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S.E.A. Group SE-RDA User Instructions

Respiratory data analyser
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SE-RDA User Instructions 100507-03 B

Respiratory data analyser SE-RDA

User instructions

100507-03 B
1
Copyright © 2021 The S.E.A. Group

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Summary of Contents for S.E.A. Group SE-RDA

  • Page 1: Respiratory Data Analyser Se-Rda

    SE-RDA User Instructions 100507-03 B Respiratory data analyser SE-RDA User instructions 100507-03 B Copyright © 2021 The S.E.A. Group...

  • Page 2: Table Of Contents

    SR100 half-mask and SR200 full-face respirators. Principle of operation The SE-RDA unit is connected to a respirator via the SR100/200 adapter fitted in place of one of the respirator’s exhalation valves. The SE-RDA unit measures and records pressure in the breathing zone of the respirator via the pressure tube. Pressure data is then downloaded to a computer.

  • Page 3: Unpacking

    2. SR100/200 adapter with pressure tube 3. USB data cable 4. Sanitising face-wipe 5. Three AAA batteries (nonrechargeable) 6. USB flash drive containing installation files for SE-RDA PC software for use on Windows PCs 7. Spare vent port filter 8. Screwdriver for battery cover fastener 9.

  • Page 4: Components

    Components SE-RDA unit The SE-RDA unit is a small, portable, battery-powered data logging device. It may be hand-held, pocket-mounted or belt-mounted. It is resistant to dust and water and is suitable for use in industrial environments. The unit will run for at least ten hours on fresh batteries.
  • Page 5 SR100/200 adapter with pressure tube The SE-RDA is supplied with an adapter which is suitable only for Sundström SR100 and SR200 respirators. The adapter connects the breathing zone of the respirator to the MASK port on the SE-RDA unit.

  • Page 6: Operation Functions

    1. Fit or replace the batteries. 2. Check that the vent port filter is fitted to the VENT port of the SE-RDA unit, and that it is clean and dry. Fit or replace the vent port filter as necessary. If the unit has been decontaminated, the vent port filter must be replaced before use as it may have become clogged during decontamination.
  • Page 7 5. Refit the battery cover and fasten the screw. Tighten screw firmly, taking care not to overtighten. Note: Do not leave batteries in the SE-RDA unit for extended periods as they may leak and cause permanent damage to the unit.
  • Page 8 5. Remove the exhalation valve cover from the adapter and check that the exhalation valve disc is in place and properly seated. This is essential to ensure safe operation of the respirator while the SE-RDA is fitted. Refit the cover. 6. (SR200 only) Reattach the head harness and neck strap.
  • Page 9 SE-RDA User Instructions 100507-03 B To detach the SR100/200 adapter 1. Follow the reverse of the procedure described above. Warning It is essential to ensure the respirator’s exhalation valve is refitted correctly. Failure to correctly fit the exhalation valve will result in reduced or no breathing protection!

  • Page 10: Operation Of The Se-Rda

    Operation of the SE-RDA 1. Set the SE-RDA to STANDBY. 2. Set the SE-RDA to RECORD. Wait until the steady RED LED changes to blinking RED (about 50 sec). Do not disturb the unit during this warm-up period. 3. Don the respirator and SE-RDA.
  • Page 11 SE-RDA User Instructions 100507-03 B SE-RDA operation sequence Copyright © 2021 The S.E.A. Group...
  • Page 12 Always ensure that any valuable data has been downloaded before starting recording. Note: Do not turn off the SE-RDA at any time during the recording process, even while resting or when the respirator is not being worn. If the unit is inadvertently turned off during use, download the logged data before restarting recording to prevent it being overwritten.

  • Page 13: Decontamination And Cleaning

    Pocket mounted Waist-belt mounted Download the data Downloading the data is described in the paragraph “To download data from the SE-RDA unit to the PC” on page 23 of this document. Turn the SE-RDA OFF Press and hold RECORD and FUNCTION buttons simultaneously. Hold buttons for about 3 seconds until the LED goes out.

  • Page 14: Packing And Storage

    Remove the batteries from the unit prior to repacking if it may be unused for extended periods, as battery leakage may cause permanent damage to the unit. It is recommended to store the SE-RDA in its carry case in a cool, dry place, away from direct sunlight and sources of vibration.

  • Page 15: Se-Rda Pc Software

    SE-RDA User Instructions 100507-03 B SE-RDA PC software The SE-RDA PC software, when installed on a Windows PC, allows the user to: download log files from the SE-RDA unit, view and save them open and view saved log files view charts of measured pressure for the whole log duration...
  • Page 16 If “Ports” now appears in the list, click to open it. In the example below, a USB to UART bridge port exists, and is configured as port “COM3”. The PC recognises the SE-RDA unit and is ready to communicate with it. Go to the next step: “To install the SE-RDA software (Windows PC only)”...
  • Page 17 SE-RDA User Instructions 100507-03 B c. Right click on it and select Properties. In the example below, it confirms that the driver is not installed. d. Follow the steps below to install the USB driver. The installation executable files for the USB driver are provided on the USB flash drive supplied with the SE-RDA.
  • Page 18 Click “Finish.” With the supplied USB cable connect a USB port on the computer to the USB port on the SE-RDA unit. Open the Device Manager and check that the COM port is present, as described in steps 1 and 2 above.
  • Page 19 SE-RDA User Instructions 100507-03 B To install the SE-RDA software (Windows PC only) The installation files are provided on the USB flash drive supplied with the SE-RDA. 1. Open the root folder on the USB flash drive. 2. For a new installation double-click on the file: PressureLoggerVxxx-Installer.zip...
  • Page 20 SE-RDA User Instructions 100507-03 B 5. Select a new location or click “Next” to accept the default location. The Ready to Install dialog will appear: 6. Click “Next.” The installation will commence: 7. When the installation is complete, click “Finish.”...

  • Page 21: Using The Se-Rda Software

    Using the SE-RDA software Features of the SE-RDA software main window The figure shows the SE-RDA software main window. The various functions are identified and described below. 1. Main graph area – displays the entire pressure log. Displays Pressure (cm H vs Time (hh:mm:ss).
  • Page 22 These values must be entered here manually, and are saved with the data file. 7. COM port – enter the COM port number to allow USB connection to the SE-RDA unit. The port number was obtained during driver installation (paragraph “a” on page 16) 8.
  • Page 23 (paragraph “a” on page 16) in the “COM port” field (“3” in this example). To download data from the SE-RDA unit to the PC With the SE-RDA unit connected to the PC, the software running and the com port number set: 1.
  • Page 24 Downloading may take up to 5 minutes, depending on the amount of data. When downloading is complete the SE-RDA unit will switch itself OFF automatically. The data is now loaded in the SE-RDA software and appears in the main window, but it is not yet saved to disk.
  • Page 25 SE-RDA User Instructions 100507-03 B the exhalation valves (positive pressure); “Aneg” and “Bneg” are for the filter (negative pressure). Overwrite the default values that appear there. Important If the correct parameters are not entered, the software will generate incorrect flow data.
  • Page 26 3. Select a file location, enter a file name and click “save”. Note: The larger the selected data segment, the larger the file size. To open a saved data file in the SE-RDA software 1. Click LOAD (or click File > Open): 2.
  • Page 27 Press/Flow switch). The selected period is at the end of the “warm-up” period (indicated on the SE-RDA unit by a steady red LED). 2. In the example, the steady trace at the left of the graph area sits slightly above zero pressure.
  • Page 28 SE-RDA User Instructions 100507-03 B 2. Edit the value by trial and error until the trace is as close to zero as possible (each time toggling Press/Flow to refresh the display). After completing the offset correction process, save the file.

  • Page 29: Real-Time Graph Mode

    This function is not required for normal testing operations The SE-RDA has a real-time graph mode in which the data is not logged but is output as a stream of real-time data. This allows pressure in the breathing zone to be monitored in real time with the software.
  • Page 30 Telephone: [+61] (0)2 9910 7500 Fax: [+61] (0)2 9979 5364 Email: sea.australia@theseagroup.com Copyright © 2021 The S.E.A. Group under the Berne Convention and the Universal Copyright Convention. All rights reserved. Rev B per CN 1312 Copyright © 2021 The S.E.A. Group...

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