I'm develloping systems based on ucontrollers and a variety of wireless devices. The wireless devices have a CE end FCC marking, if I have a device with only a ucontroller I can do the CE marking myself. But if I combine the ucontroller and wireless I need testing (Europe/Netherlands).
My question is: can I do this testing myself and what type of equipment do I need?
Klaus de Jong
I am the creator of the ExactCharge Refrigeration Calculator which is available for SmartPhones, iPhone, and Windows based computers. I would like to create a stand alone calculator of my software for distribution in hvac supply houses but don't know where to start to begin to develop the calculator prototype perhaps using Arduino. We currently have the ability for SI scale so we could distribute the product Wordwide.The ExactCharge Calculator has been available for 6 years and is well appreciated by those who own it. Ritchie Engineering has a stand alone PT device but it does not have near the functionality of the ExactCharge Calculator software. I was hoping you might be able to point me in the right direction. You can view my product at www.exactcharge.com to help gain a better understanding of its abilities. A stand alone version should sell well and have a good profit margin. Any help would be greatly appreciated.
I'd suggest starting with Tektronix "Power Supply Measurement and Analysis Primer". You should be able to dwnload it from: http://www2.tek.com/cmswpt/tidetails.lotr?ct=TI&cs=Primer&ci=14468&lc=EN
Hope that helps!
Please find attached link for software for Tenma 72-8225, if you have any further enquiry, please send me email email@example.com
Its been a while since using an oscilloscope and I got myself loop:i.e. the question might sound a bit daft.
I want to visualise the voltage waveforms on an induction motor and controller. Now, to measure the individual phases I would have a connect the probe to 1 or more of the phases but what do I choose as a ground? Would that be the negative of the DC input?
You have a few options, each with pros & cons:
1) Use a differential probe to measure across each phase.
2) Use a scope with isolated channels. Several handheld models offer that capability, plus the Tektronix TPS2000 series instruments.
3) Measure each phase relative to ground and use maths function on the scope, or offline ona PC) to derive the phase measurements.
In any case DON'T cut your scope's ground lead and float the instrument - it's dangerous and violates numerous safety standards.
Tektronix have an application note on making floating measurements. You can download it from: http://www.tek.com/Measurement/App_Notes/3M_17773/eng/3MW_17773_0.pdf
Tektronix offer a line of frequency counter/timers - the & MCA3000 - but not the Rubidium oscillator devices you are seeking.
Try contacting Quartzlock Ltd. They may have a product that meets your needs. http://quartzlock.com/
Trevor J. Smith| Technical Marketing Manager | Phone: +44 (0)1344 392225 | Mobile: +44 (0)7836) 516853 | www.tektronix.com<http://www.tektronix.com/>
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Jim has worked for Fluke for a little over 31 years working in Manufacturing production and Quality assurance for the first 15 years. In the last 15 years he has focused on technical support as a Application Engineer for all of the Electrical Industrial products such as Handheld Oscilloscopes, Digital Mulitmeters and Power Quality Analyzers. He enjoys the challenge of helping people and the famous saying the only dumb question is the one you didn’t ask are often joked about among his customers.
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