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Features
STEST60 Loudspeaker Test (STEST) 6.6.3 |
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Test types: |
| - Time Test (ETC)
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- Frequency Test (TDS) |
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Test types (with pass/fail window option): |
| - Frequency
response |
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- Harmonic tracking |
| - Impedance vs.
frequency |
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- Phase response |
| - FFT |
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- Harmonic distortion |
| - THD |
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- THD plus noise |
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Test sequence: |
| A specific
production sequence can contain from one to 30 lines of screen
text, buzz tests and remote triggering along with the above test
types in any order or combination. |
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Primary features: |
| - Operator or
engineer mode |
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- View detail of each measurement |
| - Smoothing of data
and pass/fail limits |
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- Tracking by serial number information |
| - Output can be
ported to screen, disk or printer |
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- Statistical information on each model or batch |
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- Password protection for Engineer mode |
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- Multiple methods of establishing pass/fail limits |
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- Site license available |
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Modes of
operation: |
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Operator mode: |
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This mode is used by an operator performing routine automated
testing. Options available in Operator mode are limited to those
designed into the test by the engineer. |
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Engineer mode: |
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This mode is used by quality assurance and engineering personnel
who design and supervise the individual measurements and tests
that make up overall product testing. |
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Pass/fail limits: |
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Pass/fail limits can be created in various ways: |
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- Setting an envelope in a specified range above and below a
referenced loudspeaker |
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- Statistical analysis of the measurements of a batch of
loudspeakers |
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- Using the cursor to draw any arbitrary limits |
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Once a pass/fail limit is created, it can be modified manually
by the use of a cursor. |
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Operator mode-main menu commands:
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1.) Select test |
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2.) Do test |
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3.) Set delay |
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4.) Set amp level |
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5.) Graph display (on-off) |
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6.) Saved for future commands |
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7.) Statistics |
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8.) Keyboard/barcode input |
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9.) Stop test |
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10.) Quit |
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Selections 3, 4, 7 and 8 can be enabled or disabled at the
option of the engineer. |
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Bar code reader: |
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To gather information, start tests |
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Overlays: |
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For data gathered in one specific test type; engineer mode only |
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Difference mode: |
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Shows the difference between a measurement and the data in
reference memory |
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External Trigger: |
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External devices can be triggered through a parallel port on the
computer |
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TEF requirements: |
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Works with TEF 20 HI or TEF 20 SHIP with DSP host interface card |
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Printers
supported: |
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Epson FX, Epson LQ, and HP LaserJet |
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Computer system requirements: |
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- Microprocessor- 20 MHz 386 with math coprocessor |
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- RAM- Four megabytes of available memory |
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- Monitor- VGA (640x480) |
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- Hard disk - 80 megabytes |
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- Interface- One unused 8-bit ISA PC slot for installation of
DSP host interface card. Not compatible with the IBM* Micro
Channel Architecture (MCA) bus |
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- Operating system- DOS version 5.0 or newer |
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