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1 Replies and 2015 Views Difference between CR8348-2000 and CR8349-1000  2015  1 Started by  Sunil Sawant I want to measure 30 Amp inrush (surge) current for 3 secs. I have shortlisted CR8349-1000 and CR8348-2000 for the purpose. Both CTs are rated at 50 Amp. As per datasheet (CR8300 Series.pdf); Vmax rms, Te (typ) and DC Resistance of both CTs is different for same rated current. 1. What is the difference between both CTs from application point of view 2. Which CT is suitable for above mentioned application 3. Are both CTs interchangable in above mentioned ...
1 2015
by  Tony HodgesJump to last post
06/13/2013 8:33 AM
2 Replies and 2044 Views Monitor AC motor Currents on Conveyor  2044  2 Started by  Larry Laster I would like to know the best product available. What we are trying to do is monitor current on a conveyor that has a history of breakage. The idea is to monitor the current of the AC motor into the PLC analog card(0-10)vdc and then stop the conveyor before major damage. The motor is 460 3 phase 15 horsepower 17.22 amps. When starting the conveyor the current rises to 80 amps and once the conveyor is moving the current draw is around 6 amps. We are looking at your model CR4211. Does this require...
2 2044
by  Larry LasterJump to last post
06/07/2013 8:44 AM
4 Replies and 1831 Views CR4395 with CRGFS-100 Application Question  1831  4 Started by  Tim Mik Is there a limit to wire length from a CR4395 Module to the CRGFS-100 Also should shielded cable be used for interconnection Thanks, Tim
4 1831
by  Tim MikJump to last post
06/06/2013 8:52 AM
1 Replies and 1994 Views 3 phase 3 wire CT instal  1994  1 Started by  Art Goodman I'm using the CR8350-2500-N current transformer to measeure 3 phase 3 wire system. I need to know the correct install for your CT. When H1 faces the source on L1 and L3, I get a Negative Active Power reading. When L1(H1) faces the source and L3(H1) faces the load my Active Power is Positive. Which way is the correct install.
1 1994
by  Tony HodgesJump to last post
05/28/2013 8:27 AM
1 Replies and 2139 Views CT Recommendation  2139  1 Started by  Joe Rocci I have an application that requires current monitoring of a 220VAC load up 100 amps. I'd like to use a split-core CT. The output of the CT would drive a load resistor to develop a voltage that is sampled by an A-D converter in order to make various measurements. I'm looking at the 604-1000T for this. Since this is a 3000 turn unit, can I assume that, with 100 amps in the load, the output current would be 0.033A Can I also assume that, if I load it with 1000 ohms, the output voltage would be 33V...
1 2139
by  Will LowesJump to last post
05/07/2013 11:21 AM
1 Replies and 2009 Views amy 5395 with High and Low limit?  2009  1 Started by  Ron Fial Is there any version of the 5395 or similar product to sense DC current where the output relay closes betweeen, say, 1A and 3 A, but relay is open below 1A and relay is open above 3A. It would need two adjustments instead of the single on on the 5395. Thanks
1 2009
by  Tony HodgesJump to last post
04/12/2013 7:54 AM
1 Replies and 2095 Views CR5210-5  2095  1 Started by  Steve Smith I have several CR5210-5 CT's I use in my EGSE Racks to monitor the main power supply current which I send to a 0-10V panel meter. I have a 28VDC power supply used to power all the front panel meters, I tapped off of this Supply to the input of a L7824CT Voltage Regulator to power the CR5210-5. I recently had to change a CT because it was outputting 10mV with no current flow, (the main pwr supply was unplugged). I now have another CT that is outputting 6mV with no current flow.I have several q...
1 2095
by  Tony HodgesJump to last post
03/01/2013 11:19 AM
1 Replies and 2226 Views CR8448-1000  2226  1 Started by  Armando Mora I bought a CR8448-1000, but the CR8400 series data sheet doesn´t list its parameters (Ir, Vmax RMS, Te, DCR and frequency). Could you tell me about them Thanks.
1 2226
by  Tony HodgesJump to last post
01/18/2013 11:16 AM
1 Replies and 2153 Views Effect of Multiple (in-line) transducers?  2153  1 Started by  Travis W For my application, I would like to measure single-phase and three-phase test objects in two different setups: A: Volts - Amps - Watts - Power Factor B: -- C: -- A: Volts - Amps - Watts B: Volts - Amps - Watts C: Volts - Amps - Watts How much effect, if any, would the extra transducer (or two) have on the other transducers in that 'leg' of the circuit or in comparison with the other two legs It appears that the transducers have sufficient input i...
1 2153
by  Tony HodgesJump to last post
12/18/2012 3:56 PM
1 Replies and 2188 Views 3-Phase vs 1-Phase Power Measurement  2188  1 Started by  Travis W I want to accurately measure single-phase and three-phase test objects. The test set may be connected to a single-phase or three-phase power source (depending on which test bay I'm in). The information for 6250/6260 says that all three inputs are needed. When I switch over to single-phase measurement (e.g. single-phase test object), will I need to switch over to a single-element transducer such as the 6220 (which measures with one element)
1 2188
by  Tony HodgesJump to last post
12/18/2012 1:39 PM
1 Replies and 2226 Views Model 19  2226  1 Started by  Tony Heweston Basic 240v single phase wattmeter Hi am looking at using an AD633 four quadrant multiplier and driving the input reference voltage from a resistor network across the supply and the current reference via a Model 19 current transformer with the possible addition of a LM324 to provide some gain for the Model 19 output. Max current should be about 20amps. Would this seem to be a workable application for the Model 19 product
1 2226
by  Tony HodgesJump to last post
12/03/2012 10:46 AM
1 Replies and 2239 Views Accuracy 8459-2000N and 8450-2000  2239  1 Started by  Douglas Correa I would like to know what is the accuracy of the 8459-2000N and 8450-2000 (current transformer) thanks in advanced!!
1 2239
by  Tony HodgesJump to last post
09/26/2012 12:05 PM
1 Replies and 2359 Views Sense current with DC output  2359  1 Started by  Mark Carlile I've got a model 19 CT and need to get a DC output signal for monitoring a 2hp single phase AC motor. Using application guide titled 'Precision rectifier circuit for CT signal conditioning' has proven unsuccessful thus far. Details: 1) I'm assuming the two back to back zener diodes are to protect circuit from in-rush current when motor is starting. 2) Line amps will be between 5 and 15 amps. Using 10 amps with a 230 turn model 19 gives .04A. Applied to a 22ohm resistor should give ab...
1 2359
by  Tony HodgesJump to last post
09/26/2012 12:00 PM
1 Replies and 2310 Views Spice Models  2310  1 Started by  J Henzel Are there any spice models available for the CR3110-3000 current transformers Thanks JPH
1 2310
by  Tony HodgesJump to last post
09/10/2012 8:33 AM
1 Replies and 2308 Views CR5210 output options  2308  1 Started by  Darren Barnes Are there any custom options available for the CR5210/11 Specifically, I would like to use the output to operate a relay at full-scale voltage output. I don't want to wire to a discrete FET, then to a relay. Would prefer a ready-made module. Basically, I need a current switch that will kickout another circuit at 300 ADC. Thanks.
1 2308
by  Tony HodgesJump to last post
08/22/2012 10:06 AM
3 Replies and 3135 Views CR5300 Input Impedance  3135  3 Started by  Nathan Kingston I would like to know the input impedance of a few different versions of the CR5300. CR5310-5 CR5310-10 CR5310-50 Thanks.
3 3135
by  Tony HodgesJump to last post
06/21/2012 2:08 PM
1 Replies and 2461 Views CR5210-1  2461  1 Started by  Ed Smith Is the CR5210-1 bidirectional If the 0-5V output version is selected, what is the 0 current and full scale (both directions) output voltage
1 2461
by  Tony HodgesJump to last post
05/15/2012 10:56 AM
3 Replies and 3204 Views Sensing AC current  3204  3 Started by  Jim dePrado I am looking to build a way to automatically turn on the dust collector (220V 30A) in my woodworking shop when one of the other tools is turned on (110V/220V 15-30A). Would it be possible to hook up one/many of your current sensors to the hot leg of each tool's circuit and send that signal to a relay to turn on the dust collector Which products would you recommend Any help would be appreciated. Thanks, Jim
3 3204
by  kevin woodJump to last post
05/10/2012 12:30 AM
1 Replies and 2340 Views Transducer Mechanical Models  2340  1 Started by  Brent Hiller Greetings, I'm wondering if there are STEP models available for for your AC and DC transducers. Thanks.
1 2340
by  Tony HodgesJump to last post
05/09/2012 4:21 PM
2 Replies and 2548 Views Accuracy and time response CR4100 and CR2DARL-500  2548  2 Started by  Samuel Fonseca Soto We are setting up a power logging station and we would like to know if we would get better accuracy and better response time with a CR4470 than a metering current transformer CR2DARL-500 We are able to read 0-10 VDC or up to 5A signals. Any of the monitored equipment will be consuming more than 30A. Any orientation will be appreciated.
2 2548
by  Samuel Fonseca SotoJump to last post
04/18/2012 10:30 AM
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