Shimpo DT-725 User manual

Instruction ManualInstruction Manual
Instruction ManualInstruction Manual
Instruction Manual
DigitalDigital
DigitalDigital
Digital
Stroboscope/TStroboscope/T
Stroboscope/TStroboscope/T
Stroboscope/Tachometerachometer
achometerachometer
achometer
Model DTModel DT
Model DTModel DT
Model DT-725-725
-725-725
-725
Features
Operational Precautions
!Do not operate or store instrument in the following
places:
Explosive areas
Near water, oil, dust or chemicals
Areas where temperature is above 104°F (40°C).
!Do not look at the emitted light for long periods of
time; it can be harmful to the eyes.
!Do not disassemble or repair unit while in operation.
!To mount the strobe on a tripod (or any other
mounting surface), use screw 1/4 - 20unc, length
8mm or shorter, for the tripod screw hole on the bottom.
Setter
The setter changes the flashing rate. Turn CW to
increase the rate, turn CCW to decrease rate.
x2 Switch
Pressing "x2" will double and display the flashing rate.
1/2 Switch
Pressing the "1/2" will divide flashing rate by two and
display it.
Plus (+) Switch
When object appears to be standing still, pressing "+"
will give the illusion that the object is moving towards
the opposite direction of rotation. This action increases
the rate slightly (phase shift) and is used to place the
object in desired position.
Minus (–) Switch
When object appears to be standing still, pressing "–"
will give the illusion that the object is moving towards
the rotating direction. This action decreases the rate
slightly (phase shif) and is used for the same reason as
above.
Input and Output Connectors
Phonejack (3.5 mm)
Tip: Signal
Sleeve: GND
Power switch with lock option

Operation
True RPM
Internal Triggering
1. Charge battery for approx. 15 hrs. before using strobe
for the first time.
2. Aim light beam at object under observation. The best
distance between the strobe and moving object is
approximately 2 ft.
3. Measure rpm by turning setter. Turn setter to adjust the
flashing rate to the rotational speed of the object. To
reach the desired rate faster, use the 1/2 or x2 switches.
External Triggering
1. Connect wires according to connector pin designation:
Tip: signal
Sleeve: Gnd
2. Pull power trigger switch and lock it. When the ext.
phone jack is inserted in unit, the strobe automatically
switches from the internal mode to the external.
3. The strobe will flash every time the sensor puts out a
pulse. See specifications table for input signal require-
ments.
4. If the input signal frequency exceeds upper or lower
limits, the alarm mark will be displayed and the strobe
will stop flashing.
Synchronous Output Signal
The Synchronous output signal appears on the tip of the
output phonejack.
See table for more information.
Allstrobesgivetheillusionofstoppedmotionwhenflashing
in submultiples of the true speed.
To obtain the correct rpm, turn knob from highest fpm
downward. When the first single image appears, read the
true rpm. To verify it, press "1/2". A single image will appear
again.
Memory
When the strobe is turned off and on again at a later time, it
will start to flash at the previous displayed rate regardless if
the setter has been moved or not.
Rotation of shaft
(rpm) Number of flashes (rpm) Flashes/ rpm shaft Number of stopped images
at
1,500 rpm
6,000 4 times 4
4,500 3 times 3
3,000 2 times 2
1,500 1 times 1
750 1/2 times 1
500 1/3 times 1

When FPM reading is displayed but unit is not flashing,
flash tube may need to be replaced.
1. Unplug line cord from power line. Turn power switch
OFF. Wait a few minutes until stroboscope is cool
before replacing flash tube.
2. Remove protective window by removing the 4 screws.
3. Use a rag and pull the tube out of its socket by rocking
it slightly up and down. Do not use bare hands to
remove tube, it may break and cause injury.
4. Insert new tube using the technique mentioned above.
Make sure that the tube is placed properly in the socket
otherwise it will touch the reflector. Tube should be set
symetrically within the neck of the reflector.
5. Replace protective window.
Flash Tube Replacement
MODELMODEL
MODELMODEL
MODEL DTDT
DTDT
DT- 725(DC)- 725(DC)
- 725(DC)- 725(DC)
- 725(DC)
FLASHING RANGEFLASHING RANGE
FLASHING RANGEFLASHING RANGE
FLASHING RANGE 40 — 12,500 FPM (Flashes Per Minute)
ACCURACYACCURACY
ACCURACYACCURACY
ACCURACY ±0.02% of reading
RESOLRESOL
RESOLRESOL
RESOLUTIONUTION
UTIONUTION
UTION 0.1 , 40.0 – 4,999.9 FPM
0.2 , 5,000.0 – 7,999.8 FPM
0.5 , 8,000.0 – 9,999.5 FPM
1.0 , 10,000.0 – 12,500.0FPM
DISPLDISPL
DISPLDISPL
DISPLAA
AA
AYY
YY
Y 5-Digit LED, 0.3" (8 mm) height
RR
RR
RAA
AA
ATETE
TETE
TE Divide by 2, Multiply by 2
UPDAUPDA
UPDAUPDA
UPDATE TIMETE TIME
TE TIMETE TIME
TE TIME Ext. mode: varies with flashing rate
OPEROPER
OPEROPER
OPERAA
AA
ATING TIMETING TIME
TING TIMETING TIME
TING TIME 1 hour when fully charged
FLASH TUBE POWER/LIFEFLASH TUBE POWER/LIFE
FLASH TUBE POWER/LIFEFLASH TUBE POWER/LIFE
FLASH TUBE POWER/LIFE Xenon, 10 W, 100 million flashes
FLFL
FLFL
FLASH DURASH DUR
ASH DURASH DUR
ASH DURAA
AA
ATIONTION
TIONTION
TION 10 - 15 µs
SIGNAL OUTPUTSIGNAL OUTPUT
SIGNAL OUTPUTSIGNAL OUTPUT
SIGNAL OUTPUT NPN Open Collector (24 VDC max.,
50 mA) 150 µs typical
PHASE SHIFPHASE SHIF
PHASE SHIFPHASE SHIF
PHASE SHIFTT
TT
T Internal mode only by using the “+”
and “–” switches
EXTEXT
EXTEXT
EXT. TRIGGER. TRIGGER
. TRIGGER. TRIGGER
. TRIGGER a) 12-24 VDC thru a 3-wire NPN output
sensor (requires external power supply)
INPUT SIGNALINPUT SIGNAL
INPUT SIGNALINPUT SIGNAL
INPUT SIGNAL b) 12 VDC thru a 2-wire proximity
sensor (leakage current 1 mA max.,
Load current 8 mA min.)
c) Switch or Relay contact
LL
LL
LOW BAOW BA
OW BAOW BA
OW BATT
TT
TTERY INDICATERY INDICA
TERY INDICATERY INDICA
TERY INDICATORTOR
TORTOR
TOR Yes
OPEROPER
OPEROPER
OPERAA
AA
ATING TEMPERTING TEMPER
TING TEMPERTING TEMPER
TING TEMPERAA
AA
ATURETURE
TURETURE
TURE 32° – 104° F (0 – 40° C)
DIMENSIONSDIMENSIONS
DIMENSIONSDIMENSIONS
DIMENSIONS 9" L x 4.3" W x 8.5" H
(Height includes handle)
WEIGHTWEIGHT
WEIGHTWEIGHT
WEIGHT 2.75 lbs (1.25 Kgs)
ACCESSORIES AVAILABLEACCESSORIES AVAILABLE
ACCESSORIES AVAILABLEACCESSORIES AVAILABLE
ACCESSORIES AVAILABLE Carrying Case
Specifications

Dimensions (mm)