DT-3015N Portable Xenon Stroboscope Instruction Manual

CAUTION : This indicates the possibility of minor injury or property damage if a user operates the unit improperly. However, depending on the circumstances, there is still the possibility that severe injury may result. Be sure to observe.

We categorize the type of those precautions using the following symbols throughout the manual.

A prohibited action you must not do.

A forced action you must always do.

1. Overview of this product

A stroboscope tachometer is a measurement instrument to measure the speed (cycle) of rotating objects that rotate at a constant speed, or moving objects that repeatedly operate at a constant cycle. When the rotation (motion) cycle matches with the flash cycle while the strobe flash is periodically applied on a rotating or moving object, the rotating (moving) object image appears to stand still. This stroboscope tachometer is the non-contact type, and can be used to read the object frequency when such a still image appears. Also, a stroboscope can be used to make images of rotating or moving objects stand still or that slightly move in order to observe their appearance in slow -motion.

Main features

Wide flash range – 30 to 35000 FPM(flashes per minute)
Emission in synchronization with the external trigger pulse

Phase Shift function.(PHA mode)
Rechargeable

2. Before use

2.1 Checking the supplied items

Check that the five items below are supplied.

2.2 Charging

Be sure to charge the battery before initial use.
Before charging, be sure to check that the power is turned OFF.
Please check the state of the power switch OFF with the picture in “3.1 Main unit” on page 6.

2.2.1 Charging method

Turn the power OFF, and connect the AC adapter’s connector to the main unit.
Next insert the AC adapter’s AC plug into an outlet. The battery lamp lights up, and charging starts. Charging is complete in approximately 2 hours, and then the charging lamp goes off.

The battery lamp( B-CHG )	State
Off	AC adapter not connected, or Charging complete
Flash	Charging error (Stop charging)
Continuous light	Charging

*Be sure to use the supplied AC adapter.
*Use at the ambient temperature 15°C or higher.
(If the ambient temperature is lower than 15°C, Charging may not be possible.)
*If the battery overheats, a charging error may occur.
In this case, let the internal temperature decrease and then reconnect the AC adapter.

Note 1) When the power is turned ON during charging, charging is canceled and emission starts. When the unit uses the AC adapter as its power source, it is not charged. (Note that emission and charging cannot be performed simultaneously.)

Note 2) Though the unit can be charged while battery power still remains, charging will still end when fully charged.

It is recommended, however, that the unit be charged when the battery has run out (“LLLLLL” is indicated on the display) to avoid reducing the battery life itself.

Note 3) If the unit is charged immediately after a long emission time at a high ambient temperature,the temperature detection circuit will turn on, and the charging lamp may not light up. In that case, disconnect the AC adapter, and let the unit cool. When the product temperature has decreased, connect the AC adapter again and start charging.

Note 4) Using in a high temperature environment may shorten the battery life.

2.2.2 Indication of low battery voltage ( LOWBAT )
If the remaining battery decreases below the specified amount, the battery voltage is lowered and the number display is changed to indicate the current setting value and “LLLLLL” alternately. Emission can be performed even when the battery voltage is low.

If the remaining battery decreases further, the number display indicates only “LLLLLL”, which provides the emission stop status. Press the power switch, and shut off the power immediately. In either case, charge the unit according to the procedure in “2.2.1 Charging method” .

3. Part names and functions

3.1 Main unit

3.2 Operation Panel

3.3 Display

3.3.1 Part names and function instructions

4. Function and operations

4.1 Power ON / OFF

Press the power switch when the power is OFF to turn the power ON.
When power is turned ON, the model is indicated, followed by internal oscillation emission or external synchronous emission.

4.1.1 LAMP ON / OFF

Press and hold the center of the dial to turn ON the LAMP when emission setting is displayed on the screen.
Press and hold again while flashing to turn OFF the LAMP.

4.1.2 Flash timer

When the Flash timer is set to a value other than 0 [minutes] in Function mode 3, the flashing will automatically cease after set time from the start of the light emission.
When the flashing stops by this flash timer, the display indicates “OFF”.
Press and hold the dial to return to the previous display.

4.1.3 Heat Lamp Indicator

When the ambient temperature of the Xenon lamp rises above a certain level, the Heat Lamp Indicator will flash.
If the temperature rises more, the Heat Lamp Indicator will remain on and the light emission will cease.
*The temperature tends to rise more quickly the higher the emission frequency is set.

4.2 Emission mode and settings

4.2.1 How to switch INT and EXT

Each press of “SIG” switches “INT” and “EXT”.。

4.3 Internal oscillation emission

・On “INT”, the Xenon lamp flashes at the displayed emission count.
・”INT” has the following 2 mode settings.

4.3.1 FPM mode setting (INT)

The emission count (frequency) can be set in FPM mode.
Turn the dial in a CW direction to increase the emission count, and in a CCW direction to decrease it.
(Turn the dial fast to change the setting value greatly, and slowly to change it slightly.)

4.3.2 PHA mode (INT)

When the rotation (motion) cycle of a measured object matches with the strobe flash cycle, the measured object appears to stand still. Use the PHA mode in order to adjust the stop angle (position).
The phase can be changed by 1° using dial within the range between 1° and 359° in the PHA mode.
Press “UNIT” to switch to PHA mode (ms).
(The phase can be changed by 0.01 [ms] within the range between 0.00 and 999.99 [ms] and by 0.1 [ms] within the range between 1000.0 and 1994.4 [ms].)
A time longer than the light emission cycle cannot be set. (PHA mode ms)
Press “MODE” in PHA mode to switch to FPM mode.

4.4 External synchronous emission

External synchronous emission is the function to emit a strobe flash in synchronization with an external trigger pulse input.
You can set which edge of the external trigger pulse triggers emission, the rising edge or falling edge.
A timing (delay) from the external trigger pulse input with the strobe flash emission can be optionally set using time and angle.

EXT has the following 2 mode settings.

4.4.1 FPM mode setting (EXT)

4.4.2 PHA mode setting (EXT)

Delay emission can be set within the input signal range between 27 and 35020 [fpm].
In the PHA mode, the phase from the external trigger pulse entry to strobe flash emission can be changed by 1° using the dial within the range between 1° and 359°.
Press “UNIT” to toggle between PHA mode (DEG) and PHA mode (ms).
The phase can be changed by 0.01 [ms] within the range between 0.00 and 999.99 [ms], by 0.1 [ms] within the range between 1000.0 and 2216.0 [ms].
A time longer than the light emission cycle cannot be set. (PHA mode ms)
Press “MODE” in PHA mode to switch to FPM mode.

4.5 Function mode

Turn the power ON while pressing the “MODE” to enter the function mode.
During the function mode, turn the dial (CW/CCW) to change the settings.
And press “MODE” to save the setting and move to the next setting item. (F1⇒F2⇒F3⇒F4⇒F5⇒F6 end )
If the power is turned OFF in the middle of the function mode, the changed value will not be saved in the memory.

4.5.1 The setting items

The setting items in the following table can be configured in the function mode.

4.5.2 Instructions about function mode

How to move to function mode.
Turn the power ON while pressing the “MODE” to enter the function mode

In function mode 2, in which the edge of the external pulse triggers emission, the rising edge or falling edge, can be set (for EXT).

In function mode 3, auto emission stop time can be changed.

In function mode 3, auto emission stop time can be changed.

In function mode 4, the input circuit setting can be changed

In function mode 5, the measurement range on INT can be set.

4.6 Saving function

This unit can save the setting values in two ways.

Power OFF save：While using the unit while on INT and EXT, turn the power OFF to save the setting value to that which it was before turning the power OFF.
When the power is turned ON again, operation starts from the previous setting value.

Memory save：The setting values on the screen can be saved as the SELECT number.
Since the SELECT number have five memories, the setting can be saved as five patterns

4.6.1 Saving the setting values

The setting values are saved as the following figure.

*1 When you press “ZERO” in Delay angle mode, the value (delay angle) on the display is different from the actual value.

In that case, the value on the display will be saved.

*2 When you turn the power OFF to save, the calculated delay time based on delay angle will be saved.

4.6.2 How to save the setting values

The setting values can be saved by the operations as followings.

4.6.3 Initialize

The memory can be erased by initializing the saving function.

4.6.4 Initializing the setting values

The current settings will be erased and replaced as follows. (Including the function mode.)

4.7 Reading memory function

4.7.1 Reading values

Press “LOAD” and read the saving values as the figure on 4.6.1

4.7.2 How to read the memory

4.8 External signal I/O connector specifications and Pin assignment

4.9 External pulse input

Connect the unit to external devices (sensors, etc.) to allow the strobe to emit light using the pulse signal from the devices on external synchronous emission.

Available input frequency ： Available measurement range 27 to 35020 fpm（0.45 to 583.7 Hz）
： Available delay emission range 27 to 35020 fpm（0.45 to 583.7 Hz）
Available input signal ： Hi 2.5 to 12 V
： Lo 0 to 0.5 V
Available input pulse width ： 50 μs or more (edge trigger)
Input impedance ： 10 kΩ ( at voltage input )

4.10 External pulse output

4.11 Lamp replacement

The life of a xenon lamp is about 1200 hours when it is emitted at 1500 fpm each time. Although rotation speed is displayed, no flash is emitted. When the flash is intermittently emitted, this indicates the lamp must be replaced. Be sure to replace the lamp with the following steps. Be sure to use the specified lamp. Please contact us or the retailer where you purchased this product if you need it.

Be sure to turn the power OFF. May result in electric shock

The lamp is hot and may cause burns.
After emission stops, let the stroboscope sit for 30 minutes or longer. Be sure stroboscope is cool to the touch before replacing the lamp.

① Remove the protection window by loosening the 4 screws. Insert a thin screw driver into a hole of the protection window and pull out.
② Remove the reflector and Insert the lamp insertion holder as far as it will go. Then turn it CW two or three times and pull out straight with lamp.

Be sure to use a lamp insertion holder. Pulling out lamp by hand may cause injury.

③ Insert new lamp into the lamp insertion holder with seeig the figure below. And press it to the socket in the proper direction.
④ Turn the lamp insertion holder CCW and pull out. And put carefully the reflector on the case properly.
⑤ Put the protection window back with 4 screws.
* In order to maintain protection, be sure to fix the protective window. (Tightening torque: 0.3N-m or less)

4.12 Battery replacement

If the built-in battery-life duration becomes short, replace the battery with one that is specificated. Be sure to use the specified battery. Please contact us or the retailer where you purchased this product if you need it.

Be sure to turn the power OFF. May result in electric shock

Do not replace the battery near flammable materials.

① Remove the six screws on the bottom of the DT-3015N main unit, and take out the built-in battery.
② Remove the connector and battery fixing screws.
③ Cut the insulok that is holding the battery onnector with nippers,etcs.
* Please take care not to scratch the connector cable and the battery with nippers.
④ Remove the four battery fixing screws and the top cover.
⑤ Take out the battery from the battery case, and replace with a new battery.
* Please be careful that the harness faces the outside.
⑥ Insert the Insulock attached to the battery through the Insulock through hole on the top cover.
⑦ Secure the connector cable with the Insulock so that the battery connector contacts the top cover.(Refer to the Detail drawing) *Please tighten it strongly.

④ Attach the top cover to the battery case and fix it with the fixing screws (4 places-tightening torque 0.3 Nm).
⑤ Connect the battery connector to the main body connector.

⑩ Install the battery in the main unit and fix it with the battery case fixing screws (6 places-tightening torque 0.6 N·m).

5. Specifications

5.1 Specifications list

* 1 The lamp may flicker in high frequency, but it is not failure. It can be measured by instruments so please continue to use it.
* 2 If noise causes signal integrity issues from the external input sensors, please take measures such as connecting a ferrite core to the signal line.

5.2 External dimensions

6. Troubleshooting

Specifications

Safety Precautions: Danger and Caution
Usage: Emission in synchronization with external trigger pulse,
Phase Shift function, Rechargeable
Operating Conditions: 45-85% relative humidity

FAQ

Q: Can I use the product in a flammable environment?

A: No, using the product in a flammable environment may result in a fire hazard. It is strictly prohibited.

Q: How should I clean the unit?

A: Clean the unit with a soft dry cloth or a cloth dampened with diluted neutral detergent. Avoid using volatile chemicals like benzine, thinner, or alcohol.

Q: What should I do if the unit heats up during prolonged use?

A: To prevent overheating, fix the strobe using a tripod or similar support. Avoid direct skin contact with the unit to prevent burns and potential malfunctions.

Documents / Resources

DT DT-3015N Portable Xenon Stroboscope [pdf] Instruction Manual
DT-3015N Portable Xenon Stroboscope, DT-3015N, Portable Xenon Stroboscope, Xenon, Stroboscope

References

User Manual

DT-3015N Portable Xenon Stroboscope

Safety Precautions