Geotech GA2000 User manual

 Copyright Geotechnical Instruments (UK) Limited
GA2000 Range Gas Analysers
Operating Manual
GA2000 PLUS C080126/00
Geotechnical Instruments (UK) Ltd
Sovereign House
Queensway
Leamington Spa
Warwickshire
CV31 3JR
England
Tel: [phone]
Fax: [phone]
Email: [email protected]
Website: www.geotech.co.uk

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able of Contents
1.0 MANUAL GUIDELINES ....................................................................................... 7
1.1 Document History ............................................................................................. 7
1.2 Safety Symbol ................................................................................................. 7
1.3 Notes .............................................................................................................. 7
2.0 IN RODUC ION ................................................................................................ 8
2.1 Safety Instructions ........................................................................................... 8
2.2 Instructions for Safe Use – English Language ....................................................... 8
2.3 CERTS .......................................................................................................... 9
2.4 CIRIA .............................................................................................................. 9
3.0 HE GA2000 RANGE GAS ANALYSERS ............................................................... 10
3.1 The GA2000 ................................................................................................... 10
3.2 The GA2000 Plus ............................................................................................ 11
3.3 Instrument Components – Standard Product ...................................................... 12
4.0 GA2000 RANGE OP IONAL PRODUC S AND ACCESSORIES ............................. 13
4.1 Optional Products ........................................................................................... 13
4.1.1 Temperature Probe (Optional) .................................................................... 13
4.1.2 Anemometer (Optional) ............................................................................. 13
4.1.3 External Gas Pod (Optional) ....................................................................... 13
4.1.4 H
2
S Filter (Optional) .................................................................................. 14
4.1.5 Internal Flow (Optional) ............................................................................. 14
4.1.6 Gas Analyser anager – GA (Optional) ...................................................... 14
4.1.6.1 Event Log (Optional) ............................................................................ 14
4.1.6.2 GPS (Optional) .................................................................................... 15
4.1.6.3 Technician Log-in (Optional) ................................................................. 15
4.2 Instrument Accessory Products......................................................................... 16
5.0 GA2000 RANGE INS RUMEN FEA URES ........................................................ 17
5.1 Physical Characteristics of the Instrument Panel ................................................. 17
5.2 Panel Key Functions ........................................................................................ 18
5.3 Instrument Connection Points .......................................................................... 19
6.0 GENERAL OPERA IONAL INS RUC IONS ....................................................... 20
6.1 Switching the Instrument On ........................................................................... 20
6.2 Switching the Analyser Off ............................................................................... 20
6.3 Warm-up Self-test .......................................................................................... 20
6.4 Keypad Lock .................................................................................................. 21
6.5 Instrument ain Gas Read Screen .................................................................... 21
6.6 Cold Start ...................................................................................................... 21
6.6.1 Perform a Cold Start .................................................................................. 21
6.7 Storage ......................................................................................................... 22
6.8 Battery/Charging ............................................................................................ 22
6.9 emory ......................................................................................................... 22
6.10 ain enu .................................................................................................. 23
6.10.1 Zero Transducer(s) ................................................................................. 23
6.10.2 Update Site Data .................................................................................... 24
6.10.3 Data Logging ......................................................................................... 24
6.10.4 View Data ............................................................................................. 25
6.10.5 Print Data ............................................................................................. 26
6.10.6 Adjust Contrast ...................................................................................... 26
6.10.7 Field Calibration ..................................................................................... 26
6.10.8 ode of Operation .................................................................................. 27

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6.10.9 Information Screen ................................................................................ 27
6.10.10 Operating Language ............................................................................ 27
6.10.11 Navigation .......................................................................................... 28
6.10.12 Exit enu ........................................................................................... 28
7.0 AKING READINGS ......................................................................................... 29
7.1 Preliminary Checks Before Taking Readings (Best Practice) .................................. 29
7.2 Update Site Data ............................................................................................ 30
7.3 How to Use an H
2
S Filter (Optional) .................................................................. 31
7.3.1 Cross Gas Effects on Chemical Cells ............................................................ 31
7.3.2 Cross Gas Effects on ethane, Carbon Dioxide and Oxygen ............................ 32
7.4 How to Use a Gas Pod (Optional) ...................................................................... 34
7.5 How to Use a Temperature Probe (Optional) ...................................................... 34
7.6 How to Use an Anemometer (Optional) ............................................................. 36
7.7 How to use the Internal Flow (Optional) ............................................................ 38
7.7.1 Zero Flow: ............................................................................................... 39
7.8 How to Use the GPS Feature (Optional) ............................................................. 40
7.8.1 GA2000 Range GPS Feature – Best Practice.................................................. 44
7.9 Taking Gas and Flow easurement Processes - Best Practice ............................... 45
7.9.1 Taking Gas easurement First with Borehole ID ........................................... 46
7.9.2 Taking Low Flow easurement First with Borehole ID .................................... 47
7.9.3 Taking Gas easurement First with No Borehole ID ....................................... 48
7.9.4 Taking Low Flow easurement First with No Borehole ID ............................... 49
7.9.5 Taking Low Flow easurement First Then Gas easurement .......................... 50
7.9.6 Taking Gas easurement First Then Low Flow easurement .......................... 51
8.0 CALIBRA ION ................................................................................................. 52
8.1 Calibration Introduction ................................................................................... 52
8.2 Calibration Gases ........................................................................................... 52
8.3 Calibration Set-Up .......................................................................................... 53
8.4 Calibration Equipment ..................................................................................... 54
8.5 Gas Analyser.................................................................................................. 54
8.6 Calibration ixture Processes – Best Practice ..................................................... 55
8.6.1 Low Level Calibration - ixture 1 ................................................................ 56
8.6.1.1 Span ulti Gas .................................................................................... 59
8.6.2 Low Level Calibration - ixture 2 ................................................................ 60
8.6.3 High Level Calibration - ixture 3 ............................................................... 64
8.6.4 Calibration of CO – ixture 100ppm ............................................................ 68
8.6.5 Calibration of H
2
Compensated CO – ixture CO 100ppm H
2
1000ppm ............ 69
8.7 Confirm Calibration ......................................................................................... 73
8.7.1 Confirm ulti-Gas ..................................................................................... 73
8.7.2 Confirm Channels Independently ................................................................ 73
8.8 Factory Settings ............................................................................................. 74
8.9 Last Field Calibration ...................................................................................... 74
8.10 Calibration Record ....................................................................................... 74
9.0 PROBLEM SOLVING ........................................................................................ 76
9.1 Warning and Error Display ............................................................................... 76
9.2 User Calibration Trouble Shooting ..................................................................... 77
10.0 SERVICE ...................................................................................................... 78
11.0 WARRAN Y POLICY ..................................................................................... 79
12.0 EVEN LOG .................................................................................................. 80
13.0 SAMPLE CER IFICA E OF CALIBRA ION ...................................................... 83

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14.0 IMPOR AN NO ICE O ALL CUS OMERS .................................................... 85
15.0 DECLARA ION OF CONFORMI Y – ENGLISH LANGUAGE .............................. 86
16.0 GA2000 RANGE GLOSSARY OF ERMS .......................................................... 87
17.0 APPENDICES – SAFE Y INS RUC IONS ....................................................... 94
17.1 Instructions for Safe Use – Italian Language ................................................... 94
17.2 Instructions for Safe Use – German Language ................................................. 99
17.3 Instructions for Safe Use – French Language .................................................. 104
17.4 Instructions for Safe Use – Spanish Language ................................................ 108

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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 Apr 2010 O GAN 1.38 New Instructions
LA Apr 2010 O GAN 1.41 New Instructions
LA ar 2012 O GAN 1.42 New Instructions
1.2 Safety Symbol
Information in this manual that may affect the safety of users and others is preceded by
the following symbol:
Warning
Failure to follow this information may result in physical injury which in some cases could
be fatal.
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 (UK) Limited
on [phone] or email techni[email protected]

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2.0 Introduction
This manual explains how to use the GA2000 range of landfill gas analysers for the following
model types below:
•
••
•GA2000
•
••
•GA2000 Plus
There are a number of versions of the GA2000 analyser, and several options. Where a section
in the manual applies only to some of the versions, this is indicated in the section heading.
 Note : Gas analysers are a sensitive piece of scientific equipment, and should be treated
as such.
2.1 Safety Instructions
Warning
The GA2000 range of gas analysers can be used for measuring gases
from landfill sites and other sources as described in this manual.
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.
2.2 Instructions for Safe Use – English Language
(Reference European ATEX Directive 94/9/EC, Annex II, 1.0.6.)
The following instructions apply to equipment covered by certificate numbers Sira
06ATEX2202X:
•The equipment may be used with flammable gases and vapours with apparatus
group IIA and temperature class T1.
•The equipment is only certified for use in ambient temperatures in the range 0ºC to
+40ºC and should not be used outside this range.
•Installation shall be carried out in accordance with the applicable code of practice by
suitably trained personnel.
•Repair of this equipment shall be carried out in accordance with the applicable code
of practice.
•The manufacturer will specify those materials which are important to the type of
protection.

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•When the GA2000 or GA2000 Plus methane detector is in the hazardous area it shall
only be externally attached via ‘Connector A’ (the half moon) to devices that are
marked with the certificate number Sira 06ATEX2202X.
•If the equipment is likely to come into contact with aggressive substances, e.g. 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.
he GA2000/GA2000 Plus Gas Analyser has been certified to Hazardous Area
Classification
II2G Ex ib d IIA 1 Gb ( a = 0ºC to +40ºC)
It is vital the instructions in this manual are followed closely.
It is the responsibility of the operator to determine the protection concept and
classification required for a particular application.
2.3 MCER S
CERTS is the UK Environment Agency's onitoring 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.
This certification does not apply to the GA2000 version. The GA2000 Plus version of this
instrument is CERTS certified only if:
•
••
•The CERTS logo appears on the screen after initial power on.
•
••
•The internal analyser Firmware software version is 3.02 or later.
 Note: CERTS - Cross sensitivity tests using hydrogen sulphide were not
carried out on this instrument. Therefore, users should be aware if H
2
S
is present on sites, there may be an interferent effect.
The GA2000 Plus has been certified to version 1 of the ‘Performance Standards for Portable
Emission onitoring Systems’.
 Note: Please refer to the Glossary of Terms for further information on CERTS.
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 afterwards to measure gas concentration.
Versions of the GA2000 range with internal analyser Firmware software version 3.02 and
above have the ability to take measurements according to the CIRIA guidelines, while still
allowing other users to take the measurements as before.

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3.0 he GA2000 Range Gas Analysers
3.1 he GA2000
The industry standard GA2000 is designed to meet landfill monitoring protocols set by
Government legislation. Utilised with dedicated software the GA2000 becomes an
extremely powerful detection, monitoring and change indicator tool.
Features:
•
••
•ATEX certified
•
••
•5 gases standard
•
••
•Peak CH
4
recording
•
••
•Simultaneous display of all gases
•
••
•Storage of site and ID questions
•
••
•Field proven
•
••
•Standardises monitoring routines
•
••
•Easy transfer of data
•
••
•Optional Internal Flow
•
••
•Optional Event Log
•
••
•Data storage 2000 readings and 1000 IDs
•
••
•0-500ppm H
2
S reading
•
••
•Technician Log-in
Main Application:
•
••
•Landfill sites
•
••
•Brownfield
•
••
•Site investigation

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3.2 he GA2000 Plus
The GA2000 Plus utilises new technology to give more reliable readings for carbon
monoxide (CO), helping to determine the presence of fires on landfill. It incorporates all
the existing technology and features of the industry standard GA2000.
Features:
•
••
•CERTS certified
•
••
•ATEX certified
•
••
•6 gas capability
•
••
•H
2
compensated CO reading
•
••
•Peak CH
4
and CO
2
•
••
•inimum O
2
•
••
•Reliable CO reading
•
••
•Optional Internal Flow
•
••
•Optional Event Log
•
••
•Data storage 2000 readings and 1000 IDs
•
••
•0-500ppm H
2
S reading
•
••
•Technician Log-in
Main Application:
•
••
•Landfill sites
•
••
•Brownfield
•
••
•Site investigation

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3.3 Instrument Components – Standard Product
GA2000 Plus
Reference:
A Gas Analyser Instrument (Diagram shows GA2000 Plus)
B GA2000 Range Operating anual
C In-line Water Trap Housing (tubing & filter)
D Temperature Probe (Optional)
E Gas Pod (Optional)
F H
2
S Filter (Optional)
G ains Battery Charger Adaptors:
Europe
US
Australia

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4.0 GA2000 Range Optional Products and Accessories
4.1 Optional Products
The GA2000 range 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 (UK) Limited on [phone] or email [email protected].
4.1.1 emperature Probe (Optional)
The GA2000 range has the facility to automatically display and record the borehole
temperature via an optional temperature probe.
When a temperature probe is fitted the temperature will be displayed in the ‘ ain Gas
Read Screen’ and recorded with all other data.
 Note: Temperature probes with an EEx label are part of the GA2000/GA2000 Plus Ex
certification and therefore certified for use under the same conditions as the
analyser.
4.1.2 Anemometer (Optional)
The GA2000 range has the optional 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. It adds flow measurements to the professional
reporting ability of the GA2000 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 80
o
C) and indicates flows up to 40
m/sec.
When an anemometer probe is fitted to the analyser the flow will be displayed in the
‘ ain Gas Read Screen’ and recorded with all other data.
Flow can be measured in either m/s (gas velocity) or m
3
/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 anager software.
 Note: The anemometer probe is NOT part of the analyser Ex certification and is
therefore NOT certified for use in a potentially explosive atmosphere. To use
the m
3
/hr option the firmware software within the analyser must be set at the
time of manufacture.
4.1.3 External Gas Pod (Optional)
The GA2000 range has a range of gas pod attachments enabling the site engineer to
safely monitor additional gases. The interchangeable electro-chemical sensors allow the
user to enhance the capabilities of the analyser. The lightweight and strong aluminium
pod construction ensures optimum performance.
The ATEX gas pod is ATEX certified for use in zone 1, is simple to plug in and is available
for H
2
S, CO, SO
2
, H
2
and HCN. The GA2000 can read external gas pods provided it does
not have the two internal cells fitted. The GA2000 Plus has the facility to read any

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external gas pod in addition to its internal chemical cells.
When a gas pod is fitted to the analyser the gas type and reading will be displayed in the
‘ ain Gas Read Screen’ and recorded with all other data.
 Note: When using an external pod with the same gas type as an internal cell the
external cell always overrides the internal. The same value will be displayed
and stored.
4.1.4 H
2
S Filter (Optional)
The GA2000 range has the capability to use a H
2
S filter. The H
2
S gas can have a cross-
gas effect on the CO reading. By using a filter the H
2
S 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 H
2
S might have on other gases. Do not use the filter on all boreholes.
4.1.5 Internal Flow (Optional)
The GA2000 range has the capability to measure the gas flow from a borehole without
the need for an additional flow pod. The user is automatically prompted to take this
measurement during the normal reading sequence. This function can be selected as ‘On’
or ‘Off’ for each ID using Gas Analyser anager. If it is off the user will not be prompted
to measure the flow.
4.1.6 Gas Analyser Manager – GAM (Optional)
Gas Analyser anager (GA ) enables the user to maximise the operation of the gas
analyser. It enables direct communication with the unit, it features a simple upload and
downloads facility and is fully compatible with the latest icrosoft™ operating systems.
Features:
•
••
•Organisation and transfer of 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.
•
••
•Email and FTP of downloaded readings.
•
••
•First time set-up wizard.
•
••
•Facility to import existing Datafield Comms data.
4.1.6.1 Event Log (Optional)
The GA2000 range incorporates the facility to log significant events performed on the
analyser via the ‘Event Log’. This can be used as an aid to monitoring the use of the
instrument and used as a diagnostic tool if there is a problem with the instrument.
The log can hold approximately 1000 events. Applicable events are stored in the event
log automatically. No user intervention is required. If the log becomes nearly full, a
warning will be given on the start up screen. If the log becomes full then no further
events will be stored.

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The log can be downloaded, viewed and cleared by using the Gas Analyser anager.
The log is also cleared when the analyser is cold started.
 Note: The event log cannot be viewed on the analyser screen and is only available
using Gas Analyser anager (GA ). Please contact the Sales Team at
Geotech (UK) Limited for more information.
The result is displayed as a table, giving target, factory and actual gas values. A typical
list of the events that are logged is included in ‘Section 13 - Event Log’ of this operating
manual.
4.1.6.2 GPS (Optional)
The GPS facility is available on all models of the GA2000 range. This facility enables the
site engineer to find boreholes automatically via satellite positioning where borehole IDs
have previously been uploaded from GA to the instrument. It also provides proof that
site borehole readings have been taken within the vicinity. The GPS data is stored for
each borehole ID and later downloaded back to GA for analysis.
 Note: Instruments manufactured after 05/02/2007.
4.1.6.3 echnician Log-in (Optional)
This facility allows the operating technician (site engineer) to log-in when the analyser
is switched on and to tag all subsequent readings with a four character technician ID.
The technician selects their ID/name from a pre-loaded list before proceeding to the
reading screen.
The list of IDs and names is created and uploaded into the instrument using Gas
Analyser anager. Once IDs have been created using GA , the user can create a new
four digit ID from the keypad by selecting ‘Key 5’ at the technician log-in screen.

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4.2 Instrument Accessory Products
Optional accessory and replacement parts may be purchased for the GA2000 range from
Geotechnical Instruments (UK) Limited direct. Please refer to the website
www.geotech.co.uk for further details on pricing and how to order.
Ref Description Mfr Order
Code
A In-line Water Trap Housing (complete with tubing & filter) GAA1.8
B
C
Water Trap with Barbed Filters (pack of 10)
Water Trap with Barbed Filters (pack of 30)
Water Trap Filters (pack of 10)
Water Trap Filters (pack of 30)
GA4.9
GA4.9(30)
GA4.2
GA4.2(30)
D ale Quick Coupling with Hose Barb (pack of 10) C10
E Sampling Tube 5m GA2.3
F Inlet Port Filters (pack of 10)
Inlet Port Filters (pack of 30) GA4.1 GA4.1(30)
G H
2
S Filters (pack of 5) GA6.5
H Regulator and Tubing for Calibration Gas
Calibration Gas Canister :
Please contact [email protected] for information on available
concentrations.
G1.1
I Battery Charger GA3.9/S
J USB Lead USBLEAD1
K Soft Carry Case GA5.1
L Gas Pod (various gas ranges available – please refer to website)
Hard Carry Case GA2.5
N ATEX Certified Temperature Probe GA5.2
O Anemometer GA5.4
P Gas Analyser anager (GA ) GA

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5.0 GA2000 Range Instrument Features
5.1 Physical Characteristics of the Instrument Panel
Front View: Reference:
Back View: Reference:
A ain Gas Read Screen
B Key 2 – Scroll Up
C Key 4 – Scroll Left
D Key 8 – Scroll Down
E Key 0 - Backlight
F On/Off Key
G Key 6 – Scroll Right
H Enter Key
I General Option Keys
J Pump/Backspace/
Delete Key
K Analyser odel
L Inlet Port Filter
Inlet Port Filter Cover
N Serial Number
O Product Option Number

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5.2 Panel Key Functions
Back Panel:
L Inlet Port Filter
The inlet port filter acts as a particulate filter.
Inlet Port Filter Cover Houses and protects the inlet port filter. Use a 50p coin to undo the cover when changing the
filter. Be careful not to overtighten when replacing
the cover.
N Serial Number
Unique identification for the instrument. Verification of the serial number will be required if
Technical Support assistance is needed.
O Product Option Number Records analyser internal configuration at the time
of manufacture.
Front Panel:
Keys Function
A ain Read Screen Start and end screen when using the instrument.
B
Scroll Up Key Also ‘Key 2’. Press scroll up to view further information on the instrument read screen.
C Scroll Left Key
Also ‘Key 4’. Enables the operator to scroll left to display more information.
D
Scroll Down Key
Also ‘Key 8’. Enables the operator to scroll down
to display more information.
E
Backlight Also ‘Key 0’. Enables the operator to backlight the analyser display panel. Also, the ‘Keypad Lock’
feature enables if pressed and held for 2 seconds.
F On/Off Key Press the ‘On/Off’ key briefly to switch the
instrument on and off.
G Scroll Right Key Also ‘Key 6’. Press scroll right to view further
information on the instrument read screen.
H Enter Key The ‘Enter’ key accepts/confirms choices made by
the operator to various functions and operations.
Also required to confirm numeric data entry.
I General Option Keys Keys 1, 2, 3, 4, 5, 6, 7, 8, 9
J Pump Key Press the ‘Pump’ key to start or stop the pump.
Also backspace and delete.
K Analyser odel Label displays model type of analyser, i.e. GA2000
or GA2000 Plus.

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5.3 Instrument Connection Points
Left Side View: Right Side View:
A
Left Side View:
Connector A (Half oon) Communications port used to attach the
USB lead for PC-to-analyser connectivity.
Also used to attach the temperature probe
and gas pod.
B Connector B Used to attach the mains charger to the
analyser for charging and also used to
attach an anemometer.
C Gas Outlet Port
(Yellow Port) The gas outlet port is the point at which the sample gas is expelled. Tubing may
also be attached to the port.
D Dust Caps Dust caps used to protect the connector
points of the instrument.
E
Right Side View:
Inlet Port Attach the sample tube to this port to take
a gas sample.
F
Flow easurement Port (Blue Port)
Attach the sample tube to this port to take
a flow measurement.

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6.0 General Operational Instructions
6.1 Switching the Instrument On
1) To switch on the analyser, press and hold down the ‘On/Off’ key. A long beep will be
emitted followed by the Geotech (UK) Limited logo display.
2) The ‘power on self-test’ will then commence. Refer to the message ‘Self-test mode,
please wait ….’ at the bottom of the analyser read screen.
3) Following the self-test, the ‘Service Information’ and reminder screen will be
displayed.
4) Select the ‘Enter’ key to take you to the ‘ ain Gas Read Screen’.
 Note: If the ‘Event Log’ feature is enabled - select the ‘Enter’ key to take you
to the technician log-in screen (optional) which is then followed by the
‘ ain Gas Read Screen’.
6.2 Switching the Analyser Off
1) To switch off the analyser, press and hold down the ‘On/Off’ key for approximately
1.5 seconds, at which point a clean air purge will be carried out.
2) If for any reason the analyser ‘locks up’ and will not switch off in this manner, press
and hold the ‘On/Off’ key for 15 seconds; this will force the instrument to switch off.
6.3 Warm-up Self-test
When switched on the read-out will perform a pre-determined self-test sequence taking
approximately 30-40 seconds depending on the types of chemical cells fitted.
During this time many of the analyser’s functions are tested, including:
•
••
•General operation
•
••
•Pump function
•
••
•Gas flow measurement
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•Calibration
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•Backlight function
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•Solenoid function
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•Battery charge level
During the self-test the following information is also displayed:
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•anufacturer’s service due date
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•The last gas check date
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•Software version programmed
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•Date format
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•Serial number
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•Operating language
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•Baud rate
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•The currently enabled sales option
 Note: The warm-up should only be done with the analyser sampling fresh air.