Questions tagged [meter]
The meter tag has no usage guidance.
130
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Connecting an energy meter with 6 CTs? [closed]
I want to install an energy meter to monitor the energy consumption of a transformer. The secondary side of this transformer is a parallel circuit, making it impossible to connect three current ...
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3
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Help with LED VU meter
In this circuit, when in bar mode all LEDs light up, in dot mode only LD10s. Overall it doesn't react to the audio input at all.
I wanted to use a half wave rectifier before the LM3914 for better ...
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Using an ESR Meter to measure in-circuit capacitors' equivalent series resistances with 100kHz test frequency (via MESR-100 ESR Meter)? [closed]
So, I have an image of an ESR Meter from YouTube. It is the relatively popular [Brand Unknown] MESR-100 entry-level standalone ESR meter. Please see image below.
So, below the LCD on the faceplate, it ...
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Help Find Unknown Bad Zener: Digital Volt Amp Meter
This is Digital Volt Amp meter display module. Working voltage was max 30v and I burned the transistor BL P11 NPN (1A) with more input. Replaced with CXT5551 (600mA), operating current for module is ...
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Can LM358 be replaced with AD8676
I am trying to build an circuit with an PCB to sample the main AC waveform in an ADC set to 0V to 3.3V range. I noticed that there are some ZMPT101B modules that is based on LM358. I made some ...
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Did a blown fuse in my multimeter damage my multimeter?
May be a little newbie question, but I since I am an electronics beginner and couldn’t find a direct answer I will ask it.
I blew the 600 mA fuse on my brand new multimeter, I think I didn’t change ...
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Can I connect ten RS485 modbus kWh meters to one RJ45 modbus server? [closed]
If I have a fusebox with about ten/fifteen eastron sdm630 and Orno OR-WE-515 kWh meters with RS485 modbus, can I daisy chain ...
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How to connect a digital meter between alternator and batteries?
We are using a 24 V, 100 A external alternator in our vehicle to charge leisure batteries. We need to monitor the alternator’s voltages and current on a digital meter but the alternator is grounded ...
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How can I measure the frequency of multiple square waves?
I'm trying to evaluate the frequency of 18 independent sources of square waves in my system (the signals are generated independently as feedback.) Basically, I need to have a way to use one ...
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Voltmeter reading over 63 amps with no load attached
Please see the attached pictures. I am new to electrical stuff and experimenting. The meter in the attached pic shows over 63 amps with ZERO load attached. Is this meter damaged?
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Understanding Energy Meter Output
I am not an electrical engineer. I am software engineer trying to build an app to work with a smart plug and I just don't understand the basic concepts and so just looking for some beginner help.
I ...
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Getting Energy values from the Allegro ACS37800
I am currently using the Allegro ACS37800 IC to monitor power, from what I found on the datasheets and from the internet this IC is capable of calculating the voltage, current, and power. I actually ...
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Change the range of Earth Resistance Meter to measure lower resistance values
I have an analog Four Terminal Earth Resistance Meter with 100 ohms as the maximum range and 1 ohm is the resolution. The scale is linear. I need to measure low resistances below 1 ohm. How can I ...
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Interfacing temperature system to moving coil
I was working on a design question (this is not homework, just personal practice). Can someone please help me get started or guide me through any worked steps please?
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How are "Macrometers" officially called?
I have been doing research about the name of these electric meters. I found a rough definition of it, but i have been told the name is not right.
the definition goes as follow:
"Macrometers are ...
