Non-contact digital handheld tachometer
HT-4200
A user-friendly, high-performance, compact, handheld, non-contact Digital Tachometer.
By attaching a reflective mark to the shaft to indicate rotation, and simply pointing the device at the reflective mark and pressing the measurement button, the device displays rotation speeds from 30 to 50,000 r/min with high-precision direct reading. Up to 10 measurement results can be saved as history in the internal memory. Furthermore, it supports input of multiple reflective mark signals; for example, by attaching 8 reflective marks to the shaft, measurement from extremely low speeds of 4 r/min becomes possible.
The user-friendly, ergonomically designed housing is small and slim enough to fit in a breast pocket. Because it uses a non-contact method that measures using light, it is extremely safe, and there is no need to worry about applying unnecessary force or load to rotating parts, ensuring reliable measurements.
*Please provide your own batteries.
| Measurement section | |||||||||||||||
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| Arithmetic method | Periodic calculation method | ||||||||||||||
| Unit of measurement | 1 r/min | ||||||||||||||
| Rotational speed measurement range |
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| Measurement accuracy |
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| Overrange display |
If the measured value exceeds the respective measurement range, the displayed value is fixed at the maximum value and the display unit shows an ERROR mark "ERROR". |
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| Detection unit | |||||||||||||||
| Detection method | Visible light photoelectric reflective type | ||||||||||||||
| Detection distance | 20–300 mm | ||||||||||||||
| Light source | Red light-emitting diode | ||||||||||||||
| light-receiving element | Phototransistor | ||||||||||||||
| Detection Mark | Number of reflection marks per rotation Supports 1, 2, 3, 4, 6, and 8 sheets via a switch. |
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| Display section | |||||||||||||||
| Number of display digits | 5 digits | ||||||||||||||
| Character height | 10.5 mm | ||||||||||||||
| Display method | LCD 7-segment | ||||||||||||||
| Display update time | 1 second (however, 2 seconds at rotation speeds of 60/reflection marks r/min or less) | ||||||||||||||
| Measurement mode | |||||||||||||||
| Data hold function | After measurement is complete, the final measurement value will be displayed for approximately 30 seconds, and then the display will automatically turn off (auto power off) after 30 seconds. | ||||||||||||||
| Memory function | Up to 10 measurement values can be stored in memory at the time the MEMORY/COND switch is pressed. Since this memory value is stored in non-volatile memory, it will be retained even if the power supply is cut off. |
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| Pulse count setting function | 1, 2, 3, 4, 6, 8 P/R (selector switch) *Corresponds to the number of reflective marks (number of input signals) in the rotation speed measurement range. | ||||||||||||||
| General specifications | |||||||||||||||
| Power supply | 3 x AAA batteries (1.5V) | ||||||||||||||
| Continuous use time | Approximately 20 hours (using alkaline batteries, at 20°C) | ||||||||||||||
| Low battery indicator | The LOW indicator lights up when the battery voltage drops below approximately 3.3V. | ||||||||||||||
| Operating temperature range | 0 to +40 ℃ | ||||||||||||||
| Storage temperature range | -10 to +55°C | ||||||||||||||
| Operating humidity range | 35–85%RH | ||||||||||||||
| Storage humidity range | 35–85%RH | ||||||||||||||
| Weight | Approximately 90 g (excluding batteries) | ||||||||||||||
| Outline drawings | 62(W)×129(H)×26.4(D)mm
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| Conforming standards (CE marking) | |||||||||||||||
| EMC directive | 2014/30/EU Standard EN61326-1 | ||||||||||||||
| RoHS Directive | 2011/65/EU Standard EN IEC 63000 | ||||||||||||||
| others | |||||||||||||||
| Accessories | Reflective markings (1 sheet, 25 pieces, 12 mm square), Instruction manual (Japanese/English) x 1 | ||||||||||||||
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| Option |
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HT-011 Reflective Marks (10 sheets = 1 set)