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SPECIFICATIONS EXTECH 461995: COMBINATION CONTACT/LASER PHOTO TACHOMETER
- General Specifications
Circuit: Custom one-chip LSI microprocessor circuit
Time base: Quartz crystal 4.194 MHz
Display: Reversible 5 digit 0. 10mm (4″) LCD display
Laser light source: Less than 1mW; Class 2 red laser diode (645nm approx.)
Detecting Distance: 50 to 2000 mm (2 to 79″) depending on ambient light and RPM
Memory: Last reading and MIN/MAX readings
Operating Conditions: 0 °C to 50 °C (32 °F to 122 °F); RH 80% Max
Power Supply: 4 x 1.5 V AA batteries
Power Consumption: 20mA DC approx.
Weight: 300g (10.6oz) including battery)
Size: 210 x 67 x 38 mm (8.5 x 2.6 x 1.5″)
Accessories: (4) x 1.5V batteries, reflective tape 600mm (24″), surface speed/rpm rotating attachments, and carrying case
- Range Specifications Extech 461995
— Photo Tachometer
Range: 10 to 99,999 rpm
Resolution: 0.1 rpm (<1000rpm); 1 rpm (>1000 rpm)
Accuracy (%rdg): ± (0.05% + 1d)
— Contact Tachometer
Range: 0.5 to 19,999 rpm
Resolution: 0.1 rpm (<1000rpm); 1 rpm (>1000 rpm)
Accuracy (%rdg): ± (0.05% + 1d)
— Surface Speed
Range: 0.2 to 6560 ft/min
Resolution: 0.1 ft/min (<1000ft/min); 1 ft/min (>1000ft/min)
Accuracy (%rdg): ± (1% + 1d)
— Surface Speed
Range: 0.05 to 1999.9 m/min
Resolution: 0.01 m/min (<100m/min); 0.1 m/min (>100 m/min)
Accuracy (%rdg): ± (1% + 1d)
Introduction Extech 461995
Combination Contact and Non-contact rpm measurements with laser
This Tachometer provides both contact (0. 5 to 19,999 RPM) and non-contact (10 to 99,999 RPM) RPM measurement functions for use in virtually all applications. Laser guided non-contact measurements up to 6.5 ft. (2 meter) away for added safety and convenience. Comes with wheels for linear surface speed (0.2 to 6560 ft. /minute; 0.05 to 1999.9 m/minute) or RPM measurements, 4 AA batteries, 23 in. (0.6 m) reflective tape, carrying case, and user manual.
Features
– Large 0.4” (5 digit) LCD display
– Microprocessor based with quartz crystal oscillator to maintain high accuracy
– Tachometer memory stores last, max and min readings
– Provides wide RPM (photo and contact) and Linear Surface Speed (contact) measurements
– Accurate to 0.05% with max resolution of 0.1rpm in either photo or contact mode
– Complete with tips and wheel for rpm or linear surface speed, four 1.5V AA batteries, reflective tape and carrying case
+ Additional Features
– Measurements from up to 6.5ft from the target for improved safety and accessibility
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