ISO-9001, CE, IEC1010
FEATURES
* Push keyboard setting.
* External trigger input.
* RS232 computer interface output.
* Flash rate :
5 to 10,500 RPM/FPM.
0.083 to 175 Hz
* Display 14 mm LED, 6 digits.
* High resolution.
* Main function : Fine adjust, Coarse adjust, Multiply by 2, Divide by 2, Fast finder, Memory recall.
* Memorize 10 sets of measuring data.
* Crystal time base and microprocessor circuit, not necessary take any calibration procedures.
* Power supply : AC 110V/220V/230V, 50/60 Hz.
* Application for inspecting and measuring the speed of moving gears, fans, centrifuges, pumps, motors,
general industrial maintenance, production, quality control, laboratories, schools and colleges...
* DT-2269 is a microprocessor circuit design, high accuracy, digital readout STROBOSCOPE. Adjusting
the "Flash Rate" by push button keyboard, unique design in the world, easy operating & with intelligent
function. That is ideal for inspecting and measuring the speed of moving gears, fans, centrifuges,
pumps, motors and other equipment used in general industrial maintenance, production, quality control,
laboratories and as well as for schools and colleges for demonstrating strobe action.
* External trigger input.
* RS232 computer interface output.
SPECIFICATIONS
Display 14 mm ( 0.56" ) LED, 6 digits.
Set up unit Flash rate - RPM/FPM, Hz * FPM - flash per minute
Flash rate set up range
RPM 5 to 12,500 RPM.
Hz 0.083 to 175 Hz.
Resolution ( internal trigger )
RPM/FPM
0.1 RPM
5 to 999.9 RPM
1 RPM
1,000 to 9,999 RPM
10 RPM
10,000 to 12,500 RPM
Hz
0.001 Hz
< 10 Hz
0.01 Hz
10 Hz - 99.99 Hz
0.1 Hz
100 - 208 Hz
Accuracy ± ( 0.15 % + 0.2 RPM ) rdg. < 1,000 RPM
± ( 0.5 % + 1 RPM ) rdg.
1,000 to 3,300 RPM
± 1 % FS.
3,301, to 12,500 RPM
rdg : reading, FS : full scale
Switch Select Function:
RPM, Hz
Fine adjust, Coarse adjust,
Multiply by 2, Divide by 2,
Fast finder, Memory recall.
Memory Can memorize 10 sets of measuring data.
Set up stability 1 digit within 10 minute.
Data output RS 232 computer interface.
External trigger Input signal : 5V to 30 V rms,
5 to 10,500 RPM.
0.083 to 175 Hz.
Power supply
AC 110V 10%, 50/60 Hz.
or AC 220V 10%, 50/60 Hz.
or AC 230V 10%, 50/60 Hz.
Circuit
This stroboscope/tachometer
employs an custom one-chip
of microcomputer LSI circuit
& crystal control time base
which results in extraordinary
accuracy & high set up
stability over a wide, dynamic
range.
Power consumption: Less than 30 Watt.
Operating temp. 0 to 50 ℃ (32 to 122 ℉).
Operating humidity Less than 80% R.H.
Dimension 21 x 12 x 12 cm
( 8.3 x 4.8 x 4.8 inch ).
Weight 1Kg/2.2 LB.
Housing case Compact and impact plastic
injection case with plastic
mirror type reflector.
Calibration :
Crystal time base and microprocessor circuit, not necessary take any external calibration procedure if the
stroboscope working properly.
Accessories included:
Operation manual........1 PC.
Power cord..................1 PC.
Optional Accessory RS232 cable................UPCB-02
Operating duty Cycle:
For prolong life and safe operation, please adhere to the following duty cycle:
< 2000 RPM - 2 hours, 2000 to 3600 RPM - one hour,
3601 to 8000 RPM - 30 minutes, > 8000 RPM - 10 minutes.
* 10 min. cooling off period between cycles.
FLASH TUBE SPECIFICATIONS:
Flash tube Xenon lamp.
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 degrees.
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.
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.
Remark When order the stroboscope, should inform the power supply type is AC 110V, or
220 V or 230V.
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