Geotech GEM5000 User manual

GEM5000 Gas Analyser
Operating Manual
Geotechnical Instruments (UK) Ltd
Sovereign House
Queensway
Leamington Spa
Warwickshire
CV31 3JR
England
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.geotechuk.com

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Table of contents
1.0 MANUAL GUIDELINES ...................................................................................... 6
1.1 Document history ............................................................................................. 6
1.2 Hazard warnings and safety symbols .................................................................. 6
1.3 Notes.............................................................................................................. 6
2.0 INTRODUCTION ............................................................................................... 7
2.1 Safety instructions............................................................................................ 7
2.2 Instructions for safe use.................................................................................... 8
2.3 MCERTS (applied for)...................................................................................... 10
2.4 CIRIA............................................................................................................ 10
2.5 Declaration of conformity ................................................................................ 11
3.0 THE GEM5000 GAS ANALYSER .......................................................................... 14
3.1 The GEM5000 ................................................................................................ 14
3.2 GEM5000 standard product.............................................................................. 15
4.0 GEM5000 OPTIONAL PRODUCTS AND ACCESSORIES...................................... 17
4.1 Optional products ........................................................................................... 17
4.1.1 Pitot tube (optional) .................................................................................. 17
4.1.2 Orifice plate (optional)............................................................................... 17
4.1.3 Temperature probe (optional)..................................................................... 17
4.1.4 Anemometer (optional).............................................................................. 17
4.1.5 H2S filter (optional) ................................................................................... 18
4.1.6 Gas analyser manager –GAM (optional) ...................................................... 18
4.1.7 GPS (optional).......................................................................................... 18
4.1.8 Bluetooth dongle (optional)........................................................................ 18
4.2 Instrument accessory products ........................................................................ 19
5.0 GEM5000 INSTRUMENT FEATURES ................................................................. 20
5.1 Physical characteristics of the instrument panel.................................................. 20
5.2 Analyser features and keys.............................................................................. 21
5.3 Instrument connection points........................................................................... 22
6.0 GENERAL OPERATIONAL INSTRUCTIONS ....................................................... 23
6.1 Switching the instrument on ............................................................................ 23
6.1.1 Power on self-test........................................................................................ 23
6.2 Switching the analyser off ............................................................................... 23
6.3 Instrument status icons................................................................................... 24
6.4 Instrument LED power states........................................................................... 25
6.5 Changing between parameters......................................................................... 25
6.6 Entering data ................................................................................................. 25
6.7 Instrument main gas read screen ..................................................................... 26
6.8 Storage......................................................................................................... 26
6.9 Battery/charging ............................................................................................ 26
6.10 Cleaning instructions.................................................................................... 27
6.11 Memory...................................................................................................... 27
6.12 Warning and error codes .............................................................................. 28
7.0 OPERATOR SETTINGS..................................................................................... 29
7.1 Menu key ...................................................................................................... 29

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7.2 Device settings .............................................................................................. 29
7.2.1 Date and time .......................................................................................... 29
7.2.2 Bluetooth................................................................................................. 30
7.2.3 Device information.................................................................................... 31
7.2.4 Diagnostics .............................................................................................. 31
7.2.5 Navigation (optional)................................................................................. 32
7.3 User settings ................................................................................................. 33
7.3.1 Operating language................................................................................... 33
7.3.2 Units of measurement ............................................................................... 34
7.3.3 ID selection.............................................................................................. 35
7.3.4 Adjust backlight........................................................................................ 36
7.3.5 Adjust volume .......................................................................................... 37
7.3.6 User Prompts .............................................................................................. 38
7.4 Operation settings .......................................................................................... 38
7.4.1 Timers..................................................................................................... 38
7.4.2 Gas Check ............................................................................................... 39
7.4.4 Set alarms ............................................................................................... 41
7.4.5 Adjust flow fail ......................................................................................... 41
7.4.6 Technician login........................................................................................... 42
7.5 Exit menu...................................................................................................... 43
8.0 TAKING READINGS......................................................................................... 44
8.1 Preliminary checks before taking readings (best practice).................................... 44
8.2 Update site data............................................................................................. 45
8.3 Special action ................................................................................................ 45
8.3.1 Configuration of the data logging option ......................................................... 47
8.3.2 Profiling option ............................................................................................ 47
8.4 GEM analyser in GA mode ............................................................................... 48
8.5 The gas flow measurement screen.................................................................... 48
8.6 How to use an anemometer (optional) .............................................................. 49
8.7 How to use a pitot tube (optional) .................................................................... 52
8.8 How to use an H2S filter (optional).................................................................... 53
8.8.1 Cross gas effects on chemical cells.............................................................. 53
8.8.2 Cross-gas effects on methane, carbon dioxide and oxygen............................. 54
8.9 How to use a temperature probe (optional) ....................................................... 56
8.10 How to identify a borehole using the GPS feature (optional).............................. 56
8.11 Taking gas and flow measurement................................................................. 60
9.0 CALIBRATION ................................................................................................ 61
9.1 Calibration introduction ................................................................................... 61
9.2 Frequency of calibration –best practice............................................................. 61
9.3 Calibration gases............................................................................................ 62
9.4 Calibration set-up........................................................................................... 63
9.5 Calibration equipment..................................................................................... 63
9.6 Gas analyser.................................................................................................. 64
9.7 Calibration processes –best practice ................................................................ 64
9.7.1 Gas Check in fresh air ............................................................................... 65
9.8 Restore to factory........................................................................................ 67
9.9 Calibration history .......................................................................................... 67
9.10 Calibration summary.................................................................................... 67
10.0 PROBLEM SOLVING ..................................................................................... 68
11.0 WARNING AND ERROR DISPLAY.................................................................. 68
12.0 SERVICE ...................................................................................................... 69
13.0 WARRANTY POLICY ..................................................................................... 70
14.0 SAMPLE CERTIFICATE OF CALIBRATION ..................................................... 71

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15.0 IMPORTANT NOTICE TO ALL CUSTOMERS.................................................... 73
16.0 APPENDICES –SAFETY INSTRUCTIONS....................................................... 74
16.1 Instructions for safe use –Italian language..................................................... 74
16.2 Instructions for safe use –German language .................................................. 82
16.3 Instructions for safe use –French language .................................................... 91
16.4 Instructions for safe use –Spanish language .................................................101
16.5 Instructions for safe use - Portuguese language .............................................110
17.0 GLOSSARY OF TERMS ................................................................................ 112

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1.0 Manual guidelines
1.1 Document history
Issued
By
Issue
Date
Change
Control ID
Issue
No.
Reason for Change
LA
JAN 2012
OMGEM5KN
1.01
New Instructions.
MS
JULY 2012
OMGEM5KN
1.02
New instructions.
JH
JAN 2013
OMGEM5KN
2
New instructions.
JH
MAR 2013
OMGEM5KN
3
New instructions.
JH
AUG 2013
OMGEM5KN
4
New instructions
1.2 Hazard warnings and safety symbols
Warning
Information in this manual that may affect the safety of users
and others is preceded by the warning symbol.
Caution - Failure to follow the correct information may result in
physical injury which in some cases could be fatal. If the
equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.
General product label symbols are listed as follows:
CE conformity-The CE-
marking is the manufacturer's
statement to the EU
authorities that the product
complies with all relevant CE-
marking Directives.
If the CSA mark appears with
the indicator "US" or "NRTL" it
means that the product is
certified for the U.S. market, to
the applicable U.S. standards.
VDE mark is a symbol for
electrical, mechanical,
thermal, toxic, radiological
and other hazards.
Separate collection, handling
and disposal for waste electrical
and electronic equipment and
its
components.
Electric shock warning.
Refer to operators manual.
Double insulated construction
- does not require an Earth.
Specific marking of explosion
protection (ATEX only).
II 2G
Equipment group and
category. G = gases; the type
of explosive atmosphere.
IECEx licenced mark
(IECEx only).
Fuse.
Equipment for indoor use only.
1.3 Notes
Important/useful information and instructions are shown clearly throughout the manual in
a note format. For example:
Note: For further information please contact Technical Support at Geotech on
[phone] or email [e-mail]

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2.0 Introduction
This manual explains how to use the GEM5000 landfill gas analyser. The GEM5000 has
additional functionality to the GA5000 gas analyser. The GA5000 measures gas
concentrations only, whereas the GEM5000 measures flow and gas concentrations. The
GEM5000 measures flow and calculates the calorific values of the gas as well as being a
useful tool for balancing the gas field. The GEM5000 gas analyser may be used to monitor,
calculate, adjust and record the flow at each monitoring point.
This instrument may also be used in GA5000 mode of operation if required. The operator
may change the analyser between a gas extraction monitor (a GEM5000 gas analyser) or a
landfill gas analyser (a GA5000 gas analyser). The mode of operation can be changed from
the ‘Special Action’ menu. Please refer to section ‘8.0 –Taking Readings’for further
instruction.
The 5000 series of gas analysers complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that may cause
undesired operation.
2.1 Safety instructions
Warning
The 5000 series of gas analysers can be used for measuring gases
from landfill sites and other sources as described in this manual.
The operator may be exposed to harmful gases during the use of the
instrument. Inhaling these gases may be harmful to health and in
some cases may be fatal.
It is the responsibility of the user to ensure that he/she is adequately
trained in the safety aspects of the gases being used and appropriate
procedures are followed. In particular, where hazardous gases are
being used the gas exhausted from the analyser must be piped to an
area where it is safe to discharge the gas.
Hazardous gas can also be expelled from the instrument when
purging with clean air.
The instrument has been designed to be used in explosive
atmospheres as defined by the classification. The instrument can be
configured to measure low levels of several gases, but may not be
certified for use in potentially explosive atmospheres of these gases.
It is the responsibility of the operator to determine the protection
concept and classification of equipment required for a particular
application and whether these gases create a potentially explosive
atmosphere.
Note:Gas analysers are a sensitive piece of scientific equipment, and should be
treated as such. If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the instrument may be impaired.

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2.2 Instructions for safe use
For ATEX and IECEx the 5000 series of gas analysers are certified to Hazardous
Area Classification
II 2G Ex ib IIA T1 Gb (Ta = -10ºC to +50ºC)
It is vital instructions are followed closely. It is the responsibility of the operator to
determine the protection concept and classification required for a particular application.
(Reference European ATEX Directive 94/9/EC, Annex II, 1.0.6)
The following instructions apply to equipment covered by certificate numbers SIRA
11ATEX2197X and IECEx Directive SIR 11.0089X:
The equipment may be used with flammable gases and vapours with apparatus
group IIA and temperature class T1.
The equipment can contain gas sensing heads for the detection of particular gases.
The inclusion of a sensor does not infer that the equipment is suitable for the use of
gases with a temperature class of less than T1.
The equipment is only certified for use in ambient temperatures in the range -10ºC
to +50ºC and should not be used outside this range.
The equipment must not be used in an atmosphere of greater than 21% oxygen.
Repair of this equipment shall be carried out in accordance with the applicable code
of practice.
When used in a hazardous area only use GF5.2 temperature probe (SIRA
11ATEX2197X and IECEx SIR11.0089X). For connector C, the GF5.4 anemometer
(BVS 04ATEXE194) for use with ATEX only. The analyser should not be connected
to any other devices in the hazardous area including the GF-USB lead (connector A)
or GF3.9 battery charger (connector B) supplied with the analyser.
Do not charge, recharge or open in a potentially explosive atmosphere.
In hazardous area only use “Temperature Probe GF5.2” in Connector B.
Connector C (Uo=10V,lo=5mA,Po=50mW,Ci=0,Li=0,Co=100uF,Lo=1000mH),
Connector B (Uo=5V,lo=6mA,Po=7mW,Ci=0,Li=0,Co=100uF,Lo=1000mH)
MAXIMUM NON-HAZARDOUS SUPPLIES:
Connector A - Um=6V Connector B - Um=10.1V
The safe area apparatus that is to be connected to the USB Port shall be a Safety
Extra Low Voltage (SELV) or Protective Extra Low Voltage (PELV) circuit.
Only a Geotechnical Instrument battery pack part number 20087 or 2011113 is
permitted as a replacement. This battery pack shall only be changed in a safe area
by Geotech personnel or authorised distributors.
Only Battery Charger type GF3.9 shall be used to recharge the batteries via
Connector ‘B’.
If the equipment is likely to come into contact with aggressive substances, e.g.

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acidic liquids or gases that may attack metals, or solvents that may affect
polymeric materials, then it is the responsibility of the user to take suitable
precautions, e.g. regular checks as part of routine inspections or establishing from
the material’s data sheet that it is resistant to specific chemicals that prevent it
from being adversely affected, thus ensuring that the type of protection is not
compromised.
The relative pressure range is +/-500 mbar. Note, however, that the input pressure
should not exceed +/- 500 mbar relative to atmospheric pressure and the output
pressure should not exceed +/- 100 mbar relative to atmospheric pressure.
For CSA (Canada) the 5000 series of gas analysers are certified to Hazardous
Area Classification
CLASS 2258 03 - PROCESS CONTROL EQUIPMENT - Intrinsically Safe and Non-
Incendive Systems - For Hazardous Locations
Ex ib IIA:
Model GA 5000, GEM 5000 and BIOGAS 5000 Methane Detectors; portable, battery
powered with non-field-replaceable Battery Pack P/N 20087 or 2011113; intrinsically safe
and providing intrinsically safe circuits (“[ib]” for Zone 1) to Model GF5.2 Temperature
Probe (Connector B) and with entity output parameters as tabulated below; Temperature
Code T1; -10 ºC Tamb. +50ºC.
Connector
Entity Parameters
Uo
(V)
Io
(mA)
Po
(mW)
Co
(uF)
Lo
(mH)
Ci
(uF)
Li
(mH)
B
5.0
6
7
100
1000
0
0
C
10.0
5
50
100
1000
0
0
Note: This device has been investigated for electrical safety features only.
For CSA (USA) the 5000 series of gas analysers are certified to Hazardous Area
Classification
CLASS 2258 83 - PROCESS CONTROL EQUIPMENT - Intrinsically Safe and Non-
Incendive Systems –For Hazardous Locations - CERTIFIED TO U.S. STANDARDS
AEx ib IIA:
Model GA 5000, GEM 5000 and BIOGAS 5000 Methane Detectors; portable, battery
powered with non-field-replaceable Battery Pack P/N 20087 or 2011113; intrinsically safe
and providing intrinsically safe circuits (“[ib]” for Zone 1) to Model GF5.2 Temperature

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Probe (Connector B) and with entity output parameters as tabulated below; Temperature
Code T1; -10 ºC Tamb. +50ºC.
Connector
Entity Parameters
Uo
(V)
Io
(mA)
Po
(mW)
Co
(uF)
Lo
(mH)
Ci
(uF)
Li
(mH)
B
5.0
6
7
100
1000
0
0
C
10.0
5
50
100
1000
0
0
Note: This device has been investigated for electrical safety features only.
2.3 MCERTS (applied for)
MCERTS is the UK Environment Agency's Monitoring Certification Scheme. The scheme
provides a framework within which environmental measurements can be made in
accordance with the Agency's quality requirements. The scheme covers a range of
monitoring, sampling and inspection activities.
The GEM5000 instrument is MCERTS certified only if:
The MCERTS logo appears on the screen after initial power on.
Note: MCERTS - Cross sensitivity tests using hydrogen sulphide were not carried
out on this instrument. Therefore, users should be aware if H2S is present
on sites, as there may be an interferential effect.
MCERTS promotes public confidence in monitoring data and provides industry with a
proven framework for choosing monitoring systems and services that meet the
Environment Agency's performance requirements.
The Environment Agency has established its Monitoring Certification Scheme (MCERTS) to
deliver quality environmental measurements. The MCERTS product certification scheme
provides for the certification of products according to Environment Agency performance
standards, based on relevant CEN, ISO and national standards.
MCERTS certified instruments have been tested by an independent body to ensure that
they meet certain performance requirements. In addition the manufacturer of an MCERTS
product is regularly audited to ensure that the performance requirements of the
certification are being continually met.
The 5000 series of gas analysers have been certified to Version 3.1 of the ‘Performance
Standards for Portable Emission Monitoring Systems’.
2.4 CIRIA
The CIRIA guideline ‘Assessing the risks posed by hazardous ground gases to buildings’
proposes that gas concentrations and flow rates should be monitored.
As an example methodology, they suggest using a gas analyser to first measure flow and
pressure and then afterwards to measure gas concentration.
The logging profile option offers frequency of data to be collected within a timed period
which, in return, identifies a gas profile of the sample point being monitored, information
about whether the sample point is performing correctly, when the peaks occur and
whether air is drawn in after a certain period. This logging option is available on firmware

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software version 1.6.5
Versions of the GA5000 analyser range with internal flow on firmware version 1.6.5 and
above have the ability to take measurements according to the CIRIA guidelines, while still
allowing other users to take the measurements as before.
2.5 Declaration of conformity
Products
GA5000 - Landfill Gas Analyser
GEM5000 - Landfill Gas Analyser and Extraction Monitor
BIOGAS 5000 –Anaerobic Digester Gas Analyser
Geotechnical Instruments (UK) Limited declares that the item(s) described above are in
compliance with the following standards:
ATEX Directive 94/9/EC
Certification body
SIRA Certification Service
Notified body number
0518
Address
Rake Lane, Eccleston, Chester, CH4 9JN
SIRA certificate number
SIRA 11ATEX2197X
Standards applied
EN60079-0 :2006
EN60079-0 :2009
EN60079-11 :2007
IECEx
Certification body
SIRA Certification Service
Notified body number
0518
Address
Rake Lane, Eccleston, Chester, CH4 9JN
IECEx certificate number
SIR 11.0089X
Standards applied
IEC60079-0 :2004 Ed4
IEC60079-0 :2007 Ed5
IEC60079-11 :2006 Ed5
CSA (Canada and USA)
Certification body
CSA International

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Address
178 Rexdale Boulevard, Toronto, ON, Canada M9W 1R3
CSA Certificate number
CSA 11 2445306
Standards applied
C22.2 No. 0-10 - General Requirements –Canadian
Electrical Code, Part II
CAN/CSA-C22.2 No. 60079-0:07 - Electrical apparatus for
explosive gas atmospheres - Part 0: General
Requirements
CAN/CSA-C22.2 No. 60079-1:07 - Electrical apparatus for
explosive gas atmospheres - Part 1: Flameproof
enclosures "d"
CAN/CSA-E60079-11:02 - Electrical apparatus for
explosive gas atmospheres - Part 11: Intrinsic Safety "i"
ANSI/UL 60079-0:09 - Electrical Apparatus for Explosive
Gas Atmospheres - Part 0: General Requirements
ANSI/UL 60079-1:09 - Electrical Apparatus for Explosive
Gas Atmospheres - Part 1: Flameproof Enclosures “d”
ANSI/UL 60079-11:09 - Electrical apparatus for Explosive
Gas Atmospheres - Part 11: Intrinsic Safety “i”

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EMC Directive 2004/108/EC
EN 301 489 Pt 1 (V1.9.1 –2011-04)
EN 301 489 Pt 17 (V2.1.1 –2009-05)
EN 301 489 Pt 19 (V1.2.1 –2002-11)
BS EN 61000-3-2: 2006 + A2:2009
BS EN 61000-3-3: 2008
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC)
standard for radio equipment and services;
Part 1: Common technical requirements
Electromagnetic compatibility
and Radio spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC)
standard for radio equipment;
Part 17: Specific conditions for
Broadband Data Transmission Systems
EMC for broadband data transmission
systems
Electromagnetic compatibility and Radio
spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC) standard
for radio equipment and services;
Part 19: Specific conditions for Receive Only
Mobile Earth Stations (ROMES) operating in
the 1,5 GHz band providing data
communications
EMC for Receive Only Mobile Earth Stations
(ROMES)
Electromagnetic compatibility (EMC). Limits.
Limits for harmonic current emissions
(equipment input current ≤ 16 A per phase)
Electromagnetic compatibility (EMC). Limits.
Limitation of voltage changes, voltage
fluctuations and flicker in public low-voltage
supply systems, for equipment with rated
current ≤ 16 A per phase and not subject to
conditional connection
Signed:
Dr. Roger Riley
NPI Director and Authorised Person

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3.0 The GEM5000 gas analyser
3.1 The GEM5000
GEM5000 gas analyser
The GEM5000 gas analyser is designed to monitor landfill gas extraction systems.
Benefits:
Allows balancing of gas extraction site.
Maximise power generation from site.
Field proven.
Standardises monitoring routines.
Easy transfer of data.
GPS for compliance.
Features:
ATEX certified.
MCERTS approved.
H2compensated CO.
Calculates flow (m3/hr) and calorific value (kW or BTU).
Technician log-in.
Event log.
Two instruments in one (GA and GEM mode).
Measures static and differential pressure.
Simultaneous display of gases.
Storage of changes in set-up of gas field.
Data logging.
Applications:
Gas extraction fields.
Flare monitoring.
Landfill sites.

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3.2 GEM5000 standard product
GEM5000
Reference:
A
Hard carry case
B
In-line water trap tubing & filter
C
Gas analyser instrument
D
Operating manual CD
E
Mains battery charger and adaptors:
-UK
-Europe
-US
-Australia
F
H2S filter (optional –if the compensated CO cell is fitted)

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4.0 GEM5000 optional products and accessories
4.1 Optional products
The GEM5000 gas analyser has a number of optional products for purchase which enhance
the usability and enable further analysis of data and reading information.
Note: For more information on the features listed in this section please contact Sales at
Geotech on [phone] or email Sa[email protected].
4.1.1 Pitot tube (optional)
The GEM5000 gas analyser enables the use of a pitot tube to aid accurate flow
measurement. The pitot tube is used for gas extraction systems and the pressure
readings are taken in mbar. High gas flow is calculated in the analyser in m3/hr (metres
cubed per hour).
4.1.2 Orifice plate (optional)
Geotech recommends the use of orifice plates as good practice when using the GEM5000
gas analyser, enabling repeatability in flow measurement via a fixed method. Orifice
plates are a specialised product and configuration and Geotech does not currently
manufacture or sell spare parts for this product. Please refer to a specialist supplier if
the use of Orifice plates is required.
4.1.3 Temperature probe (optional)
The GEM5000 gas analyser has the facility to automatically display and record the
borehole temperature via an optional temperature probe.
When a temperature probe is fitted the temperature reading will be displayed on the
‘Main Gas Read Screen’ and recorded with all other data.
Note: Temperature probes with an Ex label are part of the GEM5000 Ex certification
SIRA 11ATEX2197X and IECEx SIR11.0089X, and therefore certified for use
under the same conditions as the analyser.
4.1.4 Anemometer (optional)
The GEM5000 gas analyser has the facility to automatically display and record high flow
via an optional anemometer probe. It is designed to plug into the instrument and
instantly provide a flow indication. An anemometer probe adds flow measurements to
the professional reporting ability of the GEM5000 range along with gas concentrations,
pressure and temperature.
The anemometer has a simple connection, a narrow diameter measurement head
(11mm), a wide temperature operating range (up to 80oC) and indicates flows up to 40
m/sec.
When an anemometer probe is fitted to the analyser the flow will be displayed in the
‘Main Gas Read Screen’ and recorded with all other data.
Flow can be measured in either m/s (gas velocity) or m3/hr (volume flow rate). In order
to calculate the volume flow rate the pipe diameter will need to be entered into the
instrument, either manually or via the Gas Analyser Manager software.
Note: The anemometer probe is part of the analyser Ex certification BVS 04ATEXE194
for use with ATEX only and is therefore certified for use in a potentially

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explosive atmosphere. To use the m3/hr option the firmware software within
the analyser must be set at the time of manufacture.
4.1.5 H2S filter (optional)
The GEM5000 gas analyser has the capability to use an H2S filter and is required as
standard if the compensated CO cell is fitted and configured at the time the instrument is
manufactured. H2S gas can have a cross-gas effect on the CO reading. By using a filter,
the H2S is removed from the gas sample, therefore providing a more accurate CO
reading.
The filter only needs to be used when you are trying to get rid of any possible cross gas
effects H2S might have on other gases. Do not use the filter on all boreholes.
4.1.6 Gas analyser manager –GAM (optional)
Gas Analyser Manager (GAM) enables the operator to maximise the operation of the gas
analyser. It enables direct communication with the unit, features a simple upload and
download facility and is fully compatible with the latest Microsoft™ operating systems.
Features:
Organisation and transfer of borehole IDs and readings to and from the gas
analyser.
Configuration of the gas analyser.
Flexible grouping of the IDs.
Structured organisation of transferred data.
Automatic detection of instrument type and available options.
Secure data mode to prevent tampering.
First time set-up wizard.
Enable flow measurements for GEM5000 gas analysers.
4.1.7 GPS (optional)
An optional GPS feature is available for the GEM5000 gas analyser. It enables the site
engineer to automatically locate borehole IDs using GPS satellite signal from predefined
borehole IDs uploaded from Gas Analyser Manager or set on the analyser when out in the
field prior to taking a reading. The GPS reading data is stored for each measurement
reading providing an audit trail confirming that a reading was taken.
4.1.8 Bluetooth dongle (optional)
An optional Bluetooth feature enables the operator to set and utilise Bluetooth
technology. This may be useful when downloading gas readings from the analyser to the
PC instead of connecting the analyser to a PC via a USB lead. Bluetooth may also be
used to transfer Site IDs to other 5000 series gas analysers if required. Bluetooth is
activated by plugging the dongle into a pc USB port and switching on the Bluetooth
option feature in the settings on the analyser.

GEM5000 gas analyser OMGEM5KN4
Copyright Geotech Page 19
4.2 Instrument accessory products
Optional accessory and replacement parts must ONLY be purchased for the GEM5000 gas
analyser direct from Geotech or your agent. Please contact [e-mail] for
further details on pricing and how to order.
Ref
Description
Order
Code
A
Hard carry case
GF2.5
B
Hard carry case backpack (hard carry case not included)
GF2.6
C
Soft carry case
GF5.1
D
Battery charger and adaptors
GF3.9
E
Anemometer (ATEX certified)
GF5.4
F
H2S/Hydrocarbon filters
H2S/Hydrocarbon filters (pack of 5)
GF6.4
GF6.5
G
Temperature probe (ATEX certified)
GF5.2
H
Pitot tube kit
PITOT
I
In-line water trap filter & tubing
GF1.8
J
Water trap with barbed filters (pack of 10)
Water trap with barbed filters (pack of 30)
GA4.9
GA4.9(30)
K
Gas ports connectors (pack of 10)
MC10
L
Sampling tube 5m length flexible PVC tubing (3/16”id)
GA2.3
M
Spare window for the soft carry case
GF5.3
N
Gas Analyser Manager (GAM)
USB lead
Bluetooth dongle
GAM
GFUSB
BLUEDON
O
Check gas regulator and tubing for calibration gas.
Calibration gas canister. Please contact
[email protected] for gas canister concentrations
GA6.8

OMGEM5KN4 GEM5000 gas analyser
Page 20 Copyright Geotech
5.0 GEM5000 instrument features
5.1 Physical characteristics of the instrument panel
Front view: Reference:
Back view: Reference:
A
Main Gas Read Screen
B
Soft-keys
C
Backlight Key
D
Menu Key
E
Key 2 –Page Up
F
Key 4 –Scroll Left
G
Pump Key
H
I
LED Light
On/Off Key
J
Assistance Key
K
Key 6 –Scroll Right
L
Key 8 –Page Down
M
Enter Key
N
General Keys
O Model Number
P
Serial Number
Q
R
S
Part Number
Certification Number
Recalibration Due
A
B
C
D
G
E
F
I
H
J
K
L
M
N
O
P
Q
R
S