KROHNE TC100Ex User Manual
Supplementary instructions
Supplementary instructions
OPTITEMP TR/TC 100
OPTITEMP TR/TC 100
OPTITEMP TR/TC 100OPTITEMP TR/TC 100
Supplementary instructions Supplementary instructions
Measuring inserts: TR 100 resistance thermometers
and TC 100 thermocouples
Category II 1G
© KROHNE 08/2010 - 4001022701 - Ex AD OPTITEMP TR/TC 100 R01 en
CONTENTS
OPTITEMP TR/TC100
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EC conformity ................................................................................................................... 3
1.3 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 ........................................................................................................ 5
2.5 Equipment category .........................................................................................................6
2.6 Protection types................................................................................................................ 6
2.7 Temperature classes........................................................................................................7
2.8 Electrical data................................................................................................................... 8
3 Installation 9
3.1 Special Conditions ............................................................................................................ 9
3.2 Installation........................................................................................................................ 9
4 Electrical connections 10
4.1 General notes ................................................................................................................. 10
4.2 Power supply .................................................................................................................. 11
4.3 Inputs / Outputs.............................................................................................................. 11
4.3.1 Pt100 measuring inserts....................................................................................................... 11
4.3.2 Thermocouple measuring inserts ........................................................................................ 12
4.4 Earthing and equipotential bonding ............................................................................... 12
5 Operation 13
5.1 Start-up........................................................................................................................... 13
5.2 Operation ........................................................................................................................ 13
6 Service 14
6.1 Maintenance ................................................................................................................... 14
6.2 Dismantling .................................................................................................................... 14
7 Notes 15
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OPTITEMP TR/TC100
1.1 General notes
These additional Ex instructions apply to explosion-protected versions of measuring inserts with
the marking II 1 G. They complement the standard documentation for non-explosion protected
versions.
The information given in these Instructions contains only the data relevant to Category 1
explosion protection. The technical details given in the standard documentation for the nonexplosion protected versions apply unchanged unless excluded or superseded by these
Instructions.
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.
The EC Type Test Certificate of the National Metrology Institute (PTB) forms the basis of the EC
Declaration of Conformity:
SAFETY INSTRUCTIONS 1
The "X" after the certificate number refers to special conditions for safe use of the device as
described in these Instructions.
You may download the EC Type Test Certificate from the manufacturer's website as needed.
1.3 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.
PTB 10 ATEX 2010 X
PTB 10 ATEX 2010 X
PTB 10 ATEX 2010 XPTB 10 ATEX 2010 X
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2 DEVICE DESCRIPTION
2.1 Device description
Electric thermometers measure the temperature of combustible and non-combustible gases
and liquids. The thermometer contains a Pt100 RTD or a thermocouple.
2.2 Description code
The safety description code of the measuring inserts is made up of the following elements
(spaces in the code may be omitted):
1 Sensor type (TR = resistance thermometer, TC = thermocouple)
2 Version (Ex = ATEX approved)
3 Diameter of measuring insert (6=6mm/ 0.24")
4 Space for information not relevant for ex purposes
The length of the measuring insert is displayed on the nameplate in plain text.
OPTITEMP TR/TC100
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OPTITEMP TR/TC100
2.3 Marking
DEVICE DESCRIPTION 2
1 Description code
2 Identification number of the notified body as per Directive 94/95, Appendix IV
3 Ex-marking
4 Number of the EC Type Test Certificate
5 Equipment group and category
6 Unique serial number
7 Production order number
8 Sensor name (e.g. 1xPt100-A-ww): single/double version (here: simple, thus 1x), tolerance class (here: tolerance class
A), type of RTD (here: wire-wound version, thus ww)
9 Temperature range of use
2.4 Flammable products
Atmospheric conditions
An explosive atmosphere is a mixture of air and flammable gases, vapours, mists or dusts under
atmospheric conditions. The following values define it:
= -20...+60°C / -4...+140°Fand P
T
atm
Outside of this range, no key data are available as to ignition behaviour for most mixtures.
Operating conditions
Outside of atmospheric conditions you cannot apply explosion protection according to Directive
94/9/EC (ATEX) – regardless of the zone assignment - due to the lack of key safety data.
= 0.8...1.1 bar / 11.6...15.9 psi
atm
CAUTION!
The operator is responsible for ensuring that the measuring inserts are operated safely as
regards the temperature and pressure of the products used.
Include the thermometer assembly in the periodic pressure tests of the system when operating
with flammable products.
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