Handheld Digital Tachometer
(High Rotational Speed Measurement Model)
The HR-6800 is a non-contact type handheld digital tachometer, which can measure the high speed rotational speed at Max. 999,990 r/min with high accuracy.
In addition to the objects such as the dental hand piece or yarn texturizing machine, the non-contact rotational speed measurement of the high-speed cutting drill or high-speed motor itself is simply possible with direct reading at the unit of r/min by closing the magnetic-electro detector with magnetizing the rotated object or figure of the drill.
Wide range of the rotational speed measurement is possible from 100 r/min to 999,990 r/min. Not only analogue output (switch-able to monitor output signal) but also the pulse output signal are provided as standard.
Analogue signal can be used as recording signal to data recorder and so on. Monitor signal can be used in order to check the signal waveform or to be analyzed by FFT analyzer. Further, pulse signal can be input to FFT analyzer as external sampling signal of tracking analysis.
The measurement result can be memorized into internal memory at Max. 20 data, which is convenient for check and recording after the measurement.
High-speed rotation measurement from 100 to 999,990 r/min
· Built-in memory function Up to a maximum of 20 data can be saved to memory.
· Both analog and pulse outputs provided as standard. Used for recording rotational speeds and as rotation synchronization signals
· Built-in peak hold function - The maximum and minimum values can be displayed during measurement.
· Large LCD with backlight
HR-6800 Digital Tachometer
|Target measurement objects||
Rotating objects used in dentistry, rotating objects used in texturizing machine, rotating objects used in high-speed machine tools
Note: Target measurement objects must be magnetized.
|Display||Large-size 5-digit LCD (Character height: 10.2 mm)|
|Measurement time||Within 50 ms + the time required for 10 input signal cycles|
|Display refresh rate||Approx. 1 second or 0.5 second, selectable|
|Measurement unit||10 r/min (rotational speed)|
|Rotational speed measurement range||
Note: When the number of pulses setting is 1.
Displayed value x ( ± 0.02 %) ± 1 count
|Peak hold function||Maximum value (MAX), minimum value (MIN)|
|Memory function||Up to a maximum of 20 data|
|Over-range display||An ERROR mark is displayed when the measured value exceeds the measurement range.|
|Rotation upper limit alarm function||An upper limit alarm mark ( ↑ mark) is displayed when the rotational speed exceeds the preset upper limit value.|
|Analog output||Output in
proportional to the displayed rotational speed values.
Output voltage: 0 to 1V / 0 to F.S. (F.S. is specified by user.)
Output update time: Within 50 ms + the time required for 10 input signal cycles
|Monitor output||Analog output after
the sensor signal waveform has been shaped.
(prior to pulse waveform conversion)
|Pulse output||One pulse per signal
Output voltage: Hi level; At least 4.5 V
Lo level; Up to 0.5 V
|Power source||Four AAA-type batteries (1.5 V) or exclusive AC adapter (PB-7090, sold separately)|
|Battery life||Approx. 13 hours
(when the backlight is OFF.)
Approx. 8 hours (when the backlight is ON.)
(when alkaline batteries are used at 20°C)
|Operating temperature||0 to +40°C|
|Storage temperature||-10 to +50°C|
|Outer dimensions||66 (W) x 189.5 (L) x 47.5 (D) mm|
|Weight||Approx. 280 g (including the batteries)|
MP-5350 Electromagnetic Detector
|Detection method||Electromagnetic induction|
(provided as standard)
|1-m length (with a BNC connector at both ends)|
|Operating temperature||0 to +40 °C|
|Storage temperature||-10 to +50 °C|
|Outer dimensions||107 x Φ14 mm|
|Weight||Approx. 50 g (excluding signal cable)|
AC adapter PB-7090
|Analogue output signal cable AX-501
Magnetic stand/stand jig
The state which attached