Products > Test Equipment
Brymen BM829s beep volume
Kean:
Yeah, sorry! The tape idea will only work with an enclosed piezo that has a hole that can be blocked.
The BM835 uses an enclosed piezo, so I thought the larger 800 series models would too. In fact I thought I had seen a photo of one, but must have mixed the models up as I just opened up my BM869s to confirm it looks much like your BM829s.
Kean:
--- Quote from: Miti on March 25, 2019, 02:43:16 am ---In your case the only solution I see is a very invasive one, if you are really committed to reduce the volume. Cut one of the traces that goes to the springs and add an SMD resistor series.
You could start with 1K and go up until you're happy.
--- End quote ---
For a less invasive solution, maybe inserting a semi-conductive material between one of the springs and the piezo contact?
Something like a small piece of black conductive foam, or some other carbon impregnated material.
Fungus:
--- Quote from: Toolio on March 24, 2019, 09:14:47 pm ---Put some tape on it and spared the holes for the springs but now it's not beeping at all anymore.
--- End quote ---
If you get zero sound then maybe it's not making contact.
Cnoob:
I used my BM867s the other day and the buzzer made me jump because it's so loud.
But It's handy to have a meter with loud buzzer for noisy environments.
My Keysight U1242C you can adjust the frequency, melody or beep, horn on or off but not volume, with it's way too many config options to remember.
Toolio:
--- Quote from: Fungus on March 25, 2019, 05:54:52 am ---
--- Quote from: Toolio on March 24, 2019, 09:14:47 pm ---Put some tape on it and spared the holes for the springs but now it's not beeping at all anymore.
--- End quote ---
If you get zero sound then maybe it's not making contact.
--- End quote ---
No the tape is fine. I put the rotary swith back in the wrong way :palm:
It's good now.
The tape dampens a little but not as much as i wished.
I think i will go for the resistor approach. I will need a friend to do it for me since that kind of modification is a bit out of my league.
--- Quote from: Kean on March 25, 2019, 05:54:37 am ---For a less invasive solution, maybe inserting a semi-conductive material between one of the springs and the piezo contact?
Something like a small piece of black conductive foam, or some other carbon impregnated material.
--- End quote ---
That sounds like somthing worth trying before i start messing with the circuitry, thanks
--- Quote from: Cnoob on March 25, 2019, 08:45:52 am ---I used my BM867s the other day and the buzzer made me jump because it's so loud.
But It's handy to have a meter with loud buzzer for noisy environments.
--- End quote ---
I do most my testing and mods in the night and with this device i'm afraid to to wake up the neighbours.
Doing a continuity test actually hurts my ears!
I found out i'm not the only one with this issue:
https://youtu.be/5D8jxj9chBo
Note that this Brymen has a different type of speaker that is not nearly as loud as the type in my BM829s.
And that type of speaker you CAN actually dampen with some tape.
But he simply replaced a part. Is that possible with the BM829 aswell?
Looks like it might be R30
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