DT-2858 tachometer
Used to measure rotative velocity, surface speed, frequency of motor. Applicable to the product departments of motor, fan, chemical fiber, washing-machine, automobile, airplane, steamer etc.
Features
* Multifunctional, one instrument combines PHOTO TACH.(RPM) & CONTACT TACH. (RPM , m / min, ft / min ).
* Digital display with no guessing errors.
* Wide measuring range and high resolution.
* The last value / max. value / min. value will be automatically stored in memory.
* The use of durable, long-lasting components, including a strong, light weight ABS-plastic housing assures elegant shape and ease of use.
| Model | Photo | Contact | Surface Speed | Frequency | Cycle | Pulse Times | Pulse Distance |
| DT-2859 | √ | √ | √ | √ | √ | √ | √ |
| DT-2236 | √ | √ | √ | — | — | — | — |
| DT-2858 | √ | √ | √ | — | — | — | — |
| DT-2857 | √ | — | — | — | — | — | — |
| DT-2856 | √ | √ | — | — | — | — | — |
| Model | DT-2236 | DT-2858 | DT-2857 | DT-2856 | |
| DT-2236L(Laser Type) | |||||
| Range | Laser | 2.5~99,999r/min | |||
| Contact | 0.5~19,999r/min | ——- | 0.5~19,999r/min | ||
| Surface Speed | 0.05~1999.9 m/min | ——- | ——- | ||
| 0.2~6560 ft/min | ——- | ——- | |||
| Resolution | Tachometer | 0.1 r/min(0.5~999.9 r/min) | |||
| 1 r/min(Over 1000 r/min) | |||||
| Surface
Speed |
0.01 m/min(0.05~99.9 m/min) | ||||
| 1 m/min(Over 100 m/min) | |||||
| 0.1 ft/min(0.1~999.9 ft/min) | |||||
| 1 ft/min(Over 1000 ft/min) | |||||
| Accuracy | ±(0.05%n+1d) | ||||
| Sampling Time | 1.0 s(Over 60 r/min) | ||||
| Test Range Select | Automation | ||||
| Memory | Max / Min / Last Value | ||||
| Time Base | Quartz Crystal | ||||
| Laser Tach Detecting Distance | 50~150mm/2~6inch(Typical),Max,300mm/12inch | 50~250mm/2~10inch(Typical),Max600mm/14 inch | 50~150mm/2~6inch(Typical),Max300mm/12inch | ||
| Power Supply | 80mA(Testing) | ||||
| Dimensions | 0~50ºC | ||||
| Weight | 4×1.5V AA Size(UM-3)Battery | ||||
| Standard Accessories | 215x64x38mm | 215x74x32mm | 145x74x32mm | 215x74x32mm | |
| 300g | 280g | 260g | 280g | ||
| Main Unit | |||||
| Surface Speed Test Wheel(AS35C) | ——- | ——- | |||
| Cone Adapter(AS35A) |
——- |
Cone Adapter(AS35A) | |||
| Funnel Adapter(AS35B) | ——- | Funnel Adapter(AS35B) | |||
| Reflective Tape 350mm | |||||
| Carrying Case(B01) | |||||
| Operation Manual | |||||
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