Checkline DT-207LR User Manual

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1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02

2.0 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

03

3.0 Contents of Complete Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04

4.0 Installing/Replacing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05

5.0 Measuring RPM – Non-Contact Mode . . . . . . . . . . . . . . . . . . . . . . . 06

6.0 Measuring RPM – Contact Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 07

7.0 Measuring Surface Speed & Length . . . . . . . . . . . . . . . . . . . . . . . . . 08

8.0 Built-in Memory System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09

9.0 Range & Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0

10.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

11. 0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

TABLE OF CONTENTS

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11.0 WARRANTY

ELECTROMATIC Equipment Co., Inc. (ELECTROMATIC) warrants to the
original purchaser that this product is of merchantable quality and confirms
in kind and quality with the descriptions and specifications thereof. Product
failure or malfunction arising out of any defect in workmanship or material
in the product existing at the time of delivery thereof which manifests
itself within one year from the sale of such product, shall be remedied by
repair or replacement of such product, at ELECTROMATIC’s option, except
where unauthorized repair, disassembly, tampering, abuse or misapplica­tion has taken place, as determined by ELECTROMATIC. All returns for
warranty or non-warranty repairs and/or replacement must be authorized by
ELECTROMATIC, in advance, with all repacking and shipping expenses to
the address below to be borne by the purchaser.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT
LIMITED TO, THE WARRANTY OF MERCHANTABILITY AND
FITNESS FOR ANY PARTICULAR PURPOSE OR APPLICATION.
ELECTROMATIC SHALL NOT BE RESPONSIBLE NOR LIABLE FOR ANY
CONSEQUENTIAL DAMAGE, OF ANY KIND OR NATURE, RESULTING
FROM THE USE OF SUPPLIED EQUIPMENT, WHETHER SUCH DAMAGE
OCCURS OR IS DISCOVERED BEFORE, UPON OR AFTER REPLACEMENT
OR REPAIR, AND WHETHER OR NOT SUCH DAMAGE IS CAUSED BY
MANUFACTURER’S OR SUPPLIER’S NEGLIGENCE WITHIN ONE YEAR
FROM INVOICE DATE.

Some State jurisdictions or States do not allow the exclusion or limitation
of incidental or consequential damages, so the above limitation may not
apply to you. The duration of any implied warranty, including, without
limitation, fitness for any particular purpose and merchantability with
respect to this product, is limited to the duration of the foregoing warranty.
Some states do not allow limitations on how long an implied warranty
lasts but, not withstanding, this warranty, in the absence of such
limitations, shall extend for one year from the date of invoice.

ELECTROMATIC Equipment Co., Inc.
600 Oakland Ave. Cedarhurst, NY 11516—USA
Tel: [phone]/ Tel: [phone]/ Fax: [phone]

Every precaution has been taken in the preparation of this manual. Electromatic Equipment Co., Inc.,
assumes no responsibility for errors or omissions. Neither is any liability assumed for damages
resulting from the use of information contained herein. Any brand or product names mentioned here­in are used for identification purposes only, and are trademarks or registered trademarks of their
respective holders.

OI109DT2

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1.0 INTRODUCTION

The DT-205LR, DT-207LR, DT-205LR-12 abd DT-207LR-12 Hand-Held
Digital Tachometers are combination models designed for Contact as well as
Non-Contact operation. They employ a precise Optical Laser System that
permits measurement of RPM from up to 14 feet away when operating in the
Non-Contact mode and is supplied with a Screw-In Contact Adapter (p/n:
DT-ADP-200LR) for measuring RPM, Surface Speed & Length in the Contact
operating mode. Rotational speed is displayed in RPM units (revolutions
per minute) while the surface speed and length can be displayed in a variety
of user-selected engineering units.

When operating in the Non-Contact mode a small piece of reflective tape
must be affixed to the rotating shaft or other rotating element. Refer to
Operating Procedure

Non-Contact RPM

Contact RPM

Surface Speed & Length

CAUTION

!

Do not point the laser beam into eyes as permanent
damager could result.

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10.0 SPECIFICATIONS

Models DT-205LR (LCD version)

DT-207LR (LED version)
DT-205LR-12 (LCD version)
DT-207LR-12 (LED version)

Measuring Range Non-Contact: 6 to 99,999 rpm

Contact : 0.8 to 25,000 rpm

Accuracy 6 to 8,299 rpm: ±1 rpm

8,300 to 24,999 rpm: ±2 rpm
25,000 to 99,999 rpm: ±0.006% rpm

Display DT-205LR (LCD MODEL)

5 digit 0.47" (12mm) high LCD
DT-207LR (LED MODEL)
5 digit 0.4" (10mm) high LED

Measuring Units

per Minute Revolutions, Meters, Yards, Feet, Inches
Total Length Meters, Yards, Feet, Inches

Measuring Distance 14 feet (5.2 m) maximum

Detection Laser Diode, Class II

Memory 13 readings are stored in memory and

retained for 5 minutes (last, max., min.,
and 10 measurements)

Over-Range Indicator Flashing numerals

Update Time 1 second (typical)

Batteries 2 (1.5 VAA )

Battery Life DT-205LR: Approx 40 hrs

DT-207LR: Approx 25 hrs
DT-205LR-12: Approx 40 hrs
DT-207LR-12: Approx 25 hrs

Operating Temp 32° to 113° F (0 to 45° C)

Construction Die-cast aluminum housing

Weight 0.8 pounds (365 grams)

Dimensions 6.6" L x 2.4" W x 1.8" H

(167mm x 61mm x 45.7mm)

Warranty 1 year

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2.0 OVERVIEW

Memory
Switch

Screw-In Contact
Adaptor
(p/n: DT-ADP-200LR)

Measure Button

Operating Mode
Selector Switch

Battery
Compartment

LCD Display on DT-205LR

LED Display on
DT-207LR

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9.0 RANGE AND ACCURACY

Model All Models

R: Revolutions Single Range Accuracy Resolution

Non-Contact RPM 6 – 8.300 ±1
(rev./min0 8,300 – 25,000 ±2 1

25,000 – 99,999 ±0.006% of reading ±1 digit

(or ±6 RPM max.)

Contact RMP (rev./min.) 0.8 – 9,999.9 ±0.6% 0.1

10,000 – 25,000 ±0.006% of reading ±1 digit 1

(or ±2 RPM max.)

F: Feet Single Range Accuracy Resolution

F/M (feet/min.) 0.4 – 9,999.9 ±0.6% 0.1

10,000 – 12,500 ±1 1

FT (feet) 000.10 – 999.99 0.01

01,000 – 9,999.9 0.1

10,000 – 99,999 1

Y:Yards Single Range Accuracy Resolution

Y/M (yards/min) 0.13 – 999.99 ±0.06 0.01

1,000.0 – 4,167.0 ±0.3 0.1

Y/Rd (length) 000.02 – 999.99 0.01

1,000.0 – 9,999.9 0.1
10,000 – 99,999 1

I:Inches Single Range Accuracy Resolution

I/M (inches/min.) 5 – 99,999 ±0.006% of reading ±1 digit 1

(or ±6 RPM max.)

IN (length) 01.0 – 9,999.9 0.1

10,000 – 99,999 1

m: Meters Single Range Accuracy Resolution

m/M (meters/min.) 0.11 – 999.99 ±0.06 0.01

1.000.0 – 3.810.0 ±3 0.1

m (length) 0.02 – 999.99 0.01

1,000.0 – 9,999.9 0.1
10,000 – 99,999 1

Note: When using the 6" master wheel, accuracy can be affected as much as

0.3% of reading

Although the tachomerter alone is able to achieve the above ranges,
the master wheel has a maximum speed limitation of 5,000 FPM
(for safety reasons)

CAUTION

!