Handheld Digital Tachometer
HT-6200
The HT-6200 Handheld Digital Tachometer is a battery-powered, handheld tachometer that integrates the measurement and display units to measure the engine speed of gasoline/diesel engines and the motor speed of EVs/HEVs.
Depending on the object being measured and the application, it is possible to measure the rotational speed of the target rotating object by combining it with various separately sold detectors (VP-220/1220 engine rotation detector, IP-292/IP-296 or IP-3000A/IP-3100 ignition pulse Electromagnetic Detector Electromagnetic Detector, TTL signal output detector, etc.). The measurement data can be stored in the unit's memory function, up to a maximum of 20 data points, for convenient later review.
The measurement parameters include multiple items such as rotational speed (r/min, r/s), cumulative rotational speed (count), period (ms), and peripheral speed (m/min). Both analog output (switchable with monitor output) and pulse output are standard equipment. The analog output can be used for recording with a data recorder, etc. (the monitor output can be used for checking sensor waveforms or as an input signal for analysis with an FFT analyzer), and the pulse output can be used as a signal for tracking analysis with an FFT analyzer.
Please note:
The HT-6200 may not be able to measure certain engine and motor types, or the measurement range may change depending on the type of engine and motor.
For engines and motors that have no prior usage history, please request a demo unit for testing. To request a demo unit, please contact your nearest sales office.
*Please prepare your own batteries.
Regarding the installation of the detector
When conducting driving experiments with the detector attached to the engine or motor, be sure to clean the motor surface with a degreasing agent, and use fixing brackets or similar to wrap the detector and cable around the engine or motor with wire or similar material, and secure them firmly with duct tape before use.
The OM-0102 has a hole for attaching a fall prevention wire; please use it. For safety reasons, please take sufficient measures to prevent the device from falling.
Tracking analysis of noise and vibration
The pulse output signal from the HT-6200 can be used for tracking analysis.
By simultaneously measuring acoustic and vibration data with the pulse signal from the HT-6200 using an FFT analyzer, it is possible to perform order ratio analysis and other similar analyses.
Diesel Engine Tachometer
Diesel Engine Tachometer using the engine rotation detector (VP-1220) and the HT-6200. The VP-1220 detects engine vibrations and measures engine rotation speed.
(Measurement may not be possible for engines with 6 or more cylinders.)
Motor rotation measurement for hybrid vehicles
By using the EV/HEV motor rotation detector (OM-1200), it is possible to measure the rotation of the motors in electric vehicles and hybrid vehicles.
The detector is mounted perpendicular to the motor's rotation axis.
The measurement principle involves detecting and measuring the leakage magnetic flux generated from the motor.
Measurement can be easily performed by simply attaching the detector to the outside of the motor.
No drilling of holes for the detector is required.
You need to set the number of poles (pulse count P/R) of the motor on the HT-6200.
Actual driving tests of hybrid vehicles
Using two HT-6200 units, the rotational speeds of the motor and engine were measured, and the speed was measured using a GPS speedometer (LC-8100).
Regarding the installation of the detector
When conducting driving experiments with the detector attached to the engine or motor, be sure to clean the motor surface with a degreasing agent, and use fixing brackets or similar to wrap the detector and cable around the engine or motor with wire or similar material, and secure them firmly with duct tape before use.
The OM-0102 has a hole for attaching a fall prevention wire; please use it. For safety reasons, please take sufficient measures to prevent the device from falling.
Motor rotation measurement for electrical components
The motor rotation detector (OM-1200) can be used to measure the rotation speed of motors in electrical components such as power steering motors and air conditioning fan motors.
The detector is mounted perpendicular to the motor's rotation axis.
The measurement principle involves detecting and measuring the leakage magnetic flux generated from the motor.
Therefore, measurements can be taken even when the axis of rotation is hidden.
The pulse output signal from the HT-6200 can be used for tracking analysis.
By simultaneously measuring acoustic data and the pulse signal from the HT-6200 using an FFT analyzer, tracking analysis becomes possible.
FT-2500 Advanced Tachometer
FT-7200 Advanced Handheld Tachometer
| 1. Measurement Unit | Measured object | Gasoline engine, or general rotating body | |||
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| Arithmetic method | Periodic calculation method | ||||
| Measurement time | 1 s + within 1 cycle time of the input signal | ||||
| [Engine RPM Measurement] |
(IP-292/IP-296/3000A/3100,OM-1200/200,VP-1220/202) Input frequency range: 1 Hz to 1666.67 Hz Unit of measurement: r/min (rotational speed) Measurement range example: max 20000 r/min* *Maximum rotational speed is max 20000 r/min regardless of the pulse setting. |
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| [Other than engine speed measurement] | Signal waveform (when TTL is selected): Square wave Input level (when TTL is selected): Hi DC 4.5–5.5 V, Lo DC 0–0.5 V Input frequency range: 3.33 Hz to 1666.67 Hz
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| Measurement accuracy | Displayed value * × (±0.02%) ± 1 count * The displayed value is the count value excluding the decimal point. The accuracy of the peripheral speed depends on the accuracy of the rotational speed (r/min). |
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| Overrange function | An overrange (ERROR) mark is displayed when the measured value exceeds the display range. | ||||
| Rotation limit warning function | When the rotation speed exceeds a preset upper limit, an upper limit warning (up arrow) is displayed. | ||||
| Trigger adjustment volume | Adjustable using the rotary volume control on the right side of the unit. | ||||
| 2. Detection Unit | [Engine RPM Measurement] | IP-292 / 296 / 3000A / 3100 (sold separately) option Detects the current change caused by the ignition of the gasoline engine's ignition coil. OM-1200 / 200 (sold separately) option Ignition coil of a gasoline engine or magneto rotating shaft of a magneto ignition system Leakage flux is detected using electromagnetic induction. VP-1220 / 202 (sold separately) option Detects vibrations in a 4-cylinder engine. Note: Depending on the type of engine and rotating parts, detection may not be performed correctly. |
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| [Other than engine speed measurement] | OM-1200 / 200 (sold separately) option Detecting the leakage flux of the motor. MP-9000 series (sold separately) options Electromagnetic rotation detection method using detection gears, etc. Note: Depending on the type of engine and rotating parts, detection may not be performed correctly. |
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| 3.Display section |
Number of display digits: 5 digits Character height: 10.2 mm |
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| 4. Measurement Mode | MAX (Peak Hold) | Display the maximum value during measurement. | |||
| MIN (Peak Hold) | Display the minimum value during measurement. | ||||
| NORMAL | Displaying current measurements | ||||
| Memory function | Up to 20 measurement values can be stored in memory at the time the memory 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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| 5. Analog Output Section | 【REVO】 | Voltage range | 0 ～ F.S. ／ 0 ～ 1 V | ||
| Conversion method | 10-bit D/A conversion method | ||||
| Linear number | ±1 ％ of F.S. | ||||
| Output update time | Within 50 ms + input signal cycle time *Please note that a delay of several seconds may occur if the input frequency is outside the specified range. |
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| Temperature stability | ±0.05 ％ of F.S. ／℃（ZERO & SPAN） | ||||
| Setting error | ±0.5% of FS (Factory setting error: ZERO & SPAN) | ||||
| Load resistance | 100 kΩ or more | ||||
| Output connector | Ultra-mini jack (⌀2.5) | ||||
| 【SIG】 | Output content | Analog output for monitoring after waveform shaping of the sensor signal (before pulse waveform conversion). | |||
| Load resistance | 100 kΩ or more | ||||
| Output connector | Ultra-mini jack (⌀ 2.5 / shared with REVO output) | ||||
| 6. Pulse output section | Output timing | Outputs 1 pulse for each signal detected. | |||
| Output voltage | High level; 4.5 V or higher Lo level: 0.5 V or less |
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| Output logic | Positive logic pulse | ||||
| Load resistance | 100 kΩ or more | ||||
| Output connector |
Ultra-mini jack (⌀2.5) |
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| 7. General Specifications | Power supply | 4 x AAA batteries * or dedicated AC adapter | |||
| Continuous use time | Approximately 16 hours (with backlight off) Approximately 8 hours (with backlight on) (Using alkaline batteries, at 20°C) |
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| LOW battery indicator | It lights up at approximately 4.5V (at 20℃). Due to temperature changes, the light may turn on even if the battery voltage is 4.5 V or higher. |
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| Operating temperature range | 0 ℃～＋40 ℃ | ||||
| Storage temperature range | －10 ℃～＋50 ℃ | ||||
| Operating humidity range | 35 to 85 %RH (no condensation) | ||||
| Storage humidity range | 35 to 85 %RH (no condensation) | ||||
| Weight | Approximately 230 g (main unit only / batteries not included) | ||||
| Outline drawings | 180.5 × 66.0 × 47.5 mm (main unit only)
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| 8. Applicable Standards | CE marking | EMC Directive 2014/30/EU Standard EN61326-1 RoHs Directive 2011/65/EU Standard EN IEC 63000 |
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| Accessories | Carrying case, instruction manual x 1 | ||||
| price | |||||
| Option | *The MP-981/9820 Magneto-Electric Rotation Detector cannot be used. | ||||
*Please provide your own batteries.
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