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USER GUIDE
VERSION 3.0
SOFTWARE VERSION (707074) 40.07
1

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Summary of Contents for LANDTEC SEM5000

  • Page 1 USER GUIDE VERSION 3.0 SOFTWARE VERSION (707074) 40.07...
  • Page 2: Table Of Contents

    INDEX GENERAL DESCRIPTION ............................ 3 USER INTERFACE ..............................4 ................................4 VERVIEW ..............................4 ONNECTIONS ................................5 ISPLAY ) ..........................6 AVIGATION SYSTEM MENU INSTRUMENT FUNCTION ........................... 7 3.1.1 Switch ON ..............................7 3.1.2 Switch OFF ..............................7 START WORK ................................. 8 GPS .................................
  • Page 3: General Description

    1 GENERAL DESCRIPTION The SEM5000 is a digital gas detection instrument from QED Environmental Systems, Inc. The intended use of the SEM5000 is the measurement of low concentrations of methane in the field (Landfill surface emissions monitoring, leakage surveys of natural gas networks, control pinpointing outside buildings, quantifying methane fluxes, and laboratory applications for gas analysis).
  • Page 4: User Interface

    2 USER INTERFACE 2.1 Overview Description ON/OFF button + Backlight Function button Buzzer Selector Dial LED Alarm Lights and Impact Bumpers Strap Connectors 2.2 Connections Description Gas Sample Inlet GPS Antenna Connector Battery Charge Connector...
  • Page 5: Display

    2.3 Display [A1] [A2] [E1] [E2] [F1] SECTOR DESCRIPTION Save Location [A1] Pump Status [A2] Tests Icons Alarm Status GPS Status Battery Status Measurement of Methane [E1] Type of view: ABS (absolute) [E2] Scale of Measurement: PPM (parts per million) – % VOL (volume) Bluetooth [F1]...
  • Page 6: Navigation System (Menu)

    2.4 Navigation System (menu) Push the green selector dial and the menu will appear in the display window [E]. Use the selector dial to scroll through the available menu options. Once you have identified your desired option, push the selector dial to confirm your selection.
  • Page 7: Instrument Function

    LED lights will blink and the alarm will sound. The SEM5000 is now ready to operate. 3.1.2 Switch OFF To switch off the instrument, press and hold the ON/OFF button [1] for a few seconds. A shut off message will appear on the display and will count down to shut off.
  • Page 8: Start Work

    Initially, only the percent symbol, (%), will be displayed. Once the GPS has stabilized and the SEM5000 begins saving data, a number will appear next to the percent symbol to indicate what percentage of the memory has been used.
  • Page 9: Test Execution

    7. UP WIND 8. DOWN WIND Attention: GPS must be active to perform the tests! Attention: Do not switch OFF the SEM5000 during the tests! 4.2.1 AIR Test After beginning the test sequence, the icons in the upper left hand corner, [A] will change status. The pump stops and test instructions will appear on the display [I].
  • Page 10: Gas Test

    Connect the tube from the air cylinder to the SEM5000 inlet, [1]. Press the “Function” button [2] to start the test “AIR - 1”. TEST STARTED will appear on the display and the pump will start. Press the “Function” button [2] to stop the test after you have reached a stabilized reading.
  • Page 11: Up Wind Test

    4.2.3 UP WIND Test When the last GAS test is finished, the icon for the UP WIND test will appear and the pump will stop. Note - You don’t require any gas/air cylinder for this test. Move to your up wind position. Press the “Function”...
  • Page 12: Saving Location

    4.3 Saving Location If the GPS is ON and the icon is displayed, push the Function button [2], it will save the location. A message will appear on the display in section [I]. 4.4 Delete Data To delete the data stored in the instrument, press the Selector Dial and rotate it until the menu displays DELETE MEMORY.
  • Page 13: Restarting The Pump Operation

    If you want to turn the pump off manually, press the jog dial and scroll to the menu option "ON / OFF Pump" and press the dial again. Once pressed, the “Pump” icon will be displayed with an “X”. Attention: this menu is avaiable only when the GPS is ON and the “Save location”...
  • Page 14: Setting Function

    5.1.1 Methane Measurement The measurement results are shown on the display [E]. The SEM5000 is able to measure the methane selectively, eliminating potential for cross-gas effects, in a range 0-100% VOL. In the range 0-1000 the scale displayed is PPM [E2], more than 1% the displayed scale is %VOL.
  • Page 15: Backlight - Display Illumination

    Bluetooth is always active and appears with an icon on the display. 5.6 Recharging the Battery Pack The SEM5000 is supplied only with its specific rechargeable battery pack. The typical autonomy of the device in operation is 10 hours at ambient temperature and with the backlight ON.
  • Page 16: Maintenance

    6 MAINTENANCE 6.1 Replacing the Battery Pack Allen Key 3mm Battery pack Unscrew the four screws The picture shows the battery pack outside from its compartment. Warning: Replace the battery pack only in a safe place.
  • Page 17: Replacing The Hydrophobic Filter

    6.2 Replacing the Hydrophobic Filter Unlock the filter counterclockwise and remove it. Change the filter and reassemble clockwise 7 CALIBRATION Except a situation of damage or default, it is recommended that your unit ben sent to QED annually for inspection and calibration. The hydrophobic internal filter should be checked periodically, (recommended weekly during periods of heavy use).
  • Page 18: Alarms And Error Information

    Swap battery with fully charged spare and continue with your scan. Display shows: COMM Communication has Turn off and restart SEM5000. If the error persists, FROM LASER failed contact the service. Display shows: LASER SENSOR Communication has Turn off and restart SEM5000. If the error persists,...
  • Page 19: Warranty

    8 WARRANTY This instrument is guaranteed, to the original end user purchaser, against defect in materials and workmanship for a period of 3 years from the date of the shipment to the user. During this period QED will repair or replace defective parts on an exchange basis.
  • Page 20: Appendix A - Safe Use Of The Instrument

    DO not use the instrument SEM5000 in a classified area. 9.1 Laser Radiation The instrument SEM5000 contains an invisible laser source. The instrument is classified Class 3 according European standards. Do not open the device 9.2 Other Precautions for Usage...
  • Page 21: Appendix B - Table Of Characteristics

    10 APPENDIX B – TABLE OF CHARACTERISTICS Target gas Methane Measurement ranges 1-10000ppm 0.1% - 100% v/v (option) Sensitivity 1ppm Threshold of sensitivity 0.3ppm Accuracy +/-0.7ppm for [1 ; 10ppm] +/-10% relative up to 10000 Response time T90 = 2.5 seconds T90 = 3.5 seconds with probe Environmental working...
  • Page 22 Contacts: QED ENVIRONMENTAL SYSTEMS, INC. 2355 BISHOP CIRCLE WEST DEXTER, MI. 48130 (800) 624-2026 Web site: http://www.landtecna.com...

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