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Phone: 01728 723306 Fax: 0871 247 4524 Pester: 07970 865730 2 Station Terrace WOODBRIDGE IP13 9EF UK
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Sine tests apply either a single frequency or sweep for the operator to evaluate a unit's distortion. It can also apply a single frequency so NWin can measure the unit's output level.
Prompt
- The text specified is presented to the operator at the test end in the form
'Prompt (Y/N)?'. Whether 'Y' or 'N' is a pass is set by Yes/No
on the main test window. We
have found that on the whole operators are less intimidated if asked to
confirm a unit
isn't a bad one rather than affirm it's a good
one. Whilst waiting for the operator's response NaTKiT will continue to apply whatever is the last tone of the test.
Measure
- When set only the Low
(Hz) frequency and NWin, not
the operator, decides pass or fail by measuring the input and applying it to the
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High
Limit (dB) - The upper limit and can be set in the range
0 - (Low
Limit (dB) + 1) dB.
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Low
Limit (dB) - The upper limit and can be set in the range
-99 - (High
Limit (dB) - 1) dB.
To help set High Limit (dB) and Low Limit (dB) when Run is clicked NWin makes and displays six measurements helping the Engineer determine if the test is stable or being affected by noise.
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