Extech 461950 Data Sheet

Specifications subject to change without notice.
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8/05/08 - R1

Continuous & accurate readings from 5 to 99,990 rpm

Using optional Proximity or Photoelectric sensors

1/8 DIN Panel Tachometer

Features:

• Measure RPMs from 5 to 99,990rpm with

microprocessor quartz crystal accuracy of

0.05% + 1digit

• Resolution from 0.1rpm (5 to 1000rpm) to

1rpm (1000 to 9999rpm) to
10rpm (10,000rpm to 99,990rpm)

• Large 4 digit LED display updates

once per second (rpm greater than 60)

• Unique design permits RPM measurements of a

one hole gear or disk eliminating the need for
special gears

• A pulse is measured when a ferrous

object (stud) passes by sensor

• Powered by: 115/230 VAC 50/60Hz

Dimensions:
Bezel: 3.78 x 1.89 x 2.36" (96 x 48 x 60mm)
Meter: 3.61 x 3.54 x1.66" (92 x 90 x 42mm)
Weight: 13.9oz (397g)
Panel cutout: 3.62 x 1.77" (92 x 45mm)

• Choice of two sensor pickup types:

Proximity sensor designed for target distance of

0.1" (3mm), covers range to 36,000rpm (600Hz);
Photoelectric sensor with target distance
of 0.4" (10mm) and range to 15,000rpm (250Hz);
Both encapsulated sensors include 6 ft.
(1.8m) cable

Ordering Information:

461950 ................Panel Mount Tachometer

461950-NIST ......Panel Mount Tachometer with NIST Certificate

461955 ................Proximity Sensor, max. 36,000 rpm

461957 ................Photoelectric Sensor, max. 6000 rpm

461955

Proximity

461957

Photoelectric