ISO-9001, CE, IEC1010
* World's patent, Multi-functions ,one instrument combine Photo Tach .( RPM ) & Contact Tach.( RPM, m/min., ft/min. ).
* Wide measuring range from 0.5 to100,000 RPM.
* 0.1 RPM resolution for the measured value < 1000 RPM.
* High precision with 0.05% accuracy.
* The last value, max., value, min.value will be stored into the memory automatically & can be obtained by pressing Memory Call Button.
* Laser light beam for photo tachometer, long measuring distance.
* Large LCD display
*World's patent, Multi-functions, one
instrument combine Photo Tach.( RPM ) &
Contact Tach. ( RPM, m/min., ft/min. ).
*Wide measuring range from 0.5 to 100,000RPM.
* 0.1 RPM resolution for the measured value< 1000 RPM.
* High precison with 0.05% accuracy.
* The last value, max., value, min. value will be stored into the memory automatically & can be
obtained by pressing MEMORY CALL BUTTON.
* Laser light beam for photo tachometer, long measuring distance up to 50 cm at least.
* Large LCD display
* High visible LCD display gives RPM reading exactly with no guessing or errors & saves battery energy.
* This tachometer used the exclusive one chip MICRO-COMPUTER LSI circuit & crystal time base, offer the high accurate measurement & fast sampling time.
* The use of durable, long lasting components, including a strong, light weight ABS plastic
housing, assures almost maintenance free performance for many years.
* The housing cabinet has been carefully shaped to fit comfortable in either hand.
Measurement& Range
Photo Tachometer : 5 to 99,999 RPM.
Contact Tachometer :0.5 to 19,999 RPM.
Surface Speed :
m/min. - 0.05 to 1,999.9 m/min.
ft/min. - 0.2 to 6,560 ft/min.
Resolution:
RPM:0.1 RPM ( < 1,000 RPM ).1 RPM ( 1,000 RPM ).
m/min.:0.01m/min. ( < 100 m/min. ).0.1m/min. ( 100 m/min. ).
ft/min.:0.1 ft/min. ( < 1,000 ft/mn. ).1 ft/min. ( 1,000 ft/mn. ).
Display:
LCD, size 60 mm x 30 mm.
5 digits with display unit.
Accuracy ± ( 0.05% + 1 digit ).
Time base Quartz crystal.
Circuit
Exclusive one-chip of microcomputer LSI circuit.
Photo Tachometer detecting distance: 50 to 500 mm typically.
Photo Tach.Laser light source
* Less than 1 mW.
* Class 2 laser diode.Red Wave length is 645 nm approximately.
Operating Temperature 0 to 50 ℃ ( 32 to 122 ℉ ).
Operating Humidity: Less than 80% R.H.
Memory Last/Max./Min. value.
Battery 4 x 1.5V AA ( UM-3 ) batteries.
Power Consumption
Photo type :Approx. DC 153 mA.
Contact type :Approx. DC 10 mA.
Size:
215 x 65 x 38 mm.
( 8.5 x 2.6 x 1.5 inch ).
Weight 240 g ( 0.52 LB ).
Accessories Included:
Carrying case..................... 1 PC.
Reflecting tape marks
( 600 mm )......................... 1 PC.
RPM adapter ( CONE )
...................................... 1 PC.
RPM adapter ( FUNEL )
...................................... 1 PC.
Surface speed test wheel
...................................... 1 PC.
Operation manual............ 1 PC.
Patent:
The DT-2258 had following countries patent & patent pending
USA - 4,823,080 GERMANY - G9015492.4, G8708922.0
TAIWAN - 45478 & other countries patent pending.
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