Extech 461895 Data sheet

www.extech.com

4/3/08 - R1

Combines both contact and non-contact models

Choice of Laser-guided model for greater distance non-contact measurements

Combination Photo/Contact Tachometers

Features:

• Unique display where characters reverse direction

depending on measurement mode you are in

• Large 0.4” (5 digit) LCD display

• Microprocessor based with quartz crystal oscillator

to maintain high accuracy

• Tachometer memory stores last, max and min readings

• Provides wide RPM (photo and contact) and

Linear Surface Speed (contact) measurements

• Accurate to 0.05% with max resolution of 0.1rpm

in either photo or contact mode

• Complete with tips and wheel for rpm or linear surface speed,

four 1.5V AA batteries, reflective tape and carrying case

Additional Features (461995):

• Narrow beam Laser photo tachometer

for accurate non-contact RPM measurements

• Measurements from up to 6.5ft from the

target for improved safety and accessibility

Ordering Information:

461895 ................Combination Contact/Photo Tachometer

461895-NIST ......461895 with NIST certificate

461995 ................Laser Photo/Contact Tachometer

461995-NIST ......461995 with NIST certificate

461937 ................Spare Reflective Tape (10pk, 23" each roll)

461990 ................Set of Spare Contact Wheels (2 sets of 3)

Specifications for both models Photo mode Contact mode

Range (RPM) 461895 5 to 99,999 0.5 to 20,000 Range (RPM) 461995 10 to 99,999 0.5 to 20,000 Accuracy 0.05% rdg +1 digit Sampling Time 1 Sec > 60rpm 1 Sec > 6rpm Surface Speed 0.2 to 6560ft/min

0.05 to 1999.9m/min

Resolution 0.1rpm (< 1,000 rpm)

1rpm (>1000rpm) Power 4 AA batteries Dimensions 8.5 x 2.6 x 1.5”(215 x 65 x 38 mm) Weight 10.6 oz (300 g)