Extech Instruments RPM10 Manual de usuario

User's Guide

Model RPM10

Laser Photo / Contact Tachometer

with IR Thermometer

Patented

RPM10-EU-EN-V2.2-3/11

Introduction

Congratulations on your purchase of Extech's Laser Photo/Contact Tachometer with Non-

Contact IR Thermometer, Model RPM10. This Tachometer provides contact RPM and

Linear Surface Speed measurements, non-contact RPM measurements and IR

temperature measurements. The laser pointer beam provides accurate long distance

measurements for photo tachometer measurements and also identifies the measurement

spot for the non-contact temperature tests. This meter, with proper care, will provide years

of safe reliable service.

CAUTIONS

•Improper use of this meter can cause damage, shock, injury or death. Read and

understand this user manual before operating the meter.

•If the equipment is used in a manner not specified by the manufacturer, the protection

provided by the equipment may be impaired.

•This device is not a toy and must not reach children’s hands. It contains hazardous

objects as well as small parts that the children could swallow. In case a child

swallows any of them, please contact a physician immediately

•Do not leave batteries and packing material lying around unattended; they can be

dangerous for children if they use them as toys

•In case the device is going to be unused for an extended period of time, remove the

batteries to prevent them from training

•Expired or damaged batteries can cause cauterization on contact with the skin. Always,

therefore, use suitable hand gloves in such cases

•See that the batteries are not short-circuited. Do not throw batteries into the fire.

•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

RPM10-EU-EN-V2.2-3/11

Meter Description

1. Photo Tachometer sensor, IR Thermometer

sensor and laser source

2. MEASURE button

3. IR Thermometer button

4. Memory button

5. Function Switch

6. Battery compartment (rear)

7. Contact Tachometer shaft

RPM10-EU-EN-V2.2-3/11

Reflective Tape

Laser beam

Meter Operation

Reversible LCD Display

The meter display indicates Photo Tachometer and IR thermometer measurements in one

direction and Contact measurements in the opposite direction. This permits the user to

easily read the measurement digits in both measurement modes with the meter held in

either direction.

Temperature Units Selection

The displayed temperature units are selected via a slide

switch located in the battery compartment. To select the

units (ºC/ºF), open the battery compartment and remove the

batteries, then set the switch for the desired units.

NON-CONTACT PHOTO TACHOMETER MEASUREMENTS

1. Apply an appropriately sized square piece of reflective tape to the surface of the object

under test.

2. Move the Function switch to the PHOTO position.

3. Point the laser pointer end of the meter toward the device under test at a distance of 50

to 2000mm (2" to 79").

4. Press the Measure button (located on the right side of the meter) and align the laser

pointer beam with the reflective tape.

5. Verify that the ((●)) Monitor Indicator appears on the LCD when the object under test

passes through the light beam.

6. Release the Measure button when the RPM reading stabilizes on the LCD.

7. If the rpm is under 50,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.

NOTE: Bright ambient light may interfere with the reflected light beam. Shading the target

area may be necessary in some cases.

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

Cal switch,

Do not move

Units switch

RPM10-EU-EN-V2.2-3/11

CONTACT TACHOMETER RPM MEASUREMENTS

1. Install one of the RPM contact tips on the contact shaft.

2. Move the Function switch to the CONTACT position.

3. Press the Measure button while lightly pressing the contact tip

against the center of a rotating shaft.

4. Release the Measure button when the display stabilizes

(approx. 2 seconds).

CONTACT LINEAR SURFACE SPEED (m/min ft/min) MEASUREMENTS

1. Install the Linear speed wheel on the contact shaft.

2. Slide the Function Switch to SURFACE SPEED “ft/min" or

"m/min" position.

3. Press the Measure button and hold the surface speed wheel

against the moving surface being measured.

4. Release the Measure button when the display stabilizes

(approx. 2 seconds).

RPM Contact

Tips

Linear Speed

Wheel

RPM10-EU-EN-V2.2-3/11

NON-CONTACT TEMPERATURE MEASUREMENTS

1. Point the meter at the surface to be measured.

2. Press the red IR thermometer button.

3. Use the laser pointer to identify the exact spot to be measured.

4. The area of the surface to be measured must be larger than the spot size as

determined by the distance to spot size specification.

5. Read the temperature in the display.

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.

MIN/MAX and Last Reading Memory Recall

The meter will record Maximum, Minimum, and Last Reading for the period of time the

Measure button is held. These stored values can then be recalled directly on the meter's

display. The readings will remain in the display for approximately four seconds after a

button press.

1. Press the Memory key once: The “Last” icon appears with the stored last reading.

2. Press the Memory key again. The “MAX” icon appears with stored maximum reading

3. Press the Memory key again. The “MIN” icon appears with stored minimum reading

2cm 3cm 6cm

18cm

12cm

36cm

RPM10-EU-EN-V2.2-3/11

Specifications

Time base Quartz crystal 4.9152 MHz

Display Reversible 5 digit 16mm (0.6") LCD display

Laser light source Less than 1mW; Class 2 red laser diode (645nm approx.)

Detecting Distance 50 to 2000 mm (2 to 79") depending on ambient light and RPM

Memory Last reading and MIN/MAX readings

Operating Conditions 0 °C to 50 °C (32 °F to 122°F); RH 80% Max

Power Supply 4 x 1.5V AA batteries

Power Consumption 24mA DC approx. (>100hrs continuous use)

Weight 300g (10.6oz). (including battery)

Size 210 x 80 x 50 mm (8.3 x 3.1 x 2.0")

Accessories (4) 1.5V batteries, reflective tape 24" [600mm], (1) surface speed

and (2) rpm rotating attachments, and carrying case

Patent Notice U.S. Patent 7,111,981

Range Specifications

Range Resolution Accuracy (%rdg)

Photo

Tachometer 10 to 99,999 rpm 0.1 rpm (<1000rpm)

1 rpm (>1000 rpm)

Contact

Tachometer 0.5 to 19,999 rpm 0.1 rpm (<1000rpm)

1 rpm (>1000 rpm)

± (0.05% + 1d)

Surface

Speed 0.2 to 6560 ft/min 0.1 ft/min (<1000ft/min)

1 ft/min (>1000ft/min)

Surface

Speed 0.05 to 1999.9 m/min 0.01 m/min (<100m/min)

0.1 m/min (>100 m/min)

± (1% + 1d)

Photo

Tachometer

Detecting

Distance

50 to 2,000mm (2 to 79”) typical*

* specified using a 10mm square of reflecting tape at 1,800rpm. The max

and min detecting distance will change with environmental conditions,

reflecting tape, or speeds above 1800rpm.

IR Thermometer Specifications

Range / Resolution -20 to 315oC (-4 to 600oF) 1oC/F

Accuracy ± 3% of reading or ± 3oC (6oF) whichever is greater.

Note: Accuracy is specified for the following ambient

temperature range: 18 to 28°C (64 to 82°F)

Emissivity 0.95 fixed value

Field of View D/S = Approx. 6:1 ratio (D = distance, S = spot)

Laser power Less than 1mW

Spectral response 6 to 14 μm (wavelength)

Battery Replacement

RPM10-EU-EN-V2.2-3/11

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 four 1.5V AA batteries, and replace cover.

You, as the end user, are legally bound (EU Battery ordinance) to return all

used batteries, disposal in the household garbage is prohibited! You can

hand over your used batteries / accumulators at collection points in your

community or wherever batteries / accumulators are sold!

Disposal: Follow the valid legal stipulations in respect of the disposal of the

device at the end of its lifecycle

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