Checkline DT-900 User Manual

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CONTENTS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page

01.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02

1.1 Complete kit

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

2.1 Mounting stroboscope

2.2 Display Messages

03.0 Measuring RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05

3.1 Measuring true revolutions per minute (RPM)

3.2 Internal triggering mode

3.3 External triggering mode

3.4 Adjusting flash rate

3.5 Phase shift function

04.0 Tachometer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08

05.0 Flash tube replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09

06.0 Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

07.0 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

08.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

09.0 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

10.0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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NOTES

Direct view of the lamp may trigger an epileptic seizure.
Eye damage may result from improper use of the lamp.

WARNING

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1.0 INTRODUCTION

Stroboscopes are used in various applications, such as quality machine inspection and
timing. At high speed or high frequency operation the human eye cannot discern a
single image of a moving object.

Stroboscopes freeze these images by matching the speed of the moving object with
short duration flashes. An indicator or reference point, such as a small tape or paint
mark can be visually rotated in any direction depending on the phase angle and flash
rate it is subjected to.

The Electromatic DT-900 stroboscope has many of the same capabilities as our
DT-300 and DT-700 series stroboscopes, but is smaller.

1.1 Complete Kit

The DT-900 is supplied as a complete kit including:

• DT-900 gauge

• Charger

• Spare lamp

• Operating instructions

Additional parts such as sensors, holster and spare battery pack are sold
separately (see accessories on page 13). An optional carrying case is also
available.

Please check with your dealer for more information.

Battery Pack

Carrying Case (optional)

Strobe

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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 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.

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2.0 OVERVIEW

Phase control

Power Indicator

Mode Control

Adjustment Dial

Flash rate

divided by 2

Rechargeable

Battery Pack

Easy tab for

Battery Pack

removal

External Triggering

Connector

Power Button

Flash Rate

multiplied by 2

AC Adapter Charger

Connection

2.1 Mounting Stroboscope

To mount the strobe on a tripod (or any other mounting surface), use a 1/4-20unc
screw, 8mm long or shorter. Insert the screw into the mounting screw hole (see
photo below) and tighten.

Battery Pack

Mounting Screw Hole 1/4 x 20 unc

Stroboscope

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9.0 APPENDIX - DIMENSIONS

DT-900 dimensions with battery pack. Dimensions are in inches.

Battery pack. Dimensions are in inches