ION Tiger Select User manual

Tiger Select
Instrument User Manual V2.7R

Part number: 861489
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TIGER MANUAL Ion Science Ltd
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Contents
About this manual ........................................................................................................................................... 4
Statements ....................................................................................................................................................... 5
Responsibility of Use...................................................................................................................................... 5
Legal notice.................................................................................................................................................... 5
Caution........................................................................................................................................................... 5
Quality Assurance.......................................................................................................................................... 5
Disposal ......................................................................................................................................................... 5
Calibration Facility.......................................................................................................................................... 5
Introduction...................................................................................................................................................... 6
Lamp output..................................................................................................................................................... 7
Filter tubes ....................................................................................................................................................... 8
Start up ........................................................................................................................................................... 10
TAC mode.................................................................................................................................................... 10
Soft keys available within TAC mode........................................................................................................... 10
Single log ..................................................................................................................................................... 10
Multi log........................................................................................................................................................ 10
TAC.............................................................................................................................................................. 10
Tube mode................................................................................................................................................... 10
H&S function (STEL calculation).................................................................................................................. 11
Calibration...................................................................................................................................................... 12
Calibration type ............................................................................................................................................ 12
Frequency of calibration............................................................................................................................... 12
Demand and flow regulators........................................................................................................................ 12
Calibration routine........................................................................................................................................ 13
Calibration...................................................................................................................................................... 14
PID sensor access and batteries ................................................................................................................. 17
Parts list.......................................................................................................................................................... 18
Probe assembly ........................................................................................................................................... 18
Contact details............................................................................................................................................... 19
Manual log...................................................................................................................................................... 20

TIGER MANUAL Ion Science Ltd
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About this manual
This manual describes the function and operation of the Tiger® Select instrument. It is a supplement to the
standard Tiger user manual (part number: 861265)
Please read and understand both manuals completely before operating the Tiger Select instrument.

TIGER MANUAL Ion Science Ltd
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Statements
Responsibility of Use
Inadequate performance of the gas detection equipment described in this manual may not necessarily be
self-evident and consequently equipment must be regularly inspected and maintained. Ion Science Ltd
recommends that personnel responsible for equipment use a regime of regular checks prior to use to ensure
it performs within calibration limits, and that a record be maintained which logs calibration check data. The
equipment should be used in accordance with this manual, and in compliance with local safety standards.
Legal notice
Whilst every attempt is made to ensure the accuracy of the information contained in this manual, Ion Science
accepts no liability for errors or omissions, or any consequences deriving from the use of information
contained herein. It is provided “as is”and without any representation, term, condition or warranty of any
kind, either express or implied. To the extent permitted by law, Ion Science shall not be liable to any person
or entity for any loss or damage which may arise from the use of this manual. We reserve the right at any
time and without any notice to remove, amend or vary any of the content which appears herein.
Caution
It is essential that the Tiger Select is always used with a supplied PTFE 0.5 micron filter fitted to the front of
the instrument. Without a filter, particles of debris and dust can be drawn into the detector inhibiting the
function of the instrument. These filters are consumable and should be changed after every 100 hours of
use. The frequency of replacement should be increased for dusty or moisture laden environments. Filters
are available from your distributor or at ionscience.com .
Quality Assurance
Tiger Select has been manufactured in compliance with ISO9001:2008, which ensures that the equipment
supplied to our customers has been designed and assembled reproducibly, from traceable components, and
leaves Ion Science calibrated to stated standards.
Disposal
Dispose of Tiger Select, its components and any used batteries in accordance with all local and national
safety and environmental requirements. This includes the European WEEE (Waste Electrical and Electronic
Equipment) directive. Ion Science Ltd offers a take back service. Please contact us for more information.
The Tiger Select field case material is recyclable polypropylene.
Calibration Facility
Ion Science Ltd offers a calibration service including the issue of certification confirming calibration with
equipment traceable to national standards. A Tiger Select calibration kit is available from your distributor or
service centre or at ionscience.com . Ion Science recommends annual return of all instruments for yearly
service and calibration.

TIGER MANUAL Ion Science Ltd
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Introduction
Benzene gas is a carcinogen often associated with petrochemical processing but it is also used as a solvent
in the production of drugs, plastics, synthetic rubbers and dyes. Photo ionization detectors (PID) readily
detect a wide range of VOC gases of which includes benzene.
Gases that are cross sensitive to benzene will result in significant errors in reading which are unacceptable
when occupational exposure levels are set around 1ppm.
The Tiger Select has been developed to give an accurate and repeatable measurement of benzene gas
specifically to sub ppm levels.
The Tiger Select has two modes of operation; TAC mode which identifies the presence of Total Aromatic
Compounds (which include benzene), and Select mode which then identifies the specific benzene content.
This two stage approach avoids using filter tube unnecessarily; if there are no TAC gases present there is
also no benzene.
The Tiger Select uses a 10.0 eV light source so many
of the gases associated with benzene are ignored.
The remaining gases associated with benzene are
removed within a benzene pre-filter tube.
Note: n-butane, n-pentane, ethylene, propylene,
ethanol and ethyl acetate are not shown on this
illustration, however they are also beyond the
detection range of the 10.0 eV lamp so are not
detected.

TIGER MANUAL Ion Science Ltd
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Lamp output
The number of gases a PID can detectable directly relates to the maximum photon energy (units eV) of the
PID lamp being used. The higher the photon energy the more gases can be detected
Important
Always recalibrate the Tiger Select after servicing, particularly if the lamp or electrode stack is cleaned or
replaced.
10.6 eV lamp window
Additional 10.0 eV lamp window mounted in the electrode stack

TIGER MANUAL Ion Science Ltd
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Filter tubes
Benzene Pre filter tubes absorb many VOC gases however the benzene content passes through. The gas
sample must be drawn through the tube to condition it before the absorption level becomes stable. Please
see the leaflet supplied with the pack of tubes for maximum absorption levels.
Important
During the benzene measurement, the Yellow/Orange indicating layer turns brown or green in the presence
of other aromatic hydrocarbons and/or benzene hydrocarbons. If this colouring is longer than the ¾ marking,
the filter capacity of the tube is not sufficient anymore and the benzene display may not be accurate.
Benzene
Various VOC
gases
Direction of gas flow
¾marking
Tube holder

TIGER MANUAL Ion Science Ltd
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
Fitting the tube holder
Always ensure the filter tube is visible while viewing the display screen. If necessary the filter tube assembly
should be removed and refitted.
1. Unscrew and remove the Filter Cap.
2. Remove the filter clamp and tube holder together.
3. Place the O-ring on the filter lamp and push the
assembly in to the filter housing with the window facing
forward. Continual pressure may be required to keep the
assembly in place while tightening the filter cap.
The filter disk should be replaced if it appears dirty, or is disturbed from its seating position.
The filter disks can be fitted either way round however the orientation should never be reversed once used.

TIGER MANUAL Ion Science Ltd
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Start up
The Tiger Select will start up in either Standard running mode or TAC mode depending on the mode selected
when it was switched off.
Standard running mode
In Standard running mode the instrument has all the functionality of a standard Tiger instrument but with a
10.0 eV lamp selected. (See user manual part number: 861265).
This mode of operation has only 0,1 ppm sensitivity, no data log facility and no STEL / TWA calculations.
The instrument can be upgraded however to include the above features if required.
TAC mode
TAC mode automatically offers higher sensitivity, selects a response and allows data logging functionality.
Higher sensitivity down to 0.001 ppm benzene (RF 0.5) is automatically selected, no other gases are
selectable. The Tiger Select can be left in this mode even through a power cycle or battery replacement.
TAC mode can only be used when a 10.0 eV lamp is selected.
The 10.0eV lamp output helps filter out many VOC gases associated with benzene.
Soft keys available within TAC mode
Single log
Single point data log allows individual readings to be logged in memory, logged data can then be
downloaded to Tiger PC for review and analysis.
Multi log
Multiple data logging allows multiple readings to be logged in memory, logged data can then be downloaded
to Tiger PC for review and analysis. The frequency of the data log and other log settings must be setup on
the TigerPC configuration and sent to the instrument before use.
TAC
Pressing the TAC soft key simply enters and exits TAC mode.
Tube mode
Pressing the tube soft key simply enters tube mode
Please note: A tube calibration must be carried out before Tube mode can be used. The
following icon will appear until a Tube calibration is carried out. To carry out a tube
calibration see page 13. Tube mode is designed to identify the level of benzene gas after
TAC mode has identified a significant background. Unlike the other modes of operation
soft keys are unavailable during the Tube mode test.
IMPORTANT: When entering Tube mode the pump will stop until the test cycle begins. This is not a fault
condition.
This mode of operation has two parts; an initial single point reading followed by an optional STEL calculation
however both tests use the same pre-filter tube.
The initial benzene test has a test time which varies with temperature. This test time is required to condition
the tube which thereafter offer a proportional output relating to the benzene being sampled.
IMPORTANT
The TAC gas used within TAC mode has a STEL set to 1 ppm, this level has been chosen
based the low STEL levels often associated with Benzene vapour. The Tiger Select TAC
STEL however is not supported by nationally recognised bodies who publish official levels.