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INTRODUCTION
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OPTIMASS 6400
www.krohne.com 11/2017 - 4004960802 - AD OPTIMASS 6400 SIL R02 en
1.1 Scope of the document
This document supplies functional safety data and instructions for an OPTIMASS 6400 SIL device.
1.2 Revision history (Firmware)
1.3 Device description
The OPTIMASS 6400 is a 4-wire Coriolis mass flowmeter measuring mass flow rate, total mass,
density, temperature, volume flow rate, flow velocity, total volume and concentration of liquids
and gases.
The device can be used in safety applications measuring mass flow, volume flow or density of
liquids using the safe current output at terminal C. The safe current output is available as
intrinsically safe and non-intrinsically safe variant according to IEC 60079-11.
INFORMATION!
The data in this supplement only contains the data applicable to the SIL approval. The technical
data for the standard version in the handbook (document [N1]) shall be valid, provided that it is
not rendered invalid or replaced by this supplement.
INFORMATION!
Installation, commissioning and maintenance may only be carried out by properly trained and
authorised personnel.
Release date Electronic revision Changes and compatibility Documentation
2016-07-01 ER 2.0.0_ Initial version AD OPTIMASS 6400 SIL R01 en
2016-12-01 ER 2.0.1_ Compatibility bugfix AD OPTIMASS 6400 SIL R02 en
2017-08-30 ER 2.0.2_ Implementation of new interfaces
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AD OPTIMASS 6400 SIL R02 en
1 Not safety relevant change
INFORMATION!
The manufacturer designed and developed the device for safety integrity level (SIL) 2 [and 3 in
homogeneous redundancy architecture] according to IEC 61508 [N3].
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