Choosing the correct ammeter with CT

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Have you asked the RS agent on live chat they are pretty good usually
 
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The CT is 1000:1 so you'll be looking at 25mA into a 33ohm in-built burden resistor. So you need a meter with an FSD of around 1volts AC
 
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The CT is 1000:1 so you'll be looking at 25mA into a 33ohm in-built burden resistor. So you need a meter with an FSD of around 1volts AC
Thanks, what is the FSD? The ammeter I linked to has no mention of FSD? Are you able to pick one on RS which would work?
Basically the application is for monitoring the current draw on a 3 phase motor, (only one phase needs to be monitored), hence why i want to use a CT rather than a direct connection through an ammeter.
 
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The CT is 1000:1 so you'll be looking at 25mA into a 33ohm in-built burden resistor. So you need a meter with an FSD of around 1volts AC
Thanks, what is the FSD? The ammeter I linked to has no mention of FSD? Are you able to pick one on RS which would work?
Basically the application is for monitoring the current draw on a 3 phase motor, (only one phase needs to be monitored), hence why i want to use a CT rather than a direct connection through an ammeter.
 
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Looking at the data sheet wiring diagram to me it appears to me you can wire it direct OR via a CT
That is always an option but one wouldn't use a 60A meter.
I'd be looking for something like a 50:1 CT and a 1A meter as long as they do a 50A scale for it.
Or a 100:1 and a 0.5A meter with a X100 sticker.
The combinations are endless but limited to availability.
 
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That is always an option but one wouldn't use a 60A meter.
I'd be looking for something like a 50:1 CT and a 1A meter as long as they do a 50A scale for it.
Or a 100:1 and a 0.5A meter with a X100 sticker.
The combinations are endless but limited to availability.

In all liklehood, it has a removable shunt on the back of it, to allow it to be connected directly in line. It would also need to have a diode in line with it, to use it on ac..
 
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Look at this selection:
5A meter: https://uk.rs-online.com/web/p/analogue-panel-ammeters/8861828/
60/5A CT: https://uk.rs-online.com/web/p/current-transformers/8862112/ (More here: https://uk.rs-online.com/web/c/auto...t-transformers/?applied-dimensions=4294343316)
60A scale: https://uk.rs-online.com/web/p/analogue_panel_ammeter-scales/1236778/
I haven't verified the compatibility


In all liklehood, it has a removable shunt on the back of it, to allow it to be connected directly in line. It would also need to have a diode in line with it, to use it on ac..
OP shows an AC MI meter so possibly no Diode.
If it does have a removeable shunt (which my experience says is unlikely) then it's possible the facilities are there to be able use the shunt remotely, there's may even be a dedicated enclosure/mounting for the job.
 
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If you look at the meter scale labelling you'll see what looks like a vertical resistor with a line down through it. That's the DIN symbol for moving iron. Apart from that the RS descriptor states "Ammeter 60A AC"
 

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