Extech Instruments 461830 Manual de usuario

User Manual

Digital Stroboscope Tachometer

Model 461830 and Model 461831

www. .com information@itm.com1.800.561.8187

Introduction

Congratulations on your purchase of the Extech Digital Stroboscope Tachometer. This device

measures the speed of moving parts such as gears, fans, propellers, centrifuges, and pumps. The

stop-motion action of this instrument permits the visual inspection of moving parts. Careful use of

this instrument will provide years of reliable service.

Safety

This symbol, adjacent to another symbol or terminal, indicates the user must refer to the

manual for further information.

This symbol, adjacent to a terminal indicates that, under normal use, hazardous voltages

may be present

WARNING: Do not look directly at the Strobe eflector.

WARNING: This device causes moving objects to appear still. Take precautions against accidental

contact with moving objects.

CAUTION: Do not touch the flash tube.

www. .com information@itm.com1.800.561.8187

Specifications

General Specifications

Circuit Exclusive one-chip LSI circuit with crystal time base

Display 4-digit (10,000 count; 0 to 9999) LED display

Measurement unit RPM (revolutions or rotations per minute) is the speed of the

moving device under test which equals the FPM rate (strobe

flashes per minute)

Operating Temperature 32 to 122oF (0 to 50oC)

Operating Humidity < 80% RH

Power Supply 110VAC (461830) or 220VAC (461831) 50/60Hz ±10%

Power Consumption <25 watts @ 115V

Weight 1kg (2.2 lbs.)

Dimensions 21 x 12 x 12cm (8.3 x 4.8 x 4.8")

Housing construction Impact resistant plastic with plastic l

ens and mirrored reflectors

Electrical Specifications

Measurement Range 100 to 10,000 RPM/FPM

Resolution 0.1 (<1000 RPM/FPM)

1 (1000 to 9999 RPM/FPM)

10 (10,000 RPM/FPM)

Accuracy ± (0.05% + 1 digits)

Sampling Time 1 second

Strobe Flash adjust range LOW: 100 to 1,000 RPM/FPM

HIGH: 1000 to 10,000 RPM/FPM

Strobe Flash tube type Xenon lamp

Strobe Flash duration 60 to 1000 microseconds

Strobe Flash Energy 4 Watt-Seconds (Joules)

Strobe Beam Angle 80o

Strobe Flash Color White 6500oK

Notes: Replace the Xenon lamp when readings appear irregular. To prolong the Xenon lamp life and

ensure safe operation, please adhere to the following recommendations.

A 30-minute use limit < 3000rpm and 5-minute use limit > 3000rpm exists. Do not use the

instrument for periods longer than specified otherwise damage to the instrument may result.

Always permit a 10-minute cool-down between cycles.

Do not touch the Xenon flash tube.

www. .com information@itm.com1.800.561.8187

Meter Description

1. Xenon lamp

2. LED Display

3. Grip handle

COARSE adjust knob

5. FINE adjust knob

6. Power ON/OFF switch

7. Range Select Switch

8. AC power cord and jack

www. .com information@itm.com1.800.561.8187

Operation

Powering the instrument

1. Plug the supplied power cable into the instrument power cable jack.

2. Plug the other end of the cable into an appropriate AC power source. The Model 461830

requires 110VAC and the 461831 requires 220VAC. Do not plug the device into an incorrect

power source otherwise damage to the instrument will result.

3. Use the ON/OFF switch to turn the instrument on or off.

Speed (RPM) Measurements

1. Remove power to the device under test so that it is stationary.

2. Affix a mark or place a small piece of the tape on the device under test.

3. P

5. Read the RPM value on the LED display.

Range Adjustments

1. While measuring, use the RANGE button to select the range as desired

2. The LOW range is used for measurements below 1,000 RPM. The HIGH range is used for

measurements above 1,000 RPM.

Visually inspecting a moving object (stop-motion)

When the speed of the moving object matches the flash rate of the stroboscope, the moving object

appears still. Measure the speed of a moving object as described in the previous sections to obtain

a stop-motion. Once stop-motion is achieved, the FINE adjust knob is used to vary the viewing

perspective of the object under test for visual inspection.

Important note on Test Durations

The Xenon lamp used in this instrument has time restrictions on usage. If the specified test times

and cool-off periods (shown in the table below) are not observed, damage to the instrument can

result and the life span of the lamp can be shortened.

RPM Max. Operating Time Cool-Off Time

< 3,000 rpm 30 minutes 10 minutes

> 3,000 rpm 5 minutes

www. .com information@itm.com1.800.561.8187

Notes on Speed Measurements

Care must be taken to ensure that the mark is providing a 1:1 measurement. Check that there is

only one mark and not two, four, or more stationary marks on the object under test.

instrument will display double, triple, or quadruple the actual speed. A useful method of avoiding

harmonic measurements is to adjust the FINE/COARSE knobs until two images (marks) appear and

then lower the flash rate (via COARSE/FINE knobs) until a single, stationary image appears. This

will be the actual speed.

In the example below, a rotating shaft is affixed with one piece of tape. The illustrations below

represent several possible images that would appear when the strobe beam is pointed to the shaft.

If more than one mark appears (as i

The bold column (column 2) shows the actual speed of the shaft. Column 1 shows a harmonic

-between (Column 2 in bold).

Shaft speed 1000rpm 1000rpm 1000rpm 1000rpm 1000rpm

Strobe flash rate 500rpm 1000rpm 2000rpm 3000rpm 4000rpm

Visible marks 1 12 3 4

Note that the LED display has an AUTO RANGE INDICATOR (flashing decimal at the far right) that

appears when the readings are over 10,000 RPM. In these cases, multiply the displayed reading by

10.

www. .com information@itm.com1.800.561.8187

Este manual sirve para los siguientes modelos

Tabla de contenidos

Otros manuales de Instrumento de medición de Extech Instruments

Extech Instruments

Extech Instruments SL250W Manual de usuario

Extech Instruments

Extech Instruments RH401 Manual de usuario

Extech Instruments

Extech Instruments 407119 Manual de usuario

Extech Instruments

Extech Instruments 451181 Manual de usuario

Extech Instruments

Extech Instruments 407113 Manual de usuario

Extech Instruments

Extech Instruments MO50 Manual de usuario

Extech Instruments

Extech Instruments MA160 Manual de usuario

Extech Instruments

Extech Instruments HD755-NIST Manual de usuario

Extech Instruments

Extech Instruments PH220 Manual de usuario

Extech Instruments

Extech Instruments DT200 Manual de usuario

Extech Instruments

Extech Instruments AN510 Manual de usuario

Extech Instruments

Extech Instruments 45118 Manual de usuario

Extech Instruments

Extech Instruments MultiScope 381270 Manual de usuario

Extech Instruments

Extech Instruments RH390 Manual de usuario

Extech Instruments

Extech Instruments VB400 Manual de usuario

Extech Instruments

Extech Instruments RH305 Manual de usuario

Extech Instruments

Extech Instruments 461893 Manual de usuario

Extech Instruments

Extech Instruments EasyView EA30 Manual de usuario

Extech Instruments

Extech Instruments RH300 Manual de usuario

Extech Instruments

Extech Instruments AN10 Manual de usuario

Extech Instruments

Extech Instruments VB450 Manual de usuario

Extech Instruments

Extech Instruments 400790A Manual de usuario

Extech Instruments

Extech Instruments MA3110 Manual de usuario

Extech Instruments

Extech Instruments AN310-NIST Manual de usuario

Manuales populares de Instrumento de medición de otras marcas

Suaoki

Suaoki D40 Manual de usuario

Elster

Elster BK-G1.6 Manual de usuario

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manual

Duratool

Duratool D03128 Manual de usuario

Vega

Vega VEGAPULS 65 Manual de usuario

Tonghui

Tonghui TH2618B Manual de usuario

Tenmars

Tenmars TM-801 Manual de usuario

MSR

MSR 145 Manual de usuario

TPS

TPS WP-82 Manual de usuario

ELMETRON

ELMETRON CP-511 Manual de usuario

PCB Piezotronics

PCB Piezotronics 003C30 Manual de usuario

Tenma

Tenma 72-10465 Manual de usuario

Endress+Hauser

Endress+Hauser Proline Promag 50 Especificaciones técnicas

Siemens

Siemens SITRANS F Coriolis FCT030 Manual de lista de piezas

KLINGER

KLINGER CMF V Series Manual de usuario

EXFO

EXFO FTB-2 Manual de operación y mantenimiento

Keysight

Keysight M8290A Manual de usuario

ADTEK

ADTEK MW-5 Manual de usuario