SENSEPOINT
MAN0513.P65 Issue 06 - 04/99
2106M0501
SensePoint LEL
Combustible Sensor
1. INTRODUCTION
SensePoint is a sealed disposable sensor for the detection
of flammable gases and is designed for use with an
approved junction box.
It employs a catalytic pellistor sensor device which is used
as part of a bridge measuring circuit.
Sensepoint is certified for hazardous areas to EN50018
and is protected against water and dust ingress to IP66/67.
The sensor is available in M20, M25, M26 or 3/4 NPT
thread versions. All accept accessories from the specified
range.
2. ASSOCIATED DOCUMENTATION
2106M0502 SensePoint Technical Handbook.
Refer to the relevant control system manual for connection
information.
1. INTRODUCTION & 2. ASSOCIATED DOCUMENTATION
CONTENTS
1. INTRODUCTION ...................................................... 2
2. ASSOCIATED DOCUMENTATION ......................... 2
3. SAFETY ....................................................................
3
3.1 Warnings ........................................................... 3
3.2 Cautions ............................................................. 3
4. OPERATIONS ..........................................................
4
4.1 Installation ......................................................... 4
4.2 Calibration ......................................................... 5
4.3 Fault finding ....................................................... 9
5. MAINTENANCE ..................................................... 10
5.1 Changing filters .................................................9
Appendix A - Specifications ....................... 11
Appendix B - Glossary ............................... 12
Appendix C - Main features ....................... 13
Appendix D - Spare parts ........................... 14
1 2
11
12
13 14
APPENDIX C - MAIN FEATURESAPPENDIX A - SPECIFICATIONS APPENDIX D - SPARE PARTSAPPENDIX B - GLOSSARY
Operating temperature range:
-55°C to +80°C (see certification).
Operating humidity range:
20% to 90% RH continuous.
10% to 99% RH intermittent - non condensing.
Operating pressure range:
90 to 110 k Pa.
Warm up time:
no greater than 10 minutes.
Voltage range:
2.9 V to 3.5 V bridge (at 200mA).
Power consumption:
700mW.
Signal output:
mV bridge.
Calibration flow rate:
recommended between 1 and 1.5 l/min.
Poisoning:
the sensing elements may become inactive after
extensive exposure to silicones, halogenated
hydrocarbons, heavy metals or sulphur compounds.
Expected operating life:
5 years.
IP rating:
IP65 standard; IP66/67 with weather protection.
Certification:
Ex II 2G EExd IIC T6 -55 to +55°C.
Ex II 2G EExd IIC T5 -55 to +70°C.
Ex II 2G EExd IIC T4 -55 to +80°C.
BAS98ATEX2156X.
UL approved via IEC 79 (pending).
This product complies with the relevant CE standards
concerning performance: EMC to BS EN50081 parts 1 & 2,
BS EN50082 parts 1 & 2 and EN 50054.
Explosive gas atmosphere:
a mixture in air of combustible materials in the form of gas
vapour or mist in which, after ignition, combustion spreads
throughout the unconsumed mixture.
Lower explosive limit (LEL):
the volume of combustible gas or vapour in air below which
an explosive gas atmosphere will not be formed.
Exd:
flame proof or explosion proof within the confines of European
standards EN50014 and EN50018. An enclosure that can
withstand the pressure developed during the internal
explosion of an explosive mixture and which prevents
transmission of the explosion to the explosive atmosphere
surrounding the enclosure.
Exe:
increased safety within the confines of European standards
EN50014 and EN50019 applied to electrical apparatus that
does not produce arcs or sparks in normal service, in which
additional measures are applied so as to give increased
security against the possibility of excessive temperatures.
PPS:
polymer polyphenylene sulphide, suitable for use in most
chemical environments (eg acids, aldehydes, ketones,
alkalies, petroleum, aromatic hydrocarbons, alcohols, ethers,
esters and most chlorinated hydrocarbons). Avoid immersion
in solvents for extended periods. For further details contact
Zellweger Analytics Ltd.
Sensor ....................................................... 2106B1200 (M20)
Sensor ....................................................... 2106B1201 (M25)
Sensor ....................................................... 2106B1202 (M26)
Sensor ....................................................... 2106B1204(3/4 NPT)
Weather protection ................................... 02000-A-1640
Sensor filter ............................................... 00780-F-0018
Flow housing ............................................. 02000-A-1645
Collecting cone ......................................... 02000-A-1642
Junction box (std) ..................................... 00780-A-0100
High temperature junction box ................. 555-090-038
High temperature weather protection ...... 00780-A-0076
To reorder a complete new sensor, see the label on the
product leads, or contact Zellweger Analytics Ltd.
103mm
Standard Zellweger
Analytics junction box
threads available:
M20; M25; M26; 3/4” NPT.
SensePoint Combustible Gas
Sensor 0-100% LEL
Weight - 190g
Filter
Plastic retainer
103mm
74mm
56mm
52mm
(across flats)
Exe/Exd gland
operating instructions
Poole Dorset
SensePoint
static risk - read manual
EEx d IIC T6 Tamb -55 +55
o
C
EEx d IIC T5 Tamb -55 +70
o
C
EEx d IIC T4 Tamb -55 +80
o
C
0600
Bas98ATEX2156X II 2G
manufacturer’s
trademark &
address
CE mark -
conforms to all
applicable
European
directives
product name
test house
trademark
certification code
as EN50014 1992
certification number
certified ambient
temperature
range
explosion
protection mark
and equipment
group & category
ident.number
of ATEX
notified
body
caution
Certification label as defined in directive 94/9/EC
This publication is not intended to form the basis of a contract, and the company reserved the right to
amend the design and specification of the instruments without notice.
MIDDLE EAST
Zellweger Analytics
Middle East Regional Office
PO Box 52196
Karama-Bur Dubai UAE
Tel: (971) 4 360940
Fax: (971) 4 345802
NETHERLANDS
Imbema Analytics BV
Maurisstraat 1-7
Postbus 160
2000 AD Haarlem
Netherlands
Tel: (31) 23 517 2424
Fax: (31) 23 5318040
FRANCE
Zellweger Analytics SA
33 rue de Ballon
ZI des Richardets
F-93165 Noisy le Grand
Cedex
France
Tel: (33) 01 48 15 80 80
Fax: (33) 01 48 15 80 00
GERMANY
Zellweger Analytics GmbH
Sollner Strasse 65b
D-81479 Munchen
Germany
Tel: (49) 89 791 920
Fax: (49) 89 791 9243
ITALY
Zellweger Analytics srl
Via F. Primaticcio 168
1-20147 Milano
Italy
Tel: (39) 48300436
Fax: (39) 48302314
UNITED KINGDOM
Zellweger Analytics Ltd
Parsonage Road
Takeley
Bishop’s Stortford
Herts
CM22 6PU, U.K.
Tel: (44) 1279 870182
Fax: (44) 1279 870377
SINGAPORE
Zellweger Analytics Ltd
Asia Pacific Regional Office
30, Tech Park Crescent
Singapore 638102
Tel: (65) 862 7701
Fax: (65) 862 3858
SPAIN
Zellweger Analytics SA
Avda Remolar 31
08820 EI Prat de LIobregrat
Barcelona
Spain
Tel: (34) 3 379 9611
Fax: (34) 3 379 8551
USA
Zellweger Analytics Inc
(Sieger Division)
405 Barclay Blvd
Lincolnshire
Illinois 60069,USA
Tel: (1) 847 913 0015
Fax: (1) 847 634 1371
E-mail: sieger@zelana.com
INTERNATIONAL HQ
Zellweger Analytics Ltd
Hatch Pond House
4 Stinsford Road
Nuffield Estate
Poole
Dorset
BH17 0RZ, UK
Tel: (44)1202 676161
Fax: (44)1202 678011
E-mail: postmaster@
zellweger-analytics.co.uk
Ser.No./Year of manufacture
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