Extech 461750 Manual de Usario

Extech Cuentakilómetros 461750

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User's Guide

Mini Photo Tachometer Model 461700

Mini Contact Tachometer Model 461750

461700 / 461750 Version 2.3 Mar 2004 2

Introduction

Congratulations on your purchase of the Extech Tachometer.

The Model 461700 Photo Tachometer uses precision optics and reflective tape to

measure the RPM of rotating devices such as fans and gears.

The Model 461750 Contact Tachometer uses convex and concave attachments to

measure RPM. It also has a built-in wheel to measure the linear surface speed of moving

devices such as conveyors and treadmills. Careful use of this tachometer will provide

years of reliable service.

Specifications

General Specifications

Display 5-digit LCD Display

Range selection Automatic range selection

Time Base 4MHz Quartz Crystal

Sampling Time 1 second (>60 rpm); >1 second (10 to 60 rpm)

Photo Tachometer Distance 2 to 12” (5 to 30cm)

Operating Temperature 32 to 122

oF (0 to 50oC)

Operating Humidity 80% RH Max.

Power supply 9V Battery

Battery Life 40 hours (approx.)

Applicable standards EN 50081-1/1992 (EN 55022)

EN 50082-1/1997 (EN 55024)

Dimensions 461700: 4.9 x 2.0 x 1.3” (124 x 51 x 33mm)

461750: 5.9 x 2.0 x 1.3” (150 x 51 x 33mm)

Weight 461700: 4.0 oz. (114g); 461750: 5.0 oz. (142g)

Range Specifications

Measurement Range Accuracy

Rotation

(461700 Photo)

10.000 to 99999 rpm ± (0.1% reading + 2 digits)

Rotation

(461750 Contact)

10.000 to 9999 rpm ± (0.1% reading + 2 digits)

3.0000 to 6560.0 ft/min

1.0000 to 1999.9 m/min

Surface Speed

(461750) 1.0000 to 5000.0 yds/min

± (1.5% reading + 2digits)

461700 / 461750 Version 2.3 Mar 2004 3

Meter Description

1. RPM adaptor (461750 only)

2. Wheel for linear surface measurements (461750 only)

3. Adaptor shaft (461750 only)

4. Model 461700 optics

5. Hand Guard (461750 only)

6. Power ON/OFF and HOLD button

7. Unit of measure selection button (461750 only)

8. LCD Display

9. Alternate Power ON/OFF button

Note that the battery compartment is located

on the rear of the instrument

Display Description

1. Low Battery

2. Data Hold

3. Rotations per minute

4. Meters per minute

Feet per minute

Yards per minute

Especificaciones del producto

Marca:	Extech
Categoría:	Cuentakilómetros
Modelo:	461750
Sexo:	Man
Cantidad por paquete:	1 stuk(s)
Tipo de cierre:	D-ring
Tipo acabado:	Glans
Color principal del producto.:	Zilver
Tinción:	Monochromatisch
Etapa de vida del consumidor.:	Volwassene
Mejor ultravioleta (UV):	Ja
Visera de casco de color:	Transparant
Estilo de timón:	Halve helm
Actividad:	Motor rijden
Yelmovisir:	Ja
Tipo de gorro deportivo:	Helm
Solapa resistente a los arañazos:	Ja
anticondensación:	Ja