Lutron DT-2239A – Digital Stroboscope

SPECIFICATIONS

Display

0.3″ LED, 4 digits.

Power Supply

110 Vac 10%, 50/60 Hz.

Stroboscopic Flash Rate

100 to 10,000 flashes per minute (FPM).

or 220 Vac 10%, 50/60 Hz.

or 230 Vac 10%, 50/60 Hz.

Accuracy

100 to 5,000 FPM/RPM) – ± 1 digit.

Power Consumption

Less than 30 Watt.

over 5000 FPM/RPM – ± 0.05% .

Operating Temp.

0 to 50 °C (32 to 122 °F).

Operating Humidity

Less than 80% R.H.

Resolution

Less than 10,000 FPM/RPM- 1 FPM/RPM.

Dimension

HWD – 21 x 12 x 12 cm (8.3×4.8×4.8 inch).

Over 10,000 FPM/RPM – 10FPM/RPM

Weight

1Kg/2.2 LB.

Sampling Time

1 second.

Housing

Compact and impact plastic injection case with plastic mirror type reflector.

Range Select

Automation.

Circuit

This stroboscope/tachometer employs an custom one-chip of microcomputer LSI circuit
& crystal control time base which results in extraordinary accuracy over a wide, dynamic range.

Calibration

Crystal time base and microprocessor circuit, don’t necessary take any external calibration process.

Accessories Included

Operation manual……… 1 PC.

FLASH TUBE SPECIFICATIONS

Flash tube

Xenon lamp.

Flash tube replacement

It is required to change the flash tube when the instrument start to flash irregularly at speeds of 3600 RPM/FPM or more.

Flash Duration

Approximately 60 to 1,000 microseconds.

Flash color

Xenon white 6,500 K degree.

Flash energy

4 Watts-seconds (joules).

Beam Angle

80

Operating duty Cycle

For prolong life and safe operation, please adhere to the following duty cycle: Below 1,000 RPM – 30 Minutes. Above 3,600 RPM – 5 Minutes.
Always allow a 10 minute cooling off period between cycles.

OPERATIONS PROCEDURES

Preparation

(a) Plug unit into a properly grounded 110V AC, 220V AC or 230V AC outlet. (b) Turn the power switch to “on” position.
(c) Determine the range switch to “Low” or “High” position.

Checking Speed

When checking speed, care must be taken to insure that the strobe is flashing in unison (one to one) with the object being monitored. A Stroboscope will also stop motion at 2:1, 3:1, 4:1 et., this is normally referred to as harmonies. To be sure of unison, turn the dial until two images appear – this will double the actual speed. Then lower the flashing rate until a single and stationary image appears – this is the actual true speed.

Checking Motion

For motion analysis, simply locate the actual speed as mentioned above and then turn the dial slowly up or down. This will give a slow motion effect allowing complete inspection.