LANDTEC Geotech G100 Series User manual

Copyright Geotechnical Instruments (UK) Limited
G100 Range
Operating Manual
G100 CO2 0-20%
G110 CO2 0-100%
G150 CO2 0-10,000ppm
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

OMG100N1.21 G100 Range
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G100 Range OMG100N1.21
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Table of Contents
1.0 MANUAL GUIDELINES....................................................................................... 5
1.1 Document History............................................................................................. 5
1.2 Safety Related Information ................................................................................ 5
1.3 Notes.............................................................................................................. 5
2.0 INTRODUCTION .................................................................................................. 6
2.1 The G100 Analyser Range.................................................................................. 6
2.2 Instrument Components - Standard Product ........................................................ 7
3.0 G100 RANGE OPTIONAL PRODUCTS AND ACCESSORIES ................................... 8
3.1 Optional Products ............................................................................................. 8
3.1.1 Analyser Data Manager (Optional) ................................................................ 8
3.1.1.1 Event Log............................................................................................. 8
3.1.2 Temperature Probe Reading (Optional) .......................................................... 8
3.1.3 Humidity Probe Reading (Optional) ............................................................... 9
3.1.4 Oxygen Reading (Optional) .......................................................................... 9
3.2 Instrument Accessory Products......................................................................... 10
4.0 INSTRUMENT FEATURES................................................................................. 11
4.1 Physical Characteristics of the Instrument Panel ................................................. 11
4.2 Panel Key Functions........................................................................................ 12
4.3 Instrument Connection Points .......................................................................... 13
5.0 GENERAL OPERATIONAL INSTRUCTIONS .......................................................... 14
5.1 Switching the Instrument On ........................................................................... 14
5.2 Switching the Instrument Off ........................................................................... 14
5.3 Instrument Main Read Screen .......................................................................... 14
5.4 Instrument Status Icons.................................................................................. 15
5.5 Entering Data ................................................................................................ 15
5.6 Changing Between Parameters ......................................................................... 16
5.7 Memory......................................................................................................... 16
5.8 Storage......................................................................................................... 16
5.9 Main Menu..................................................................................................... 16
5.9.1 Information.............................................................................................. 17
5.9.2 Utilities.................................................................................................... 17
5.9.2.1 Time & Date ....................................................................................... 17
5.9.2.2 Contrast............................................................................................. 18
5.9.2.3 Alarms ............................................................................................... 19
5.9.2.4 Settings ............................................................................................. 19
5.9.2.5 Flow Fail ............................................................................................ 20
5.9.2.6 Logging.............................................................................................. 22
5.9.2.7 Reset ................................................................................................. 23
5.9.3 Calibration ............................................................................................... 23
5.9.4 View Data ................................................................................................ 23
5.9.4.1 Clear Reading Memory ......................................................................... 24
5.9.5 Diagnostics .............................................................................................. 24
5.10 Warning and Error Codes .............................................................................. 24
5.11 Battery/Charging ......................................................................................... 25
6.0 TAKING READINGS......................................................................................... 26
6.1 Preliminary Checks - Best Practice .................................................................... 26
6.2 Gas Measurement Process –Best Practice.......................................................... 27
6.3 Alternative Reading Methods............................................................................ 28
6.3.1 Logged Reading ........................................................................................ 28

OMG100N1.21 G100 Range
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6.3.2 Peak Reading ........................................................................................... 28
6.3.3 Hold Reading............................................................................................ 29
7.0 CALIBRATION................................................................................................. 30
7.1 User Calibration ............................................................................................. 30
7.2 Calibration Gases ........................................................................................... 30
7.3 Calibration Set-up .......................................................................................... 30
7.4 Calibration Equipment..................................................................................... 31
7.5 Calibration Method ......................................................................................... 31
7.5.1 Zero CO2Channel: .................................................................................... 32
7.5.2 Span CO2Channel: ................................................................................... 32
7.5.3 Zero O2Channel: ...................................................................................... 33
7.5.4 Span O2Channel: ..................................................................................... 33
7.5.5 Reset Factory Settings............................................................................... 33
7.6 Last Field Calibration ...................................................................................... 34
7.7 Calibration Record .......................................................................................... 34
8.0 PROBLEM SOLVING ........................................................................................ 35
8.1 Warnings and Errors ....................................................................................... 35
8.2 Flow Fail Warning ........................................................................................... 35
8.3 Self-test Warning Messages ............................................................................. 36
8.4 User Calibration Trouble Shooting..................................................................... 37
8.5 Cross-Gas Effects ........................................................................................... 39
8.6 Error Due to CO2Solubility in Water.................................................................. 39
8.7 Hardware Reset.............................................................................................. 39
9.0 SERVICE ......................................................................................................... 40
10.0 WARRANTY POLICY ..................................................................................... 41
11.0 EVENT LOG .................................................................................................. 42
12.0 SAMPLE CERTIFICATE OF CALIBRATION...................................................... 43
13.0 IMPORTANT NOTICE TO ALL CUSTOMERS .................................................... 44
14.0 EC DECLARATION OF CONFORMITY ............................................................. 45
15.0 GLOSSARY OF TERMS –G100 RANGE........................................................... 46

G100 Range OMG100N1.21
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1.0 Manual Guidelines
1.1 Document History
Issued
By
Issue
Date
Change
Control ID
Issue
No.
Reason for
Change
CAM
March 2014
CR898
1.21
Updated battery
performance and charge
times in section 5.11
Updated hardware reset in
section 8.7
1.2 Safety Related Information
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 Sales at Geotech (UK) Limited on
[phone] or email [email protected].

OMG100N1.21 G100 Range
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2.0 Introduction
This manual explains how to use the instrument model types listed below:
G100 CO20-20%
G110 CO20-100%
G150 CO20-10,000ppm
Note: The instrument is a sensitive piece of scientific equipment, and should be treated as
such.
Warning
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.
The G100 range has been developed to incorporate the latest technology and specification
requirements, which provide the user with a fast, simple-to-use and accurate analyser. Each
model has been specifically designed to meet specific application requirements. Apparatus
intended for use in residential, commercial, pharmaceutical and light industrial environments.
2.1 The G100 Analyser Range
The analyser has the following features:
CO20-20% - G100
CO20-100% - G110
CO20-10,000ppm –G150
Options for:
- O20-100%
- Dual temperature probes 0-50oC
- Data storage and download
- Humidity sensor 0-100%
Improved accuracy on CO2readings
Quick verification of CO2
Time saving with dual temperature probes
Large data storage and user friendly software and download
Easy-to-read, large well lit display
Built-in gas moisture removal

G100 Range OMG100N1.21
Copyright Geotechnical Instruments (UK) Limited Page 7
Applications:
IVF/Medical Research
Laboratories IAQ
Brewing Atmosphere Control
Incubators Gas mixing
2.2 Instrument Components - Standard Product
G100 Analyser
Reference:
A
Analyser
B
Operating Manual
C
Mains Battery Charger
D
Mains Battery Charger Adaptors:
Europe
US
Australia
E
Sample Tube Kit:
Sample Filter
Sample Tube

OMG100N1.21 G100 Range
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3.0 G100 Range Optional Products and Accessories
3.1 Optional Products
The G100 analyser 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].
3.1.1 Analyser Data Manager (Optional)
Analyser Data Manager enables the user to maximise the operation of the incubator
analyser. Instrument readings and event log data may be downloaded to a PC for further
analysis and exported to other applications such as MS Excel. It enables direct
communication with the unit, features a simple download facility and is fully compatible
with the latest Microsoft operating systems.
3.1.1.1 Event Log
The G100 instruments incorporate the facility to log significant events via the ‘Event
Log’. This can be used as an aid to monitoring the use of the instrument. It can also be
used as a diagnostic tool if there is a problem with the instrument.
The event log can only be viewed via the optional Analyser Data Manager software. It
cannot be viewed on the analyser screen. Applicable events are stored in the event log
automatically. No user intervention is required.
The event log can hold approximately 270 events. If the log becomes full then it begins
to over-write the older events. This can be identified by the index field which starts from
event number 1. The log is cleared when the instrument is reset.
Note: Please refer to section ‘12.0 Event Log’ of this operating manual for further
information.
3.1.2 Temperature Probe Reading (Optional)
The G100 range of instruments has the facility to read and display two temperature
readings via optional temperature probes. When a temperature probe is fitted to one of
the two temperature ports on the top of the instrument, the display will automatically
show the current reading and a temperature probe icon will be displayed.
The display can also be changed to show a T1–T2calculation by pressing the appropriate
soft-key. The current mode of operation can be identified by normal or inverse status of
the soft-key, where inverse indicates that the option is active.
Note: The T1–T2result is not stored as part of the reading.
The operator can also choose to display the reading in either Centigrade or Fahrenheit
using the temperature option accessed from the ‘Settings’ menu.

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3.1.3 Humidity Probe Reading (Optional)
The instrument has the optional facility to use a humidity probe (specified at the time of
manufacture). This allows the instrument to read and display humidity readings from an
optional probe.
When a humidity probe is fitted, the display will change automatically to show the
current reading and a humidity probe icon will be displayed. The ‘Scroll’ keys on the
instrument panel are used to switch between the reading screens.
The humidity kit comprises of:
Humidity lead
Humidity sensor
Connection of the Humidity Sensor:
Plug the humidity sensor onto the mating connector of the transmitter or connection
cable. Make sure that the catches are aligned correctly. Tighten the knurled nut by
hand.
Note: The humidity sensor can take 30 minutes to stabilise and special handling is
required for optimum performance and stability. Please refer to the instruction
leaflet included with the humidity sensor packaging for the Humidity Standards.
3.1.4 Oxygen Reading (Optional)
The instrument has the optional facility to use an internal oxygen cell (specified at the
time of manufacture). This allows the instrument to read and display oxygen readings
along with CO2.
Note: Oxygen sensor stability; as the sensor is a partial pressure sensor its output
will be affected by changes in relative humidity. Although the percentage of O2
in the air is relatively constant, the relative humidity in air is variable. A unit
calibrated with dry air could cause the readout to read low by up to 0.5% by
volume.

OMG100N1.21 G100 Range
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3.2 Instrument Accessory Products
Optional accessory and replacement parts may be purchased for the G100 from Geotech
(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
USB Lead
USBLEAD2
B
Spare Sample Filters (pack of 5)
068296/S
C
Sample Tube Kit
G1.6
D
Hard Carry Case
050227
E
F
Temperature Probe 100mm Tip
Temperature Probe 5mm Tip
G1.3
G1.2
G
H
I
Humidity Kit:
Probe 4mm Stainless Tip with Cable
Humidity Lead and Sensor
Humidity Sensor Only
G1.9
G1.8
G1.7
J
Moisture Trap (pack of 2)
G1.12
K
Spare Calibration Gas 5% CO2
CDA7.6
L
Mains Charger including Worldwide Adaptors
073024
M
Soft Carry Case
G1.11
N
Soda Lime Filter Kit
G1.10
O
Analyser Data Manager Software
G1.4
P
Regulator and Tubing for Calibration Gas
G1.1