Specifications - Extech Instruments 461920 Manual

Specifications

Time base Quartz crystal
Display 5 digit LCD display
Laser light source Class 2 laser < 1mW power; Wavelength is
630 to 670nm
Detecting Distance 2 to 20" (50 to 500 mm)
Sampling Time 0.5sec (over 120 rpm)
Tachometer accuracy ± (0.05% + 1d)
Memory Last reading and MIN/MAX readings
Operating Conditions 32 °F to 122 °F (0 °C to 50 °C); RH 80% Max
Power Supply Internal 9V battery or external AC Adaptor (6
to 9VDC)
Power Consumption 45mA DC approx.
Weight 5.3oz. (151g)
Size 6.3x2.3x1.6" (160x58x39 mm)
Range
Photo
2 to 99,999 rpm
Tachometer
Counter 1 to 99,999 REV
Resolution
0.1 rpm (<1000rpm)
1 rpm (>1000 rpm)
1 count
4 461920-EU V2.1 8/09