OPTIFLEX 4300 C |
Supplementary instructions |
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Guided Radar (TDR) Level Meter for marine applications
Supplementary Instructions for ATEX applications
© KROHNE 02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en
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CONTENTS |
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OPTIFLEX 4300 C |
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1 General safety information |
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1.1 |
Scope of the document..................................................................................................... |
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1.2 |
Device description ............................................................................................................ |
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1.3 |
Standards and approvals.................................................................................................. |
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1.4 |
Device categories ............................................................................................................. |
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1.5 |
ATEX nameplates.............................................................................................................. |
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Installation |
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2.1 |
Precautions....................................................................................................................... |
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2.1.1 General notes.......................................................................................................................... |
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2.1.2 |
Electrostatic discharge........................................................................................................... |
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2.1.3 |
Special conditions ................................................................................................................... |
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2.2 |
Operating conditions ........................................................................................................ |
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2.2.1 Ambient and flange temperature ........................................................................................... |
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2.2.2 Maximum surface temperature of the housing ................................................................... |
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2.2.3 Process pressure.................................................................................................................. |
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3 Electrical connections |
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3.1 |
General notes ................................................................................................................. |
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3.2 |
Terminal compartment .................................................................................................. |
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3.2.1 How to open the terminal compartment .............................................................................. |
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3.2.2 How to close the terminal compartment............................................................................. |
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3.3 |
Terminal tightening capacity.......................................................................................... |
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3.4 |
Equipotential bonding system........................................................................................ |
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3.5 |
Ex ia equipment .............................................................................................................. |
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3.5.1 How to connect the electrical cables ................................................................................... |
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3.5.2 |
Maximum intrinsically-safe values for the electrical circuit ............................................... |
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3.5.3 Supply voltage ....................................................................................................................... |
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3.5.4 Electrical schema ................................................................................................................. |
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3.6 |
Ex d [ia] equipment......................................................................................................... |
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3.6.1 General notes........................................................................................................................ |
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3.6.2 How to connect the electrical cables ................................................................................... |
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3.6.3 Supply voltage ....................................................................................................................... |
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3.6.4 Electrical schema ................................................................................................................. |
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4 Start-up |
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5 Service |
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5.1 |
Periodic maintenance..................................................................................................... |
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5.2 |
Keep the device clean..................................................................................................... |
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5.3 |
Returning the device to the manufacturer..................................................................... |
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5.3.1 General information.............................................................................................................. |
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5.3.2 Form (for copying) to accompany a returned device............................................................ |
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Approval certificate |
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www.krohne.com |
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
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CONTENTS |
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OPTIFLEX 4300 C |
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7 Notes |
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02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
www.krohne.com |
3 |
1 GENERAL SAFETY INFORMATION |
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OPTIFLEX 4300 C |
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1.1 Scope of the document
These instructions are applicable only to the explosion-protection version of the TDR level transmitter. For all other data, use the Quick Start and other chapters of the Handbook. If you do not have these documents, please contact the nearest office or download them from the manufacturer's internet site.
INFORMATION!
The information in this chapter only contains the data applicable to explosion protection. The technical data for the non-Ex version in the Handbook shall be valid in its current version, provided that it is not rendered invalid or replaced by this chapter.
WARNING!
Installation, commissioning and maintenance may only be carried out by "Personnel trained in explosion protection".
1.2 Device description
This device is a 2-wire level transmitter that uses TDR (Time Domain Reflectometry) / Guided Radar technology. It measures the level, distance, volume and mass of liquids, liquid gases, pastes, powders, slurries and granular products. It is also suitable for the continuous and simultaneous measurement of level and interface of 2 liquids. Measurements are displayed via a DTM (device type manager) for remote communication or an optional integrated display screen with wizard-driven setup and online help functions.
The level transmitter is approved for use in potentially explosive atmospheres when equipped with the appropriate options.
Ex ia-approved devices can also be equipped with an external sensor to measure process temperature, pressure, etc.
1.3 Standards and approvals
DANGER!
In compliance with European Directive 94/9/EC (ATEX 100a), the ATEX version of the device described in these Supplementary Instructions conforms to European Standards EN 60079- 0:2006, EN 60079-1:2007, EN 60079-11:2007, EN 60079-15:2005, EN 60079-26:2007, EN 61241- 0:2006, EN 61241-1:2004 and EN 61241-11:2006. The Ex ia and Ex d [ia] versions are certified for use in hazardous areas by the KEMA Quality B.V. under KEMA 04ATEX1219 X.
WARNING!
Carefully read the ATEX approval certificate. Obey the boundary conditions.
4 |
www.krohne.com |
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
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GENERAL SAFETY INFORMATION 1 |
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OPTIFLEX 4300 C |
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1.4 Device categories
This device is suitable for use in potentially explosive atmospheres of all flammable substances in Gas Groups IIA, IIB and IIC. It is certified for applications requiring Category 1 G (gases, vapours or mists), 1 D (dust), 1/2 G, 1/2 D, 2 G or 2 D equipment when fitted with the appropriate Ex ia options. It is certified for applications requiring Category 1/2 G, 1/2 D, 2 G or 2 D equipment when fitted with the appropriate Ex d options.
INFORMATION!
Category 1
The device is installed in hazardous areas requiring Category 1 G or 1 D equipment.
Category 1/2
The signal converter is installed in hazardous areas requiring Category 2 G or 2 D equipment. The probe is installed in hazardous areas requiring Category 1 G or 1 D equipment.
Category 2
The device is installed in hazardous areas requiring Category 2 G or 2 D equipment.
1.5 ATEX nameplates
Figure 1-1: Ex ia nameplate (device without external sensor)
1ATEX certification agency code. Refer also to temperature classes.
2Equipment approval categories
3Types of device protection including approved Gas Groups (IIA, IIB or IIC) and temperature classes for hazardous areas and maximum surface temperature (please refer to the certificate)
4Intrinsically-safe circuit data
5Cable entry type and size (Aluminium housing: M26 x 1.5, M20 x 1.5, ½NPT or G½; Stainless steel housing: M25 x 1.5, M20 x 1.5, ½NPT or G½)
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
www.krohne.com |
5 |
1 GENERAL SAFETY INFORMATION |
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OPTIFLEX 4300 C |
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Figure 1-2: Ex ia nameplate (device with external sensor)
Figure 1-3: Ex d[ia] nameplate
1ATEX certification agency code. Refer also to temperature classes.
2Equipment approval categories
3Types of device protection including approved Gas Groups (IIA, IIB or IIC) and temperature classes for hazardous areas and maximum surface temperature (please refer to the certificate)
4Intrinsically-safe circuit data
5Maximum voltage in accordance with EN 60079-0
6Minimum waiting time after power-off before it is safe to open the terminal compartment
7Cable entry type and size (Aluminium housing: M26 x 1.5, M20 x 1.5, ½NPT or G½; Stainless steel housing: M25 x 1.5, M20 x 1.5, ½NPT or G½)
6 |
www.krohne.com |
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
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INSTALLATION 2 |
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OPTIFLEX 4300 C |
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2.1 Precautions
2.1.1 General notes
WARNING!
When you install the device, obey the conditions in the EC-Type Examination certificate. These conditions include:
•The special conditions for safe use.
•The Essential Health and Safety Requirements.
DANGER!
This installation must agree with EN 60079-14: Electrical installations in hazardous areas.
2.1.2 Electrostatic discharge
DANGER!
Risk of electrostatic discharge from the blue plastic sun cover, the conduit of the remote housing option and the optional plastic protective sheath for the single rod probe. Make sure that all personnel and equipment are correctly grounded.
Figure 2-1: ESD warning sticker (below the device nameplate)
1Text: Plastic Parts
2Text: Warning! Potential electrostatic hazard - see instructions
Take the necessary antistatic precautions if you:
•handle,
•install or
•use
the device in potentially explosive atmospheres. Do not install in a location (near to ventilation systems, for example) where the electrostatic charge can increase.
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
www.krohne.com |
7 |
2 INSTALLATION |
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OPTIFLEX 4300 C |
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Figure 2-2: Risk of ESD: sun cover and remote housing conduit
1Sun cover
2Conduit of the remote housing option
WARNING!
FEP-coated single cable probes are for Gas group IIB only.
2.1.3 Special conditions
WARNING!
Aluminium housing: Possible source of ignition in a potentially explosive atmosphere. The housing is made of either aluminium alloy or stainless steel. If the device has an aluminium alloy housing, make sure that iron/steel objects do not hit or rub against the device.
2.2 Operating conditions
The allowable ambient temperature and corresponding flange temperature range for the device depends on the ATEX equipment category and temperature classes marked on the nameplate.
2.2.1 Ambient and flange temperature
The ATEX equipment category and temperature class give the ambient temperature and related flange temperature ranges for the device.
INFORMATION!
The remote converter and Metaglas® options use the values that follow.
WARNING!
The gasket temperature must not be more or less than the approved limits.
8 |
www.krohne.com |
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
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INSTALLATION 2 |
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OPTIFLEX 4300 C |
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Equipment category II 1 G (Ex ia devices only)
Temperature class |
Ambient temperature |
Flange temperature |
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[°C] |
[°F] |
[°C] |
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T6 |
-20…+60 |
-4…+140 |
-20…+60°C |
-4…+140 |
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Equipment category II 1/2 G
Temperature class |
Ambient temperature |
Flange temperature |
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[°C] |
[°F] |
[°C] |
[°F] |
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T6 |
-40…+60 |
-40…+140 |
-20…+60°C |
-4…+140 |
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T5 |
-40…+75 |
-40…+167 |
-20…+60°C |
-4…+140 |
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T4 |
-40…+85 |
-40…+185 |
-20…+60°C |
-4…+140 |
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Equipment category II 2 G: Ø2 mm/Ø0.08¨ single cable probe (HT, HP and HT/HP versions)
Temperature |
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Ambient temperature |
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Flange temperature |
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class |
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Ø2 mm/Ø0.08¨ single cable |
Ø2 mm/Ø0.08¨ single cable |
[°C] |
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[°F] |
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probe (HT version) |
probe (other versions) |
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[°C] |
[°F] |
[°C] |
[°F] |
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T6 |
-40…+60 |
-40…+140 |
-40…+60 |
-40…+140 |
-50…+60 1 |
-58…+140 2 |
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-40…+56 |
-40…+133 |
-40…+52 |
-40…+126 |
-50…+85 1 |
-58…+185 2 |
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T5 |
-40…+75 |
-40…+167 |
-40…+75 |
-40…+167 |
-50…+75 |
1 |
-58…+167 2 |
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-40…+71 |
-40…+160 |
-40…+67 |
-40…+153 |
-50…+100 1 |
-58…+212 2 |
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T4 |
-40…+85 |
-40…+185 |
-40…+85 |
-40…+185 |
-50…+85 |
1 |
-58…+185 2 |
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-40…+80 |
-40…+176 |
-40…+77 |
-40…+170 |
-50…+110 1 |
-58…+230 2 |
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-40…+77 |
-40…+170 |
-40…+70 |
-40…+158 |
-50…+135 1 |
-58…+275 2 |
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T3 |
-40…+75 |
-40…+165 |
-40…+65 |
-40…+149 |
-50…+150 1 |
-58…+302 2 |
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-40…+71 |
-40…+160 |
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-50…+180 1 |
-58…+356 2 |
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-40…+69 |
-40…+157 |
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-50…+200 1 |
-58…+392 2 |
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T2 |
-40…+62 |
-40…+144 |
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-50…+250 1 |
-58…+482 2 |
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-40…+55 |
-40…+131 |
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-50...+300 |
1 |
-58…+572 2 |
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1-50°C, if an EPDM gasket is used. -40°C, if a Viton® GLT gasket is used. -20°C, if a Kalrez® 6375 gasket is used.
2-58°F, if an EPDM gasket is used. -40°F, if a Viton® GLT gasket is used. -4°F, if a Kalrez® 6375 gasket is used.
02/2009 - 4000523601 - AD ATEX OPTIFLEX 4300 R01 en |
www.krohne.com |
9 |
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