Lutron Electronics DT-2289, Operation Manual, Page: 6 / 21

2. SPECIFICATIONS
2-1 General Specifications
Display 5 digits ( 0 to 99999 ) LCD display.
Circuit Exclusive one-chip design microprocessor
LSI circuit.
Measurement
Stroboscope
Unit : FPM ( rotation per minute ).
build in external trigger input.
Laser Photo Tachometer
Unit : RPM ( rotation per minute ).
Contact Tachometer
Unit : RPM ( rotation per minute ).
Surface speed ( ft/min., m/min )
* It should cooperate with optional
contact probe ( TA-35 ).
Sampling Time Approx. 1 second.
Calibration
Crystal time base and microprocessor
circuit, no external calibration process
required.
Operating 0 to 50 ( 32 to 122 )
℃ ℉
Temperature
Operating
Less than 80% R.H.
Humidity
Power Supply
AC( 100V to 240V ) to DC 9V ( 3A )
adapter.
Power
Stroboscope ( 3600 FPM ) :
Consumption DC 2.4 A.
Laser photo Tachometer ( 3600 RPM ) :
DC 50 mA.
Weight 1 Kg ( 2.2 LB ).
Dimensions 21 cmx12 cmx12 cm (8.3"x4.8"x4.8").
2