Nidec Shimpo DT-311J-230V User manual

Model DT-311J
And
DT-311J-230V(AC)
DIGITAL STROBOSCOPE
INSTRUCTION MANUAL

1. GENERAL
The DT-311J DIGITAL STROBOSCOPE is designed to assist mechanical
timing adjustments and emit flashes synchronously with an external
signal and an internal signal. Flashes can be delayed continuously from 0
up to 359 degrees at a positive edge of an external signal by regulating
the adjustment knob and the delayed angle is shown on the LED display.
Zero position can be set to any optimal synchronous position. Revolutions
per minute (RPM) can also be displayed.
IMPORTANT SAFETY INSTRUCTIONS
Do not apply a strong shock or rapid temperature change to the unit.
Especially, do not leave it where temperature will rise: for instance, in a
closed automobile, exposed to direct sunlight, near a stove, open flame, etc.
This instrument is protected against water drips. Do not spray or immerse in
water. Do not open and disassemble the unit. Make sure of proper voltage!
(1) Do not use stroboscope in an explosive atmosphere as it generates
high electrical energy pulses.
(2) To avoid potential eye damage, do not look directly at flashes.
(3) Before operation, make sure there is no damage on the provided AC
voltage line cable. If the cable is damaged, replace it with a new one.
(4) To protect against water drips, carefully thread the power cable
connector firmly to the stroboscope. After metal connector of the
cable has been properly fitted onto the body, the power cable can
then be safely plugged into a properly grounded AC receptacle.

2. SPECIFICATIONS
(1) Flashing range 200 – 1,500 rpm
(2) Phase shift 0 – 359º
(3) Internal signal range 200 up to 1,500 rpm
(4) Delay setter ROTARY ENCODER
(5) Display 4 digits, 10mm high, Red LED
(6) Divided ratio 1/1, 1/2, 1/3, 1/4, 2/4 with shift
(7) Input signal High level, 5 to 24v pulse width,
2 msec min.
Low level, 0 to 1v pulse width,
2 msec min.
1p/r.
Output impedance less than 10k
ohms
(8) Input impedance 47k ohms
(9) Display mode phase shift (degree), Tachometer
(10) Accuracy +/- 1 digit
(11) Flash tube Xenon lamp: Max 10W at 1,500 rpm
Life: 100 million flashes
(12) Operating temperature 32º - 104º F (0 - 40º C)
(13) Power requirement 110 VAC, (230VAC model) +/-10% at
50/60 Hz
(14) Power consumption 20 VA MAX
(15) Dimensions 8.43”L x 5.87”W x 6.85”H
(214 mm x 149 mm x 174 mm)
(16) Weight 4.19 lb (1.9kg)
(17) Accessories included 6m (19’) cable with connector, 1 pc.
Instruction manual, warranty card

3. DIAGRAM
A. Front panel
(1) Xenon lamp
(2) Protective window
(3) Protective window screws
(4) Reflector
(5) Handle
B. Rear (Display & Operation panel)
(1) Delayed angle or rpm display
(2) Mode indicators

(3) Power switch
(4) Connector
(5) Mode select switch
(6) Setting knob: for Flash Rate and Phase Shift adjustment
(7) Zero setting switch
(8) Divide ratio select switch
(9) Stroboscope flash: on/off switch
(10) Shift switch
4. CABLE CONNECTION
Connect power and signal with provided cable as follows:
AC plug (with 3-prong plug) 110 VAC or 230VAC at 50/60 Hz
Red clip Signal (positive)
Black clip 0V
5. MODE SELECTION
Press (MODE) switch (5) to select internal or external signal mode.

6. INTERNAL SIGNAL OPERATION
When internal signal mode is selected (‘INT’ LED on), flash rate is
adjusted by turning the setting knob (6).
7. EXTERNAL SIGNAL OPERATION
When external signal mode is selected (‘deg’ or ‘rpm’ LED on), flashing
rate is synchronized with the external signal.
Deg Delayed angle Degree
rpm # of revolutions per 1 minute rpm
(1)DIVIDE RATIO SETTING (See 8. FLASH INTERVAL for detail)
Select 1/1 to provide a flash per every 1 rotation.
Select 1/2 to provide a flash per every 2 rotations.
Select 1/3 to provide a flash per every 3 rotations.
Select 1/4 to provide a flash per every 4 rotations.
Select 2/4 to provide two continuously flashes per 4 rotations.
(2)PHASE SHIFT
Turning the Phase shift setting knob clockwise or counterclockwise,;
the flashing phase will be shifted.
Pressing the zero set button (ZERO) makes the display “0” at any
angle.

8. FLASH INTERVAL
(1) FLASH MODE
Flashing behavior at each mode.
360°
Input
pulse
1 2345678910
MODE1/11 2345678910
MODE1/21 3579
MODE 1/3 1 4 7 10
MODE 1/4 1 5 9
MODE2/41256910

Every time you depress the shift button (SHIFT), the flashes slide to
the next pulse.
12345678910
Input
pulse
MODE1/213579
ON246810
MODE 1/3 1 4 7 10
ON 2 5 8
ON 3 6 9
ON14710
MODE 1/4 1 5 9
ON 2 6 10
ON 3 7
ON 4 8
ON 1 5 9

MODE 2/4 1 2 5 6 9 10
ON 23 67 10
ON 34 78
ON14589
ON 12 56 910
9. LAMP ON/OFF SWITCH
LAMP ON/OFF switch provides power to the lamp. To save the flash tube
and general lamp life, turn the lamp off when not in operation.
Once power is applied and no adjustments are made during the next 30
minutes, the flashing will automatically turn off the lamp causing the
display to flash rapidly. To continue operation, press the LAMP ON/OFF
switch and the flashing will continue. for another 30 minutes.

10. ALARMS
1. LOW SPEED INDICATOR (External signal operation only)
Below 180 rpm, the “under” symbol appears.
At degree mode
At rpm mode
2. HIGH SPEED INDICATOR (External signal operation only)
Over 1,550rpm “over” symbol appears.
At degree mode
At rpm mode
If AC power is low, the flashing will stop and “LLLL” will be displayed.
If an alarm symbol appears, (“under”, “over”) the stroboscope flash will
not function.

11. INPUT CIRCUITRY
12. LAMP REPLACEMENT
Indications:
•Lamp life is about 100 million flashes.
•Rotation speed is displayed, no flash is emitted.
•When the flash is intermittently emitted, this indicates the lamp must
be replaced.
•Only replace flash tube with the specified lamp: (FLASHTUBE311-J).
Directions:
(1)After unplugging the line cable from the power line, let the
stroboscope sit for about 30 minutes or longer. Be sure stroboscope is
cool to the touch before replacing the lamp.
(2)Remove the lamp protection window by loosening the 4 screws on the
window. Insert a fine screw driver into a hole of the protection window
and pull out.
(3)Remove the reflector and pull out the lamp base. Caution, do not pull
out the lamp glass directly.
(4)Do not touch the flash tube with fingers. Use a clean cloth. Press the
lamp base to the socket in the proper direction to install the new
lamp.
(5)Important: In order to maintain protection against water, be sure to
mount the reflector in the center. Fix the reflector on the former
position and fix the protective window with the 4 screws and the
sealing washers.

13. INITIAL RESET
Factory default settings: Simultaneously press the LAMP ON/OFF button
and ZERO. Next press the “Power” switch on. The memory will be cleared
and the factory default condition will resume.
Contact Shimpo Instruments with any questions or concerns:
Shimpo Instruments
1701 Glenlake Avenue
Itasca, IL 60143 USA
p: [phone]
f: [phone]
www.shimpoinst.com
[email protected]