Extech 461893 Data Sheet

Specifications subject to change without notice.
Copyright © 2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.

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4/1/08 - R1

Non-Contact rpm and speed measurements

From 2 to 6 inches (50 to 150mm) measurement distance from target

Photo Tachometer

Features:

• Large 5 digit LCD display is easy to read

• Built-in memory recalls last MAX/MIN value stored

• Autoranging with 0.05% accuracy

• Non-contact measurements from 5 to 99,999rpm

• Use reflective marker on object to be measured and

point the integral light beam or accurate readings updated
every second

• 2 to 6 inches (50 to 150mm) measurement

distance (depending on ambient light)

• Complete with 23" reflective tape,

four AA batteries and case

Ordering Information:

461893 ................Non-contact Photo Tachometer

461893-NIST ......461893 with NIST certificate

461937 ................Spare Reflective Tape (5pks, 23" each roll)

Specifications

Range (rpm) 5 to 99,999
Accuracy ±(0.05%rdg +1d)
Sampling Time 1sec > 60rpm
Resolution 0.1rpm (0.5 to 999.9rpm);1rpm (>1000rpm)
Dimensions 6.7 x 2.8 x 1.5" (170 x 27 x 37mm)
Weight 8.8oz (250g)

Non-contact measurement on machinery where
access is limited