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Extech 461891 High Precision Contact Tachometer
Item #:
EXT-461891
Brand:
Extech
Share this product:
461891 High Precision Contact Tachometer by Extech
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
Circuit | Custom one-chip LSI microprocessor circuit |
Time base | Quartz crystal |
Display | 5-digit multi function LCD display |
Measurement | 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 |
Measurement |
Range |
Resolution |
Accuracy |
RPM |
0.5 to 19,999 rpm |
0.1 rpm (0.5 to 999.9 rpm) 1 rpm (over 1000 rpm) |
+ (0.05% rdg +1d) @ 23+ 5°C |
ft/min |
0.2 to 6560 ft/min |
0.1 ft/min (0.2 to 999.9 ft/min) 1 ft/min (over 1000 ft/min) |
± (1% rdg + 1 digit) |
m/min |
0.05 to 1999.9 m/min |
0.01 m/min (0.05 to 99.99 m/min) 0.1 m/min (over 100 m/min) |