Alat Ukur Kelelahan Mata/Flicker frequency |
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Type |
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Model 12021A |
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Product |
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lafayettelifesciences |
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SPECIFICATIONS |
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Power Supply: 12 VDC @ .5A, 2.1mm center positive DC plug |
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Fuse: 0.5A, 5x20mm fast blow |
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Frequency: 1.0 - 100.0Hz in 0.1Hz increments with an error of .05% |
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Slide Holder: 2" x 2" (5.08x5.08 cm) 35mm holder for optional Model 12100 |
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neutral density filters with 0.1% to 50% light transmission |
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Auto Mode Ramp Rates: options of 0.5, 1, 2, and 4Hz per second |
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Analog Input: 3.5mm mono phone plug with voltage range from 0.1 - 10 V for 1.0 - 100.0Hz flicker rate |
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Absolute Maximum Input: 14V |
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External Initiate: SPST normally open hand-held switch with RCA input |
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External Response: Dual SPST normally open hand-held switch with 3.5mm stereo plug |
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RS-232C Port Settings: 9600 baud, no parity, 8 data bits, 1 stop bit |
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Typical Luminance: 58Cd/m2 |
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Viewing Angle: 1.9° |
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Light/Dark Ratio: 1:1 |
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Stimulus Color: White |
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Viewing Chamber Mask: Hypo-allergenic black silicone Mask may be cleaned with an alcohol wipe. |
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Control Size: 8.625"W x 6.5"L x 3.25"H (21.9 x 16.5 x 8.3 cm) Weight: 1.8 lb (0.82 kg) |
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Viewing Chamber Size: 7"W x 19"L x 16"H (17.8 x 48.3 x 40.6 cm) Weight: 7.4 lb (3.36 kg) |
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