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DT-311A Stroboscope

The DT-311A Stroboscope provide the illusion of "stopped motion": by adjusting the strobe’s flash rate,
equipment and printing appear to be standing still or in slow motion.
Our strobes also measure rotational (RPM) or reciprocating (strokes per minute) speeds with the same
precision as an electronic digital tachometer.

DT-311A Stroboscope

Model  Description 
DT-311A  Stroboscope  (115VAC)
DT-311A  Stroboscope (220 VAC, 50/60 Hz) 

Stroboscope is ideally suited for printing inspection, motion analysis, preventive maintenance
and speed measurement of repetitive motion, our strobes provide timely data on vibrating parts,
leaks, spray patterns and a variety of industrial and scientific operations.
Don’t be fooled… while the DT-311A stroboscope is extremely easy to operate via its lightweight
and compact design, its rugged metal construction provides unequaled reliability in the harshest
environments.

DT-311A Stroboscope
Model  DT-311A 
Flashing Range  40.0 - 35,000 fpm (flashes per minute) 
Accuracy  ±0.01 % of reading 
Resolution  0.1 fpm: 40.0 - 5,000 fpm
0.2 fpm: 5,001 - 8,000 fpm
0.5 fpm: 8,001 - 10,000 fpm
1 fpm : 10,001 - 35,000 fpm 
Phase Shift  Use +/- push buttons (360° in 6 seconds) 
Display Update Time  0.2 seconds approx. 
Output Signal  Synchronous, 400 μsec.
Pulse output, 0 to +12 VDC amplitude (approx.), 4.7 KΩ impedance 
Rate Multiplier Divider  Multiply by 2, divide by 2 
Flashing Range  0.0 to 35,000 fpm 
External Mode
Accuracy 
±0.01 % ±1 digit 
Phase Shift  0 to 359° with 1° resolution 
Delay Time  0 to 2,000 msec from 40 - 10,000 fpm 
External Trigger Input Signal  LO level: 0 -0.8 VDC, HI level: 2.5 - 12 VDC or open collector (NPN),
pulse width 50 μsec min 
Input Impedance  4.7 KΩ to 12 V / 6.8 KΩ to 0 V 
Display  5 digits, 0.4" (10 mm) high, LED 
Flash Tube
Power/Life 
Xenon, 10 W max. (100 million flashes) 
Flash Duration  10 - 40 μsec 
Sensor Power Supply  12 VDC (40 mA) 
Low Battery Indicator  N/A 
Power Requirement  115 VAC or 220 VAC ±10 % 60/50 Hz, 30 VA (specify voltage) 
Operating Temperature  32° - 104°F ( 0 - 40°C ) 
Weight  2.6 lb (1.2 kg) 
Dimensions  7.28" L x 4.72" W x 4.72" H (185 mm x 120 mm x 120 mm) 
Warranty  1 year 
Optional Accessories  Carrying case, sensors, SG-300 strobe guard, SAS-DT300 flexible swing arm, daisy chain cables, NIST traceable certificate