KROHNE OPTIFLEX2200cFMus User Manual
Supplementary instructions
Supplementary instructions
OPTIFLEX 2200 C/F
OPTIFLEX 2200 C/F
OPTIFLEX 2200 C/FOPTIFLEX 2200 C/F
Supplementary instructions Supplementary instructions
2-wire / Guided Radar (TDR) Level Meter
Dual Seal system for cFMus-approved devices
Dual Seal system for cFMus-approved devices
Dual Seal system for cFMus-approved devicesDual Seal system for cFMus-approved devices
© KROHNE 12/2013 - 4003298701 - AD cFMus OPTIFLEX2200 R01 en
CONTENTS
OPTIFLEX 2200 C/F
1 General safety information 3
1.1 Scope of the document..................................................................................................... 3
1.2 General notes ................................................................................................................... 3
1.3 Dual Seal data on cFMus nameplates ............................................................................. 4
2 Addendum 5
2.1 System design .................................................................................................................. 5
2.2 Operating principle........................................................................................................... 5
3 Service 7
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OPTIFLEX 2200 C/F
1.1 Scope of the document
GENERAL SAFETY INFORMATION 1
These supplementary instructions (addendum) only contain the data applicable to the Dual Seal
system
system.
systemsystem
These instructions are applicable only to the cFMus-approved version of the TDR level
transmitter. For more data about cFMus applications, refer to the certificate of compliance and
the control drawings. If you do not have these documents, contact the nearest office or download
them from the manufacturer's internet site.
For all other data, use the Quick Start and Handbook. If you do not have these documents,
contact the nearest office or download them from the manufacturer's internet site.
INFORMATION!
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 these supplementary instructions, the
certificate of compliance and the control drawings.
WARNING!
Installation, commissioning and maintenance may only be carried out by "Personnel trained in
explosion protection".
1.2 General notes
The Dual Seal system for this modular level meter agrees with American National Standard
ANSI / ISA-12.27.01-2003 (Requirements for Process Sealing Between Electrical Systems and
Flammable or Combustible Process Fluids). It uses the pressure relief valve principle:
Dual Seal
Dual Seal Dual Seal
• to make sure that the process fluid does not go into the electrical system and
• to show the condition of the primary seal.
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