Extech Instruments 461920 User Guide

461920 V2.1V 5/07
5
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)
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 Specifications
Range Resolution
Accuracy
(%rdg)
Photo
Tachometer
2 to 99,999
rpm
0.1 rpm
(<1000rpm)
1 rpm (>1000
rpm)
± (0.05% + 1d)
Counter
1 to 99,999
REV
1 count

Extech Instruments 461920 Specifications

General

Brand	Extech Instruments
Model	461920
Category	Measuring Instruments
Language	English