EXTECH 461891: HIGH PRECISION CONTACT TACHOMETER

Key Features

  • Large 5 digit LCD display is easy to read
  • 0.05% basic accuracy
  • Make contact measurements of rotating objects
  • Measure linear surface speeds in ft/min or m/min using three accessory wheels provided
  • Recalls Last/MAX/MIN values

SPECIFICATIONS EXTECH 461891: HIGH PRECISION CONTACT TACHOMETER

  • General Specifications

Circuit: Custom one-chip LSI microprocessor circuit

Time base: Quartz crystal

Display: 5-digit multi function LCD display

Measurements: Rotation Speed 0.5 to 19,999 rpm; Surface Speed 0.2 to 6560 ft/min. 0.05 to 1999.9 m/min

Memory: Last and Max/Min readings

Sampling Time: 1 second

Operating Temperature/RH: 32 °F to 122 °F (0 °C to 50 °C) / <80% RH

Power Supply: 4 x 1.5V AA batteries

Power Consumption: Approx. 10 mA

Weight: 0.62 lb (280 g) including batteries

Dimensions: 8.2 x 2.8 x1.5″ (208 x 72 x 37 mm)

Accessories: Cone rpm adaptor, funnel rpm adaptor, surface speed test wheel, and carrying case

  • Range Specifications

rpm

Range: 0.5 to 19,999 rpm

Resolution: 0.1 rpm (0.5 to 999.9 rpm); 1 rpm (over 1000 rpm)

Accuracy: + (0.05% rdg +1d) @23+ 5oC

+ ft/min

Range: 0.2 to 6560 ft/min

Resolution: 0.1 ft/min (0.2 to 999.9 ft/min); 1 ft/min (over 1000 ft/min)

Accuracy: ± (1% rdg + 1 digit)

+ m/min

Range: 0.05 to 1999.9 m/min

Resolution: 0.01 m/min (0.05 to 99.99 m/min); 0.1 m/min (over 100 m/min)

Accuracy: ± (1% rdg + 1 digit)

Introduction Extech 461891

Fast and accurate rpm and surface speed measurements to 20,000rpm

The 461891 is a contact Tachometer. Surface wheels measure contact surface speeds (10 to 9,999 rpm) of rotating objects. The memory button holds last reading and recalls min/max readings display. Complete with wheels for linear surface speed (0.2 to 6560 feet/minute; 0.05 to 1999.9 meters/minute) or RPM measurements. Comes with cone tip, flat tip and spare wheel for surface speed measurements, four AA batteries, carrying case, and user manual.

Features

– Large 5 digit LCD display is easy to read
– Built-in memory recalls last MAX/MIN value stored
– Autoranging with 0.05% accuracy
– Contact measurements from 0.5 to 19,999rpm plus linear surface speed measures in ft/min or m/min
– Simply contact rotating object with sensor tip and read
– Accessory wheels enable tachometer to measure linear surface speeds
– Complete with cone tip, flat tip and spare wheel for surface speed measurements, four 1.5V AA batteries and case
Brand

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