Multi-Checker

Detection of air leakage from pipe,
abnormalities of rotating machine,discharge from electric receiving/distribution equipment
MK-730 has all Three functions!
Detection of air leakage
・ Measurement of ultrasoundfrom air leakage

・ Detection of air leakage inunapproachable place including
overhead pipes

Detection of abnormal sound on bearing
・ Detection of abnormal soundcaused by inappropriate lubricationof bearing and damage

・ Analyzing condition of bearing awayfrom rotating machine

Detection of corona discharge
・ Detection of creeping andaerial discharge by isolationdeterioration under hot line condition
・ Receiving unique frequency
components of discharge andeliminating noise eﬀectFeatures

8 spot conﬁrmed at ultrasound measurement
Identiﬁes point of sound source with a laser pointerRecords measurement data（component rate, waveform, FFT data）
Easily transferable recorded data to PC via USB cable

Checking generaged audible sound through an earphone

Multi-Checker

Detection of air leakage
Sound pressure
value

Level of soundpressure atmeasurement

Envelope detectedwaveformSound pressure
RMS value

FFT spectrum

Display for measurement result

Display for detected waveform and FFT spectrum

Detection of abnormal sound on bearing
Q：What is "Crest factor"?
A：Crest factor = Sound pressure peak value / Sound pressure RMS value
Crest factor tends to be higher by abnormal bearing.

Sound pressure value
Level of soundpressure atmeasurement

Sound pressure RMS valueSound pressure peak value

Crest factor

Sound pressure RMS value

Display for measurement result

Detection of corona discharge
Intensity rate of twice-frequencyof power supply total intensity（Discharge component rate）

Level of soundpressure atmeasuring

Converted sound pressure valueof twice-frequency ofpower supply

Display for measurement result

Envelope
detectedwaveform
FFTspectrum

Display for detected waveform and FFT spectrum

Speciﬁcations
MK-730-E

ModelAir leakage

Detection mode
Detecting frequency

Central frequency 40kHz

Detecting directionality
Display after calculation
Alarm setting

Corona discharge

Abnormal sound on bearing±8°

Sound pressure peak value,
Sound pressure RMS value,
Peak hold value at measureing,
Waveform at measuring and FFT spectrum

Sound pressure peak value,
Sound pressure RMS value,
Crest factor,
Peak hold value at measuring

Discharge component rate,
Discharge component sound pressure converted value,
Peak hold value at measuring,
Waveform at measuring and FFT spectrum

Sound pressure RMS valueSound pressure RMS value and Crest factor

Discharge component rate

Measuring point indication with laser pointer（Laser pointer light intensity Class 2 JIS C6802, Class 2 IEC 6825-1）

Auxiliary function

0.2 second

Measurement time

1.6 secondData
memory Waveform data

0.2 second

Max. 200 values

Calculation data
Max. 70 values

Max. 30 values

Max. 70 values

Buzzer by setting level excess
Signal output terminal（φ3.5mm mini jack）
USB port for memory data output（USBmini B socket）

OutputPower supply

4 AA alkaline dry batteries（over continuous 8 hours use）

Dimensions・Net weight

W 174 x H 272 x D 98mm Approx.370g（excluding batteries）

Measuring ambient

0 - 40℃, 10 - 85%RH（non condensation）

Standard conﬁguration
OptionMain unit, AA dry battery x 4, USB cable, Software（CD）*2, Earphone, Strap, Instruction manual, Inspection sheet
Soft case（MK-9702）, Carrying case（MK-9703）, Reference oscillator（MP-161）＊1 MK-730 software requires English OS for Windows Vista®, Windows® 7, WIndows® 8, 8.1 and Excel® 2003 or later.
※Windows®, Windows Vista®, Windows® 7, WIndows® 8, 8.1 and Excel® are registered trademark ofMicrosoft Corporation in the United States and other countries.

＊All speciﬁcations data contained in this catalog are subject to change without notice.

formerly Kawatetsu Advantech co.,Ltd.

URL ： http//www.jfe-advantech.co.jp/

Tokyo Head Ofﬁce（Overseas Sales）
JFE Kuramae Bldg., 2-17-4 Kuramae, Taito-ku, Tokyo
111-0051, Japane-mail：tokyo@jfe-advantech.co.jp Tel. +81-3-5825-5577 fax. +81-3-5825-5591
Head Ofﬁce and Main Plant
3-48, Takahata-cho, Nishinomiya-shi, Hyogo Pref,663-8202, Japane-mail：honsha@jfe-advantech.co.jp Tel. +81-798-66-1508 fax. +81-798-65-7025© 2016 JFE Advantech Co.,Ltd.
EC-MK-730-E-01A

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