Velleman SCR100 User Manual
Atlas SCR
Thyristor and Triac Analyser
Model SCR100
User Guide
© Peak Electronic Design Limited 2004/2008
In the interests of development, information in this guide is subject to change without notice - E&OE
electronic design ltd
Atlas SCR User Guide January 2008 – Rev 3
Want to use it now?
We understand that you want to use your Atlas SCR right now.
The unit is ready to go an d you should have little need to refer
to this user guide, but please make su re that you do at least take
a look at the notices on page 4!
Contents Page
Introduction .........................................................................3
Safety Considerations..........................................................4
Analysing components.........................................................5
SCRs ..............................................................................6
Triacs..............................................................................7
Notes on SCRs (Thyristors) and Triacs...............................8
Gate Sensitivity..................................................................10
Care of your Atlas SCR......................................................11
Battery Replacement....................................................11
Self Tests......................................................................12
Appendix A – Accessories.................................................13
Appendix B – Technical Specif ications.............................14
Warranty Information........................................................15
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Atlas SCR User Guide January 2008 – Rev 3
Introduction
The Atlas SCR is an advanced instrument designed specifically
for the analysis of SCR (Thyristor) and Triac devices.
Summary Features:
• Automatic component identification.
• Automatic pinout identification.
• Displays actual trigger (gate) current classification.
• Fixed load current of 100mA.
• Device test voltage of 12V regardless of battery condition.
• Suitable for devices requ iring gate currents up to 90mA.
• Automatic and manu al power-off.
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Atlas SCR User Guide January 2008 – Rev 3
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 pers onal
injury, damage to the equipment under test, damage to the
Atlas SCR and invalidation of the manufacturer's
warranty.
“Analysis of discrete, unconnected components is
recommended.”
The Atlas SCR is designed to provide accurate and reliable
information for the majority of supported component types
(SCRs and Triacs) as described in the technical specifications.
Testing of other component types or component networks may
give erroneous and misleading results.
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Atlas SCR User Guide January 2008 – Rev 3
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.
The Atlas SCR will start component analysis when the on/test button is
pressed.
The analysis typically takes less than a second to complete, after which the
results of the analysis are displayed. Information is displayed a “page” at a
time, each page can be displayed by briefly pressing the scroll/off button.
Analysing...
If the Atlas SCR cannot recognise the component connected to the test probes,
or the component under test is outside the specifications covered by this
instrument, the following message will
be displayed:
Note:
The arrow symbol on the display indicates that more pages are
No SCR or Triac
detected
available to be viewed.
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