Who sells decent current probes?
I'm looking for a clamp-on current probe. I'm willing to settle for less than stellar accuracy (+/-5% would be close enough), but it has to work down to DC. A range of 0-20A would be sufficient for now, but more is better if I can switch ranges.
A quick perusal of Tucker Equipment sales got lots of hits, at disappointing prices.
TIA.
-- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" gives you just what it says. See details at http://www.wescottdesign.com/actfes/actfes.html
Tektronix. I have a couple of TCP202s
---Joel
What frequency range?
DC to 100Hz or so is all I need right now. More is always better, but that's what I'd be willing to spend $$ on.
-- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" gives you just what it says. See details at http://www.wescottdesign.com/actfes/actfes.html
Surf on LEM Current Probes
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
America: Land of the Free, Because of the Brave
Marvellous bit of kit. I'm rarely surprised but it did it for me. Really weird to see DC current going in and out of a battery and the same for the individual DC branch currents.
-- Posted via a free Usenet account from http://www.teranews.com
Just a hunch: I'll bet the DC measurements on this thing do not involve the clamp-on, but rather some in-line connections.
Seems odd (to me) that the AC frequency range (100Hz to 1000kHz) does not include line frequency, but I suppose there is a reason for it.
Mark
to
more
same
It's hall effect so just clamp it on as normal. That "100Hz" looks odd to me as well. I'll have a look at the user manual tomorrow. It's mainly used at 50Hz and the readings are identical to other '50Hz rated' AC RMS clamps. Also had it down at 20Hz OK.
-- Posted via a free Usenet account from http://www.teranews.com
Make your own fluxgate sensor.
You might try BellNorthWest since you're in the area. The prices seem better than Tuckers and they're just North of the Portland area in Washington.
We just bought one of the older Tek Current Probes. Don't remember the Model number, it's at work.
Robert
less
better
Model
I have several of the Tek model 610 (If I remember the # right). All current probes (clamp on type) that I have researched use Hall sensors for DC. If you only need AC, I suggest going with the CT type. The Tek worked great until we went overcurrent on a test. It destroyed three of our four probes! Fried the Hall sensors. I have not been able to find a replacement for the sensor and Tek support says it's not worth fixing! 3* $600, maybe not worth it to them!!!
"scada" wrote in news:e4Pii.786$ snipped-for-privacy@newsfe12.lga:
TEK "support" has really slipped in the last 10-15 years. I used to repair P6042 and A6302/6303 current probes while at TEK. (their probe xfmrs were TEK-made,thus costly and not available elsewhere.)
-- Jim Yanik jyanik at kua.net
The Fluke Y8100 is good from DC-1kHz and is often available at a reasonable price on eBay. It has 20A and 200A ranges.
It's in spec' from DC to 100kHz. For some unknown reason it's the frequency counter bit that only starts working at '99.99'Hz.
-- Posted via a free Usenet account from http://www.teranews.com
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.