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20111027 Namur NE107 Endress Schollaard
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27/10/2011
Namur NE107
Aldert Schollaardt
Slide 1
27/10/2011
Wat is de Namur
Slide 2
Aldert Schollaardt
27/10/2011
Aldert Schollaardt
Slide 3
Members
NAMUR is an international association of users of automation in process industries.Membership of NAMUR is open only to companies of the process industries, provided that these companies are
manufacturers of chemical or pharmaceutical products, or users of process plants which bear responsibility for operating these plants, or providers of services to chemical/pharmaceutical manufacturers with or without plant operating responsibility; also eligible for membership are organizations with a technical or scientific purpose, e.g. scientific bodies, associations, universities etc.
NAMUR
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 4
127 member companies
NAMUR28-10-2011
27/10/2011
Aldert Schollaardt
Slide 6
Publications
The results of the work carried out by NAMUR arepublished:
• in NAMUR recommendations and worksheets • in presentations at the Annual General Meeting• in publications which appear in technical journals
(e.g. atp, at, C&A, ChemManager, CIT, etz, GIT,process , P & A, Messtech & Automation, SPS-Magazin, tm )
• in speeches made at workshops and conferences organized by cooperating partners (ARC, DECHEMA, GMA, GVC, ISA, WIB)
NAMUR28-10-2011
27/10/2011
Aldert Schollaardt
Slide 8
NAMUR recommendations
NA 01 (1967): Noncontacting Initiators and amplifiers• Characteristics proximity switches• IEC 60947-5-6
Current ranges for signal levels of digital transmitters
NE 43: Standardization of the Signal Level for Failure• Discrimination between process and failure information• μP based devices
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 9
NE 105: Specifications for Integrating Fieldbus Devices in Engineering Tools for Field Devices
Device DescriptionConfiguration Tool
Device descriptions must be upward and downwardcompatible for integration.
NAMUR recommendations
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 10
General requirements:
� Ex classification,
� Measurement inaccuracy,
� Electrical connection,
� Permanent interoperability with the process control system,
� No additional functions,
� Others …..
enhanced functionality for the remaining more sophisticated applications
Specific requirements:
� Flow,
� Level,
� Pressure,
� Temperature,
� Actuators
NE 131: NAMUR Standard Device
Field Device Requirements for Standard Applications
� covering 80% of application cases
NAMUR recommendations28-10-2011
27/10/2011
Aldert Schollaardt
Slide 11
NE 132: Coriolis Mass Meter (CMM)
Scope:
� Description of the measuring principle, the main components of a Coriolis mass meter, designs and dimensions, the installation.
� Instructions on use and information about the causes of errors,
� The obtaining of approval from the Office of Weights and Measures (NMi) and calibration.
This recommendation does not stipulate any requirements for use in Safety Instrumented Systems.
NAMUR recommendations
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 12
NE 107: Self-Monitoring and Diagnosis of Field Devices
Diagnostics
� analyze status information (i.e. from field devices)
� with the objective of detecting causes for potential malfunction.
Diagnostics form the basis to remove malfunctions.
NAMUR recommendations
28-10-2011
27/10/2011
NE107Device diagnostics simplified
Slide 13
Aldert Schollaardt
27/10/2011
System Errors and warnings
Diagnostic notification
Slide 14
Aldert Schollaardt
Process errors
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 15
Maintenance required
Out of specification
Check function
Failure
Diagnostics active
Diagnostics passive
Diagnostic symbols (NE 107)
NAMUR recommendations28-10-2011
27/10/2011
Aldert Schollaardt
Slide 16
Content NE 107
� Status signals and symbols are defined: failure, check function, out of specification, maintenance required.
� Application diagnostics are defined by end users defined for flow -, level -, pressure -, temperature measurements and control valves.
� More then 300 (!!!) diagnostic functions are defined. Learning curve for manufacturers and end users.
� Requirements for diagnostic functions e.g.: - better no diagnostic then unreliable diagnostic (par. 4.4) - diagnostic has to be allocated flexible to the status signal (par. 5.1)- individual diagnostic functions has to be switched off (par. 5.1)
NAMUR recommendations
28-10-2011
27/10/2011
Example Massflow
Slide 22
Aldert Schollaardt
27/10/2011
Aldert Schollaardt
Slide 23
Instrument diagnostics
e.g. SIL certified devices (IEC 61508/61511)
Application diagnostics (NE 107)
e.g. Coriolis mass flowmeterGas bubbles in the liquid, Fouling, clogging, Erosion, corrosion, Faulty mounting, external vibrations, pulsating flow, incomplete filling
Application diagnostics are defined for flow -, level -, pressure -, temperature measurements and control valves
NAMUR recommendations28-10-2011
27/10/2011
Aldert Schollaardt
Slide 24
Connect diagnostic to one status signal
On / off switchdiagnostics
Example: mass flowmeter
Coriolis mass flowmeterGas bubbles in the liquidFouling, cloggingErosion, corrosionFaulty mountingAsymmetry of measuring tubes (dual tube only)
External vibrationsPulsating flowIncomplete filling
NAMUR recommendations
Application diagnostics (NE 107)
28-10-2011
27/10/2011
Life demo Massflow
Slide 25
Aldert Schollaardt
27/10/2011
Example Temperature
Slide 26
Aldert Schollaardt
27/10/2011
Aldert Schollaardt
Slide 27
Diagnostics for transmitter and thermometer
Sensor
short circuit
Sensor
broken
Sensor
corrosion
ΔT =
T1–T2
T
Drift detection
sensor 1 sensor 2
Alarm or warning
Sensor 1:
FAILURE!Sensor 2:
BACK-UP
Sensor Back-up
Error of sensor 1
= automatic switching
to sensor 2
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 28
Detailed device information
Exact diagnostics information via FieldCare
Information about cause and possible remedy
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 29
„Selectable“ Diagnostics
28-10-2011
27/10/2011
Aldert Schollaardt
Slide 30
Sensor drift detection
ΔT > 3°C
Sensor 1 Sensor 2
120.4°C124.3°C
TR10 +
iTEMP® TMT82TC10
Process
Another application example:
Temperature difference between sensor 1 and sensor 2 must not
exceed 3 °C otherwise a warning signal shall be generated. Application makes sense if 2 different sensor types are used!
warning to the
system
Sensor wire Fieldbus
conductor
28-10-2011
27/10/2011
Life demo Temperature
Slide 31
Aldert Schollaardt
27/10/2011
Aldert Schollaardt
Slide 32
Vragen
28-10-2011