Digital Photoelectric Tachometer DT-2236B
Specifications
| Display | 5 digits 18mm (0.6") LCD |
| Accuracy | ±(0.05%+1 digit) |
| Sampling Time | 0.5sec(over 120RPM) |
| Range Selected | Auto-Ranging |
| Test Base | 6MHz Quartz crystal |
| Battery | 3x1.5V AAA battery |
| 50~500mm |
| Power Consumption | Approx 45mA |
Measuring Range:
Photo Tach | 2.5~99,999RPM |
Contact Tach | 0.5~19,999RPM |
Surface Speed | 0.05~1,999.9(m/min) |
Resolution
Photo Tach | 0.01RPM(2.5~999.99RPM) |
0.1RPM(1,000~9,999.9RPM) |
1RPM(over 10,000RPM) |
Contact Tach
| 0.01RPM(0.5~999.99RPM) |
0.1RPM(1,000~9,999.9RPM) |
1RPM(over 10,000RPM) |
Surface Speed
| 0.01m/min(0.05~99.99m/min) |
0.1m/min(over 100m/min |
Digital Photoelectric Tachometer Note
1, test, speed table pointer deflection has nothing to do with being measured axis direction of rotation, speed table test center for shaft and shaft being measured should be in the same level, header to resist rotation.
2, measuring, hand to smooth, hard right, both to avoid too loose on the top of the slide switch, caused by error occurs, also want to avoid too tight on the top of the, tachometer, damage to tachometer shaft and the shaft being measured does not produce the relative sliding between the shall prevail.
Position 3, tachometer, measuring speed, with maximum range coarse first, and then choose the appropriate range. Does not allow high speed is measured with a low gear, in order to avoid loss of header.
4, mechanical centrifugal tachometer reading dial scale is uneven, there are usually two columns of scale. If use Ⅰ, Ⅲ, gear measurement, then respectively with outer scale value multiplied by the "10", "100", "1000"; If measured with Ⅱ, block, respectively with inner ring scale value multiplied by the "10", "100".
5, tachometer should add lubricating oil before use (clock), available from the shell and range switch of oil injection hole injection.
6, instrument after use, should be wiped clean and placed in the sunshine can't direct illuminate place, away from heat source, note moistureproof and anticorrosive.
The use of digital tachometer:
More and more places are adopting non-contact type handheld digital tachometer to measure speed, when used as long as a rotating object being measured with reflective markers, aim the reflection of visible light reflection marking speed measurement can be achieved.
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DT-2236B Digital Photoelectric Tachometer Images
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