Digital Stroboscope DT-311A
1 Year Warranty
- Range: 40-35,000 RPM/FPM
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Range: 40-35,000 RPM/FPM
Portable, highly stable and accurate, industrial-quality tools for non-contact RPM measurement, inspection and observation of moving parts by “freezing” or “slowing down” the action.
| Highest accuracy and most stable flash rate |
 Easy-to-read LED display |
| Easy-to-operate controls |
| Detachable pistol-grip handle |
| Provides 12 V DC power for external sensors |
| Accepts external trigger input and provides synchronizing pulse output |
| Phase shift for best view and flash photography |
| Flash rate control |
| Instant double and half-rate flash selection for error-free reading |
| Flash Range | 40-35,000 FPM |
| Accuracy | Internal Mode: ±0.01% of reading External Mode: ±0.01% or ± 1 digit |
| Resolution | 0.1 FPM: 40.0 – 4,999.9 FPM 0.2 FPM: 5,000 – 7,999.8 FPM 0.5 FPM: 8,000 – 9,999.5 FPM 1 FPM: 10,000 – 35,000 FPM |
| Drift | ±0.01% per degree C |
| Update Time | Internal Mode: 0.2 seconds External Mode: ±0.01% or ± 1 digit |
| Input Signal | LO level: 0-0.4 VDC HI level: 2.5 – 12 VDC — or open collector (npn) pulse width 50us min |
| Output Signal | Synchronous, 400 µs pulse, 0 to approx. ± 12 V DC 1000 ohms impedance |
| Display & Rate | Divide or multiply by 2, selectable |
| Operating Temperature | 32-104° (0-40°C) |
| Display | 5 digits, 10 mm high, red LED |
| Flashtube | Xenon, 10 W maximum |
| Flash Duration | 10-30 µs |
| Sensor Power Supply | 12 VDC ± 0.5V (50ma) |
| Power Requirements | 115 V or 230 V AC (specify), 50/60 Hz, 30 VA |
| EXTERNAL MODE ONLY | |
| Phase Shift | 0 – 359° with 1° resolution or 0 – 333 ms from 200 – 3,000 FPM |
| Input Impedance | 10,000 ohms |
| Weight | 2.6 lbs. (1.2 kg) |
| Dimensions | 4.7 x 4.7 x7.2″ (120 x 120 x 183mm) |
Light Output (LUX) vs Distance
 at 30 cm Distance, 6000 flashes/min (FPM) |
