11
12
13 14
1 2
1. INTRODUCTION
SensePoint is for the detection of toxic gases and is
designed for use with an approved junction box.
It employs an electrochemical cell sensor device which is
gas specic and used as part of a 4-20mA loop powered
measuring circuit. The sensor includes a voltage clamp
within a sealed Exd enclosure and an electrochemical cell
driver and cell within an IS portion of the sensor.
Different sensor versions detect different gases. Sensors
are available for the detection of H
2
S, CO, CI
2
, NH
3
, H
2
, SO
2
,
NO, NO
2
, O
2
. The sensor is available in M20* or 3/4 NPT
thread versions. All accept accessories from the specied
range. Should you require information outside the scope of
these instructions please contact Honeywell Analytics Ltd.
This product is certied for use in hazardous areas and is
protected against water and dust ingress to IP65, or IP66/67
if approved weather protection is tted.
*NOTE - M20 thread option awaiting certication.
2. ASSOCIATED DOCUMENTATION
2106M0502 SensePoint Technical Handbook.
Refer to the relevant control system manual for connection
information.
1. INTRODUCTION & 2. ASSOCIATED DOCUMENTATIONCONTENTS
1. INTRODUCTION .........................................................2
2. ASSOCIATED DOCUMENTATION ..............................2
3. SAFETY ......................................................................3
3.1 Warnings ...........................................................3
3.2 Precautions .......................................................3
4. OPERATIONS .............................................................4
4.1 Installation ........................................................4
4.2 Calibration.........................................................5
4.3 Fault nding ......................................................8
5. MAINTENANCE ..........................................................9
5.1 Changing the electrochemical cell and
internal lter ......................................................9
5.2 Changing the external hydrophobic assembly . 10
Appendix A - Specications .............................. 11
Appendix B - Glossary ......................................12
Appendix C - Main features............................... 13
Appendix D - Spare parts .................................. 14
APPENDIX A - SPECIFICATIONS APPENDIX B - GLOSSARY APPENDIX C - MAIN FEATURES APPENDIX D - SPARE PARTS
Operating temperature range:
see table 1.
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:
see table 1.
Voltage range:
18 to 30 V at sensor.
Power consumption:
0.9 W Max.
Signal output:
4 to 20 mA loop powered.
Calibration ow rate:
recommended between 0.5 and 1.5 l/min.
Expected operating life:
H
2
S, CO, no less than 24 months.
NH
3
, Cl
2
, H
2
, SO
2
, NO
2
, NO, O
2
no less than 12 months.
IP rating:
IP65 standard.
IP66/67 when tted with appropriate weather protection.
Certication:
Ex II 2G EEx dia IIC T4 -55 to +65°C.
Sensepoint 2106AXXXX (Tox).
Vmax 32V BAS98ATEX2157X.
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 45544.
Exd
Flame proof or explosion proof within the connes 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 connes 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
Honeywell Analytics Ltd.
IS
Intrinsically safe, apparatus in which the circuits themselves
are incapable of causing ignition of a ammable gas.
Replacement sensing elements (including hydrophobic barrier):
gas type replacement cell
O
2
2106B1545
SO
2
2106B1546
Cl
2
2106B1547
CO 2106B1548
H
2
S 2106B1549
NO 2106B1594
NH
3
(1000ppm) 2106B1595
NH
3
(50ppm) 2106B1596
H
2
(1000ppm) 2106B1597
H
2
(10000ppm) 2106B1598
NO
2
2106B1599
Weather protection .........................................02000-A-1635
Flow housing (standard) .................................02000-A-1645
Flow housing (for adsorbent gases) ................02000-A-3120
Junction box (standard) ..................................00780-A-0100
To reorder a complete new sensor, see the label on the product
leads, or contact Honeywell Analytics Ltd.
103mm
Standard Honeywell
Analytics junction box
threads available:
M20*; 3/4” NPT.
SensePoint Toxic
Gas Sensor
Weight - 185g
(205g oxygen)
#
External Hydrophobic barrier
Plastic retainer
103mm
90mm
56mm
52mm
(across ats)
Exe/Exd gland
#
optional
(recommended
for harsh/dirty
environments)
Poole Dorset
SensePoint
static risk - read manual
EEx d ia IIC T4 Tamb -55 +65
o
C
0600
Bas98ATEX2157X II 2G
manufacturer’s
trademark &
address
CE mark
- conforms to
all applicable
European
directives
product name
test house
trademark
certication code
as EN50014 1992
certication number
certied ambient
temperature
range
explosion
protection mark
and equipment
group & category
ident.
number
of ATEX
notied
body
caution
Certication label as dened in directive 94/9/EC
Ser.No./year of manufacture
Operating Instructions
Sensepoint
Toxic Sensor
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