Extech Instruments 461920 Manuel utilisateur

USER GUIDE

Model 461920

Laser Photo Tachometer

461920-en-GB_V2.4 12/14

Introduction

Congratulations on your purchase of Extech's Mini Laser Photo Tachometer, Model 461920. This

Tachometer provides non-contact RPM and Revolution count measurements. The laser pointer

beam provides accurate long distance measurements for photo tachometer measurements. This

meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable

service.

Meter Description

1. Photo Tachometer sensor and laser source

2. MEASURE button

3. MEMORY button

4. MODE button

5. AC Power Adaptor

6. Battery compartment (rear)

CAUTION: Rotating objects can be dangerous. Use extreme care.

WARNING: Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not

normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of

time.

Laser complies with: FDA 21 CFR 1040.10 and 1040.11, IEC 60825-1 (2001-2008) Edition 1.2

EN 60825-1:1994/A11:1996/A2:2001/A1:2002

461920-en-GB_V2.4 12/14

Meter Operation

RPM Measurement Mode

1. Apply an appropriately (0.5”/12mm) sized square piece of reflective tape to the surface of the

object under test.

2. Point the meter toward the device under test at a distance of 2" to 20" (50 to 500mm).

3. Press the Measure button (MEAS) and align the laser light beam straight on with the reflective

tape.

4. Verify that the ((( ))) Monitor Indicator appears on the LCD when the reflective tape passes

through the light beam.

5. To set the units to RPM, release the MEAS button and press the MODE button.

6. When the Measure button is released the last reading will remain in the display for 5 to 10

seconds before the Auto Power Off feature turns the meter off.

7. With the meter OFF, press the MEM (memory) button to recall the MAX, MIN and LAST rpm

values.

COUNT Mode

1. Apply an appropriately (0.5”/12mm) sized square piece of reflective tape to the surface of the

object under test. Note: Reflective tape may not be necessary.

2. Point the meter toward the device under test at a distance of 2" to 20" (50 to 500mm).

3. Press the Measure button (MEAS) and align the laser light beam with the reflective tape.

4. Verify that the ((( ))) Monitor Indicator appears on the LCD when the reflective tape passes

through the light beam.

5. To set the units to REV, release the MEAS button and press the MODE button.

6. When the Measure button is released the last reading will remain in the display for 5 to 10

seconds before the Auto Power Off feature turns the meter off.

7. With the meter OFF, press the MEM (memory) button the last count (REV) from the last

measurement period.

Measurement Notes

1. Bright ambient light may interfere with the reflected light beam. Holding the tachometer closer to

the target or shading the target area may be necessary in some cases.

2. The non-reflective are must always be larger than the reflective area.

3. If the shaft or rotating object is normally reflective, it must be covered with black tape or paint

before the reflective tape is applied.

4. To improve repeatability of low rpm measurements, apply additional squares of reflective tape.

Divide the reading shown on the display by the number of pieces of reflective tape squares to

calculate the actual rpm.

461920-en-GB_V2.4 12/14

Battery Replacement

The low battery indication appears as “ " on the display. To replace the batteries, loosen the two Philips head

screws securing the rear battery cover and lift the cover off. Replace the 9V battery and replace cover.

You, as the end user, are legally bound (Battery ordinance) to return all used batteries and accumulators;

disposal in the household garbage is prohibited!

You can dispose of your used batteries / accumulators at collection points in your community or wherever batteries /

accumulators are sold!

Disposal: Follow the valid legal reulations with respect to the disposal of the device at the end of its lifecycle

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)

Tachometer accuracy ± (0.05% reading + 1digit)

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 (%reading)

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 ± 1 count

Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform

www.extech.com

Autres manuels pour 461920

Table des matières

Autres manuels Extech Instruments Instrument de mesure

Extech Instruments

Extech Instruments GRT350 Manuel utilisateur

Extech Instruments

Extech Instruments LT510 Manuel utilisateur

Extech Instruments

Extech Instruments TB400 Manuel utilisateur

Extech Instruments

Extech Instruments 407706 Manuel utilisateur

Extech Instruments

Extech Instruments 421509 Manuel utilisateur

Extech Instruments

Extech Instruments EC150 Manuel utilisateur

Extech Instruments

Extech Instruments Oyster 341350A-P Manuel utilisateur

Extech Instruments

Extech Instruments MA160 Manuel utilisateur

Extech Instruments

Extech Instruments 407790A Manuel utilisateur

Extech Instruments

Extech Instruments 401025 Manuel utilisateur

Extech Instruments

Extech Instruments TKG100 Manuel utilisateur

Extech Instruments

Extech Instruments 407113 Manuel utilisateur

Extech Instruments

Extech Instruments RPM10 Manuel utilisateur

Extech Instruments

Extech Instruments MA435T Manuel utilisateur

Extech Instruments

Extech Instruments ExStik RE300 Manuel utilisateur

Extech Instruments

Extech Instruments PH100 Manuel utilisateur

Extech Instruments

Extech Instruments 382152 Manuel utilisateur

Extech Instruments

Extech Instruments FM300 Manuel utilisateur

Extech Instruments

Extech Instruments 461920 Manuel utilisateur

Extech Instruments

Extech Instruments AN300 Manuel utilisateur

Extech Instruments

Extech Instruments 407303 Manuel utilisateur

Extech Instruments

Extech Instruments MO210 Manuel utilisateur

Extech Instruments

Extech Instruments MA610 Manuel utilisateur

Extech Instruments

Extech Instruments DO700 Manuel utilisateur

Manuels Instrument de mesure populaires d'autres marques

Suaoki

Suaoki D40 Manuel utilisateur

Elster

Elster BK-G1.6 Manuel utilisateur

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuel

Duratool

Duratool D03128 Manuel utilisateur

Vega

Vega VEGAPULS 65 Manuel utilisateur

Tonghui

Tonghui TH2618B Manuel utilisateur

Tenmars

Tenmars TM-801 Manuel utilisateur

MSR

MSR 145 Manuel utilisateur

TPS

TPS WP-82 Manuel utilisateur

ELMETRON

ELMETRON CP-511 Manuel utilisateur

PCB Piezotronics

PCB Piezotronics 003C30 Manuel utilisateur

Tenma

Tenma 72-10465 Manuel utilisateur

Endress+Hauser

Endress+Hauser Proline Promag 50 Caractéristiques techniques

Siemens

Siemens SITRANS F Coriolis FCT030 Manuel de la liste des pièces

KLINGER

KLINGER CMF V Series Manuel utilisateur

EXFO

EXFO FTB-2 Manuel d'exploitation et d'entretien

Keysight

Keysight M8290A Manuel utilisateur

ADTEK

ADTEK MW-5 Manuel utilisateur