Lutron รุ่นDT-2349เครื่องวัดความเร็วรอบแสดงผลแบบดิจิตัล,Stroboscope,digital synthesis,high intensity light,meas.range:60～32,000RPM.

Specification
Display :5 digits ( 0 to 99999 ) LCD display.
Flash adjust range :60 to 30,000 RPM/FPM.
* RPM : round per minute.
* FPM : flash per minute.
Resolution :0.1 RPM :< 1,000 RPM.
1 RPM :≧ 1,000 RPM
Function buttons :Digital rotate knob, x 2 button, ÷ 2 button, + button, - button,
Accuracy :± (0.05 % + 1d)
* Spec. tested under the environment RF Field Strength less than 3 V/M & frequency less than the 30 MHz only.
Power Supply :110 Vac ± 10%, 50/60 Hz. or 220 Vac ± 10%, 50/60 Hz. or 230 Vac ± 10%, 50/60 Hz.
Circuit :*Microcomputer LSI circuit & crystal control time base.
*Digital synthesis circuit for the signal adjusting.
Signal Stability :The signal adjusting circuit is used the digital synthesis circuit, the output signal will existing high stability and not change.
Power Consumption :DC 2.4 A (3600 FPM)
Operating Temp. :0 to 50 ℃ (32 to 122 ℉).
Operating Humidity :Less than 80% R.H.
Dimension :21 x 12 x 12 cm (8.3 x 4.8 x 4.8 inch).
Weight :1Kg/2.2 LB.
Housing :Compact and impact plastic injection case with plastic mirror type reflector.
Calibration :Crystal time base and microprocessor circuit, don't necessary take any external calibration process.
Accessories Included :Operation manual, AC( 100V to 240V ) to DC 9V adapter.

Flash Tube Specification
Flash tube :Xenon lamp.
Flash Duration :Approximately 60 to 1,000 microseconds.
Flash color Temp. :Xenon white 6,500 K degree.
Flash energy :4 Watts-seconds (joules).
Beam Angle :80 degrees.
Flash tube replacement :It is required to change the flash tube when the instrument start to flash irregularly at speeds > 3600 RPM/FPM.
Operating duty Cycle :For prolong life and safety, please adhere to the following operation duty cycle: < 2000 RPM - 2 hours
2001 to 3600 RPM - one hour
3601 to 8000 RPM - 30 minutes
> 8000 RPM - 10 minutes.