with display off. It should last for 20 hours in this case.

Rad Pro requires 5 to 10 mA less than that, so it should be slightly better.

alfmck reports that the power consumption is 200 mA on GC-01's with a Geehy processor, which should last for 5 hours. It would be interesting to know how this was measured (display on, max brightness?). It would also be interesting to know what power consumption is with the display off.

Regarding your second question. Are you using Windows to upload the file? If you are unable to upload the firmware through the USB drive, in a few days I'll post instructions for flashing the firmware with a USB dongle.

[Gissio]

You are absolutely right.

But the idea of an "Energy saving" HV profile to use less power for background level measurements is not a bad one. We actually did this for the Bosean FS-600/FS-1000 and FS2011, and it performs quite well. There is, however, one caveat: these devices come with Zener diodes that cap the output to 440 V max, so there is no danger of overvoltage. The GC-01 does not seem to come with these.

[dc1rdb]

That is correct, the GC-01 does not have Zener diodes.

[alfmck]

I made more accurate HV measurements, using 2.2GOm resistor and analog oscilloscope with 10MOm probe after replacing J614 TO J321. My 440V pairs are: 2.5kHz@1.0%, 5kHz@1.5%, 10 kHz@3%. GC-01 with WCH board, RadPro 2.0rc1 firmware, compiled from source code(zip), submitted in 2.0rc2 release.
10% @ 2.5 kHz really results in overvoltage and should not be used.
Power consumption in MY device is about 200mA, fully charged battery lasted for 6 hours. Display was sleeping most of the time, used for ambient monitoring. I suspect that something is wrong with my device.

[alfmck]

Really the power consumption and battery capacity are not so important. You could simply connect it to the power bank when working outside.

[HFDave]

Instructions for doing this are published here: https://github.com/Gissio/radpro/blob/main/docs/users.md#hv-profiles
File not found. Can you update the link please? Thank you.

[Gissio]

Could you measure the frequency-duty cycle pairs for the factory-default voltage? From this I could derive an "Optimized" profile which uses less power but provides the same performance as the factory default.

I've already added the 2.5 kHz/1.5 % pair as "energy-saving" profile. It would also be great if you could measure this and ensure it produces 440 V @ background, both on WCH and Geehy variants.

[alfmck]

Here are my GC-01 measurements of frequency-duty cycle pairs, after replacing HH614 to J321 and R38-51mOm not placed.
Next week I'll have GC-01 with originally installed J321 and maybe repeat measurements.
HV settings.xlsx

[Gerard-Rdam]

I have a JOY-it JT-RAD01 with Rad Pro 2.0.2 with a
CH32F103R8 processor,
Tube = J321,
R38=5105 and a coil L1=103.

An HV with Factory default setting of 667Volt.
And on the Energy-saving setting of 71 Volt.

I did not have a 1Gohm resistor but 10x 33MOhm=330MOhm and a meter of 10MOhm is about factor 34, so the actual voltage could be about 10volt higher.
The tube starts counting at about 340volt.

I have made a table of this at all frequencies increasing by 1% and higher.

PWM JOYit Geigermeter.pdf
Tabel PWM JOYit Geigermeter.pdf

[Gerard-Rdam]

I have glued a large hand of an alarm clock with Radium paint on the back of the meter and this gave a measured value of 2,700uS/h with Factory default setting approx. 667Volt.
Then measured at 400Volt with the frequency of 1.5 – 2.5 – 5 – and 10Khz and had almost the same measured values ​​with a maximum deviation of approx. 0.050uS/h.
Only the background value that was approx. 0.150uS/h with Factory default setting is approx. 0.100uS/h at 400Volt.

What did make a big difference was the UV sensitivity of the tube when I shine a UV flashlight on the tube and then only on the negative side of the tube, the positive side was completely insensitive to UV light at a tube voltage of 700Volt.
At 400Volt the tube (J321) was almost insensitive to UV light.
It also seems that the tube on the negative side is more sensitive to ionizing radiation.
I have not measured current, I do not want to cut the battery wire and I do not have a current clamp.

[ugopapetti]

That's a very nice analisys, tò complete It Is necessary to have a measurement of the adsorbed current ti find the best compromise@, let's Say, 400v fo the dofferent frequencies. Step 2 do the same for systems with 102 (1mH) inductors. Unfortunately I can not do any measurement in this moment, really Sorry to not be able tò contribute... Il lun 23 dic 2024, 23:55 Gerard-Rdam ***@***.***> ha scritto:

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I have a JOY-it JT-RAD01 with Rad Pro 2.0.2 with a CH32F103R8 processor, Tube = J321, R38=5105 and a coil L1=103. An HV with Factory default setting of 667Volt. And on the Energy-saving setting of 71 Volt. I did not have a 1Gohm resistor but 10x 33MOhm=330MOhm and a meter of 10MOhm is about factor 34, so the actual voltage could be about 10volt higher. The tube starts counting at about 340volt. I have made a table of this at all frequencies increasing by 1% and higher. PWM JOYit Geigermeter.pdf <https://github.com/user-attachments/files/18233984/PWM.JOYit.Geigermeter.pdf> Tabel PWM JOYit Geigermeter.pdf <https://github.com/user-attachments/files/18233985/Tabel.PWM.JOYit.Geigermeter.pdf> Tabel.PWM.JOYit.Geigermeter.jpg (view on web) <https://github.com/user-attachments/assets/58037ede-6926-4b40-b510-ed199045935b> — Reply to this email directly, view it on GitHub <#60 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKWI7RFVKG2O6B4VHQZBHRL2HCIGLAVCNFSM6AAAAABUDYWMVGVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTCNRVGM4TCMI> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>