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Sibata MT-05U Operating Manual

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OPERATION MANUAL
Thank you very much for purchasing our product.
●
This operation manual contains important safety information and product handling instructions.
●
Before use, read through this operation manual to ensure safe and proper use.
●
After reading through this operation manual, keep it in a safe place for future reference.
CODE 090200-081
(for Main Unit)

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  • Page 1 CODE 090200-081 OPERATION MANUAL (for Main Unit) Thank you very much for purchasing our product. ● This operation manual contains important safety information and product handling instructions. ● Before use, read through this operation manual to ensure safe and proper use. ●...

  • Page 2: Table Of Contents

    Table of Contents 1 Before use ......................... 3 1-1 About the operation manual ....................3 1-2 About the package contents ....................3 1-3 Limited warranty ......................... 4 2 Important safety information ................... 5 2-1 User (Important)........................5 2-2 Graphical symbols ......................5 2-3 Caution labels ........................

  • Page 3: Before Use

    Copyright © 2021 Sibata Scientific Technology Ltd. All rights reserved. This document is copyrighted by Sibata Scientific Technology Ltd. The information contained herein shall not be copied, reproduced, or changed wholly or in part without prior written permission from Sibata Scientific Technology Ltd.

  • Page 4: Limited Warranty

    Limited warranty Please be aware that measurements provided by this product are just an assessment of respirator fit during a Fit Test. Respirator fit on other occasions may be different. The fit factor value is not intended for use in calculating an individual exposure to actual hazardous substances. Therefore, please understand that we will not be liable for any loss or damage if it is used for purposes other than the said assessment.

  • Page 5: Important Safety Information

    2 Important safety information This operation manual contains warnings and cautions intended to ensure the safe and proper use of this product and prevent any bodily harm or property damage to the user or any other person. These are all important safety instructions. Before use, carefully read, fully understand, and strictly comply with these instructions.
  • Page 6 • Strictly adhere to the usage temperature range (5 to 40°C). Failure to comply may cause malfunction or accident. • Do not use any AC adapter that was not included with this product. • Use only with a single-phase 100 to 240 ±10％ VAC power supply. Do not plug into a power strip. Failure to comply may cause electric shock or fire.

  • Page 7: Caution Labels

    • Some materials used in this product (including accessories and options) may cause allergic reactions. If you have any allergies, be sure to check that you are not allergic to any of the materials (see p.60). Avoid using the product if you are allergic to any of the materials. •...

  • Page 8: About This Product

    3 About this product Overview This product is a measuring instrument used to check the fit of a dust mask (disposable or replaceable) in use and can be used for measurements in general rooms. Each human face differs in shape. There are, however, a wide variety of dust masks (hereinafter referred to as “masks”) available from various mask manufacturers.

  • Page 9: Principle Of Measurement

    • Particle counter system adopted for detection • Automatic in-room (ambient) and in-mask air sampling and switching between them • Capable of determining the degree of inward leakage into the mask based on the comparison between the in-mask and ambient particle counts •...
  • Page 10  Quantifying the fit of a mask The fit of a mask to the face of the mask user is quantified as follows: If there is a gap wide enough to allow particles to pass through between the mask and the face of the mask user, ambient particles will leak into the mask during inhalation depending on the gap size.
  • Page 11  Block diagram Outside inlet Mask side inlet Exhaust Touch panel Heater RS-232C output Control circuit Flowmeter Solenoid valve START button Particle counter Needle Filter valve Pump  Purging This product takes into account the time (purge time) required to replace (i.e., purge) the air remaining in the detector module with the analyte air at the start of measurement and during the transition from ambient measurement to in-mask measurement.

  • Page 12: Measurement Modes

    Measurement modes This product features the following four different measurement modes: Measurement mode Description page Perform measurement according to a Fit Test mode preprogrammed procedure (protocol) and automatically calculate and display the Fit Factor. Use this mode when selecting masks for individual persons or when giving practice in wearing a mask.

  • Page 13: Precautions

    Precautions  Handling precautions This product is a measuring instrument equipped with, among other things, a detector module and a computational module built in. Carefully avoid exposing this product to any impact or vibration when moving or handling it.  Opening and closing the mirror When opening or closing the mirror, support the main body with one hand.
  • Page 14  Face contact There are some parts, such as the Test Guide (optional), Tube Joint, etc., that touch or may touch your face. If you have any allergies, be sure to check that you are not allergic to any of the materials (see p.60). Avoid using the product if you are allergic to any of the materials.

  • Page 15: Names Of Parts And Components

    Names of parts and components Mirror Color LCD touch panel Support the main body (pressure-sensitive type) with one hand when opening or closing the mirror. Suction ports (with caps) “POWER” “MASK”: white switch “OUTSIDE”: green “START” button Handle Dryer Speaker Rotameter (center) Power connector...

  • Page 16: Set-Up

    Make sure that the power plug is connected to the AC outlet. Then turn ON the [POWER] switch. The startup screen (Sibata logo) will be displayed first, followed by the version information screen (product logo). Touch the center area of the screen or wait for a while until the screen automatically switches over to the Main Menu screen.

  • Page 17: Main Menu Screen

    Main Menu screen Touch [Fit Test], [Daily Check], [Fit Check], or [Training] to perform measurement in the corresponding mode. Touch [Settings] to make necessary settings. A calibration due date (if any) will appear on the screen.  PC remote icon When communication with the PC software starts, this product serial number and the following icon will appear at the bottom of the screen (subarea), disabling touch panel operation and [START] button operation.

  • Page 18: Getting Ready For Measurement

    Getting ready for measurement Connecting the sampling tubes 4-4-1 Remove the caps from the suction ports on the front side of the main unit (see p. 15) and connect the transparent tube to the white-ringed MASK port and the green tube to the green-ringed OUTSIDE port.
  • Page 19  Attaching/connecting the Tube Joint and wearing the mask Carefully avoid stabbing the tip of the Tube Joint Attachment Tool into the hand or fingers. Do not point the Tool at anyone. (1) Insert the Tube Joint into the male end of the Tube Joint supplied Tube Joint Attachment Tool.

  • Page 20: Checking And Adjusting The Flow Rate And Checking The Concentration Of Particles In Ambient Air

    Checking and adjusting the flow rate and checking the concentration 4-4-3 of particles in ambient air With everything connected together, from the Tube Joint (or Test Guides when using them) to the sampling tubes, check and adjust the flow rate (with or without the mask worn on the face). You can also check the concentration of particles in ambient air.

  • Page 21: Measurement

    5 Measurement Standard values are factory-set for all the four measurement modes before shipment. When required to make any change to the settings, proceed according to “6 Settings.” Measurement screen configuration The figure below shows the basic screen configuration common to all measurement modes. Title area Field Title bar...
  • Page 22 Title area The current measurement mode and the current date and time appear here. Title bar The instantaneous measurement value (count) appears here. Field The measurement status appears here. Number of The number of saved measurement data is shown as “remaining number of remaining data savable data/max.
  • Page 23 [OK] Touch this button to close the dialog box and start measurement. If the saving method is set to “Overwrite,” the oldest data will be deleted to save the new data. If “One time” is selected, measurement can be performed but without saving measurement data (see p.

  • Page 24: Code No. Input

    Code No. Input 5-1-1 The Fit Test and Fit Check modes allow the user to set a 4-digit code number that identifies the corresponding measurement result log data. To assign a code number to a measurement result, set “Code No. input” to “ON” on each setting screen (see p.

  • Page 25: Fit Test Mode

    Fit Test mode Touch [Fit Test] on the Main Menu screen. If no Daily Check has been performed after turning ON the [POWER] switch, the following dialog box will appear and ask the user whether to perform the Daily Check: “Mode Select”...
  • Page 26 The Fit Test mode allows the user to perform measurement according to a preprogrammed protocol so that the Fit Factor will be automatically determined. Use this mode when selecting masks for individual persons or when giving practice in wearing a mask. This product comes with the JIS, OSHA, and other protocols preprogrammed.
  • Page 27 Progress bar Exercise Remaining time name Step Nos. Instruction (1) Instruction (2) First, an ambient measurement is taken followed by an in-mask measurement. This sequence of actions will be repeated the same number of times as the number of set exercise steps. Only when “Outside sample times”...
  • Page 28 Touch [Stop] and the Abort Measurement dialog box will appear. (The current measurement will continue even if the [START] button is pressed.) While this dialog box is displayed, the current measurement will continue. When the current step ends, the measurement will be paused. [OK] Touch this button to abort the measurement and return to “Waiting.”...
  • Page 29 Touch the List key and the List of Fit Test results will appear. Close key Numerical measurement result NG mark If a step is set for exclusion from averaging or is left unset, a hyphen "-," instead of a numerical value, will appear as the measurement result of the step (see p.
  • Page 30 In the Fit Test mode, if an attempt is made to proceed to the next measurement or the Main Menu screen with the measurement results displayed, the following dialog box will appear and ask the user whether to delete the measurement results from the screen: Touch this button to delete the measurement results from the screen and [OK] proceed to the next screen.

  • Page 31: Daily Check Mode

    Daily Check mode Touch [Daily Check] on the Main Menu screen. In the Daily Check mode, check this product for normal operation before starting a Fit Test. Perform Daily Check for each Mode Select setting. If an attempt is made to start a Fit Test without performing the Daily Check, a dialog box will appear and guide the user to the Daily Check mode.
  • Page 32 Remaining time Progress bar NG mark Remaining time Numerically indicates the total remaining measurement time. Indicates by color the progress of the current step. The current step ends Progress bar when the color of the bar is completely changed. NG mark Appears next to a measurement result lower than the reference value.

  • Page 33: Fit Check Mode

    Fit Check mode Touch [Fit Check] on the Main Menu screen. In the Fit Check mode, perform a single measurement for Leakage Percentage. When checking the fit of the mask used in an actual work site, select this mode for use with the Test Guides (optional accessories).
  • Page 34 First, take an ambient measurement and then an in-mask measurement for the same length of time. The results of the last measurement appear here. Data area ● Note that these are not real-time measurement results. At the start of the Fit Check mode or when returning from a setting screen, “--- -”...

  • Page 35: Training Mode

    Training mode Touch [Training] on the Main Menu screen. The Training mode provides a simple real-time measuring method for Leakage Percentage. Use this mode to do a mask fit check while sliding the mask. In this mode, the pump runs continuously. Hence, use this mode to check the pump flow rate (see p.
  • Page 36 Indicator bar First, take an ambient measurement and then a continuous in-mask measurement to compare the ambient value with the latest in-mask value. When the set ‘Outside sample cycle’ time is exceeded, start again from ambient measurement for an update. Repeat the same for the subsequent cycles. To update the ambient measurement at a desired point, press the [START] button.

  • Page 37: Settings

    6 Settings Setting menu Touch [Settings] on the Main Menu screen or [Set. Menu] in the subarea on each setting screen and the following screen will appear: Touch the key corresponding to the settings to be made. Touch [Main Menu] to return to the Main Menu screen.

  • Page 38: Basic Workflow Of Making Settings

    Basic workflow of making settings This section guides the user through the basic workflow of making settings. The following figure shows the basic configuration of a setting screen: Title area Setting box Field Reset key Subarea Title area The current setting screen title and the current date and time appear here. Field Individual settings appear here.
  • Page 39 When required to enter a numerical value, a numeric keypad will appear. Close key Set value name (setting range) Clear key Delete key Enter key The name of the currently set numerical value and its setting range appear Set value name here.
  • Page 40 Touch the Reset key and the reset dialog box will appear. As for the Fit Test settings, only the currently selected protocol, not the overall Fit Test settings, will be reset (see p. 42). [OK] Touch this button to reset the settings to factory defaults. This does not apply to the Fit Test settings;...
  • Page 41 When returning to the previous measurement mode or proceeding to the Main Menu screen from the temporary setting mode with [Save] and [Cancel] on the screen, a dialog box will appear and ask the user whether to cancel the temporary settings. Touch this button to cancel the temporary settings and proceed to the next screen.

  • Page 42: Fit Test Settings

    Fit Test settings There are two setting pages for the Fit Test mode (see p. 25). Save settings page by page. When a reset operation is performed on whichever page, only the currently selected protocol will be reset on both pages simultaneously. The Setting 1 page is used to select a protocol and make basic settings for it.
  • Page 43 Since Fit Test performs measurements in the mode in which Daily Check was performed, Mode Select setting is not available in the Fit Test Settings. If you wish to change the mode for Fit Test, set Mode Select in Daily Check Settings, perform Daily Check again, and then perform Fit Test.
  • Page 44 The Setting 2 page is used to make settings for the steps for the protocol selected on the Setting 1 page. Protocol Measurement time Total measurement time setting box Step No. (excl. setting) Exercise setting box The protocol selected on the Setting 1 page appears here. It will be marked with Protocol “”...

  • Page 45: Fit Check Settings

    Fit Check settings Make settings for the Fit Check mode (see p. 33). Set the mode for measurement. “Mode Select” “Code No. input” Enable/disable Code No. Input (see p. 24). Set the reference particle count for displaying the error message (see p. 23) “Min.

  • Page 46: Daily Check Settings

    Daily Check settings Make settings for the Daily Check mode (see p. 31). Set the mode for measurement. “Mode Select” Set the count for the lower limit for “Min. particle check.” “Min. particle check” This setting also provides the reference particle count for displaying the error message (see p.

  • Page 47: Training Settings

    Training settings Make settings for the Training mode (see p. 35). “Display range” Set the maximum value for the indicator bar. The current concentration of particles in ambient air (instantaneous “Concentration” ambient measurement value (count)) is measured when it is set to “ON”.

  • Page 48: Date And Time Settings

    Date and time settings Make date and time settings. When [Save] is touched to save invalid temporary date and time settings (e.g., February 31…), the following dialog box will appear and prompt the user to change the settings to a valid time and date:...

  • Page 49: Basic Settings

    Basic settings Make the basic settings for this product. “Heater setting Set the heater temperature for preventing condensation. When no heating is required, set the temperature to ‘0.0’°C. temp.” “Heater current The current heater temperature appears here. temp.” Set the volume of the beep (short electronic sound) that occurs at a touch “Beep vol.”...
  • Page 50 “Ext. output” Set the output for an optional external output device (see p. 60). The external output state and signal may vary depending on the settings made here, and the measurement mode to be used (see p. 52 for more details). “OFF”: Select this setting when no external output device is used.

  • Page 51: Log Data

    Log data Use this screen to manage the measurement data saving method and saved measurement data. Select the measurement data saving method when the “remaining “Log data overwrite” number of savable data” reached ‘0.’ “Overwrite”: Select this setting to delete the oldest data and save the new data.

  • Page 52: External Output

    7 External output We offer a printer as optional external output devices for use with this product (see p. 60). When using either of these devices, connect it to the “RS232C” external output connector on the back of the main unit (see p.
  • Page 53 When the Fit Check mode screen is displayed, the title and set values are written out. CR(0xD) LF(0xA) ← Newline MASK FITTING TESTER MODEL MT-05 V.X.XX ← Title text (40 characters) SIBATA SCIENTIFIC TECHNOLOGY LTD. ← (33 characters) CR(0xD) LF(0xA) ← Newline Judgment: Leak=XX.XX% (zero-suppression) ←...
  • Page 54 In the Fit Test mode, measurement results are printed out at the end of each step until the overall result (average) is printed out at the end. Only when “Outside sample times” is set to “Twice in Fit test”, all measurement results will be printed out at the end of the final measurement step (see p.

  • Page 55: Maintenance

    8 Maintenance Inspection  Power cable Before use, check the power cable for any damage. The use of a damaged power cable may cause electric shock or leakage. If any damage is found in the power cable, replace it with a new power cable or contact us for repair.

  • Page 56: Cleaning And Storage

    Cleaning and storage  Main unit Gently wipe the main unit clean of dirt or any other foreign matter with a soft, damp, wrung cloth. If heavily soiled, wipe gently with a cloth slightly dampened with neutral detergent or ethanol. ●...

  • Page 57: Backup Battery Replacement

    Backup battery replacement If the date and time settings are not retained when turning the [POWER] switch ON, the backup battery may be dead. Although this does not prevent measurement, replace the battery.  Compatible battery Panasonic coin-type lithium battery CR2032 ●...

  • Page 58: Troubleshooting

    9 Troubleshooting If anything unusual occurs while using this product, immediately stop its use. If the cause of the problem is a hardware failure, do not attempt to use the product again. Contact us for repair. In some cases, the problem may be due to a cause other than a hardware failure. Before contacting us for repair, check out the following points: Symptom Cause...

  • Page 59: Main Specifications

    10 Main specifications Item code 090200-081 Model MT-05U Intended Mask-to-face fit evaluation measurement Measurement items Particle count, Leakage Percentage, and Fit Factor Particle count concentration measurement by laser beam scattering Principle of (determination of dust particle count ratio between indoor air and in-mask...
  • Page 60  Consumables and spare parts Item code Item name 080200-08211 Tube Joint Set Type M 100 pairs/set 080200-0831 Tube Joint Attachment Tool Type M 080200-084 Sampling Tube (pair tube) 1.5 m x 5 080200-033 High-Performance Zero Check Filter for Fit Tester MT Series ...

  • Page 61: Warranty, Repair, Etc

    11 Warranty, repair, etc.  Warranty period The warranty period is one year from the date of purchase.  Repair within the warranty period In the case of repair within the warranty period, contact your dealer or us for consultation. This warranty does not cover the following: ●...
  • Page 62 Note: The design, dimensions, and specifications may be subject to change for improvement, provided that the functions and purpose of the product are not affected.

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