Checkline DT-107A User Manual

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01 .0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02

02.0 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 03

03.0 Contents of Complete Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04

04.0 Installing/Replacing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05

05.0 Measuring RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06

06 .0 Measuring Surface Speed & Length . . . . . . . . . . . . . . . . . . . . . . . . 07

07.0 Built-in Memory System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08

08.0 Range & Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09

09 .0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

10.0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

TABLE OF CONTENTS

OI-1009.105A

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10.0 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 NOTLIMITED 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.

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1.0 INTRODUCTION

The DT-105A, DT-107A DT-105A-12 and DT-1807A-12 Hand-Held Digital
Tachometers are designed to accurately measure rotation speeds, surface speeds
and length. The 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 measuring RPM, the user will mount the Cone Tip Adapter or Funnel Ti p
Adapter to the end of the shaft and place in contact with the rotating shaft or
element. When measuring surface speed or length, the 6 inch circumference
(1.9" diameter) is fitted to the end of the shaft and placed in contact with the
moving surface.

Applications

Surface Speed & Length

RPM Measurement

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9.0 SPECIFICATIONS

Display Range 0.10 to 25,000 rpm with floating decimal

Accuracy 0.10 to 999.99 rpm: ±0.06 rpm

1,000.0 to 9,999.9 rpm: ±0.6 rpm
10,000 to 25,000 rpm: ±0.006% rpm

Measurement Units

per Minute Revolutions, Meters, Yards, Feet, Inches
per Hour Feet, Yards, Miles, Meters, Revolutions
Total Revolutions, Centimeters, Meters, Yards,

Feet, Inches

per Second Revolutions, Inches, Feet, Yards,

Centimeters (optional, inquire)

Memory System 13 readings are stored in memory and

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

Over-Range Indicator Flashing numerals

Detection Optical coupler, 60 pulses/rev

Update Time 1 second (typical)

Batteries Size: 2 1.5 VAA

Life: Approx. 65 hrs. (DT-105A)
Life: Approx. 40 hrs. (DT-107A)

Low Voltage Indicator Flashing “LO BAT” display (DT-105A)

“B” display (DT-107A)

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

Weight 0.9 pounds (400 grams)

Dimensions 7.3" L x 2.4" Wx 1.8" H

(185.4 x 60.0 x 45.7mm)

Warranty 1 year

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2.0 OVERVIEW

Memory
Switch

Shaft with Cone Tip
Adapter mounted

Measure Button

Operating Mode
Selector Switch

Battery

Compartment

LCD Display on DT-105A

LED Display on DT-107A

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All Models

I: Inches Single Range Accuracy Resolution

I/M (inches/min.) 0000.6 – 9,999.9 ±0.6 0.1

10,000 – 99,999 ±0.006% of reading ±1 digit 1

(or ±6 IPM max.)

IN (length) 0000.1 – 9,999.9 0.1

10,000 – 99,999 1

m: Meters Single Range Accuracy Resolution

m/M (meters/min.) 000.02 – 999.99 ±0.06 0.01

1,000.0 – 3,810.0 ±0.3 0.1

m/H (meters./hour) 0000.9 – 9,999.9 ±0.6 0.1

10,000 – 99,999 ±0.006% of reading ±1 digit 1

(or ±6 mPH max.)

m (length) 00.005 – 99.995 0.005

100.00 – 999.99 0.01

1,000.0 – 9,999.9 0.1

10,000 – 99,999 1

cm (length) 0000.5 – 9,999.5 0.5

10,000 – 99,999 1

M: Miles Single Range Accuracy Resolution

M/H (miles/hour) 0.0006 – 9.9999 ±0.0006 0.0001

10.000 – 99.999 ±0.006 0.001

100.00 – 142.05 ±0.01 0.01