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The Checkline DT-721 and DT-725 Digital Stroboscopes are highly stable, industrial-quality instruments for non-contact RPM measurement as well as for inspection and observation of moving parts by ?freezing? or ?slowing down? the action. A ?Kit? option is offered for both models which also includes a carrying case and spare flash tube at minimal additional cost. External Trigger Operation: Suitable for applications requiring external control of the flash rate using a sensor or other input device. An external power source may be required.
 Features:
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AC or battery-powered models
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Highly accurate speed control with drift-free operation
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Easy-to-use controls with bright LED display
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Instant double (2x) and half-rate (ö2) flash selection
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Accepts input from sensor for external flash triggering
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Phase shift adjustment permits movement of objects to desired position for convenient observation  -
Extremely lightweight and rugged Complete Kit: Optional Complete Kit is offered for both models which also includes a carrying case and spare flash tube at minimal additional cost.
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Flash Range: |
40.0 - 12,500 FPM |
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Phase Shift: |
0 - 359ø (Internal Mode) |
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Accuracy: |
ñ 0.02% of reading |
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Operating Time: |
1 hour (Model 725 only) |
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Resolution: |
(0.1) 40.0 - 4,999.9 |
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Charging Time: |
15 hours |
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(0.2) 5,000.0 - 7,999.8 |
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Low Battery Indicator: |
Model 725 only |
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(0.5) 8,000.0 - 9,999.5 |
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Operating Temperature: |
32 to 105ø F (0 to 40ø C) |
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(1.0) 10,000.0 - 12,500.0 |
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Weight |
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Display: |
5-Digit LED, 8 mm high |
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Model 721: |
1.50 lbs. (680 g) |
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Flash Tube: |
Xenon, 10 watt |
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Model 725: |
2.75 lbs. (1.25 Kg) |
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Tube Life: |
100 million flashes |
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Power Requirements |
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Flash Duration: |
10 - 15 æs |
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Model 721: |
115 VAC ñ 10%, 50/60 Hz |
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Signal Output: |
NPN Open Collector, 24 VDC max. at 50 mA (150 æs typical) |
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Model 725: |
Internal battery (Lead Acid Rechargeable) |
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External Trigger Input Signal: |
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a) 12 - 24 V DC through a 3-wire NPN sensor (requires external power supply) |
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b) 12 V DC through a 2-wire proximity sensor (Leakage Current 1 mA max. Load current 8 mA min.) |
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c) Switch or Relay Contact |
Kit Descriptions
ELE-DT-725: DT-725 Stroboscope 115VAC Charger
ELE-DT-725-2: DT-725-2 Stroboscope 230VAC Charger
ELE-DT-725-Kit: DT-725 Stroboscope, 115VAC Charger, Carrying Case and Spare Flash Tube
ELE-DT-725-2-Kit: DT-725-2 Stroboscope, 230VAC Charger, Carrying Case and Spare Flash Tube
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