QED Geotech SEM5000 User manual
OPERATING MANUAL
Gas-Detection
Lauper Instruments AG
Irisweg 16B
CH-3280 Murten
Tel. +4126 672 30 50
www.lauper-instruments.ch
Page 2of 36
OMSEM5000 Iss. 01
TABLE OF CONTENTS
1DECLARATION OF CONFORMITY...........................................................................................................................................................3
2WARNINGS ATEX ..........................................................................................................................................................................................4
3GENERAL DESCRIPTION ............................................................................................................................................................................6
4USER INTERFACE ..........................................................................................................................................................................................7
OVERVIEW OF THE INSTRUMENT ................................................................................................................................................................................................7
CONNECTIONS....................................................................................................................................................................................................................................7
DISPLAY .................................................................................................................................................................................................................................................8
NAVIGATION SYSTEM (MENU)......................................................................................................................................................................................................9
5INSTRUMENT FUNCTIONS .................................................................................................................................................................... 10
SWITCHING THE INSTRUMENT ON AND OFF.................................................................................................................................................................... 10
Switch ON........................................................................................................................................................................................................................... 10
Switch OFF......................................................................................................................................................................................................................... 10
6START SURVEY ............................................................................................................................................................................................11
USE OF GPS......................................................................................................................................................................................................................................11
GPS Activation.................................................................................................................................................................................................................. 11
SAVING LEAKS...................................................................................................................................................................................................................................12
DELETE DATA ....................................................................................................................................................................................................................................12
DESCRIPTION OF THE PNEUMATIC CIRCUITS........................................................................................................................................................................12
Malfunction of the pneumatic circuit / Pump OFF...............................................................................................................................12
Restarting the pump operation............................................................................................................................................................................13
SAVING LEAKS...................................................................................................................................................................................................................................13
SAVE TO POINT .................................................................................................................................................................................................................................14
GEOLOCATION ..................................................................................................................................................................................................................................15
END SURVEY ......................................................................................................................................................................................................................................15
7SETTINGS....................................................................................................................................................................................................... 16
MEASUREMENT RANGE...............................................................................................................................................................................................................16
Methane measurement ............................................................................................................................................................................................ 16
Measure in absolute mode (ABS) and relative mode (REL)............................................................................................................ 16
SETTING THE ALARM THRESHOLD ............................................................................................................................................................................................17
ACOUSTIC AND VISUAL ALARM..................................................................................................................................................................................................17
BACKLIGHT -DISPLAY ILLUMINATION....................................................................................................................................................................................17
BLUETOOTH DESCRIPTION (OPTIONAL)............................................................................................................................................................................17
RECHARGING THE BATTERY PACK.......................................................................................................................................................................................... 18
8MAINTENANCE............................................................................................................................................................................................ 19
REPLACING THE BATTERY PACK.............................................................................................................................................................................................. 19
REPLACING THE HYDROPHOBIC FILTER ...............................................................................................................................................................................20
REPLACING THE PROBE FILTERS .............................................................................................................................................................................................20
REPLACING THE SAMPLE TUBING ............................................................................................................................................................................................22
9CH4ACCURACY TEST............................................................................................................................................................................... 25
SERVICE AND CALIBRATION .......................................................................................................................................................................................................25
ALARMS AND ERROR INFORMATION ......................................................................................................................................................................................25
10 WARRANTY .................................................................................................................................................................................................. 27
11 ACCESSORIES..............................................................................................................................................................................................30
12 APPENDIX A –SAFE USE OF THE INSTRUMENT ...........................................................................................................................31
LASER RADIATION............................................................................................................................................................................................................................31
OTHER PRECAUTIONS FOR THE USAGE ..................................................................................................................................................................................31
TESTING AND MAINTENANCE .....................................................................................................................................................................................................31
REPAIR..................................................................................................................................................................................................................................................31
13 APPENDIX B –TECHNICAL SPECIFICATION................................................................................................................................... 32
14 APPENDIX C - INFORMATION ON DISPOSAL FOR USERS OF WASTE ELECTRICAL & ELECTRONIC
EQUIPMENT............................................................................................................................................................................................................ 33
15 APPENDIX D –BLUETOOTH MODULE COMPLIANCE ................................................................................................................ 34
UNITED STATES ..............................................................................................................................................................................................................................34
CANADA..............................................................................................................................................................................................................................................34
EUROPE...............................................................................................................................................................................................................................................35
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OMSEM5000 Iss. 01
2WARNINGS ATEX
The operating manual must be read and fully understood before using the equipment.
This warning is in place so that the operator fully understands the product and its use within
the application.
Battery must be replaced in a non-hazardous, safe area
Use only with battery pack QED PBLO
Battery pack QED PBLO must only be used with QED LASER ONE or SEM5000
Do not charge the device in a hazardous area OR only charge in a non-hazardous, safe area
Battery charging and communication (USB) must only be done in a non-hazardous, safe area
with adapter QED CCLO 100189
Use only this device to charge QED LASER ONE and SEM5000
Maximum voltage Um ≤ 15V
The maximum voltage that can be applied to the external adapter QED CCLO 100189 to
charge QED LASER ONE and SEM5000 without invalidating the type of protection is 15 volts.
Do not connect the LASER ONE/SEM5000, the battery pack PBLO and adapter CCLO to other
equipment.
These three devices are only designed to be used together to ensure the correct functionality
of the device and guarantee the safety of the operator.
Do not open the device
Only the manufacturer or its authorised representatives can open the device for maintenance
and repair.
Unauthorised opening of the device invalidates the integrity, certification and guarantee of the
product.
ATEX accessories
Use only the following accessories with the instrument LASER ONE (SEM5000):
➢Rechargeable battery pack lithium ion (PBLO.NNNN.YY 3,7V 4000mAh) Code:
205014
➢External adapter (CCLO.NNNNN.YY) Code: 100189
➢Power supply (Um<15 volts) Code: 423007
➢Car cable power supply Code: 102010
Page 5of 36
OMSEM5000 Iss. 01
Except in a situation of damage or repairs being required, it is recommended that the device is
sent to QED annually for inspection, maintenance, and calibration.
Non-USA
USA
Tel:
+44(0)333 800 0088
(800) 624-2026
Address:
Unit 3 –Cyan Park, Coventry, UK, CV2
4QP
2355 Bishop Circle West, Dexter, MI. 48130,
USA
The apparatus type “LASER ONE” “SEM5000”, is usable in gas explosive atmosphere of group
IIB and temperature class T3 for an ambient temperature from -25°C to +50°C.
The apparatus is category 2 and may be used in areas 1 and 2.
The respect of essential safety requirements, defined in annex II of the 2014/34/ UE directive
from 26th February 2014, is obtain by the apparatus conformity to the standards:
EN 60079-0 : 2012 + A11 :2013 Explosive atmospheres –Part 0: Equipment –General
requirements
EN 60079-11:2012 Explosive atmospheres –Part 11. Equipment protection
by intrinsic safety « i »
EN 60079-28:2015 Explosive atmospheres –Part 28. Protection of
equipment and transmission systems using optical
radiation.
The following are applied to the apparatus:
Certificate number: INERIS 19 ATEX0017X.
Marking: II 2 G Ex ib op is IIB T3 Gb -25°CTa+50°C
Operating Temperature: -25°C to +50°C
Note: The reduction of the range of temperature (-25°C to +50°C) results from functional
conditions only.
Page 6of 36
OMSEM5000 Iss. 01
3GENERAL DESCRIPTION
The SEM5000 is a digital gas detection instrument from QED Environmental Systems
Ltd. The intended use of the SEM5000 is the measurement of low concentrations of
Methane in various applications (Landfill surface emissions monitoring, leakage surveys
of natural gas networks, control pinpointing outside buildings, quantifying methane
fluxes, and laboratory applications for gas analysis).
The SEM5000 instrument has selective measurement to Methane due to the Laser
technology used. The SEM5000 delivers reliable and accurate measurements of
Methane concentrations, irrespective of whether 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). Its capability to measure from lower
concentrations to higher concentrations changing between ranges rapidly, makes
SEM5000 the appropriate instrument for the detection of leaks from Landfill gas
applications and also as an analyser for the quantification of gas emissions. Thanks to
its metrological sensitivity, accuracy, stability and response, SEM5000 is particularly
suited to any application requiring the measurement of Methane concentrations in
sampling mode or in line (option).
The single-dial function selector makes the SEM5000 easy to use and the large, back-
lit LCD-display 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 SEM5000 exists in an 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 environments, the user must adhere to the EN 1127-1:2019 (Explosive
atmospheres. Explosion prevention and protection - Basic concepts and methodology)
and the CLC/TR 50404:2003 “Electrostatics Code of practice for the avoidance of
hazards due to static electricity”.
Note: The images shown in this user manual are for illustrative purposes only.
Page 7of 36
OMSEM5000 Iss. 01
4USER INTERFACE
Overview of the instrument
Description
[1]
ON/OFF button + Backlight
[2]
Function button
[3]
Buzzer
[4]
Jogdial
[L]
LED Alarm Lights and Impact Bumpers
[S]
Carry strap Connectors
Connections
Description
[1]
Gas Sample Inlet
[2]
Battery Charger / Data
download Connector
[1]
[2]
[3]
[4]
[L]
[S]
[1]
[2]
[S]
Page 8of 36
OMSEM5000 Iss. 01
Display
SECTOR
DESCRIPTION
PRESENT IN ALL VERSION OF
SEM5000
[A]
Pump status
YES
[B]
Buzzer status
YES
[C]
GPS status
NO
[D]
Time
YES
[E]
Bluetooth
NO
[F]
Battery status
YES
[G]
Information line
NO
[H]
Current CH4reading
YES
[I]
GPS memory
[J1]
Type of view: ABS (absolute) –REL
(relative)
YES
[J2]
Gas measured –CH4
YES
[J3]
Unit of Measurement: ‘PPM’ (parts per
million) or ‘%VOL’ (volume)
YES
[K]
Peak value over last 120 seconds
NO
NOTE: When the options C [GPS] and E [Bluetooth] are not enabled, the icons
associated with these options are not displayed.
The icons for I [GPS memory] and K [Peak value] will only be displayed when the
instrument is in logging mode.
Page 9of 36
OMSEM5000 Iss. 01
Navigation System (menu)
Flow Diagram of the jogdial menu.
The following diagram shows a pictorial representation
of the SEM 5000’s menu layout.
Push the jogdial and the menu will appear in the
display window [A].
Rotate the jogdial to scroll through the available menu
options. Once you have identified your desired option,
push the jogdial to confirm your selection.
While a menu is active, the value of the gas is shown in
the upper right corner and in the upper right corner of
the display [B].
Select “ESC” to exit the Menu.
A short press of the power button will also close any
menu selection and return to the main screen.
Page 10 of 36
OMSEM5000 Iss. 01
5INSTRUMENT FUNCTIONS
Switching the instrument ON and OFF
Switch ON
Press the ON/OFF button for a few seconds, until
the display is activated.
The start sequence includes several steps:
-Geotech logo.
-Firmware version of the instrument, detector
board information, instrument serial number
and next service/calibration date.
-Current date / time and next calibration.
If there is data stored in the instrument, you will see
the message "DATA TO DOWNLOAD". In order to
download the data, the ProSoft software must be
used.
The instrument will warm up and self-calibrate. The
warm up will last approximately 20-seconds and
during this time, the instrument’s functions are not
available for use.
Once the warm up and calibration are complete, the
four LED lights will blink and the alarm will sound.
The SEM5000 is now ready for use.
Switch OFF
To switch off the instrument, press and hold the
ON/OFF button for a few seconds. A shut off
message will appear on the display and a timer will
count down. Once the counter starts to count down
the button can be released.
Page 11 of 36
OMSEM5000 Iss. 01
6START SURVEY
Use of GPS
After switching the instrument on, the GPS will not initially be active.
An integrated GPS module allows the user to save the measured gas level with current
GPS coordinates. The available memory installed in the instrument will give the user the
facility to store a full day of measurements, it can record up to 10 hours. The GPS
information is stored every second.
Note: Data is only acquired and saved when the GPS is active, and the pump is
running. A GPS memory display of ‘---- %’means that the instrument is not logging.
GPS Activation
To activate the GPS, press the Jogdial and rotate the
dial to scroll through the menu options until “GPS
ON” appears. Press the jogdial to confirm the
selection. The GPS icon will change status from “Off”
to “Active”.
The percentage of memory used will also be
displayed in the bottom left-hand corner.
Initially, only the percent symbol, (%), will be displayed. Once the GPS has obtained a
location fix 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.
Icon
Description
Icon
Description
Icon
Description
GPS active
but waiting
for signal
GPS off
GPS active
The GPS module is a high-performance receiver with the ability to track up to 20
satellites. The antenna is a standard, high gain, vehicular type that provides quality
tracking performance.
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 obtain a fix in
less than a minute.
Note:
In the event of signal loss during the survey, the instrument will continue to log gas
values and will associate the last saved tracked GPS position.
Page 12 of 36
OMSEM5000 Iss. 01
Saving leaks
To save a leak into the memory of the instrument, push the jogdial and rotate it until the
Menu “Save Leak” appears. Push the jogdial to save the leak.
This operation is possible only if the GPS is on.
Delete data
To delete the data stored in the instrument, press the
jogdial and rotate it until the menu displays DELETE
MEMORY. Press the jogdial to confirm the selection.
Description of the pneumatic circuits
The SEM5000 samples using a membrane pump. The typical flow is 0.8 l/m and the
minimum flow is 0.6 l/m.
The use of accessories, such as the probes can slightly reduce this flow. It is advised to
only use the parts and accessories supplied by QED Environmental Systems Limited.
The sample inlet port is suitable for a tube with the dimensions ID2mm X OD4 mm.
An internal hydrophobic filter protects the device against any ingress from dust or water.
An additional external filter is also recommended which can help protect the internal
filter.
Warning
The Hydrophobic filter is not design to filter anything other than
water or moisture; chemicals may damage the efficiency of the filter.
Please be vigilant when completing a survey and avoid sampling
dust and moisture, as if the filter is too saturated it, may result in
serious damage to the internal sensors.
Malfunction of the pneumatic circuit / Pump OFF
The instrument detects when the pump flow is within
normal operating parameters.
If the flow reduces below certain limits, the pump will
stop, the LEDs will light up, the pump icon will have a ‘X’
overlay and the message "PUMP ERROR" will be
displayed.
Page 13 of 36
OMSEM5000 Iss. 01
To toggle the sample pump between its ‘on’ and ‘off’
state, press the Function button.
When off, the pump icon will have a ‘X’ overlay and the
main display (and ‘%LEL’) will show four horizontal lines.
Warning
The ingress of water or impurities may cause the malfunction
of the pneumatic circuit and in some cases the damage to the
sensors.
Warning
If the sampling is interrupted or suspended by the pump being
turned off, the instrument will stop logging and horizontal lines
(" - - -") will appear adjacent to the memory capacity
percentage.
Restarting the pump operation
To turn the pump ON, press the Function button, the pump will restart and the ‘X’
overlaying the pump icon will dissapear.
Saving leaks
The SEM5000 instrument –when logging –records GPS events at the nominal rate of
one per second when a GPS signal lock is active. If the CH4 threshold is exceeded [see
section Error! Reference source not found.], then an alarm status is saved with each
event but it is the software that will determine this record as a leak event. The SEM5000
allows the operator to explicitly save a current
reading as a leak event.
Press the jogdial and rotate it until the menu displays
SAVE LEAK. Press the jogdial to confirm the
selection and the leak event will be stored
Page 14 of 36
OMSEM5000 Iss. 01
Save to point
In combination with appropriate management software, the SEM5000 instrument can
associate CH4 readings with named geographical points [points of interest]. These
points can be anything relevant to the use-case, but usually would be objects such as
pumps, well-heads, etc.
There are two ways to associate a reading with a
point. Firstly, press the jogdial and rotate until the
entry SAVE TO POINT is visible. Press the jogdial
again to confirm selection.
The alternative entry is to press and hold the jogdial
down for over a second.
If GPS is currently locked, the SEM5000 will
automatically display the four nearest points of
interest. Rotate the jogdial to select a point. Press the
jogdial to confirm selection and a point event will be
saved against the named point. If the required point is
not shown, because there are too many points within
a small distance, press the F [function] key to switch
to the search page.
In the search page, rotate the jogdial to select letters
or digits of the named points and press the jogdial to
select the character. The right-hand side view will list
matching points, if any. Press F to toggle the display
to right-hand side.
Rotate the jogdial to select the desired point, then
press the jogdial to confirm a selection.
To exit any of the point selection screen, press the
power button to immediately return to the main
instrument screen.
Page 15 of 36
OMSEM5000 Iss. 01
Geolocation
If points of interest are loaded into the instrument with
geo-fencing enabled, the SEM5000 will visibly notify
proximity to a named point.
When within the software defined geo-fence, the
nearest point name and proximal distance will be
displayed on the main screen. Additionally, the green
LED will be momentarily illuminated, and the buzzer
will momentarily sound.
End survey
To end the detection survey, manually stop the GPS or simply turn the instrument off.
Page 16 of 36
OMSEM5000 Iss. 01
7SETTINGS
Measurement Range
Methane measurement
The SEM5000 measurement will be displayed on the main screen.
The SEM5000 measurement is selective to Methane only and will not suffer from any
cross-gas contamination from other gases due to the Laser Diode technology used.
The dual range will display the measured Methane from 0-1% in ppm (by volume, 0 -
10,000ppm) and above 1% will automatically switch to display the measurement in
percentage by volume (%Vol) up to the full-scale of 100%.
Measure in absolute mode (ABS) and relative mode (REL)
The ‘Absolute’ measurement (ABS), is the measurement of the ambient concentrations
which will include the background level of Methane present in the atmosphere, this is
typically between 1.0 and 3.0 ppm.
It may be desirable for the user to remove this background level of Methane during the
measurement survey. The ‘Relative’measurement (REL) allows for the user to see more
easily a change in the environmental concentration, it may also make a transient leak of
gas more visible to the user as it would act as a contrast between the ambient
concentration and the magnitude of the leak.
When the instrument is in ‘Relative’ (REL) mode, if the detected measurement exceeds
a pre-defined value of 5ppm, the instrument will automatically switch to ‘Absolute’ (ABS)
mode. When the measurement returns to a lower value (i.e. <5ppm), the instrument will
automatically switch back to ‘relative’ (REL) mode.
Note: The choice of absolute or relative mode is stored as non-volatile configuration.
Each time the instrument is turned on, it will start using the same measurement mode it
was using previously.
ABS
MODE
REL
MODE
Page 17 of 36
OMSEM5000 Iss. 01
Setting the alarm threshold
The alarm threshold can be changed to best suit the
application requirements: the minimum permissible alarm
threshold is 1 ppm.
Push the jogdial to display the menu. Rotate the jogdial until
the menu item “THRESHOLD LASER”is visible then push the
jogdial to select this option.
When in the threshold menu, change the ppm threshold by
rotating the jogdial to increase or decrease the value.
To confirm the threshold level, push the jogdial.
Acoustic and visual alarm
When the instrument is powered on, or if a gas measured
exceeds the alarm threshold, an alarm will sound, and the
LED’s will flash.
To disable or enable this alarm setting, push the jogdial until
the option for the buzzer is displayed.
Push the jogdial to either disable or enable the Buzzer.
Backlight - Display illumination
To change the display illumination, push the ‘on/off’ button until you reach the
desiredillumination. The display has 4 levels of illumination.
Bluetooth description (OPTIONAL)
If the Bluetooth option is fitted, connectivity willalways be available, and a Bluetooth icon
willbe displayed on the main screen. When the instrument is connected to a host PC with
Bluetooth, the icon will have the letters ‘PC’ superimposed.
Page 18 of 36
OMSEM5000 Iss. 01
Recharging the Battery Pack
The LASER ONE (SEM5000) is supplied with its rechargeable battery pack (PBLO.NNNN.YY 3,7V
4Ah Code 205014). The charging of the battery is done only using the external adapter CCLO
(code 100189) and the power supply (Code 423007). Connect the charger with the power supply
according the figure below, using the two polarity connectors in conformity with the maximum
authorized voltage Um equal to 15V.
The battery charge cycle typically takes 4.5 Hrs, a red led will be on during the charge
cycle which when complete will change to green to indicate a full charge. The battery
level indicator on the LASER ONE (SEM5000) consists of three segments, the last of
which indicates that there is approximately 30 minutes of power remaining.
The typical operational time from a full charge is 10 hours at an ambient temperature of
20°C and with the backlight ON.
Advice about the use of lithium ion technology:
In order to optimize the use and the lifetime of your battery, please, follow the following
guidelines:
•Charge the battery with a temperature between the range [+10°; +30°C]
•Allow the battery to reach a complete discharge as frequently as possible
•Store in a dry place at a temperature preferably not exceeding 30°C
Central supply connector –Um=15V.
SEMsoft Comms For Service Only
Warning: Do not charge the device in a hazardous area OR only charge in a non-
hazardous, safe area.
Page 20 of 36
OMSEM5000 Iss. 01
Replacing the Hydrophobic Filter
Replacing the Probe 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 rubber housing found
at the end of the wand. The second is a cellulose fibre filter for fine dust particles and
is located at the top of the rubber housing.
Both filters should be replaced periodically. It is recommended that, at a minimum,
they be changed at the beginning of each emission survey. You may need to change
them more often, depending on individual site conditions.
Unlock the filter by turning it
counterclockwise and remove it.
Change the filter and reassemble by turning it
clockwise.
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