Crowcon T4 User manual

Personal Gas Detection Equipment
T4 User & Operator Manual
T4
Portable Multigas Detector
M070044/Eng
Issue 4 Nov 2016
Click here for
contents
list
Click here
for navigation
instructions

NAVIGATION INSTRUCTIONS
The symbols in the left-hand margin of each page of the manual will enable you to carry out the
following functions:
Click on this button to display the Contents page.
Click on this button to display the previous page.
Click on this button to display the next page.
Click on this button to display the previous view (use it to return from a reference jump).
Click on this button to display next view (use it to return to a reference jump).
Click this button to print some or all of the document (specic pages can be chosen).
Exit
Click this button to exit the User and Operator Manual.
! Press the Esc key to display normal Acrobat©Controls.
Contents
Contents

3
CONTENTS
PROLOGUE .............................................6
T4 Overview ....................................................6
Safety Information........................................7
Unpacking .............................................10
1. Set-up ..............................................12
1.1 Prior to use.................................................12
1.2 T4 orientation...............................................12
1.3 Charging & battery indications ................................13
1.4 Fitting the calibration/bump test plate ..........................15
1.5 Fitting the external lter plate .................................16
1.6 +ve Safety™ ................................................17
1.7 Quick view .................................................18
2. Operation ...........................................21
2.1 Turning on .................................................21
2.2 Home screen ...............................................24
2.3 Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.3.1 Low battery alarm .......................................25
2.3.2 Instantaneous alarm .....................................25
2.3.3 Short term exposure limit alarm (STEL) .....................26
2.3.4 Time weighted average alarm (TWA)........................26
2.3.5 TWA Resume function*...................................26
2.4 Alarm and status icons .......................................27
2.5 Accepting and Clearing Alarms ................................28
Exit

4
2.6 Sensors ...................................................29
2.6.1 Oxygen sensor .........................................29
2.6.2 Electro-chemical sensors ................................29
2.6.3 Pellistor sensors .......................................30
2.6.4 Pellistor saver mode ....................................30
2.7 T4 menu icons ..............................................31
2.8 Accessing T4 menu functions .................................32
2.8.1 Home screen ...........................................32
2.8.2 Information Screen ......................................32
2.8.3 Manual zero ............................................33
2.8.4 Peak Mode .............................................34
2.8.5 Bump Test .............................................35
2.8.6 Calibration .............................................37
2.8.7 STEL (Short term exposure limit) ..........................39
2.8.8 TWA (Time weighted average) .............................39
2.8.9 Shutdown .............................................39
2.9 Data Logging ...............................................40
2.10 Event logging..............................................40
2.11 Bump Test ................................................41
2.12 Calibration ................................................42
2.13 New sensor calibration/service ...............................42
2.14 T4 Aspirator Plate ..........................................43
3. Service and maintenance ..............................45
4. Specication .........................................46
Exit

5
5. Accessories .........................................47
6. Troubleshooting ......................................48
6.1 T4 Fault / Warning / Information Descriptions ....................48
6.1.1 Service Faults ..........................................48
6.1.2 Fault/Warning/Information Messages .......................48
7. Appendices ..........................................55
7.1 Sensor Limitations ..........................................55
7.2 Crowcon contacts ...........................................56
Warranty ...............................................57
Exit

6
PROLOGUE
T4 Overview
Thank you for purchasing T4. At Crowcon we recognise the need for reliable and robust personal
monitors which are sized to be worn and simple to use.
T4 is a portable monitor capable of detecting up to 4 gases in a compact and wearable design. Focused
on users and eet managers alike, T4 offers application focused solutions giving greater operating time
and reduced set up time.
T4 is classied for use in hazardous areas and gives loud and bright audible and visual alarm indications
as well as a vibrate alert. The front mount display is backlit for ease of use, and the simple single button
solution makes using and training quick and easy.
Contents
Exit
Prologue
Operation
Maintenance
Specication
Accessories
Troubleshooting
Appendices
Warranty
Set-up

7
Safety Information
• T4 is a hazardous area certied gas detector and as such must be operated and maintained in
strict accordance with the instructions, warnings and label information included in this manual.
T4 must be operated within the limitations stated.
• Read and understand all instructions in the operation section of this manual prior to use.
• Before use ensure that the equipment is in good condition, the enclosure is intact has not been
damaged in any way.
• If there is any damage to the equipment do not use, contact your local Crowcon ofce or agent
for repair/replacement.
• Do not disassemble or substitute components as this may impair intrinsic safety and invalidate
safety certication.
• Only genuine Crowcon replacement parts must be used; substitute components may invalidate
certication and warranty of the T4 and accessories, reference “Service and Maintenance”
section for details.
• No live maintenance is permissible.
• Observe all warnings and instructions marked on the unit and within this manual.
• Observe site health and safety procedures for gases being monitored and evacuation
procedures.
• Understand the screen display and alarm warnings prior to use.
• If this product is not working properly, read the troubleshooting guide and/or contact your local
Crowcon ofce or agent, for details reference the ‘Crowcon Contacts’ section of the manual
• Ensure maintenance, service and calibration is carried out in accordance with the procedures in
the manual and only by trained personnel.
Charging & Communication (Um = 9.1V)
• The T4 re-chargeable battery must only be charged in non-hazardous (safe) areas.
• Only connect to T4 in a safe area for charging or communications.
• T4 must not be charged or have communication to the device, at ambient temperatures outside
the range 0°C to +40°C.
• T4 has been certied and marked Um = 9.1V therefore, if charging T4 via the T4 Charger
Cradle use only Crowcon supplied AC Adaptor. Otherwise this may impair intrinsic safety and
invalidate safety certication.
• T4 has been certied and marked Um = 9.1V therefore, if charging T4 via the T4 10 way
charger use only Crowcon supplied AC Adaptor. Otherwise this may impair intrinsic safety and
invalidate safety certication.
Contents
Exit
Prologue
Operation
Maintenance
Specication
Accessories
Troubleshooting
Appendices
Warranty
Set-up

8
• Alternative charging and communication cable assemblies types “power cable”, “communication
cable”, “power and communication cable”, “vehicle power cable”, ”cradle power and
communications” and “cradle charger“ are suitable for use with T4.
• Refer to Power & Communication Cables Technical Data” manual (M07996) for further details.
• These devices are intended for use in normal atmospheric conditions of temperature –20 °C
to +55 °C; pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and air with normal oxygen content,
typically 21 % v/v (volume/volume).
• T4 ‘Type 2’ (as indicated on the certication label) may be used in Zones 1 and 2, for Group
llA, llB and llC gases and vapours and for Temperature Classes T1, T2, T3 and T4. (see
Certication label below).
Certication label
The certication marking is as follows:
• T4 is certied for use in ambient temperatures in the range -20°C to +55°C (-4 to 131°F).
IECEx
IEC 60079-0:2011 6th Edition
Electrical apparatus for explosive gas atmospheres Part 0: General requirements
IEC 60079-11:2011 6th Edition
Explosive atmospheres - Part 11: Equipment protection by intrinsic safety “i”
Ex d ia IIC T4 Gb Tamb -20°C to +55°C (T4 Type 2)
IECEx ULD 15.0002X
1180
II 2 G
0038/
Um = 9.1V
6.5V Class 2
Ex d ia IIC T4 Gb -20°C ≤ Ta ≤ +55°C
172 BROOK DRIVE
MILTON PARK
ABINGDON
OX14 4SD
UNITED KINGDOM
Made in the UK
WARNING: DO NOT CHARGE THE BATTERY OR
CONNECT TO THE EQUIPMENT IN A HAZARDOUS
LOCATION. USE RECOMMENDED CHARGER ONLY.
READ & UNDERSTAND THE MANUAL BEFORE USE.
DEMKO 15 ATEX 1411
IECEx ULD 15.0002X
1180
II 2 G
Um = 9.1V
6.5V Class 2
Ex d ia IIC T4 Gb -20°C ≤ Ta ≤ +55°C
172 BROOK DRIVE
MILTON PARK
ABINGDON
OX14 4SD
UNITED KINGDOM
Made in the UK
WARNING: DO NOT CHARGE THE BATTERY OR
CONNECT TO THE EQUIPMENT IN A HAZARDOUS
LOCATION. USE RECOMMENDED CHARGER ONLY.
READ & UNDERSTAND THE MANUAL BEFORE USE.
66Y6
DEMKO 15 ATEX 1411
IECEx ULD 15.0002X
GAS DETECTOR FOR USE IN HAZ LOCS,
ONLY AS TO INTRINSIC SAFETY
CL I, GR A, B, C & D: T4, -20°C ≤ Ta ≤ +55°C
Contents
Exit
Prologue
Operation
Maintenance
Specication
Accessories
Troubleshooting
Appendices
Warranty
Set-up

9
ATEX
EN 60079-0: 2012 + A11:2013
Explosive atmospheres – Part 0: Equipment - General requirements
EN 60079-11:2012
Explosive atmospheres - Part 11: Equipment protection by intrinsic safety “i”
II 2 G Ex d ia IIC T4 Gb Tamb -20°C to +55°C (T4 Type 2)
DEMKO 15 ATEX 1411
UL
Gas detector use in hazardous locations Class 1 Division 1, Groups A, B, C and D only as to
intrinsic safety.
UL 913 Applicable Edition of the UL standard
UL 60079-0:2013 Applicable Edition of the UL standard
UL 60079-11:2013 Applicable Edition of the UL standard
Contents
Exit
Prologue
Operation
Maintenance
Specication
Accessories
Troubleshooting
Appendices
Warranty
Set-up

10
Unpacking
Your T4 will have been inspected and quality checked before it left our manufacturing facility.
It will be congured as a standard unit with standard settings as shown in the table below and
any changes to suit your specic site requirements can be made utilising Portables Pro 2.0 PC
Application and the Communications Cable, part number CH0103.
T4 Standard Conguration Settings:
Alarm levels/type* H2S (Hydrogen Sulphide)
Low Alarm = 5 PPM
Rising alarm
Latched
High Alarm = 10 PPM
Rising alarm
STEL = 10 PPM
TWA = 5 PPM
CO (Carbon Monoxide)
Low Alarm = 30 PPM
Rising alarm
Latched
High Alarm = 100 PPM
Rising alarm
STEL = 100 PPM
TWA = 30 PPM
Rising alarm
Latched
O2(Oxygen)
Low Alarm = 19% Vol
Falling
Latched
High Alarm = 23.5% Vol
Rising
LEL
Low Alarm = 20%
Rising alarm
Latched
LEL (CH4)
Rising alarm
High Alarm = 40% LEL (CH4)
(all T4s are shipped having been calibrated with 2.2% Vol CH4)
Contents
Exit
Prologue
Operation
Maintenance
Specication
Accessories
Troubleshooting
Appendices
Warranty
Set-up