Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

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Planet Indigo   10 mW

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Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by Planet Indigo » Oct 05 2018 3:30am

I've been trying to find an all in one meter for my ebike that would give me voltage, amp draw and a user selectable voltage sound alarm for low and high voltage, but I can't seem to find such a thing...
The only meters with sound/buzzer voltage alarm that I've found just measure voltage, and the most versatile ammeter I found only have one (not two) non sound alarm (just screen flash, no sound).
Anyone knows or use such a device? Any link?

markz   100 GW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by markz » Oct 05 2018 4:03am

Just have two devices, the sound alarm could be placed anywhere if its loud enough.

Planet Indigo   10 mW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by Planet Indigo » Oct 05 2018 1:26pm

I thought of that but it's lighter/cheaper/tidier to have just one device if such a thing exists...
It sounds surprising to me that only the most bare voltmeters would have the feature and that it would disappear on the models tracking current and watts.
No one here uses a device like that?

miro13car   1 MW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by miro13car » Jan 24 2020 2:03pm

celllog which was excellent battery cell monitor with LVC and HVC alarms .
those alarms with open collector outputs could be configured to NC or NO /normally close/open/
as far as I know there is no equivalent device for hobby market right now.
Eplus, Bionx

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E-HP   100 kW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by E-HP » Jan 24 2020 10:23pm

Planet Indigo wrote:
Oct 05 2018 3:30am
I've been trying to find an all in one meter for my ebike that would give me voltage, amp draw and a user selectable voltage sound alarm for low and high voltage, but I can't seem to find such a thing...


Anyone knows or use such a device? Any link?
What voltage is your system running at?

miro13car   1 MW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by miro13car » Jan 26 2020 11:42am

MarkZ
what are those two devices you have?
Eplus, Bionx

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Sunder   100 MW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by Sunder » Jan 26 2020 6:37pm

Image

PZEM-051.

6-100v, 0-100A
Low Voltage Alarm
High Voltage Alarm
Persistent counter (Even with no power at all to it)
Backlit

For $20, you can't ask for more. Well actually I wanted to ask for it to be water proof, but a 3D printed case and some silicone came close enough.
eBike: Q100H on 16S with Phaserunner FOC Controller
eMotorscooter: Vectrix VX-1 on 36S
eCar: Mitsubishi Outlander PHEV... Waiting for warranty to expire
eHouse: 5.5kw On-grid solar with battery backup coming soon!

After 5 builds, the best advice I can give, is start with high quality products. I prefer http://www.ebikes.ca

miro13car   1 MW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by miro13car » Jan 27 2020 9:29am

it is complete different animal than celllog, because it uses shunt.
I for myself use CA with shunt for watts, Ah, WHr calculation.
however CA do not have any alarms.
I would not connect in series unknown quality shunt .
CA is rock solid and individually calibrated, shunt I trust.
Eplus, Bionx

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Sunder   100 MW

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Re: Is there such a thing as a wattmeter/ammeter with a sound voltage alarm?

Post by Sunder » Jan 27 2020 11:08pm

Hang on. I might have been mistaken. I think mine is one that flashes only. I had an older Voltage only one that had a buzzer in it. I'm conflating the two.

My mistake.
eBike: Q100H on 16S with Phaserunner FOC Controller
eMotorscooter: Vectrix VX-1 on 36S
eCar: Mitsubishi Outlander PHEV... Waiting for warranty to expire
eHouse: 5.5kw On-grid solar with battery backup coming soon!

After 5 builds, the best advice I can give, is start with high quality products. I prefer http://www.ebikes.ca

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