Digital Stroboscope

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Digital Stroboscope

Model: DT-2350A/B 

• Exclusive One Chip Micro Controller LSI circuit
• Crystal Time Base to offer the High Accuracy 
• Wide Measuring Range
• High Resolution
• Digital display Gives Exact reading
• LOW, MEDIUM & HIGH  (3) ranges
• Display:  LCD with Anunciator
• Range:  50 to 40,000 FPM 
• Resolution:  0.1 FPM up to 1000FPM else 1FPM
• Accuracy:  ±0.05%
• Sampling Rate:  0.4 seconds 
• Auxiliary Power Supply:  230V AC 50Hz

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KUSAM MECO BRAND
Model KM 2240 60~ 40,000 RPM / FPM
Model KM 2239B 60 ~ 20,000 RPM / FPM

Stroboscope is a flash - frequency velocity measuring device. It is a rotation speed measuring device that makes use of persistence of vision. In the course of observation of an object that rotates or moves at a high speed ,adjust the flashing frequency of the device to synchronize it with rotation or movement speed of the object. Although the object being measured moves at a high- speed, it appears to move slowly or static. This is an optical phenomenon of visual persistence whereby high -speed movement of an object can be easily observed with the naked eye. By using this method, the rotation speed of various rotating objects can be measured, and the movement and defect on the surface of an object can be inspected or detected. It is widely used to detect the defects on the surface and movement track of high - speed rotating objects such as various types of rotors, meshing gears, vibration diagnostic equipment as well as textiles, printing production lines etc.

• Measuring Tach And Vibratility By Non-contact
• Large LCD Display With Backlight
• Digital Control to adjust Flash Frequency
• Low Power Consumption
• Measure Range : 60 ~ 39,000 RPM (KM 2240), 60 ~ 19,999 RPM (Model KM 2239B)
• Coarse / Fine Adjust Amplitude :< 1000 RPM Coarse adjust : ± 10 RPM ; Fine adjust : ± 0.1 RPM > 1000 RPM Coarse adjust : ± 100 RPM Fine adjust : ± 1RPM

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Testo 476 With especially high-intensity light

• High adjustment accuracy and stability thanks to setting wheel with dynamic reaction
• High-intensity light thanks to energy-optimzed switching electronics and high-performance xenon flash lamp
• Memory function (last value is stored when instrument isswitched off)
• High-performance battery pack for min. 2 hours continuous operation without mains connection over entire frequency range
• Trigger input for synchronizing the flash sequence (long term inspection)
• Tripod connection on housing

The high light-intensity hand stroboscope testo 476 is used when it is necessary to make fast-moving objects appear in slow motion. The hand stroboscope Pocket Strobe™measures and tests rotation and vibration movements. It allows the measurement of very small objects, or in places which are not directly accessible – and it does this without interrupting the production process! The testo 476 is thus optimally suitable for rpm measurements and for the inspection of components moving at high frequencies.

The energy-optimized switching electronics and the light intensive xenon flash lamp provide a high light intensity(approx. 800 Lux). testo 476 has a memory function which stores the last measurement value when the instrument is switched off. For long-term inspections of measurement objects, a trigger input is available.The high-performance battery pack allows a continuous operating time of at least 2 hours over the entire frequency range.

• Meas. range: 30 to 12500 rpm
• Accuracy ±1 digit: ±0.01% of mv
• Resolution :1 rpm
• Oper. temp. 0 to 40 °C
• Dimensions 240 x 65 x 50 mm
• Weight 415 g
• Display LCD, 1 line 
• Warranty 2 years
• Display: 5 digit LCD display
• Illumination: 800 Lux at distance of approx. 20 cm
• Flash energy: max. 150 mJ
• Flash duration: 20 μs
• Light colour: 6000 to 6500 K
• Type of operation: Rechargeable battery
• Mains voltage rech. battery: 100 to 240 V, 50/60 Hz
• Battery type: NiMH rech battery pack
• Battery charging time: max. 3.5 h
• Total discharge protection: Yes
• Overload protection: Yes
• Trickle charging: Yes
• Connection external trigger: 0 to 5 V DTL/TTL compatible; 3.5 mm /1/8 Standard plug; Uout=7.2 V unregulated
• Housing material: ABS
• Operating time: 1h at 30 to 12,500 rpm and 23°C(typically)
• Flash lamp life: 100 mio. flashes

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LUTRON DIGITAL STROBOSCOPE Model DT 2239A

The model DT-2239A is a microprocessor circuit design, high accuracy, digital readout, light duty STROBOSCOPE/TACHOMETER 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.

SPECIFICATIONS:

• Display 0.3" LED, 4 digits.
• Stroboscopic Flash Rate 100 to 10,000 flashes perminute (FPM)
• Power Supply 110 Vac 10%, 50/60 Hz.or 220 Vac 10%, 50/60 Hz.or 230 Vac 10%, 50/60 Hz.
• Accuracy:100 to 5,000 FPM/RPM) - ± 1 digit over 5000 FPM/RPM - ± 0.05%
• Operating Temp.:0 to 50 ℃ (32 to 122 ).
• Operating Humidity Less than 80% R.H.
• Dimension:HWD - 21 x 12 x 12 cm (8.3x4.8x4.8 inch).
• Weight 1Kg/2.2 LB.

FLASH TUBE SPECIFICATIONS

• Flash tube Xenon lamp.
• Flash Duration Approximately 60 to 1,000 microseconds
• 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 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:

1. Plug unit into a properly grounded 110V AC, 220V AC or 230V AC outlet.
2. Turn the power switch to "on" position.
3. 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 inunison (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 besure 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.

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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.

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 inunison (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.