General Specifications; Electrical Specifications - Extech Instruments 461895 User Manual

Specifications

General Specifications

Circuit
Time base
Display
Measurements
Memory
Sampling Time
Detecting Distance -
Photo Tachometer
Operating Temperature
Power Supply
Weight
Size
Accessories

Electrical Specifications

Photo
Tachometer
Contact
Tachometer
Surface
Speed
Surface
Speed
Custom one-chip LSI microprocessor circuit
Quartz crystal
5 digit LCD display
Photo Tachometer - 5 to 99,999 rpm
Contact Tachometer - 0.5 to 19,999 rpm
Surface Speed - 0.2 to 6,560 ft/min
Surface Speed - 0.05 to 1999.9 m/min
Saves LAST, MAX, and MIN readings
Photo Tachometer - 1 sec. (over 60 rpm)
Contact Tachometer - 1 sec. (over 6 rpm)
2 to 6" (50 to 150 mm) depending on ambient light
32 °F to 122 °F (0 °C to 50 °C)
Four 1.5 V AA batteries
0.66 lbs / 300g (including battery)
8.5 x 2.6 x1.5" (215 x 65 x 38mm)
Reflective tape (23"), cone and funnel rpm adaptor, surface
speed wheel, and carrying case
Range
5 to 99,999 rpm
0.05 to 19,999 rpm
0.2 to 6560 ft/min
0.05 to 1999.9 m/min 0.01 m/min (0.05 to 99.99 m/min)
Resolution
0.1 rpm (0.5 to 999.9 rpm)
1 rpm (over 1000 rpm)
0.1 rpm (0.5 to 999.9 rpm)
1 rpm (over 1000 rpm)
0.1 ft/min (0.1 to 999.9 ft/min)
1 ft/min (over 1000 ft/min)
0.1 m/min (over 100 m/min)
3
Accuracy
(% rdg)
±(0.05% + 1d)
± (1% rdg + 1d)
461895-EN V2.1 8/13