轉速計，又名轉速表、轉速儀，是機械行業(yè)的儀器之一，用來測定電機的轉速、線速度或頻率

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轉速計，又名轉速表、轉速儀，是機械行業(yè)的儀器之一，用來測定電機的轉速、線速度或頻率。常用于電機、電扇、造紙、塑料、化纖、紡織、汽車、飛機、輪船等制造業(yè)。大多常用的為手持離心式轉速計。

轉速計，又名轉速表、轉速儀，是機械行業(yè)的儀器之一，用來測定電機的轉速、線速度或頻率。常用于電機、電扇、造紙、塑料、化纖、紡織、汽車、飛機、輪船等制造業(yè)。大多常用的為手持離心式轉速計。美國Checkline旗下的轉速計一般為數(shù)字式，有接觸式和非接觸式兩種測量。非接觸式采用光電器件測量，無連接軸，對被測件無任何影響，提高測量精度。

例如Checkline DT-105A-12CBL型是一款手持接觸式轉速計，法蘭和橡膠接觸表面設計，再配備周長為12英寸的主輪，使得速度測量更加安全精準。

The DT-105A-12CBL is designed to measure elevator cable speed in feet per minute, meters per minute and other measuring units. It is supplied with a rugged 12" circumference wheel with large flanges to keep the cable in contact with the surface. Delivering superior performance and accuracy over more conventional flat surface wheels

Employing a non slip rubber contact surface, the wheel adds safety and accuracy while measuring speeds on Elevator governor cables, wire and cable reels, extruded tubing and many other applications

Built-in memory for last, maximum, minimum and 10 separate readings
Rugged cast aluminum housing
Includes Traceable calibration Certificate
LCD Version for use in sunlight and for longest battery life (DT-105A-12CBL)
LED version for use in poorly lit or dark environments (DT-107A-12CBL)

Display Range	0.10 to 25,000 rpm with floating decimal
Accuracy	0.10 to 999.99 rpm: ±0.06 rpm 1,000.0 to 9,999.9 rpm: ±0.6 rpm 10,000 to 25,000 rpm: ±0.006% rpm
Display	DT-105A: (LCD MODEL) 5 digit 0.47" (12mm) high DT-107A: (LED MODEL) 5 digit 0.4" (10mm) high
Measurement Units	Per Second: Inches, Centimeters (optional, inquire) Per Minute: Revolutions, Inches, Feet, Yards, Meters Per Hour: Miles, Kilometers (optional, inquire) Total: Revolutions, Inches, Feet, Yards, Centimeter, Meters
Memory System	13 readings are stored in memory and retained for 5 minutes (last, max., min., and 10 measurements)
Detection	Optical coupler, 60 pulses/rev.
Update Time	1 second (typical)
Over-Range Indicator	Flashing numerals
Batteries	2 - 1.5 V AA
Battery Life	Approx. 65 hrs. (DT-105A) Life: Approx. 40 hrs. (DT-107A)
Operating Temp	32 to 113° F (0 to 45° C)
Accessories Included	2 cone adapters, 1 funnel adapter, 3-1/2" extension shaft, 1 surface speed wheel (6" circumference), carrying case, operating instructions
Product Weight	0.9 pounds (400 grams) (without wheel)
Dimensions	7.3" L x 2.4" W x 1.8" H
Warranty	2 years
Country of Origin	Taiwan