Instruction Manual

ManualsBrandsCheckline ManualsOptical devicesDT-900

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

NOTES

WARNING

Direct view of the lamp may trigger an epileptic seizure.

Eye damage may result from improper use of the lamp.

Summary of content (9 pages)

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NOTES CONTENTS ..................................................... Page 01.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Complete kit 02 02.0 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Mounting stroboscope 2.2 Display Messages 03 03.0 Measuring RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.
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1.0 INTRODUCTION 10.0 WARRANTY 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.
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9.0 APPENDIX - DIMENSIONS 2.0 OVERVIEW DT-900 dimensions with battery pack. Dimensions are in inches. AC Adapter Charger Connection Power Button Flash rate divided by 2 Adjustment Dial Mode Control Flash Rate multiplied by 2 Power Indicator Rechargeable Battery Pack Easy tab for Battery Pack removal External Triggering Connector Battery pack. Dimensions are in inches Phase control 2.
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8.0 SPECIFICATIONS 2.2 Display Messages Low Battery Indicator will appear when the battery needs recharging. Although the stroboscope will continue to flash, it is recommended that you charge the battery when this message appears. External Mode. When switched to External Mode Triggering (see page 6), the DT-900 automatically looks for an external signal source. If a signal is detected, the LED power indicator turns green. If no signal is detected, the LED will turn red, and the message no input appears.
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7.0 TROUBLESHOOTING 3.0 MEASURING RPM FPM reading is displayed but unit is not flashing: Flash tube may need to be replaced (See flash tube replacement section) Stroboscope is in external trigger mode, with no flash: • • • • Check flash tube. Check sensor. Check wire continuity. Check phono connector wiring for a possible loose connection. Stroboscope is in internal trigger mode, no flash: • Check flash tube. • Check battery and recharge if needed.
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.0 CHARGING 3.2 Internal Triggering Mode To use the DT-900 stroboscope in the Internal Triggering Mode: 1. Turn power switch on. The power indicator LED will light up. 2. Press the Mode Control button. Unless a sensor is connected to the external signal connector, the display will read EXT.Mode No Signal. Press Mode again, the display will read TachMode. Press Mode again to enter the Internal Triggering Mode (no mode indicator is shown on the display). 3. Aim the light beam at object under observation.
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4. Ensure the bulb is centered in the reflector. 5. Re-install the protective lens. Line up the four tabs of the lens with the four slots of the strobe. Insert one tab in place, then press the lens back into the strobe so that the remaining tabs snap into place. 3.4 Adjusting The Flash Rate After turning on the strobe, you can adjust the flash rate in two ways 1. Turn the central Adjustment Dial to reach the desired rate. Turning the dial counter clockwise to decreases the flash rate.
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5.0 FLASH TUBE 4.0 TACHOMETER MODE When in the Tachometer Mode the strobe will not flash but can be used like a handheld tachometer. The DT-900 will display the frequency of the signal source connected to it. To use the Tachometer Mode: 1. Turn on the strobe and press the Mode Control button until TachMode appears on the display. 2. Connect a signal source to the external signal connector (See page 3) using a stereo type phono connector (see page 5). 3.
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CHECK•LINE BY ELECTROMATIC HAND-HELD STROBOSCOPE DT-900 CHECK•LINE ® ELECTROMATIC E INSTRUMENTS Q U I P M E N T C O ., I N C . 600 Oakland Ave., Cedarhurst, NY 11516–U.S.A.