DT-2259 photoelectricity revolution counter + frequency shows appearance
Characteristic: A watch combines function of two kinds of watches, enclothe great majority rotate speed to measure a situation, best-selling model
Characteristic:
Cabinet integrated circuit board design, pinpoint accuracy, measure range big, the number shows.
1. number frequency shows appearance
Measurable limits arrives from 100RPM 100, 000RPM, and high accuracy number shows. Fashionable
Orange of solid high visibility is smooth, grow life, basic maintenance-free. Usable will check and be measured
Measure gear rotate speed, place fast, centrifugal speed, pump rate, motor rotate speed other with
At industrial maintenance, production, quality control, the equipment of lab, reach school institute
Frequency shows demonstrative education.
Revolution counter of 2. number photoelectricity
Blame contact RPM is measured, can measure range from 0.5 to 100, 000RPM. When measured value small
At 1000RPM resolution is 0.1RPM. Final measured value, maximum is the smallest value general from
Move store in existence memory system, should press " memory is called out time " pushbutton can be shown come. Tall
Clear liquid crystal shows screen makes reading clearer without by accident.
3. other
The instrument uses durable and abiding material to cause, and add send horniness portable case. Be aimed at hand
The design suits single hand operation.
Main norms
- . Show: 5 numbers, 10mmLCD
- . Precision: ± (0.1 ％ + 2)
- . Sampling time: 1 second (> ＝ 60RPM)
- . Time base: Quartz crystal
- . Advocate board: The one form of characters or letters of special design is compositive LSI circuit board
- . Batteries: 4 × 1.5V AA
- . Working temperature: 0 - 50 ° C
- . Working humidity: Under 80 ％ RH
- . Dimension: 65 × of 215 × 38mm
- . Weight: Connect batteries 300g
Accessory:
- . 1 manual of portable box × × 1

DT-2259 photoelectricity revolution counter electric parameter

Measure range

5 to 99999RPM

Resolution

0.1RPM (when <1000RPM)

1RPM (when ≧ 1000RPM)

Check range finding leaves

50 to 150mm the biggest 300mm (depend on ambient light is strong)

DT-2259 frequency shows appearance report parameter

Frequency shows rate

100. arrives 100, 000RPM  FPM: Minutely blink frequency RPM: Minutely rotational frequency

Frequency shows adjusting range

A: 100-1000FPM
B: 1000-10000FPM
C: 10000-100000FPM

Resolution

0.1FPM/RPM (when <1000RPM)
1FPM/RPM (> when 1000RPM)

Flashtube

Efficient LED lamp

Blink continuously

60 to 1000 small seconds

Flashy color

Orange

Blink continuously

Make an appointment with 16% cycle

Glitter adjusts button

Coarse adjustment

Thin tone

Calibration

Quartz time base and microcircuit, need not exterior calibration

Operation measure (frequency shows appearance)
* preparation: Choose to measure span with choice key first (1000RPM, 10, 000RPM, 100, 000RPM)
* measures speed: When measure, must ensure blink frequency and frequency of the content that be measured to maintain one-to-one relationship,
When flash rate 2 times 3 times or 4 times at be being measured when frequency, also can see dormant effect, this can be regarded only
It is the phenomenon of a kind of in harmony of frequency. Measure the uniqueness of the result to ensure, debug knob until appear
Two video, (at this moment reading is actual double) , decrease next blink frequency until appear onefold
stable image, at this moment reading a value is the reading with actual rotate speed of the content that be measured.
* detects motion: Want to analyse athletic case, need to press the frequency with afore-mentioned methodological very actual set to shine, slow rotate
Knob, will appear slow-motion effect offers an analysis.