KROHNE PH8xxxEx User Manual
SMARTSENS PH 8XXX
SMARTSENS PH 8XXX
SMARTSENS PH 8XXXSMARTSENS PH 8XXX
Digital pH sensors
Category
II 1 G
Supplementary instructions
Supplementary instructions
Supplementary instructionsSupplementary instructions
© KROHNE 07/2014 - 4002951402 - MA SMARTSENS PH 8xxx R02 en AD
CONTENTS
SMARTSENS PH 8XXX
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EC conformity ................................................................................................................... 3
1.3 Approval according to the IECEx scheme ........................................................................ 3
1.4 Safety instructions............................................................................................................ 3
2 Device description 4
2.1 Device description ............................................................................................................ 4
2.2 Description code............................................................................................................... 4
2.3 Marking............................................................................................................................. 5
2.4 Flammable products ........................................................................................................ 7
2.5 Equipment category .........................................................................................................7
2.6 Protection type for gas hazardous areas ......................................................................... 8
2.7 Temperature classes........................................................................................................8
2.8 Autoclavability .................................................................................................................. 8
2.9 Electrical data................................................................................................................... 9
3 Installation 10
3.1 Installation...................................................................................................................... 10
4 Electrical connections 11
4.1 General notes ................................................................................................................. 11
4.2 Power supply .................................................................................................................. 11
4.3 Inputs/outputs ................................................................................................................ 11
4.4 Grounding and equipotential bonding............................................................................ 12
5 Operation 13
5.1 Starting up for the first time .......................................................................................... 13
5.2 Operation ........................................................................................................................ 13
5.3 Electrostatic charge .......................................................................................................13
6 Service 14
6.1 Maintenance ................................................................................................................... 14
6.2 Dismantling .................................................................................................................... 14
7 Notes 15
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SMARTSENS PH 8XXX
1.1 General notes
This additional Ex instruction applies to explosion-protected versions of the sensors with the
marking II 1 G. It completes the standard documentation for non-explosion protected versions.
The information given in this instruction contains only the data relevant to explosion protection.
The technical details given in the standard documentation for the non-explosion protected
versions remain unchanged unless they will be excluded or replaced by this instruction.
1.2 EC conformity
The manufacturer declares with the EC declaration of conformity on his own responsibility
conformity with the protection goals of directive 94/9/EC for use in hazardous areas with gas.
Conformity with harmonised standards was checked in accordance with EN 60079-0:2009 and
EN 60079-11:2012.
The EC declaration of conformity is based on the EC type examination certificate of the
Physikalisch Technische Bundesanstalt (PTB):
SAFETY INSTRUCTIONS 1
PTB 13 ATEX 2011 X
PTB 13 ATEX 2011 X
PTB 13 ATEX 2011 XPTB 13 ATEX 2011 X
You can download the EC Type Examination Certificate from the manufacturer's website.
1.3 Approval according to the IECEx scheme
Conformity with IECEx standards was tested in accordance with the IECEx Certification Scheme
for Explosive Atmospheres acc. to IEC 60079-0:2011 and IEC 60079-11:2012. The number of the
IEC certificate is:
IECEx PTB 13.0022 X
IECEx PTB 13.0022 X
IECEx PTB 13.0022 XIECEx PTB 13.0022 X
You can download the IEC certificate from the manufacturer's website.
1.4 Safety instructions
Assembly, installation, start-up and maintenance may only be performed by personnel trained in
explosion protection!
CAUTION!
Should operating conditions and locations require the observance of further standards,
guidelines and laws, this is the responsibility of the operator and/or those commissioned by him.
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2 DEVICE DESCRIPTION
2.1 Device description
The pH sensor is designed to measure pH in liquids.
It has a connection for a 4..20 mA current output with HART
The connection is designed as a plug connector and at the same time supplies the sensor with
power.
®
communication.
SMARTSENS PH 8XXX
1 Nickel plated brass body with VP 2.0 connector
2 PG 13.5 thread
3 Washer
4 O-ring
5 Glass shaft
6 Diaphragm
7 Membrane glass
2.2 Description code
The safety description code of the pH sensors is made up of the following elements (spaces in
the code may be omitted):
SMARTSENS PH 8ab0
SMARTSENS PH 8ab0
SMARTSENS PH 8ab0SMARTSENS PH 8ab0
aaaa = 1: Open (hole) bbbb = 2: Industrial wastewater
aaaa = 3: PTFE bbbb = 5: Chemical
aaaa = 5: Ceramic bbbb = 7: Pharma
Feature aaaa
Type of diaphragm
Feature bbbb
Field of application
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SMARTSENS PH 8XXX
2.3 Marking
The marking of the devices in accordance with the description code is shown on the nameplates
below. The main plate is on the main part of the device and there is an additional marking on the
glass.
DEVICE DESCRIPTION 2
Figure 2-1: Example nameplate ATEX
1 Manufacturer
2 Type
3 TAG number, order code, serial number D14
4 Ex data acc. to ATEX PTB 13 ATEX 2011 X
5 Observe the installation and operation instruction
14xxxxxx = Year of manufacture 2014
1414
Figure 2-2: Example nameplate IECEx
1 Manufacturer
2 Type
3 TAG number, order code, serial number D14
4 Ex data acc. to IECEx PTB 13.0022 X
5 Observe the installation and operating instructions
14xxxxxx = Year of manufacture 2014
1414
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