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Summary of Contents for Peak Atlas SCR100
- Page 1 Atlas SCR Triac and Thyristor Analyser Model SCR100 Designed and manufactured with pride in the UK User Guide © Peak Electronic Design Limited 2004/2012 In the interests of development, information in this guide is subject to change without notice - E&OE...
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Page 2: Table Of Contents
April 2012 – Rev 6 Atlas SCR User Guide Want to use it now? We understand that you want to use your Atlas SCR right now. The unit is ready to go and you should have little need to refer to this user guide, but please make sure that you do at least take a look at the notices on page 4! Contents... -
Page 3: Introduction
April 2012 – Rev 6 Atlas SCR User Guide Introduction The Atlas SCR is an advanced instrument designed specifically for the analysis of SCR (Thyristor) and Triac devices. Summary Features: • Automatic component identification (Thyristor or Triac). • Automatic pinout identification. •... -
Page 4: Safety Considerations
April 2012 – Rev 6 Atlas SCR User Guide Safety Considerations WARNING: This instrument must NEVER be connected to powered equipment/components or equipment/components with any stored energy (e.g. charged capacitors). Failure to comply with this warning may result in personal injury, damage to the equipment under test, damage to the Atlas SCR and invalidation of the manufacturer's warranty. -
Page 5: Analysing Components
April 2012 – Rev 6 Atlas SCR User Guide Analysing Components The Peak Atlas SCR is designed to analyse discrete, unconnected, unpowered components. This ensures that external connections don’t influence the measured parameters. The three test probes can be connected to the component any way round. -
Page 6: Scrs
April 2012 – Rev 6 Atlas SCR User Guide Silicon Controlled rectifiers (Thyristors) The Atlas SCR will analyse almost any SCR provided that a gate trigger current of no more than 90mA is required. The three test clips can be connected to the device under test any way round. -
Page 7: Triacs
April 2012 – Rev 6 Atlas SCR User Guide Triacs The Atlas SCR will analyse almost any Triac, provided that it requires a gate trigger current of no more than 90mA. The three test clips can be connected to the device under test any way round. -
Page 8: Notes On Scrs (Thyristors) And Triacs
April 2012 – Rev 6 Atlas SCR User Guide Notes on SCRs and Triacs Silicon Controlled Rectifiers (Thyristors) SCR Turn-On SCRs (Thyristors) act as a controlled diode. They block reverse current at all times, and they conduct in the forward direction only when triggered by a pulse of current to the control (gate) terminal. - Page 9 April 2012 – Rev 6 Atlas SCR User Guide Notes on SCRs and Triacs Triacs Triacs are a well established technology, designed specifically for the solid- state control of AC loads. They offer bi-directional load current switching (for both half cycles of the mains supply) and also bi-directional gate current capability to trigger the device.
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Page 10: Gate Sensitivity
April 2012 – Rev 6 Atlas SCR User Guide Gate Sensitivity The Peak Atlas SCR attempts to trigger the device under test at nine discrete gate currents, in ascending order. First test Trigger test level 1 100A Trigger test level 2... -
Page 11: Gate Voltage
April 2012 – Rev 6 Atlas SCR User Guide Gate Voltage If the Atlas SCR has successfully tested a triac or thyristor, it will be able to display the gate voltage as well as the gate sensitivity. The gate voltage is the voltage measured across the gate and the cathode (for a thyristor) or across the gate and MT1 for a triac. -
Page 12: Care Of Your Atlas Scr
Replacement of the battery is then mandatory. The Atlas SCR will not continue to operate if this condition is encountered. New batteries can be purchased from many retailers and directly from Peak Electronic Design Ltd or an authorised agent. Battery types: Suitable battery type is Alkaline AAA or LR03 (1.5v). -
Page 13: Self Tests
April 2012 – Rev 6 Atlas SCR User Guide Self Test Procedure Each time the Atlas SCR is powered up, a self test procedure is performed. In addition to a battery voltage test, the unit measures the performance of many internal functions such as the voltage and current sources, amplifiers, analogue to digital converters and test lead multiplexers. -
Page 14: Appendix A - Accessories
If your probes become damaged, you may wish to purchase a new set of probes. Replacement Battery Replacement batteries are available from Peak Electronic Design Limited, your agent or any good electronic store. All accessories are available from Peak Electronic Design Limited or an authorised agent. Page 14... -
Page 15: Appendix B - Technical Specifications
Atlas SCR User Guide Appendix B - Technical Specifications All values are at 25C unless otherwise specified. Parameter Minimum Typical Maximum Note Peak test current into S/C 100mA 120mA Peak test voltage across O/C 11.0V 12.0V 12.5V Gate trigger current range (I 0.1mA... -
Page 16: Warranty Information
Warranty Information Peak Satisfaction Guarantee If for any reason you are not completely satisfied with the Peak Atlas SCR within 14 days of purchase you may return the unit to your distributor. You will receive a refund covering the full purchase price if the unit is returned in perfect condition.
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