ID 3-phase ammeter?
ID 3-phase ammeter?
(OP)
I found a 4.25" three-phase ammeter at a hamfest today, and bought it for a song.
Unlike much of the things I buy, I have an immediate use for this.
It has 7-segment displays for all three phases, some alarm limits & will show neutral current. It mounts in 3.97" circular hole. It's got a label with pinout & E142921 noted. It seems to run on DC of unstated voltage.
The controls are labeled C|N, Max/Min|Limits, Print|Prog &Set.
What it lacks is a name or model number of any kind. Does anyone recognize it from the photos here?
Unlike much of the things I buy, I have an immediate use for this.
It has 7-segment displays for all three phases, some alarm limits & will show neutral current. It mounts in 3.97" circular hole. It's got a label with pinout & E142921 noted. It seems to run on DC of unstated voltage.
The controls are labeled C|N, Max/Min|Limits, Print|Prog &Set.
What it lacks is a name or model number of any kind. Does anyone recognize it from the photos here?






RE: ID 3-phase ammeter?
Alan
"The engineer's first problem in any design situation is to discover what the problem really is." Unk.
RE: ID 3-phase ammeter?
Thank you..!
{Wonder why are they ashamed of their name???}
RE: ID 3-phase ammeter?
Alan
"The engineer's first problem in any design situation is to discover what the problem really is." Unk.
RE: ID 3-phase ammeter?
First I'll need to figure out which power supply option it has....
RE: ID 3-phase ammeter?
And they're common as mud in utility substations around here.
old field guy
RE: ID 3-phase ammeter?
But I'll need to figure out the needed PS first; it can be 125V AC/DC, 24-48VDC, 120AC or 230VAC. A little circuit/component analysis should resolve that.
RE: ID 3-phase ammeter?
It works as represented and looks pretty, too. I can see why alehman's clients like them.