SEM5000
Surface Emissions Monitor
OPERATING MANUAL
QED Environmental Systems, Inc.
2355 Bishop Circle West
Dexter, MI. 48130
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SEM5000.002
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SEM5000 Surface Emissions Monitor
TABLE OF CONTENTS
ATEX WARNINGS .................................................................................................................................................... 4
General Description ............................................................................................................................................... 5
User Interface ......................................................................................................................................................... 6
Overview ............................................................................................................................................................ 6
Connections ........................................................................................................................................................ 7
Display ................................................................................................................................................................ 7
Navigation .......................................................................................................................................................... 8
Using the SEM5000 ................................................................................................................................................ 9
Turning the instrument ON ................................................................................................................................ 9
Turning the instrument OFF ............................................................................................................................ 10
Using GPS ......................................................................................................................................................... 10
GPS Activation .............................................................................................................................................. 10
SEM5000 Set Up ............................................................................................................................................... 11
Field Calibration ............................................................................................................................................... 13
Air Test 1 ...................................................................................................................................................... 14
Gas Test 1 ..................................................................................................................................................... 15
Air Test 2 ...................................................................................................................................................... 16
Gas Test 2 ..................................................................................................................................................... 17
Air Test 3 ...................................................................................................................................................... 18
Gas Test 3 ..................................................................................................................................................... 18
Up Wind Test ................................................................................................................................................ 19
Down Wind Test ........................................................................................................................................... 20
Functions .......................................................................................................................................................... 21
Data Save Options ........................................................................................................................................ 21
Delete Memory ............................................................................................................................................ 22
Concentration Measurement ...................................................................................................................... 22
Alarms ........................................................................................................................................................... 22
Backlight and Contrast ................................................................................................................................. 23
Bluetooth ...................................................................................................................................................... 23
Maintenance ........................................................................................................................................................ 24
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SEM5000 Surface Emissions Monitor
Changing the Battery ....................................................................................................................................... 24
Charging the Battery ........................................................................................................................................ 25
Replacing the Water Trap Filter ....................................................................................................................... 27
Extendable Sample Probe Maintenance ......................................................................................................... 28
Replacing the Dust Filters ............................................................................................................................ 28
Replacing the Sample Tubing ........................................................................................................................... 30
Factory Calibration ........................................................................................................................................... 33
Instrument Specifications .................................................................................................................................... 34
Trouble Shooting .................................................................................................................................................. 36
Pump Error ....................................................................................................................................................... 37
Restarting the Pump ........................................................................................................................................ 37
Replacement Parts ............................................................................................................................................... 38
SEM5000 Warranty .............................................................................................................................................. 39
Appendix A – Safe Use of the Instrument ........................................................................................................... 40
Laser Radiation ................................................................................................................................................. 40
Other Precautions for Usage ........................................................................................................................... 40
Testing and Maintenance ................................................................................................................................ 40
Repair ............................................................................................................................................................... 40
Appendix B – Bluetooth Module Compliance ..................................................................................................... 41
United States .................................................................................................................................................... 41
Canada .............................................................................................................................................................. 41
Europe .............................................................................................................................................................. 42
Appendix C – EU Declaration of Conformity ....................................................................................................... 43
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SEM5000 Surface Emissions Monitor
ATEX WARNINGS
Read the entire SEM5000 User Manual prior to operating the instrument
This warning is issued to ensure proper knowledge of the instrument’s operation.
Replacment of the battery must only be performed in non-hazardous areas
Do not charge the battery in hazardous areas
The charging of the batteries must be performed only in a safe place with the appropriate
external adapter
QED SEM-BC
.
Do not open the instrument
Only authorized personnel can open the instrument for maintenance and repair.
The opening of the instrument by unauthorized personnel will void the product warranty.
Maximum voltage Um < 15V
The maximum voltage that can be applied to the non-intrinsically safe connection facilities of
associated apparatus (battery charger) without invalidating the type of protection is 15 volts.
Antistatic Personal Protection Equipment
The operator shall be equipped with a complete antistatic Personal Protection Equipment
(PPE), in combination with conductive or dissipative ground, and shoes with a resistance
below 108Ω.
Do not connect the SEM5000 instrument, SEM5000 battery or SEM5000 battery charger
to other equipment
These devices are only designed to be used together in order to work properly and guarantee
the safety of the users.
Atex accessories
Use only the following accessories with the instrument SEM5000:
Ø Rechargeable battery pack lithium ion (PBLO.NNNN.YY 3,7V 4000mAh)
Code: 205014
Ø Battery charger (CCLO.NNNNN.YY)
Code: 100189
Ø Power supply (Um<15 volts)
Code: 423007
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SEM5000 Surface Emissions Monitor
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).
The instrument is selective exclusively to methane, thanks to the patented Laser technology
inside. The SEM5000 delivers reliable and accurate measurement of methane concentrations,
even if the sample contains other gases or hydrocarbons. Due to its lightweight design and
modest size, the SEM5000 can be easily transported and is ideal for measuring methane
concentrations in the field, (landfills, site investigations or gas networks). Thanks to its
metrological sensitivity, accuracy, stability and response time, the SEM5000 is the perfect
instrument for the detection and quantification of methane emissions.
The single-dial function selector makes the SEM5000 easy to use and the large, back-lit LCDdisplay provides easy to read menus and results. The SEM5000 has a measuring range covering
0 to 1,000,000 PPM (part per million) or 100% methane concentration. The SEM5000 also
offers a rapid response time, improving the efficiency and saving time. The exceptional
reactivity of the SEM5000 laser technology provides excellent results during field scans for
fugitive traces of methane. The noteworthy combination of high sensitivity and rapid response
deliver outstanding measurement quality. The SEM5000 is provided with integral GPS and
Bluetooth, eliminating the need for additional devices. The internal memory is capable of
storing up to 48 hours of scan data.
The SEM5000 is the perfect, easy-to-use instrument for accurately measuring and recording
methane concentrations during surface emissions monitoring.
The SEM 5000 exists in Atex version and has been certified with the intrinsic safety protection
mode and has obtained the following marking:
II 2 G Ex ib op is IIB T3 Gb -25°C<TA<+50°C
In hazardous environment the user must take care of the following standards EN 1127-1:2011
(Explosive atmospheres- Explosion prevention and protection - Basic concepts and
methodology) and CLC/TR 50404:2003 (“Electrostatics Code of practice for the avoidance of
hazards due to static electricity”).
ATTENTION:
The photos shown in this user manual are indicative.
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USER INTERFACE
Overview
Description
[A]
ON/OFF button + Backlight
[B]
Function button
[C]
Buzzer
[D]
Selector Dial
[E]
LED Alarm Lights and Impact Bumpers
[F]
Strap Connectors
A
B
C D E
F
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SEM5000 Surface Emissions Monitor
Connections
Display
Description
[A]
Gas Sample Inlet and
Water Trap Filter
Holder
[B]
Battery Charger/Data
Download Connector
DESCRIPTION
[A]
Pump Status/Save Location/GasTest Indicators
[B]
Audible Alarm Status
[C]
GPS Status
[D]
Battery Charge Status
[E]
Bluetooth (when connected to your PC, icon will change to
[F]
Percentage of Memory Used
[G]
Concentration Level of Sample
[H]
Test Status Indicator/Gas Threshold
[I]
Reading Type (ABS)/Gas Measured (CH4)/Scale of Measurement (PPM or %VOL)
A
B
A B C
D
E G H I F
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SEM5000 Surface Emissions Monitor
Navigation
Push the green selector dial and the menu will appear in the display window.
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.
While the Option menu is active, the concentration value of the gas sample is shown in the
upper right-hand corner of the display. The exceedance threshold is displayed in the lower
right-hand corner of the display.
Select “ESC” to exit the Options menu.
Start Test
– Begin pre- scan span gas test
Stop Test
– Complete pre-scan span gas test
Select Gas 500/200/100
– Choose PPM value of exceedance threshold
ON/OFF Pump
– Start and stop pump
ON/OFF Buzzer
– Enable and disable audible exceedance alarm
ON/OFF GPS
– Enable and disable GPS
ON/OFF Log
– Start and stop auto save for scan data
Sel. Save Interval
– Select auto save interval, (1 second to 10 seconds)
Save Event
– Manually save an additional event during auto save
Delete Memory
– Clear all saved data
LCD Contrast
– Adjust display contrast
Manual Save
– Manually save readings during scan, (disables auto save)
ESC
– Exit Option menu
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SEM5000 Surface Emissions Monitor
USING THE SEM5000
Turning the instrument ON
Press and hold the ON/OFF button for few seconds, until the display is activated.
The start-up sequence includes several steps:
The Landtec Logo is displayed
Information about the version of the instrument firmware, serial number of the instrument,
next recommended calibration date is displayed
NOTE: If there is existing data stored in the instrument’s memory from a previous survey,
the message “DATA TO DOWNLOAD” will appear at the bottom of the screen.
The instrument will warm up. The warm up lasts approximately 20-30 seconds.
NOTE: The instrument’s functions are not available during the warm up period.
Once the warm up and calibration are complete, the four LED lights will blink and the alarm
will sound
A concentration level will be displayed. This is the actual measurement of methane in the
atmosphere. Naturally occurring methane levels in atmosphere are typically 2.5ppm
The SEM5000 is now ready to operate
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SEM5000 Surface Emissions Monitor
Press the Function button to turn off the pump.
An “X” will appear over the pump icon in the upper left corner to indicate that the pump is
off.
Turning the instrument OFF
To switch off the instrument, press and hold the ON/OFF button [A] for a few seconds.
A shut off message will appear on the display and will count down to shut off.
Using GPS
Upon start up, the GPS is not active. It must be activated prior to field calibration.
NOTE: Data is only acquired and saved when the GPS is active
GPS Activation
• Push the Selector dial to display the Option menu
• Use the Selector dial to scroll through options to ”ON/OFF GPS”
• Push the Selector dial to turn on the GPS
• Press the selector dial to confirm the selection. An “X” will appear over the GPS globe
icon at the top of the screen while it attempts to acquire a signal
• Once the signal has been acquired, the “X” over the GPS icon will be replaced by the
letters “GPS” with alternating blue and white dots at the corners of the icon
NOTE: GPS must be activated in order for the instrument to save any scan data
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SEM5000 Surface Emissions Monitor
NOTE: The GPS module is a high-performance receiver with the ability to track up to 20
satellites.
Start up time for the GPS module can vary according to the strength of the actual signal
received.
The presence of high trees or buildings, aerial power lines or other obstructions will affect
the signal. Typically, in an open area, the GPS will fix in 1 to 3 minutes.
In the event of signal loss during the survey, the instrument will continue to log gas values
and will associate the to the last saved tracked GPS position until the signal is reacquired.
SEM5000 Set Up
Once GPS has been activated, survey parameters will need to be set up. Gas Exceedance
levels and data storage preferences must be selected.
•
Push the Selector dial to display the Option menu and scroll to the “Select Gas
500/250/100” option and press the Selector dial to display the gas concentration
menu
•
Scroll to choose 500, 250 or 100 parts per million and push the Selector dial to store
your choice
•
Push the Selector dial and scroll to the “Log” option
•
Press the selector dial again to choose “ON” or “OFF”
Icon
Description
Icon
Description
GPS active but waiting for
signal
GPS off
GPS active
Save location
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SEM5000 Surface Emissions Monitor
NOTE: Once logging has been turned “ON” or “OFF” it will remain in that mode until
changed by the user.
The “Log” function must be turned “ON” in order for the SEM5000 to automatically save
survey readings.
When the “Log” function is not activated, the word “OFF” will appear at the bottom of
the display screen.
When the “Log” function is activated, the percent symbol, (%), will be displayed at the
bottom of the screen. During the survey, this will indicate the percentage of available
memory that has been used.
•
Press the Selector dial and scroll to the “Select Save Interval” option and push the
Selector dial to display time save options
•
Scroll to select auto save time, (1 second to 10 seconds), and press again to confirm
your selection
NOTE: If you do not wish to utilize the Auto Save function, bypass the “Select Save
Interval” option and instead activate the “Manual Save” option.
This option will allow you to use the “Function” button to manually save readings at
desired intervals.
•
The instrument is now ready for field calibration
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SEM5000 Surface Emissions Monitor
Field Calibration
Field calibration consists of three alternating measurements between two calibration gases,
(zero air and methane)
•
Connect demand-flow gas regulator(s) to calibration gas bottles
NOTE: The regulator flow must be a minimum of 0.6L/min to avoid restricting the pump.
The SEM5000 package is provided with one demand-flow regulator with a C10 fitting. It is
recommended that two regulators be used, (one per bottle), for ease of calibration.
•
Push the Selector Dial, scroll to the “Start Test” option and press the Selector dial
again
•
The instrument will guide you through the field calibration procedure with alternating
icons appearing in the upper left corner of the screen to indicate
•
Air
•
Gas250/500
•
Upwind Test
•
Downwind Test
•
The screen will also display instructions to start, stop and track each test
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SEM5000 Surface Emissions Monitor
•
Once you have selected “Start Test”, the screen will display the instructions, “Press F
to start Air 1”
Air Test 1
•
Connect the tubing from the gas regulator for the zero air calibration gas to the
sample inlet of the SEM5000
NOTE: If the tube is not fully inserted into the sample inlet of the SEM5000, the
concentration readings during field calibration may appear to be erratic and difficult to
stabilize.
•
Press the Function, (F) button
•
The pump will start and the display will begin to count down as the zero air is drawn
into the SEM5000
•
Once the reading has stabilized on the display, press the Function, (F) button again to
stop the pump and complete Air Test 1
•
Stabilization will take approximately 20-30 seconds
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SEM5000 Surface Emissions Monitor
•
Once you stop the pump to complete Air Test 1, the screen will display the
instructions, “Press F to start Gas 1”
Gas Test 1
•
Disconnect the zero air tube from the sample inlet of the SEM5000 and connect the
tubing from the gas regulator to the methane calibration gas to the sample inlet of
the SEM5000
•
Press the Function, (F) button
•
The sample concentration display will count up to the highest reading as it samples
the bottled gas
•
The gas test is timed and will continue for twenty seconds. The remaining time is
displayed above the sample concentration level
•
Once the 20 second test time is complete, the message “TEST OK SAVED” will appear
on screen.
•
When “TEST OK SAVED” appears, remove the tube from the sample inlet of the
SEM5000
•
The pump will continue to run for several seconds to clear any residual
methane from the chamber before the next test begins.
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SEM5000 Surface Emissions Monitor
•
After purging for several seconds, the pump will shut off automatically
•
After the pump shuts off, the instructions “Press F to start Air 2” will appear
Air Test 2
•
Connect the tubing from the gas regulator for the zero air calibration gas to the
sample inlet of the SEM5000
•
Press the Function, (F) button
•
The pump will start and the display will begin to count down as the zero air is drawn
into the SEM5000
•
Once the reading has stabilized on the display, (this will take approximately 30
seconds), press the Function button again to stop the pump and complete Air Test 2
•
Once you stop the pump to complete Air Test 2, the screen will display the
instructions, “Press F to start Gas 2”
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SEM5000 Surface Emissions Monitor
Gas Test 2
•
Disconnect the zero air tube from the sample inlet of the SEM5000 and connect the
tubing from the gas regulator to the methane calibration gas to the sample inlet of
the SEM5000
•
Press the Function, (F) button
•
The sample concentration display will count up to the highest reading as it samples
the bottled gas
•
The gas test is timed and will continue for twenty seconds. The remaining time is
displayed above the sample concentration level
•
Once the 20 second test time is complete, the message “TEST OK SAVED” will appear
on screen.
•
When “TEST OK SAVED” appears, remove the tube from the sample inlet of the
SEM5000
•
The pump will continue to run for several seconds to clear any residual
methane from the chamber before the next test begins.
•
After purging for several seconds, the pump will shut off automatically
•
After the pump shuts off, the instructions, “Press F to start Air 3” will appear
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SEM5000 Surface Emissions Monitor
Air Test 3
•
Connect the tubing from the gas regulator for the zero air calibration gas to the
sample inlet of the SEM5000
•
Press the Function, (F) button
•
The pump will start and the display will begin to count down as the zero air is drawn
into the SEM5000
•
Once the reading has stabilized on the display, (this will take approximately 20 to 30
seconds), press the Function button again to stop the pump and complete Air Test 3
•
Once you stop the pump to complete Air Test 3, the screen will display the
instructions, “Press F to start Gas 3”
Gas Test 3
•
Disconnect the zero air tube from the sample inlet of the SEM5000 and connect the
tubing from the gas regulator to the methane calibration gas to the sample inlet of
the SEM5000
•
Press the Function, (F) button
•
The sample concentration display will count up to the highest reading as it samples
the bottled gas
•
The gas test is timed and will continue for twenty seconds. The remaining time is
displayed above the sample concentration level
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SEM5000 Surface Emissions Monitor
•
Once the 20 second test time is complete, the message “TEST OK SAVED” will appear
on screen.
•
When “TEST OK SAVED” appears, remove the tube from the sample inlet of the
SEM5000
•
The pump will continue to run for several seconds to clear any residual
methane from the chamber before the next test begins.
•
After purging for several seconds, the pump will shut off automatically
•
After the pump shuts off, the screen will display the instructions, “Press F to start Up
Wind Test”
Up Wind Test
•
Move to your established “Up Wind” test location and press the Function button, (F)
to start the Up Wind test
•
The Up Wind test is is a timed test and will draw a sample of atmosphere in through
the sample inlet for 30 seconds
•
The time remaining in the Up Wind test will be displayed above the sample
concentration level
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•
Once the test is complete, the pump will automatically shut off and the instruction
“Press F to start Down Wind test” will be displayed
Down Wind Test
•
Move to your established “Down Wind” test location and press the Function, (F)
button to start the Down Wind test
•
The Down Wind test is is a timed test and will draw a sample of atmosphere in
through the sample inlet for 30 seconds
•
The time remaining in the Down Wind test will be displayed above the sample
concentration level
•
Once the test is complete, the pump will automatically shut off and the instruction
“Press F to start SURVEY” will be displayed
•
Field calibration is now complete and the calculated exceedance value is displayed in
the lower right corner
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SEM5000 Surface Emissions Monitor
NOTE: The exceedance value displayed is the average of the three air/gas test and the Up
Wind and Down Wind tests to account for existing background levels. This calculated value
will be the alarm threshold for an exceedance and will be stored in the SEM5000 memory
for the remainder of the day.
If your SEM event will span multiple days, you will need to perform a new field calibration at
the beginning of each day.
If you plan to survey multiple sites on the same day, you will need to perform field
calibration at each site.
•
Connect the extendable sample probe to the sample inlet of the SEM5000, press the
Function button, (F) and begin your survey
Functions
Data Save Options
LOG
– Activates the Auto Save function. When “LOG” is enabled, the SEM5000 will
automatically save readings as you continue your survey. It will stop saving only if the pump is
turned off or when the instrument is shut down.
The SEM5000 is constantly reading the concentration as the sample is drawn in. It in LOG
mode, it automatically saves a reading every second, by default. Auto Save intervals can be
customized with the Sel.Save Interval option.
Sel. Save Interval
– Allows the user to customize the Auto Save intervals. By scrolling with the
Selector Dial, the user can choose save intervals of 1 second to 10 seconds.
Manual Save
– This option allows the user to save readings manually at desired intervals.
When choosing this option, the Auto Save feature is disabled. Using the Selector Dial, the
user will scroll through the options menu and use the “ON/OFF Pump” option to start and
stop the pump during the survey. Once the pump has started, the user will walk the
predetermined scan path. The SEM5000 will be taking samples and displaying concentrations
but will not be automatically saving any data. When the user wishes to save a reading, they
will press the Function button and that specific reading will be saved. In Manual Save mode, a
reading will be saved every time the Function button is pressed.
Save Event
– This feature allows the user to save additional points during Auto Save. If there
is a point of particular interest that the user wants to note or remember, they will use the
Selector Dial to scroll through to the Manual Save option and press the Selector Dial to save
that specific location as an event point.
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Delete Memory
• To delete the data stored in the instrument, press the Selector Dial and rotate it until
the Option menu displays DELETE MEMORY.
• Press the Selector Dial to confirm the selection.
o A second message will appear to verify that you wish to delete the data.
• If you are certain that you wish to proceed, turn the Selector Dial until YES appears on
the screen and press the Selector Dial again.
NOTE: The SEM5000 will store up to 480 hours of scan data before the memory must be
deleted.
Concentration Measurement
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. If more than
1%, or 10,000PPM, the displayed scale is %VOL.
The SEM5000 measures in Absolute Mode, providing an accurate reading of the sample and
ambient methane concentrations. The measurement reading is shown on the display in Parts
Per Million (PPM). Upon start up, the pump will run and measure and display the ambient
CH4 concentrations. Normal levels of CH4 in atmosphere are approximately 2.5 PPM.
The SEM5000 is designed to alarm at exceedance levels of 100ppm, 250ppm and 500ppm.
The user must establish the desired exceedance threshold level prior to daily field calibration,
(see “SEM5000 Set Up”).
Alarms
The SEM5000 features an audible acoustic alarm and flashing LED alarm lights.
The acoustic alarm sounds and the LED flashes, when the instrument is switched ON and
when the measured gas has exceeded the alarm threshold.
The acoustic alarm can be enabled or disabled by using the Selector Dial and Options menu.
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SEM5000 Surface Emissions Monitor
When the alarm is turned off, the alarm icon appears crossed on the display. When the
measured gas concentration exceeds the alarm threshold the LED flashes, even when the
acoustic alarm is disabled. As a safety precaution, the LED alarm lights cannot be disabled.
Backlight and Contrast
To change the display illumination, push the “Start” button until you reach the desired
illumination. The display has 4 levels of illumination.
To adjust the contrast of the display, press the Selector Dial and scroll through the Options
menu until “LCD contrast” appears. Rotate the Selector Dial to increase or decrease the
amount of contrast, (from 10% to 100%).
Press the Selector Dial to confirm the selection.
Bluetooth
Bluetooth is always active and the icon appears in the lower, left-hand corner of the display.
Note: For further information please contact Technical Support at QED at (800) 968-2026 or
email landtec_support@qedenv.com.
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MAINTENANCE
Changing the Battery
Replace the battery only in non-hazardous locations.
3MM Allen Key
Battery Pack
Remove all four screws
Remove discharged battery
Replace with fully charged battery
and tighten screws
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Charging the Battery
The SEM5000 is supplied with rechargeable battery pack (PBLO.NNNN.YY 3,7V 4Ah Code
205014). The battery can only be charged using the approved CCLO charger (code 201006)
and power supply cord (Code423007), supplied with the unit.
To c h ar ge t h e b at te r y:
• Remove it from the SEM5000, (see “Changing the Battery”)
• Plug the 9-pin connector into the battery’s Battery Charger/Data Download connector
• Plug the power supply cord into the center power port of the charger
• Plug the other end into a standard electrical outlet.
• It is recommended to connect the charger with the power supply according the figure
below, using the two polarity connector in conformity with the maximum authorized
voltage Um equal to 15V
• The charger’s indicator light will glow red when the instrument is charging and will
turn green to indicate that the charge is complete
The duration of the complete charge cycle is typically 4 hours 30 min.
The typical autonomy of the device in operation is 10 hours at ambient temperature and with
the backlight ON.
Many factors, such as ambient temperature, activation of the backlight or the alarms can
affect this duration.
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The battery is Lithium ion technology. This battery pack is not restricted according the
European and international regulations of dangerous goods. Therefore, the device can be
transported by plane following the requirements of the labelling of the package.
The charge level of the battery is shown with a battery icon in the upper, right-hand corner of
the screen. It displays three levels of charge. The last level corresponds to the last 30 minutes
of operation at 20°C.
NOTE: The SEM5000 battery charger can also be used to connect the instrument directly to
your PC for data download if Bluetooth is not available on your computer.
Leave the battery connected to the SEM5000
Plug the 9-pin connector into the battery’s battery charger/download connector
Plug the provided USB cable into the “USB 2” port on the battery charger and connect the
other end to your PC
Do Not Charge batteries in temperatures below zero degrees C.
Do not charge batteries in hazardous areas
Do not charge battery when connected to SEM5000
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Replacing the Water Trap Filter
NOTE: The water trap filter should be checked and changed periodically. It is recommended
that it be changed prior to each SEM event. At a minimum, it should be checked quarterly
and is recommended to be checked weekly during periods of heavy use.
Remove filter holder by turning
counter clockwise
Replace water trap filter
Replace filter holder and turn
clockwise to lock in place
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Extendable Sample Probe Maintenance
Replacing the Dust Filters
The SEM5000 extendable sample probe has two dust filters. The first is a sintered bronze
dust filter for course particles and is located inside the windscreen and the end of the wand.
The second is a cellulose fiber filter for fine dust particles and is located behind the
windscreen.
Both of these filters should be replaced periodically. It is recommended that, at a minimum,
they be changed at the beginning of each SEM event. You may need to change them more
often, depending on individual site conditions.
To change the bronze dust filter:
Using a 13mm socket, unscrew the bronze dust filter and
remove it from its position inside the windscreen
Discard the old filter and replace it with a new filter
Tighten the filter with your fingers and, if necessary, use
the 13mm socket for final tighten
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To change the cellulose dust filter:
Unscrew and remove windscreen from the end of the
sample probe
Once the windscreen has been removed, remove and
discard the cellulose filter from the filter holder at the
end of the wand
Replace the discarded filter with a new cellulose filter
Replace and hand-tighten the windscreen
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Replacing the Sample Tubing
The SEM5000 exdentable sample probe contains a 5-foot section of tubing that directs the
sample into the instrument. Should the tube become kinked or break, it must be replaced to
avoid restricting the pump or causing errors in the concentration readings.
To replace the tubing:
Unscrew and remove the windscreen from the end of
the sample probe
Remove the cellulose dust filter from the end of the
filter holder
Unscrew and remove the nut at the top of the filter
holder and remove the filter holder from the end of the
sample probe
Using a 3mm allen wrench, release the nut inside the
filter holder
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Remove the old tubing from the quick-connect fitting
Remove the old tubing from the handle end of the
sample probe
Feed replacement tubing into the handle end and push
it all the way through the probe
Connect the replacement tubing to the quick-connect
fitting
Hold the tube, unscrew the filter holder and remove the
quick-connect fitting from inside the filter holder
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Use the 3mm allen wrench to provide a final tighten
Replace the cellulose dust filter in the end of the filter
holder
Replace the filter holder on the end of the sample probe
and tighten the nut at the top of the filter holder
Replace and hand-tighten the windscreen
Screw the quick-connect fitting back into the filter
holder and hand-tighten
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Factory Calibration
It is recommended that your SEM5000 be sent to QED biennially, (every two years), for
inspection and calibration.
Your instrument’s recommended calibration due date is shown on the unit’s display screen at
start up.
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INSTRUMENT SPECIFICATIONS
The SEM5000 uses an internal membrane pump. The typical flow is 0.8 l/m. The minimum
flow is 0.6 l/m. The maximum flow is 1 l/m.
The use of accessories, such as the probe, can slightly reduce this flow. It is advised to only
use the parts and accessories supplied by QED.
The gas sample entrance connector has a size of D2 X D4 mm.
A hydrophobic internal filter protects the device against any entrance of dust or water. It is
strongly advised to use an external dust filter in order to avoid the accumulation of dirt in the
internal filter.
NOTE: The water trap filter is not designed to protect against chemicals.
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
conditions
Humidity : from 5% to 80% relative humidity
Temperature : -25°C to +50°C
In a non-condensing atmosphere
Pressure : Atmospheric pressure 1013mb ±100mb
Power supply
Specific Li ion rechargeable battery pack
3,7V – 4000mA/h
Recharging duration: 4 hours 30 min
The aspiration of water or impurities may cause malfunction of the pneumatic
circuits and in some cases may damage the sensors.
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Autonomy
10 hours at 20°C (with backlight activated)
8 hours at extreme temperatures with backlight activated
Case
Carbon reinforced polyamide with fiberglass
Dimensions: L x w x h = 229 x 97 x 109mm
Weight: 1.3Kg (in operation)
Protection level
IP65
Environmental storage
conditions (excluding
batteries)
Humidity : < 95% relative humidity
Temperature : -40°C to +60°C
Sampling flowrate
0.8 l/min.; [0.6 ; 1l/min.]
User interface
Large Display: matrix of 240x128
Selector Dial: Scroll menu for a rapid and easy selection
3 Keys for a direct activation of the functions
Alarms
Threshold of the methane concentration
Pump stopped
Sound level of the buzzer
(30cm)
85 dB (A)
Indicators of the device
status
Measurement mode
Battery level
Pump
Communication
Electrical connections
Multiplug for battery charger and for a communication with
a computer.
Equipped with a security ring.
Gas connections
Quick-connect gas inlet coupling with locking mechanism:
suction rod on the right side.
Quick-connect gas outlet coupling.
Carrying Straps
Synthetic band, 30mm
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TROUBLE SHOOTING
Problem
Possible Cause
Solution
Acoustic alarm and
flashing of the LED lights
GAS alarm
Concentration measured above the alarm threshold.
The display shows the
message ERROR PUMP,
LED flashing and the icon
is crossed
Pump stopped
The pump has stopped due to ingress of water or a
high quantity of dust. Check/change water and dust
filters.
Flashing of the Battery
icon
Low Battery
Battery charge is low. When icon flashes, the battery
will still provide about 30 minutes of use (at +20°C).
Swap battery with fully charged spare and continue
with your scan.
Display shows: LOW
BATTERY
Dead Battery
The battery charge has been fully depleted. The
SEM5000 will shut itself down.
Swap battery with fully charged spare and continue
with your scan.
Display shows: NO COMM
FROM LASER
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 130
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 135
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 142
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 144
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 150
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Note: For further information please contact Technical Support at QED at (800) 968-2026 or
email landtec_support@qedenv.com.
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Pump Error
The instrument detects when the pump flow is compliant, otherwise the pump stops, the
LEDs light up, the icon of the pump shows a cross and you will see the message "PUMP
ERROR" is displayed.
The instrument detects when the pump flow is restricted or blocked. The pump stops, the
LEDs light up, the icon of the pump shows a cross and you will see the message "PUMP
ERROR" is displayed on the screen.
If this error occurs, turn off the SEM5000, check the water trap filter and probe ends for
potential restrictions. Once you have cleared any restrictions, restart the instrument.
If you want to turn the pump off manually, press the Selector Dial, scroll to the "ON / OFF
Pump" option and press the dial again. Once pressed, the “Pump” icon will be displayed with
an “X”, indicating that the pump is off.
NOTE: This menu is available only when the GPS is activated and the “Save Location” icon is
shown on the display. When the pump is off, the display shows five horizontal lines “-----"
Restarting the Pump
• Press the Function button
• The “X” over the pump icon will disappear and the pump will start again
The field in the upper, left-hand corner of the screen can display two different icons:
When the GPS is off, the “Pump” icon is displayed.
When the GPS is on, the “Save Location” icon is displayed.
Note: For further information please contact Technical Support at QED at (800) 968-2026 or
email landtec_support@qedenv.com.
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REPLACEMENT PARTS
Part Number
Description
SEM-CASE
SEM5000 Carrying Case for Instrument, Telescoping Handle and Expendable Accessories
SEM-SCASE
SEM5000 Soft Carrying Case, (fanny-pack style), for Instrument only
SEM-STRAP
SEM5000 Two-Point Carrying Strap
SEM-PROBE
SEM5000 Telescoping Probe Handle with windscreen. Extends to 4' 3"
SEM-SP
SEM5000 Windscreen for Telescoping Probe
SEM-BATT
SEM5000 Battery Pack
SEM-BC
SEM5000 Battery Charger with USB Download Cable
SEM-CBC
SEM5000 12V Car Charger for Battery
SEM-QC
SEM5000 On-Demand Test Gas Regulator. Male Thread, for use with gas cylinders with
C10 fitting. 0.6L/min flow rate
SEM-TUBE
SEM5000 Tubing for Probe Handle. Priced Per Foot.
SEM-WFK10
SEM5000 Water Trap Filter Kit. Includes: 10 Hydrophobic Filters, 25mm PTFE 45um. For
use in Removable Filter Holder
SEM-DFKB
SEM5000 Dust Filter Kit for extendable sample probe. Includes: 10 Bronze Dust Filters for
Insertion in end of Sample Probe
SEM-DFKC
SEM5000 Dust Filter Kit for extendable sample probe. Includes: 25 Cellulose Dust Filters
for insertion in end of sample probe
SEM-HOLD
SEM5000 Removable Filter Holder for Hydrophobic Filter
CGCH4-500
Calibration gas for SEM. CH4 500ppm / Balance Air, 105L bottle
CGAIR-0
Calibration gas for SEM. Air - Ultra Zero Grade, 105L bottle
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SEM5000 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.
The decision to repair or replace will be determined by QED.
To maintain this warranty, the purchaser must perform maintenance and calibration as
prescribed in the operating manual.
Normal wear and tear, and parts damaged by abuse, misuse, negligence or accidents are
specifically excluded from the warranty.
Note: For further information please contact Technical Support at QED at (800) 968-2026 or
email landtec_support@qedenv.com.
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APPENDIX A – SAFE USE OF THE INSTRUMENT
The information contained in these safety instructions must be followed in addition to the
warnings in the user manual supplied to the customer.
Laser Radiation
The SEM5000 contains an invisible laser source. The instrument is classified Class 1 according
European standards.
Do not open the device
Other Precautions for Usage
The charging of the batteries must be performed in a safe place with the appropriate
external adapter.
The instrument is dedicated to measurements in ambient air or can accept gas mixture
containing non-corrosive chemical products. In case of the presence of gas mixture
except that hydrocarbon and neutral gases, contact QED to verify the compatibility with
the device.
Testing and Maintenance
The checks and maintenance of certified equipment should be performed according to the
criteria of the standard EN60079-17.
Repair
In the event of malfunction or damage is recommended to send the equipment to QED for
repair.
Note: For further information please contact Technical Support at QED at (800) 968-2026 or
email landtec_support@qedenv.com.
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APPENDIX B – BLUETOOTH MODULE COMPLIANCE
The Bluetooth module has a QDID registered with the Bluetooth SIG :
QDID: B014867
United States
The device contains Transmitter Module FCC ID: T9J-RN42. This device complies with Part 15
of the FCC Rules.
Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy, and if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Canada
The device contains transmitter module IC: 6514A-RN42.
This device complies with Industry Canada license exempt RSS standard(s). Operation is subject
to the following two conditions: (1) this device may not cause interference, and (2) this device
must accept any interference, including interference that may cause undesired operation of
the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne
doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement.
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Under Industry Canada regulations, this radio transmitter may only operate using an antenna
of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To
reduce potential radio interference to other users, the antenna type and its gain should be so
chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that
necessary for successful communication.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut
fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour
l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain
de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité
nécessaire à l'établissement d'une communication satisfaisante.
Europe
The Bluetooth module has been tested to R&TTE Directive 1999/5/EC Essential Requirements
for Health and Safety (Article (3.1(a)), Electromagnetic Compatibility (EMC) (Article 3.1(b)), and
Radio (Article 3.2) and are summarized below :
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APPENDIX C – EU DECLARATION OF CONFORMITY
QED Environmental Systems, Inc. declares that the product, SEM5000 ATEX, is in conformity with
the provisions of the following EU directives and that the standards and/or technical
specifications referenced below have been applied:
-With the annex II of the 2014/34/ EU directive from 26 April 2016
- With the EN 60079-0 : 2012 + A11 :2013 - Explosive atmospheres – Part 0: Equipment –
General requirements
- With the EN 60079-11:2012 - Explosive atmospheres - Part 11. Equipment protection by
intrinsic safety « i »
- With the EN 60079-28:2015 - Explosive atmospheres - Part 28. Protection of equipment
and transmission systems using optical radiation.
- With the 2014/53/UE Directive RED (Radio Equipment Directive) of 12th August 2016:
Electromagnetic compatibility ETSI EN 301 489-1; ETSI EN 301 489-17 ; ETSI EN 301 489-19 ;
EN 61326-1 (2012) ; Radio FCC 15.107/109 + ICES 003
- Protection level of the envelop: Degrees of protection provided by enclosures EN 60529 Oct
1992
- Safety of laser products: EN 60825-1:2014 + A1 (IEC)
- Certificate of calibration: according ISO/IEC 17025
- Transport of Lithium ion rechargeable battery; Battery pack non restricted for transport
according to the UN3480 & UN3481 - Recommendations on the transport of dangerous
goods
- With the type of apparatus that have been examined and fully approved by the INERIS
notified body, rue J. Taffanel, 60550 Verneuil en Halatte (France), organization registered
under the number 0080 and for which INERIS has issued a EU-Type examination certificate
under the number:
INERIS 18 ATEX 0029X
.
The manufacturing plant in Bolzano has been registered under the number
N° TPS 17 ATEX Q 53690 008 by the TUV SUD Zertifizierstelle München, notified body
registered under the number 0123.
This declaration is exclusively issued under the responsibility of the manufacturer or, where
appropriate, by the authorized representative.
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