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| | | •Light Output Intensity and Lamp Current The light output intensity of a lamp is proportional to the lamp current. Figure 10: Light Output Intensity vs. Lamp Current 150 W Super-Quiet Xenon Lamp L2273 | | •Light Output Intensity and Ambient Temperature The light output intensity of a lamp also varies with ambient temperature. This is due to the change in light output intensity resulting from the change in gas pressure with temperature. The ambient temperature must be kept constant to ensure stable lamp operation. Figure 12: Light Output Intensity vs. Ambient Temperature 150 W Super-Quiet Xenon Lamp L2273 | | |
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| | | at +25 °C | | |
| | | tlsxb0133ea | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RATED LAM (RECOMME | PCURRENT NDED: 8.5 A) | | | | | | | | | | | | | | | | |
| | | >- CO Z LU hZ | | |
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| | | tlsxb0135eb | | DETECTOR: S1226 | |
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| | | hD Q_ hD O | | |
| | | CO Z LU I-Z | | |
| | | 120 | | |
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| | | I-Z) Q_ I-Z) O | | |
| | | 110 | | |
| | | hI CD | | |
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| | | LU < LU IT | | |
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| | | 100 | | |
| | | I— I CD | | |
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| | | LU > I-< _1 LU LT | | |
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| | | 90 | | |
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| | | LAMP CURRENT (A dc) | | |
| | | 80 | | |
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| | | 0 | | 10 20 30 40 50 60 70 | | |
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| | | 200 W Super-Quiet Mercury-Xenon Lamp L2423 | | |
| | | AMBIENT TEMPERATURE (°C) | | |
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| | | •Light Output Intensity and Operating Time The light output intensity decreases over operating time. This is because of a loss of glass transmittance caused by blacking of the industrial bulb wall due to evaporation of the cathode materials and solarization effect of ultraviolet radiation. Figure 13: Light Output Intensity vs. Operating Time 150 W Super-Quiet Xenon Lamp L2273 DETECTOR: S1226 LAMP CURRENT: 8.5 A dc tlsxb0136ea at +25 °C | | |
| | | at +25 °C | | |
| | | tlsxb0088eb | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RATED LAM (RECOMME | P CURRENT NDED: 8.0 A) | | | | | | | | | | | | | | | | |
| | | >- CO Z LU hZ | | |
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| | | hD L~L hD O | | |
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| | | hI CD | | |
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| | | 120 | | |
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| | | LU < LU | | |
| | | >- CO z LU I-Z | | |
| | | 100 | | |
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| | | 80 | | |
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| | | I— Q_ IO | | |
| | | LAMP CURRENT (A dc) | | |
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| | | 60 | | |
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| | | II CD | | |
| | | •Initial Stability of Light Output Intensity After the lamp lights up, the light output intensity varies until the gas pressure inside the bulb reaches thermal equilibrium. It takes several minutes to reach the maximum light output. Figure 11: Initial Stability of Light Output Intensity | | |
| | | 40 | | |
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| | | LU > I-< _1 LU LT | | |
| | | 20 | | |
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| | | 0 | | |
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| | | 0 | | 500 | | 1000 | | 1500 | | 2000 | | 2500 | | 3000 | | |
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| | | OPERATING TIME (h) 200 W Super-Quiet Mercury-Xenon Lamp L2423 | | |
| | | DETECTOR: S1226 at +25 °C | | |
| | | tlsxb0134eb | | |
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| | | | | | | | | | | | | | | | | | | | | | | /f | | | | | | | | | | | | | | | | | | | x150 W SUPER-QUIET XENON LAMP L2273 | | | | | | | | | | | | | | | | | | | | | 2 | 00 W SUPER-QUIET MERCURY-XENON LAMP L2423 | | | | | | | | | | | | | | | | | | | | | | |
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| | | LAMP CURRENT: 8.0 A dc WAVELENGTH: 365 nm at +25 °C | | |
| | | >- CO z LU hZ | | |
| | | tlsxb0087ec | | |
| | | 100 | | |
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| | | 120 | | |
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| | | >- CO Z LU I-Z | | |
| | | 80 | | |
| | | 100 | | |
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| | | hD Q_ hD O | | |
| | | 60 | | |
| | | 80 | | |
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| | | I— Q_ IO | | |
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| | | hI CD | | |
| | | 40 | | |
| | | 60 | | |
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| | | LU < LU IT | | |
| | | |
| | | I CD | | |
| | | 20 | | |
| | | 40 | | |
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| | | LU > < _1 LU LT | | |
| | | 0 | | |
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| | | 20 | | |
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| | | 0 | | 10 15 20 OPERATING TIME (min) | | |
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| | | 0 200 400 600 800 1000 1200 1400 1600 1800 2000 OPERATING TIME (h) | | |
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| | | 6 | | |
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