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instrument will use current zero values instead and
proceed to the monitoring screen.
Note:
DDiissppllaayy SSccrreeeenn
With no alarm conditions, the
display will typically show as on
the image.
The gas sensor and their respective
units are displayed, complete with
a battery gauge monitor at the bottom. For an instrument
fitted with less than four sensors, each unused sensor
position will show ‘---’.
Several data screens are available and these can be viewed
by pressing the and buttons to cycle through. The
symbol in the centre of the screen will identify which
screen is active.
IDENTIFIER
GETTING STARTED
FFoorr aaddvviiccee oonn tthhee ssaaffeettyy aanndd ssuuiittaabbiilliittyy ooff tthhiiss eeqquuiippmmeenntt
ccoonnttaacctt yyoouurr llooccaall HHSSSS HHiirree..
TThheerree iiss aa s
seerriioouuss rriisskk ooff ppeerrssoonnaall iinnjjuurryy iiff yyoouu ddoo nnoott
ffoollllooww aallll iinnssttrruuccttiioonnss llaaiidd ddoowwnn iinn tthhiiss gguuiiddee..
TThhee hhi
irreerr hhaass aa rreessppoonnssiibbiilliittyy ttoo eennssuurree tthhaatt aallll nneecceessssaarryy
rriisskk aasssseessssmmeennttss hhaavvee bbeeeenn ccoommpplleetteedd pprriioorr ttoo
tthhee uussee ooff
tthhiiss eeqquuiippmmeenntt..
TThhiiss eeqquuiippmmeenntt sshhoouulldd oonnllyy bbee uusseedd bbyy aann ooppeerraattoorr wwhhoo
hhaass bbeeeenn ddeeeemmeedd ccoom
mppeetteenntt ttoo ddoo ssoo bbyy hhiiss//hheerr
eemmppllooyyeerr..
TThhiiss eeqquuiippmmeenntt mmaayy bbee uusseedd iinn aa wwoorrkkppllaaccee ssuubbjjeecctt ttoo aa
ppeerrmmiitt t
too wwoorrkk,, iitt iiss tthhee hhiirreerr''ss rreessppoonnssiibbiilliittyy ttoo eennssuurree
tthhaatt tthhee eeqquuiippmmeenntt’’ss tteecchhnniiccaall ssppeecciiffiiccaattiioonn mmeeeet
tss tthhee
rreeqquuiirreemmeennttss ooff aannyy ssuucchh ppeerrmmiitt ttoo wwoorrkk pprriioorr ttoo ssttaarrttiinngg
wwoorrkk..
For further technical information contact your
local HSS Hire.
TThhiiss eeqquuiippmmeenntt sshhoouulldd bbee uusse
edd bbyy aann aabbllee bbooddiieedd,,
ccoommppeetteenntt aadduulltt wwhhoo hhaass rreeaadd aanndd uunnddeerrssttoooodd tthheessee
iinnssttrruuccttiioonnss..
Anyone with either a temporary or permanent
disability, should seek expert advice before using it.
This equipment has been designed to alert the user to
potentially hazardous atmospheres whilst carrying out
his/her normal duties. Therefore,
tthhee iinnssttrru
ummeenntt mmuusstt bbee
kkeepptt sswwiittcchheedd oonn aanndd wwoorrnn aass cclloossee ttoo tthhee bbrreeaatthhiinngg
aarreeaa aass ppoossssiibbllee..
KKeeeepp cchhiillddrreenn,, aan
niimmaallss aanndd bbyyssttaannddeerrss aawwaayy ffrroomm tthhee wwoorrkk
aarreeaa.. CCoorrddoonn ooffff aa NNOO GGOO aarreeaa uussiinngg ccoonneess aanndd eeiitthheerr
bbaarrrriieer
rss oorr ttaappee,, aavvaaiillaabbllee ffoorr hhiirree ffrroomm yyoouurr llooccaall HHSSSS HHiirree..
NNeevveerr uussee tthhiiss eeqquuiippmmeenntt iiff yyoouu aarree iillll,, ffeee
elliinngg
ttiirreedd,, oorr uunnddeerr tthhee iinnfflluueennccee ooff aallccoohhooll oorr
ddrruuggss..
WWeeaarr sseennssiibbllee,, ssuuiittaabbllyy pprrootteeccttiivvee ccllootthhiinngg
aanndd ffoooottwweeaarr
pplluuss aannyy ssaaffeettyy wweeaarr aapppprroopprriiaattee ttoo tthhee wwoorrkk iinn pprrooggrreessss..
MMaakkee ssuurree yyoouu kknnooww hhooww ttoo ooppe
erraattee tthhiiss eeqquuiippmmeenntt
ssaaffeellyy aanndd aarree aawwaarree ooff iittss lliimmiittaattiioonnss bbeeffoorree yyoouu uussee iitt..
RReemmeemmbbeerr tthhaatt tthhiiss eeq
quuiippmmeenntt ddooeess nnoott gguuaarraanntteeee lliiffee
pprrootteeccttiioonn bbuutt iiff uusseedd ccoorrrreeccttllyy iitt wwiillll hheellpp pprroovviiddee aa ssaaffeerr
eennvviirro
onnmmeenntt ttoo wwoorrkk iinn..
Make sure that anyone in the immediate work area is
warned of what you are doing.
CChheecckk tthhee ccoonnddiittiioonn ooff tthhee eeqquuiippmmeenntt
before use. If it
shows signs of damage or excessive wear, return it to
your local HSS Hire.
GENERAL SAFETY
The Four Gas Detector is a compact, portable gas monitor
designed to be carried or worn without hindering the user. Its
purpose is to monitor the atmosphere continuously for
hazardous levels of four gases: Carbon Monoxide, Hydrogen
Sulphide, Methane and Oxygen enrichment / deficiency.
INTRODUCTION
TToo ttuurrnn tthhee iinnssttrruummeenntt OONN,,
press the button until the
instrument activates its audible and visual alarms. It will
follow the start-up sequence. Once switched ON, the
personal gas detector will run through a series of
automatic self-tests.
Once the self-tests have been successfully completed, the
display will switch to normal operation to give a constant
read-out of the four gas concentrations.
TToo ttuurrnn tthhee iinnssttrruummeenntt ooffff,,
press and hold the button
for three seconds, until it switches off.
BASESTATION
PPoorrttaabbllee FFoouurr GGaass DDeetteeccttoorr hhaass bbeeeenn ddeessiiggnneedd ffoorr
ddeetteeccttiioonn ooff ooxxyyggeenn aanndd 33 ootthheerr ggaasseess ..
AAnn aallaarrmm iinnddiiccaattiinngg tthhee pprreesseennccee ooff oonnee oorr mmoorree ooff
tthheessee ppootteennttiiaallllyy lliiffee--tthhrreeaatteenniinngg hhaazzaarrddss sshhoouulldd bbee
ttaakkeenn sseerriioouussllyy
IInn tthhee eevveenntt ooff aann aallaarrmm ccoonnddiittiioonn,, iitt iiss iimmppoorrttaanntt ttoo
ffoollllooww pprroocceedduurreess,, ddiirreecctteedd bbyy llooccaall oorr nnaattiioon
naall
eessttaabblliisshheedd pprroocceedduurreess oorr rreegguullaattiioonnss..
ELECTRICAL SAFETY
TThhiiss eeqquuiippmmeenntt iiss ppoowweerreedd bbyy aa ssppeecciiaall bbaatttteerryy,,
which may be
recharged using the charger provided. The charger is designed
to plug into a standard 230V 13A power socket.
To recharge the unit please see “MAINTAINING POWER
SOURCES”
NNeevveerr uussee tthhee cchhaarrggeerr oorr cchhaarrggee tthhee bbaatttteerryy iinn aa
pp
ootteennttiiaallllyy eexxpplloossiivvee aattmmoosspphheerree..
Keep the equipment dry - using electrical equipment in
very damp or wet conditions can be dangerous.
To reduce the risk of electric shock, use a suitable
RCD (Residual Current Device) available from your
local branch of HSS Hire.
Keep the charger and its power supply cable out of
harm’s way. Never carry or pull the charger by its power
supply cable.
If the charger fails, or if its power supply cable or plug
gets damaged, return it. Never attempt to repair it
yourself.
Locking Lip
Rear Locking Catch
Charger Socket
OPERATING INSTRUCTIONS
This is a “soft” zero. Any adjustments only remain in force whilst
the instrument is switched on.
1. Oxygen
2. Methane
3. Carbon Monoxide
4. Hydrogen Sulphide
2
1
3
4
5
6
7
9
8
1. Buttons
2. Aperture
3. Cartridge and Filter Cover
4. Audible Aperture
5. Grille Cover Screw
6. Certification Label
7. Battery Covers
8. Data Connector
9. Tool
(yellow) Moves up
through menu screens,
and used to increase
values
(yellow) Moves down
through menu screens,
and used to decrease
values
(green) Used as ‘OK’
in menus. Accepts
alarms, and resets peek
values
(red) On/Off button.
Also used as ‘change’ in
menus
SSeelleeccttiinngg LLooccaattiioonn // OOppeerraattoorr
To change the location and/or operator press the button
and the display will show the current location. Press the
and buttons to cycle through the list. Once the
correct location has been found then press , and
follow the same procedure to select the operator.
FFrreesshh AAiirr AAuuttoo ZZeerrooiinngg SSeennssoorr
If enabled the instrument will prompt if
you wish to zero the sensor in fresh air,
to adjust for any natural drift that may
have occurred. If the button is
pressed the instrument will then ask the user to ensure
that it is being zeroed in fresh, uncontaminated air.
If the button is pressed the
instrument will zero the sensors
automatically, and display wether the
procedure was successful. The
Oxygen reading will be adjust to 20.9%v/v - the other
sensor readings will be adjust to 0ppm and 0%lel
appropriately. If the button is pressed instead the
Peak Screen
(( ))
This symbol is displayed when the
instrument is displaying the peak
readings for the sensors, i.e. the
highest readings seen since the
instrument was switched on or
since they were reset. This is useful for pre-entry checks for
confined space entry. These readings can be reset by
pressing the button whilst this display is shown.
This screen will alternate with a screen showing the
minimum value of oxygen. In this case the is replaced
by .
STEL Screen
(( ))
This symbol is displayed when the
instrument is displaying the STEL
readings for the toxic sensors. The
STEL is a time weighted average,
measure over a 15 minute
reference period. It is used to monitor exposure to toxic
gases in line with current regulations and/or legislation.
Until 15 minutes has elapsed these are projected values.
LTEL Screen
(( ))
This symbol is displayed when the
instrument is displaying the LTEL
(TWA) reading for toxic sensors.
The LTEL is a time weighted
average, measured over an 8
hour reference period. It is used to monitor exposure to
toxic gases in line with current regulations and/or
legislation. Until the gas detector has been monitoring
continuously for 8 hours these are projected values.
CCoonnffiiddeennccee SSiiggnnaall
To ensure correct operation, the instrument monitors
itself and will confirm correct operation by giving an
audible and green visual confidence signal once every
30 seconds. There is a configurable option to silence the
audible confidence signal, but the visual confidence
signal will continue to operate. If the instrument is in a
low battery condition, the confidence signal will occur
twice every 30 seconds.
MMeennuu
Pressing the button will provide access to menu.
Note:
Calibration is not permitted until the sensor/s have warmed up and
been self-tested. If you access the user menu before this period has
elapsed the Calibration option will not be available.
Flammable
Calibration
Operator
Instrument
Safelink
Language
User Menu
FFllaammmmaabbllee
TThhee iinnssttrruummeenntt iiss lliimmiitteedd oonnllyy ttoo MMeetthhaannee
. If you require
any other gases than Methane please contact HSS Hire.
Operator
This allows a new operator and/or location to be
selected without restarting the instrument.
Instrument Details
These are the alarm level setting
for oxygen and flammable
sensors. There are no associated
STEL or LTEL alarms for this
sensors. indicates a rising
alarm indicates a falling alarm.
This shows the alarm level for the
toxic sensors.
AAllaarrmm CCoonnddiittiioonn
There are two modes of alarm: latching and
non-latching. However, the display will give the same
alarm indication:
An alarm symbol will appear in the
relevant section of the display. The
alarm symbol contains a number,
indicating the increasing severity of
the alarm, with increasing
frequency of the audible and visual alarms. If there is a
STEL / LTEL alarm the relevant icon will appear and flash.
Any alarm will cause the backlight to be switched on
automatically.
10
20
50
8
5
25
10
200
50
500
400
40
35
10