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JFE Advantech MK-750ST-E Instruction Manual

Gas leak viewer
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Instruction manual
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Gas Leak Viewer
MK-750ST-E
Thank you very much for purchasing our Gas leak viewer MK-750ST-E.
This operation manual contains essential information and tips for proper
and effective use of the instrument. Please read this manual thoroughly
before commencing operation and keep the manual in a secure place for
future reference.

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Summary of Contents for JFE Advantech MK-750ST-E

  • Page 1 Instruction manual Gas Leak Viewer MK-750ST-E Thank you very much for purchasing our Gas leak viewer MK-750ST-E. This operation manual contains essential information and tips for proper and effective use of the instrument. Please read this manual thoroughly before commencing operation and keep the manual in a secure place for...
  • Page 2 Introduction Thank you very much for purchasing the Gas Leak Viewer MK-750ST-E (hereinafter “the instrument”). Read all cautions for safety and instructions in this manual in order to ensure safe and proper use of the instrument, and to avoid danger of harming yourself and others and risk of property damage.
  • Page 3 Safety cautions Some important points to be observed are listed below to ensure correct use of the instrument to avoid any danger of harming yourself or others and to avoid any risk of property damage. Please carefully read all to make sure for correct use of the instrument. Types of icon “Point to be careful about”...
  • Page 4 ●Things to be kept in mind for using the instrument Improper use of the instrument on ignoring this caution may raise serious risk of Warning heavy injury or death. Pay attention to abnormal conditions. ・Using the instrument under abnormal conditions such as smoking and/or making strange smell may cause fire or electric shock.
  • Page 5 ●Things to be kept in mind for using the instrument (cont.) Improper use of the instrument ignoring this caution may cause human injury or Caution property damage. Memory protection ・Make sure to take backup of data in internal memory on a PC or others. Data on SD card may get corrupted or be lost due to deterioration or other reasons.
  • Page 6 ●Things to be kept in mind for AC adapter and battery charger Improper use of the instrument on ignoring this caution may raise serious risk of Warning heavy injury or death. ・Only use with specified power voltage, and never use multiple outlet cord. It may cause fire or electric shock.
  • Page 7 ●Things to be kept in mind for battery pack Improper use of the instrument on ignoring this caution may cause heavy injury Danger or dea ・Do not disassemble or modify a rechargeable battery pack. Rechargeable batteries have built-in mechanism for safety. Loosing this mechanism by disassembling or modifying may cause injury from fire, overheat, and or explosion.
  • Page 8 ●Things to be kept in mind for battery pack(cont.) Improper use of the instrument on ignoring this caution may raise serious risk of Warning heavy injury or death. ・Do not heat a battery pack, or throw it into a fire, fresh water, or sea water. It may damage its safety mechanism, destroy protection, or ignite to electrolyte causing fire or explosion leading to injury.
  • Page 9 ●Precautions for use MK-750ST-E is a precision instrument. Incorrect use or rough handling may cause malfunction or data loss. Read instruction below and use properly. ・Do not continue to use with low battery. It may cause data loss or file corruption.

  • Page 10: Table Of Contents

    Table of contents Outline ..........................1 Preparation before use ..................... 2 Enclosed items ......................2 2.1. Description ........................ 3 2.2. How to handle a battery pack ..................4 2.3. How to charge a battery pack ................4 2.3.1. How to attach a battery pack ................6 2.3.2.
  • Page 11 Delete from “Image Check” ................23 6.3.1. Delete all files (File All Delete) ................24 6.3.2. How to handle saved data ....................25 How to copy data to a PC ..................25 7.1. How to detach the instrument ..................27 7.2.

  • Page 12: Outline

    1. Outline Gas leak Viewer MK-750ST-E (hereinafter called “the instrument”) is to visualize direction of ultrasonic sound source (leak source) indicating distribution of ultrasonic sound (sound pressure) strength on image display. It is known that surrounding air vibrates in case there is a leak from a compressed air pipe or others.

  • Page 13: Preparation Before Use

    2. Preparation before use Enclosed items 2.1. The number shown in〔 〕are the quantities of the item. Wrist strap 〔1〕 Battery charger and AC power cable 〔1〕 Battery pack 〔1〕 Instruction manual 〔1〕 Protector 〔1〕※ USB cable 〔1〕 ※The protector will be attached to the instrument when delivered.

  • Page 14: Description

    Description 2.2. Name Directional pad Menu button Power button Confirm button Display Mini-USB connector Battery lid / Battery holder Platform attachment screw (1/4-20UNC) Strap hole (on 4 corners) Ultrasonic sound sensor and camera Shutter button...

  • Page 15: How To Handle A Battery Pack

    How to handle a battery pack 2.3. The instrument operates with a lithium-ion rechargeable battery. Use only the designated genuine battery pack only with the instrument. When you receive the purchased instrument, the instrument and the battery pack are enclosed in separate boxes.
  • Page 16 To confirm charge level of your battery, press the button next to the battery picture on your battery pack. LED light turns on showing the charge level. Enlarged Approximate battery charged levels are shown as below. Battery charge level 75% or more Battery charged level 50% or more Battery charged level...

  • Page 17: How To Attach A Battery Pack

    How to attach a battery pack 2.3.2. Follow the procedures shown below to attach a battery pack. It is possible to attach and detach the battery pack while the instrument is wearing the protector. Take off the battery lid while pulling the lock “①” to the direction shown by the arrow. ①...

  • Page 18: How To Detach A Battery Pack

    How to detach a battery pack 2.3.3. Take off the battery pack in case the charge level is low or you do not have a plan to use for a while. Follow the procedures shown below to detach a battery pack. ①...

  • Page 19: How To Attach A Neck Strap (Optional)

    How to attach a neck strap (Optional) 2.6. The neck strap is an optional accessory that is sold separately. It is possible to attach the neck strap while the instrument is wearing the protector and/or the wrist strap. Please attach the neck strap before use.
  • Page 20 Buckle up the strap ④ Buckle up and make sure you hear a clicking sound. The neck strap can be also strap onto the bottom side of the instrument. Strap it whichever easy for you to use. Precaution for use ...

  • Page 21: How To Operate

    3. How to operate How to turn the power ON/OFF 3.1. Hold down the power button《 》for more than 1 second to turn the power ON. Wait a while if you see the boot-up screen shown below. If you see the measurement screen such as the one shown below, then the instrument is ready. This instrument immediately switches over to measurement screen from booth-up screen.

  • Page 22: How To Check Your Battery Charged Level

    How to check your battery charged level 3.2. Your instrument’s battery charged level is shown on the right top corner in the status bar. Approximate battery charged levels are shown as below. Battery charged level 75% or more Battery charged level 50% or more Battery charged level 25% or more...

  • Page 23: Displaying Saved Image (Image Check)

    Displaying saved image (Image Check) 4.2. Follow the procedures shown below to check saved images. Press《 》while the cursor is on “Image Check” on the menu. (1) Displaying image Choosing “Image Check” shows the last image that was saved on the instrument. Following procedures allow you to check saved images, delete unneeded images, and etc.
  • Page 24 (3) Operation guide Operation guide is displayed on the left bottom. Operation guide disappears if no operation is done for certain amount of time. It reappears when you operate again. In case the instrument is unable to find certain file, then it shows an alert message (E001). Please refer to 9.2 Alert message list (p.33) for details.

  • Page 25: Leak Amount Display (Leak Setting)

    Leak amount display (Leak Setting) 4.3. Sound pressure peak value / Leak amount display setting (Peak Value Window) 4.3.1. The instrument shows you sound pressure peak value and leak amount on measurement screen if you turn “Peak Value Window” “ON". Default setting is “OFF”. Sound pressure and Leak amount ・Peak Value Window ON...

  • Page 26: Basic Setting (Basic Setting)

    Basic setting (Basic Setting) 4.4. Automatic Power-OFF and calendar information can be configured here. Automatic Power-OFF setting (Automatic Power-off Function) 4.4.1. If automatic power-OFF setting is configured, the instrument turns itself OFF in case there is no operation done for certain amount of time in sleep mode (refer to p.21). The instrument shows count down from 30 seconds before the power turns OFF.

  • Page 27: Calendar Information Setting (Date)

    Calendar information setting (Date) 4.4.2. The instrument is configured with Japan standard time as its calendar information. Please confirm your local time or the location you wish to use at and reconfigure as you like Configurable range is from 00:00 on January 1 2000 to 12:59 on December 31 2037.

  • Page 28: Measurement

    5. Measurement The instrument immediately starts measurement mode once it is booted, and you can see sound pressure map on the screen if you face it towards to a measurement target. Measurement screen (display sound pressure map) 5.1. Sound pressure map Sound pressure peak point (1) Displayed information...
  • Page 29 (2) Status bar Followings are the descriptions of information shown in the status bar on top of the screen. ③ ④ ⑤ ⑥ ⑦ ⑧ ① ② Item Description Year/Month/Day Shows current time. ① Hour : Minute You can change the date, time, and calendar format in “Basic Setting”. P: Sound Displays maximum sound pressure value in the displayed area.

  • Page 30: Display Setting

    Display setting 5.2. Measurement distance, gain, cutoff, threshold coefficient, and brightness of the display can be configured while measuring. Configure each setting to those are suitable to your measurement environment and location. Pressing the confirm button《 》or direction pad《 》shows you a window on the left bottom of the screen.
  • Page 31 Cutoff (Cut off) ③ ・If you configure cutoff sound pressure peak value, any measurement below that ratio (%) will not be displayed on the sound pressure map. ・In case there are several leak points, the display will not show the one(s) with small sound. Please configure cutoff setting larger in case you wish to measure at a location with several sound source.

  • Page 32: Sleep Mode

    Sleep mode 5.3. The instrument goes into sleep mode and the display turns off if you tap on the power button while you are measuring. It returns to measurement screen if you press any of the buttons while it is in sleep mode. You can save its power consumption in sleep mode compare to measurement screen.

  • Page 33: How To Save Files

    6. How to save files Folder 6.1. The instrument saves all data in the folder “¥LeakDetection¥SavedData” in its internal memory. Saved file list 6.2. There are 4 types of file to be saved as. (1) Photo image file ・・・ No sound pressure map File name: YYYY-MM-DD -hh-mm-ss_photo.jpg Photo image when data was saved.

  • Page 34: Delete Data

    Delete data 6.3. Saved images and sound pressure map files are stored in the internal memory. Please delete files periodically since you cannot save new files once the internal memory is full. You can delete images either one by one, or delete all images at once. Delete from “Image Check”...

  • Page 35: Delete All Files (File All Delete)

    Delete all files (File All Delete) 6.3.2. Move the cursor to “File All Delete” on the menu screen and press《 》button. Move the cursor to “Yes” using the direction pad and press《 》to delete all files. The instrument asks you if you are really sure to delete or not, so please place the cursor on “Yes” if you wish to do so, and “No”...

  • Page 36: How To Handle Saved Data

    7. How to handle saved data How to copy data to a PC 7.1. Mini-USB side USB side USB cable (enclosed) Please connect the instrument and a PC connecting mini-USB connector to the instrument and USB connector to a PC. You should see the screen shown below when you turn the instrument power You should see the same screen even if you connect the instrument with a PC using the enclosed USB cable while the instrument is ON.
  • Page 37 Confirm inner storage in MK-750ST-E from a PC. You should find “Leak Detection” folder under USB drive displayed on your PC. Click on “Leak Detection”. You should see the files in “SavedData” if you click on the folder. Please make necessary copies of the files you wish to.

  • Page 38: How To Detach The Instrument

    How to detach the instrument 7.2. Please take procedures for “safely remove hardware and eject media” when completed. The hardware name is “MK-750ST”. Choose the media “MK-750ST” to eject. Be sure to see the message before you pull out the USB cable. ※The message may differ depending on the OS version your PC is running on.

  • Page 39: About Leak Amount Display

    8. About leak amount display The displayed leak amount is calculated value from the correlation between sound pressure (loudness) and leak amount we confirmed at our facility. The error may become large since measured sound pressure differs depending on inner pressure, measurement distance, leak section area size, leak area shape, measurement angle, surrounding environment temperature, humidity, and others.
  • Page 40 10% if you get 1 meter closer from 9-meter distance, and decreases about 10% if you step away 1 meter. As mentioned above, error gets larger as the difference between the actual distance and the inputted distance gets larger. Therefore, please try to input distance that is as much close as the actual distance.

  • Page 41: Troubleshooting

    9. Troubleshooting If you think there is something wrong with the instrument 9.1. When you assume there is something wrong with the instrument, please check the list shown below. In case the countermeasures show below do not solve the issue, please contact our representative you purchased from.
  • Page 42 Symptom Assumed reason Countermeasure Refer Threshold is too high Decrease threshold coefficient (K) for p.20 for leak judgement. leak judgement. Ultrasonic sensor is The instrument’s sensitivity decreases if p.36 dirty. there is any debris attached to ultrasonic sensor. Use air-duster or soft cloth and clean it off.
  • Page 43 Symptom Assumed reason Countermeasure Refer Unable to display File corrupted. Unable to restore corrupted file. Please p.23 saved image. (E002) delete the corrupted file. Incorrect calendar Calendar Clock may off sets if you do not use the p.16 information information inside instrument for a while.

  • Page 44: Alert Message List

    Alert message list 9.2. What shown below is the list of alert that may be displayed on the instrument. Please refer to the page mentioned under “Refer” for countermeasures to take for each case. Alert message Description Refer This message appears when the p.12 instrument is unable to find the saved file.
  • Page 45 No. Alert message Description Refer This message appears when there p.23 is not enough internal memory capacity to save data. Delete some data and create some memory space. This message appears when the p.11 instrument is unable to read configuration file when booted. This message appears when the －...
  • Page 46 No. Alert message Description Refer This message appears when there p.16 is an error with clock data. Please reconfigure the clock setting. Contact our representative for inspection or repair in case reconfiguring does not solve the issue. This message appears when there p.16 is an error with clock data.

  • Page 47: How To Properly Maintain Your Instrument

    10. How to properly maintain your instrument (1) Ultrasonic sensor Ultrasonic sensor is an element to convert ultrasonic wave into electrical signal. Any debris on the sensor may lead to malfunction or cause its performance degradation. Make sure no water, oil, grease, solvent, or anything gets on the sensor. (2) How to take care the ultrasonic sensor Use air-blower or something similar to get rid of any debris, and use soft and dry cloth on the sensor gently.

  • Page 48: Specifications

    11. Specifications Item Specification Ultrasonic sensor Center frequency: 40kHz Detect performance Pressure 70kPa / Able to detect leak from 0.2mm hole from 7-meter in distance. ※1 Detect area Horizontally approx. 62° / Vertically approx. 35° Display 4.3 inch display / 800×480 pixels Display contents Photo image, sound pressure peak value, and sound pressure map Display refreshment freq.
  • Page 49 Optional accessories list Oscillator MP-161-S001 Neck strap MK-9908 Carrying case MK-9705 Waist bag MK-9706...

  • Page 50: Precautions For Disposal

    12. Precautions for disposal (1) Please follow your local law and regulations when disposing the instrument. (2) Please recycle the lithium-ion battery.
  • Page 51 Head Office/ Plant 3-48 Takahata-cho, Nishinomiya, Hyogo 663-8202, Japan Tel: +81-798-66-1508 Fax: +81-798-65-7025 e-mail: honsha@jfe-advantech.co.jp Tokyo Sales Office JFE Kuramae-Bldg. 2F, 2-17-4 Kuramae, Taito-ku, Tokyo 111-0051, Japan Tel: +81-3-5825-5577 Fax: +81-3-5825-5591 e-mail: tokyo@jfe-advantech.co.jp...

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