hewking's latest activity
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Hhewking replied to the thread RS485 Troubleshooting.So, you need three wires. Two for the differential voltage with the appropiate termination. A third one for the ground, which can be...
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HYou can find standards for RS232 or RS485 on websites like the International Electrotechnical Commission (IEC) or the Institute of...
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Hhewking reacted to LabJackSupport's post in the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz? with
Like.
We are primarily a hardware company. Our specialty is computer-based data acquisition & control devices. If you can't find something... -
Hhewking replied to the thread Are macbook pro used in automation industry ?.so it runs ARM version of windows? never heard of that - i guess it will not work with automation very well
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Hhewking reacted to Dr.Who's post in the thread Are macbook pro used in automation industry ? with Like.
Apple's newest hardware is not Intel-based and likely will not be able to run Windows directly. Apple's latest MacBook Pro hardware runs...
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Hhewking replied to the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz?.massive thanks for reply - can you explain bit more more what labjack does - is it hardware, software or both?
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Hhewking reacted to LabJackSupport's post in the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz? with Like.
I don't know of a COTS device to do that. Please let us know what you find. Our products can measure the signals (with some sort of...
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Hhewking replied to the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz?.i need to measure true RMS voltage (400V max line to line), current in each phase, power factor and total active power the challenge...
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Hhewking replied to the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz?.hi i need line to line voltage and currents in each phase plus power factor plus total active power. Data to be sent over modbus tcp to...
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Hhewking replied to the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz?.thanks a lot for giving me direction i am on the phone to them right now
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Hhewking replied to the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz?.That is great idea to read from the VFD however after VFD there is a sine filter which as we know causes some non linear losses of the...
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Hhewking reacted to patrickduis's post in the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz? with Like.
You said you use a VFD. Most VFDs have a ModBUS RTU RS-485 connection. With that you can read out all the current, voltage and power...
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Hhewking replied to the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz?.Massive thanks for reply however the lower range of 10hz is used most of the time. Any device that would cover 10-200hz. So far i have...
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Hhewking reacted to patrickduis's post in the thread What device shall i use to measure 400V Voltage which can change frequency between 10-200hz? with Like.
There are several devices for that. They integrate the voltage and calculate the true RMS voltage (equivalent DC like voltage of the AC...
