ONO SOKKI -Handheld Digital Tachometer (High Rotational Speed Measurement Model) HR-6800

HOME >

HR-6800

Handheld Digital Tachometer
HR-6800

(High Rotational Speed Measurement Model)

	Product Brochures (PDF)
	Outer Dimension (PDF)

Photo (HR-6800 Non-contact Handheld Digital Tachometer & MP-5350 Electromagnetic Detector)

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.

Features

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

Specifications

▼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

Selected type	Range	Rotational speed range
Type A	Hi	10,000 to 999,990 r/min
Type A	Lo	100 to 50,000 r/min
Type B	-	200,000 to 999,990 r/min

Note: When the number of pulses setting is “1”.

Measurement accuracy

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 detected
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 20ºC)

Operating temperature

0 to +40ºC

Storage temperature

-10 to +50ºC

Outer dimensions

66 (W) x 189.5 (L) x 47.5 (D) mm

Weight

Approx. 280 g (including the batteries)

Accessories

AAA-type batteries 4 pieces
Tripod mounting adapter (MI-0301) 1 piece
Carrying case

▼MP-5350 Electromagnetic Detector

Detection method	Electromagnetic induction
Connection cable (provided as standard)	1-m length (with a BNC connector at both ends)
Operating temperature	0 to +40ºC
Storage temperature	-10 to +50ºC
Outer dimensions	107 x Φ14 mm
Weight	Approx. 50 g (excluding signal cable)

Options

AC adapter PB-7090

Analogue output signal cable AX-501

Magnetic stand/stand jig
HT-0522/0521A

The state which attached
the main body.

Tripod LA-0203C

Revised: 2010/12/14