Check-line CDT-2000 Manual de usuario

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02

1.1 Applications

2.0 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . 03

3.0 CONTENTS OF COMPLETE OUTFIT . . . . . . . . . . 04

4.0 OVERVIEW OF CDT-2000 . . . . . . . . . . . . . . . . . . . . . 05

4.1 LCD Display

4.2 Front Panel Keys

5.0 INSTALLING BATTERIES . . . . . . . . . . . . . . . . . . . . 07

6.0 MEASURING RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . 08

6.1 Contact Operation

6.2 Non-Contact Operation . . . . . . . . . . . . . . . . . . . . . .

7.0 MEASURING SURFACE SPEED OR LENGTH . . . . 10

8.0 MEMORY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . 11

9.0 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table of Contents

OI611

9.0 SPECIFICATIONS

Measuring Ranges

RPM 1.00 – 99,999 rpm (non-contact)

1.00 – 19,999 rpm (contact)

Surface Speed 0.30 – 6,500 feet/min

0.10 – 1,999 meters/min

4.0 – 78,000 inches/min

Length 0.01 – 99,999 feet

0.02 – 99,999 meters

1.0 – 99,999 inches

Resolution .01 from 0 –100

.1 from 100 – 1,000

1 from 1000 – 99,999

Accuracy ± 0.02% of reading or 1 digit

Display 5-Digit LCD, 10mm high

Decimal Point Automatic

Memory System Maximum, minimum, and last reading (retained in memory for the

life of batteries)

Measurement System

Non-Contact Visible LED light beam

Contact Contact adapter

Engineering units

RPM RPM

Surface Speed Feet/min, inches/min and meters/min

Length Feet, inches, meters

Sensing Distance Up to 14 inches (350mm)

Display Update Time 0.5 seconds or one measuring period

Auto Power Off After 30 seconds of non-use (minimum, maximum and last reading

retained in memory)

Battery Life 20 hours continuous use

Weight 6 ounces (170 grams)

Housing Material ABS Plastic

Operating Temperature 32 to 122° F (0 to 50° C)

Storage Temperature – 4 to 150° F (–20 to 70° C)

Accessories Included Contact adapter, cone tip, universal surface speed wheel with

integrated funnel tip adapter, reflective tape, operating

instructions and foam-fitted, hard-plastic carrying case

Optional Accessories Shaft extension, 3.15 inches (80 mm)

Warranty 2 years

1.0 INTRODUCTION

The CDT-2000 Digital Tachometer combines the best features of contact

and non-contact tachometers for measuring rotational speed, surface speed

and length.

When used in the non-contact operating mode, a small piece of reflective

tape is applied to the rotating element (wheel, shaft, etc.). The CDT-2000

uses a visible LED light source to accurately measure the RPM from up to

14” (350 mm) away from the “target”. In the contact operating mode, the

speed is sensed using one of the contact adapters supplied with the instru-

ment.

In applications where surface speed or linear speeds are to be measured,

the universal wheel is used for direct readout of feet/min, meters/min or

inches/min, as selected by the user. The CDT-2000 can also be used to

measure the accumulated total of continuously running material such as

paper, wire/yarn being wound on a spool, or for checking the calibration

of on-line counters and totalizer devices.

1.1 Applications

Contact RPM — Used to measure the speed of rotating

motors, shafts, pulleys, gears, etc.

Non-Contact RPM — Used when contact measurement

is not possible due to access space restrictions, safety

concerns, etc.

Linear Speed and Length — Used to measure the

linear speed or length of moving surfaces, such as

conveyor belts, printed materials, webs of fabric

or paper, etc.

8.0 MEMORY SYSTEM

The CDT-2000 is supplied with a built-in memory

system which stores the last measurement,

the maximum measurement and the minimum

measurement which occurred during a measuring

period. A measuring period is the interval of time

while the Measure key is depressed. The stored

values are retained in memory even when the

power turns off (auto power off). To recall the

stored values after auto power off:

1. Press the Measure key to turn the power on

2. Press the MEM key to recall the desired value

The Memory key accesses the CDT-2000’s built-in memory.

Each time the MEM key is pressed the values stored in

memory will be recalled to the display in the sequence listed below. The

appropriate memory indicator will be shown together with the recalled

value on the display.

Note: When the batteries are removed, the values stored in memory will

be lost.

8.8.8.8.8

max min mem

rpm

m/min

ft/min

in/min

mem

max

mem

min

mem

max

mem min

mem

MEM

MAX

MIN

LAST

MEM

min

rpm

max

mem

2.0 SAFETY PRECAUTIONS

ALL OPERATORS SHOULD WEAR SAFETY GOGGLES WHEN

USING THIS OR ANY OTHER TACHOMETER. FAILURE TO DO SO

COULD RESULT IN SERIOUS INJURY!

1. Check condition of housing, slide-on Contact Adapter and split

mounting hubs of push-in Contact Cone, Surface Speed Wheel and

any other accessories. Replace those that are worn, loose-fitting or

cracked. The Contact Adapter shaft should rotate freely.

2. When operating in the contact mode, be sure Contact Adapter fits

snugly into the housing grooves.

3. When using the Surface Speed Wheel accessory, make sure it fits the

tachometer shaft snugly. In operation, keep the wheel perpendicular

and parallel to the moving surface to prevent it from running off the

tachometer shaft.

4. Do not use the standard surface speed wheel for speeds in excess of

1000 feet per minute. For higher speeds, specify the optional Heavy-

Duty Surface Speed Wheel with set-screw mounting.

5. Store the instrument in its carrying case when it is not in use.

7.0 MEASURING SURFACE SPEED OR LENGTH

1. Install the Slide-on Contact Adapter.

2. Slide the Surface Speed Wheel over the

shaft of the instrument. Be sure to align

the pin on the side of the shaft with the slot

in the adapter. Push on securely.

4. Select the desired units of measure for

surface speed or length by pressing the

MODE key until the appropriate symbol

is shown on the LCD Display.

Surface Speed Length

feet/min feet

meters/min meters

inches/min inches

5. Position the wheel carefully so that it is

perpendicular to the moving surface. Apply

enough pressure to eliminate any slip.

6. Press and hold the Measure key to take measurements.

7. Release the Measure key prior to removing the instrument from the

moving surface. The Last reading will be retained on the display.

MODE

MEM

max min mem

rpm

m/min

ft/min

in/min

8.8.8.8.8

SLOT

8.8.8.8,8

max min mem

rpm

m/min

ft/min

in/min

m/min

ft/min

in/min

3.0 CONTENTS OF COMPLETE OUTFIT

The CDT-2000 is supplied with the following accessories in a foam-fitted,

carrying case:

1. Slide-on Contact Adapter

2. Cone Tip Measuring Adapter

3. Surface Speed Wheel with integrated Funnel Tip

4. Reflective Tape

5. Two (2) AA Batteries

6.2 Non-Contact Operation - RPM

1. Remove the Contact Adapter.

2. Attach a piece of reflective tape to the

rotating element (shaft, pulley, etc.).

3. Aim the CDT-2000 at the target using the red

visible light beam for alignment assistance.

4. Press and hold the Measure key to begin taking measurements. The

“On-Target” indicator will be displayed on the LCD if the instrument

is properly aimed at the target (reflective tape).

5. Release the Measure key prior to removing the instrument from the

target. The last reading will be retained on the LCD display.

Hints for Non-Contact Measurements

1. The non-reflective area should be larger than the reflective area.

2. If the rotating element is highly reflective, cover it with black tape or

paint to improve the contrast between the reflective tape and the

surface of the rotating element.

MODE

MEM

max min mem

rpm

m/min

ft/min

in/min

8.8.8.8.8

Reflective Tape

4.0 Overview of CDT-2000

4.1 LCD Display

Low Battery Indicator

Units of Measure Indicators

Each time the MODE key is pressed the units will change.

On-Target Indicator

Memory Indicators

8.8.8.8.8

max min mem

rpm

m/min

ft/min

in/min

MEM

MODE

➊

➍

MEM

➌

MODE

rpm rpm

m/min m

ft/min ft

in/min in

➋

max min mem

6.0 MEASURING RPM

6.1 Contact Operation - RPM

1. Install the Slide-on Contact Adapter.

2. Select either the Cone Tip Adapter or the Funnel Tip Adapter for

contact with the rotating shaft.

Note: The Funnel Tip is part of the Surface Speed Wheel.

3. Slide the selected adapter over the shaft

of the instrument. Be sure to align the

pin on the side of the shaft with the slot

in the adapter. Push on securely.

4. Select the Contact RPM mode by pressing the

key until the following symbol is shown on the LCD Display.

5. Position the adapter carefully so that it contacts the center of the

rotating shaft. Apply enough pressure to eliminate any slip.

6. Press and hold the Measure key to take measurements.

7. Release the Measure key prior to removing the instrument from the

rotating element. The Last reading will be retained on the display.

MODE

MEM

max min mem

rpm

m/min

ft/min

in/min

8.8.8.8.8

SLOT

RPM

MODE

4.2 Front Panel Keys

The Memory key accesses the memory. Each time the

key is pressed the values stored in memory will be

recalled to the display in the following sequence:

Changes the units of measure. Each time the key is

pressed, the units will change in the following

sequence:

The Measure key performs the following functions:

1. Turns on the power

2. Starts & stops the measuring period

3. Exits from the memory mode

MEM

MODE

MEM MODE

Measure Key

LAST MAX MIN

8.8.8.8.8

max min mem

rpm

m/min

ft/min

in/min

m/min

ft/min

in/min

MODE

RPM (Non-Contact)

RPM (Contact)

METERS/MIN

FEET/MIN

INCHES /MIN

INCHES

FEET

METERS

5.0 INSTALLING BATTERIES

1. Open the battery compartment by

pulling down on the tab located at

the top of the battery cover.

2. Remove the battery cover.

3. Insert two (2) AA batteries making

sure that the polarity of the two

batteries matches the illustration

engraved on the inside of the battery

compartment.

4. Replace the battery cover by

inserting the two tabs located on

the bottom edge of the cover into

the matching slots in the housing.

5. Push the cover closed until the tab

at the top of the battery cover “clicks”

into a locked position.

click

CHECK

•

LINE ®

BY ELECTROMATIC

CDT-2000

Digital Tachometer

Operating Instructions

ELECTROMATIC

E Q U I P M E N T C O., I N C.

600 Oakland Ave., Cedarhurst, NY 11516–U.S.A.

TEL: 516-295-4300 • FAX: 516-295-4399

CHECK

•LINE ®

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