Micro Motion Safety Manual: Micro Motion 2700/1700 Coriolis Flowmeter Manuals & Guides

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Safety Manual
P/N 20004482, Rev. BB June 2014
Coriolis Flowmeter with Model 1700 or Model 2700 Transmitter
Safety Manual for SIS
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©2014 Micro Motion, Inc. All rights reserved. The Emerson logo is a trademark and service mark of Emerson Electric Co. Micro Motion, ELITE, ProLink, MVD and MVD Direct Connect marks are marks of one of the Emerson Process Management family of companies. All other marks are property of their respective owners.
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Contents
1 Terms and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Reference Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3 Using and Maintaining the Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Operating Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Product Safety Officer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Communications Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3.2 Installation and Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3.3 Safety Integrity Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3.4 Proof Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.5 Repair and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.6 Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1 Safety Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.2 Diagnostic Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.3 Startup Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.4 Reliability Data and Lifetime Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.5 Environmental Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.6 Application Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety Manual for SIS i
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ii Coriolis Flowmeter with Model 1700 or Model 2700 Transmitter
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Micro Motion

1 Terms and Abbreviations

Safety Freedom from unacceptable risk of harm.
Functional Safety The ability of a system to carry out the actions necessary to achieve or to
Basic Safety The equipment must be designed and manufactured such that it protects
Safety Assessment The investigation to arrive at a judgment – based on evidence – of the safety
Further definitions of terms used for safety techniques and measures and the description of safety related systems are given in IEC 61508-4.
FMEDA Failure Modes, Effects and Diagnostic Analysis
HART Highway Addressable Remote Transducer
PFD
AV G
SIL Safety Integrity Level, discrete level (one out of a possible four) for
maintain a defined safe state for the equipment / machinery / plant / apparatus under control of the system.
against risk of damage to persons by electrical shock and other hazards and against resulting fire and explosion. The protection must be effective under all conditions of the nominal operation and under single fault condition.
achieved by safety-related systems.
Average Probability of Failure on Demand
specifying the safety integrity requirements of the safety functions to be allocated to the E/E/PE safety-related systems where Safety Integrity Level 4 has the highest level of safety integrity and Safety Integrity Level 1 has the lowest.
SIS Safety Instrumented System – Implementation of one or more Safety

2 Reference Documents

Micro Motion Model 1700 and Model 2700 Transmitters: Installation Manual
Micro Motion Series 1000 and Series 2000 Transmitters: Configuration and Use Manual
Report No.: MiMo 04/06-22 R004 Version V3, Revision R2, April 25, 2014
Report No.: MiMo 08/04-67 R001 Version V3, Revision R2, April 25, 2014
Micro Motion sensor installation manuals Documents generated by Micro Motion
Micro Motion sensor product data sheets Documents generated by Micro Motion
All documents are available on the Micro Motion web site: www.micromotion.com.
Instrumented Functions. A SIS is composed of any combination of sensor(s), logic solver(s), and final element(s).
Document generated by Micro Motion
Document generated by Micro Motion
FMEDA report for Coriolis Flowmeter with 1700/2700 Transmitter and Core Processor Prepared for Micro Motion by exida.com LLC
FMEDA report for Coriolis Flowmeter with 1700/2700 Transmitter and Enhanced Core Processor Prepared for Micro Motion by exida.com LLC
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Micro Motion

3 Using and Maintaining the Flowmeter

3.1 Communications Tools

The following communications tools can be used to commission the transmitter:
The appropriate version of the ProLink
The 375 Field Communicator (handheld) with the appropriate HART device description (DD)
AMS Device Manager
The proof test instructions in this manual are designed for use with ProLink II v2.8 or the HART device rev 5, DD rev1. Adapt these instructions as required for use with earlier or later versions of ProLink, the HART DD, or AMS Device Manager.
Refer to Micro Motion Series 1000 and Series 2000 Transmitters: Configuration and Use Manual for information on connecting the handheld or ProLink II to the transmitter, and using the communications tool with the transmitter.

3.2 Installation and Commissioning

No special installation is required in addition to the standard installation practices outlined in Micro Motion Model 1700 and Model 2700 Transmitters: Installation Manual and the appropriate sensor installation manual.
During commissioning, the following safety-critical parameters must be verified or configured:
Flowmeter characterization parameters (FCF, K1, K2, D1, D2, DT)
®
software package from Micro Motion
mA output range (LRV and URV)
Engineering units (measurement units)
Primary variable (process variable assigned to the primary mA output)
Low flow cutoff
Damping values (flow damping, density damping, temperature damping, added damping)
During the proof test, these parameters must be verified.

3.3 Safety Integrity Parameter Settings

The following parameters need to be set in order to maintain the designed safety integrity:
Parameter Reason
mA Fault Action (set to Upscale or Downscale)
mA Fault Level To specify the actual mA output signal in case of fault:
Password option or write-protection enabled
To specify if the mA output should go high (> 21 mA) or low (< 3.6 mA) upon detection of an internal failure
• Upscale: range = 21–24 mA, default = 22 mA
• Downscale:
- I.S transmitters: range = 3.2–3.6 mA, default = 3.2 mA
- All other transmitters: range = 1.0–3.6 mA, default = 2.0 mA
To prevent accidental changes to parameter settings
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3.4 Proof Tests

The objective of proof testing is to detect failures within the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter that are not detected by the diagnostics of the transmitter. Of main concern are undetected failures that prevent the Safety Instrumented Function from performing its intended function.
The frequency of proof testing, or the proof test interval, is to be determined in reliability calculations for the Safety Instrumented Functions for which the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter is applied. The proof tests must be performed at least as frequently as specified in the calculation in order to maintain the required safety integrity of the Safety Instrumented Function.
The person(s) performing the proof test of the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter should be trained in SIS operations, including bypass procedures, flowmeter maintenance and company Management of Change procedures. A handheld communicator or ProLink II is required. Refer to Micro Motion Series 1000 and Series 2000 Transmitters: Configuration and Use Manual for information on connecting the handheld device or ProLink II to the transmitter, and using the communications tool with the transmitter.
The results of the proof test need to be documented and this documentation should be part of a plant safety management system. Any failures that are detected and that compromise functional safety should be reported to the Product Safety Officer within Micro Motion (see Section 5).
Table 1-1 describes the proof test options and the associated DU (Dangerous Undetected) failure detection rate.
Table 1-1 Proof Test Options
Core Processor Type Proof Test Description DU Failure Detection
Standard 1 • mA output min-to-max test
• Checking for alarms
• Checking configuration
1 and 3 As above, plus:
• Calibration against primary standard
Enhanced 1 • mA output min-to-max test
• Checking for alarms
• Checking configuration
2 • mA output min-to-max test
• Checking for alarms
• Checking configuration
• Meter verification
• Verification of onboard temperature measurement
• Test for soft errors in RAM
2 and 3 As above, plus:
• Calibration against primary standard
56%
99%
56%
91%
99%
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Proof Test 1
The following proof test is recommended for all flowmeters.
Step Action
1 Electronically bypass the safety PLC by using a maintenance override function or take other
2 Set each mA output to go to the Fault Level specified for Upscale, and verify that the mA
3 Set each mA output to go to the Fault Level specified for Downscale, and verify that the mA
4 Ensure that no alarms or warnings are present in the transmitter.
5 Verify all safety-critical configuration parameters. See Section 3.2.
6 Restore the loop to full operation.
7 Remove the bypass from the safety PLC or otherwise restore normal operation.
appropriate action to avoid a false trip, following Management of Change procedures.
current reaches that value. If the mA output Fault Action is not set for Upscale, use the default value (22 mA).
• Using a handheld:
• Using ProLink II: ProLink > Test > Fix mA Output
This tests for compliance voltage problems such as a low loop power supply voltage or increased wiring resistance. This also tests for other possible failures.
current reaches that value. If the mA output Fault Action is not set for Downscale, use the default value (I.S. transmitters: 3.2 mA, all other transmitters: 2.0 mA).
• Using a handheld:
• Using ProLink II: ProLink > Test > Fix mA Output
This tests for possible failures related to quiescent current.
• Using a handheld:
• Using ProLink II: ProLink > Status
Diag/Service > Loop Test > Fix Analog Out
Diag/Service > Loop Test > Fix Analog Out
Diag/Service > View Status
Proof Test 2
The following proof test is recommended for all flowmeters with an enhanced core processor.
Note: Proof Test 2 incorporates all the steps of Proof Test 1.
Step Action
1 Electronically bypass the safety PLC by using a maintenance override function or take other
appropriate action to avoid a false trip, following Management of Change procedures.
2 Set each mA output to go to the Fault Level specified for Upscale, and verify that the mA
current reaches that value. If the mA output Fault Action is not set for Upscale, use the default value (22 mA).
• Using a handheld:
• Using ProLink II: ProLink > Test > Fix mA Output
This tests for compliance voltage problems such as a low loop power supply voltage or increased wiring resistance. This also tests for other possible failures.
3 Set each mA output to go to the Fault Level specified for Downscale, and verify that the mA
current reaches that value. If the mA output Fault Action is not set for Downscale, use the default value (I.S. transmitters: 3.2 mA, all other transmitters: 2.0 mA).
• Using a handheld:
• Using ProLink II: ProLink > Test > Fix mA Output
This tests for possible failures related to quiescent current.
4 Read the temperature value from the sensor, compare it to process temperature, and verify
that this is a reasonable reading.
• Using a handheld:
• Using ProLink II: ProLink > Process Variables > Temp
5 Power-cycle the transmitter, then wait approximately 40 seconds for the flowmeter to return
to normal operation.
Diag/Service > Loop Test > Fix Analog Out
Diag/Service > Loop Test > Fix Analog Out
Process Variables > View Fld Dev Vars > Temp
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Step Action
6 Perform the meter verification procedure as described in Micro Motion Series 1000 and
7 Ensure that no alarms or warnings are present in the transmitter.
8 Verify all safety-critical configuration parameters. See Section 3.2.
9 Restore the loop to full operation.
10 Remove the bypass from the safety PLC or otherwise restore normal operation.
Proof Test 3
The following proof test is recommended for all flowmeters.
Perform a full calibration against a primary standard.
Note: The meter verification procedure and the onboard temperature verification test are incorporated into a full calibration.
Series 2000 Transmitters: Configuration and Use Manual.
• Using a handheld:
• Using ProLink II: ProLink > Status
Diag/Service > View Status

3.5 Repair and Replacement

There are no user-replaceable components on printed circuit assemblies, and all other spare components for the Model 1700 or Model 2700 transmitter must be purchased from Micro Motion. Any failures that are detected and that compromise functional safety should be reported to the Product Safety Officer within Micro Motion (see Section 5). When replacing the Coriolis sensor or the Model 1700 or Model 2700 transmitter, the procedures in the applicable installation manual should be followed. The user is responsible for maintaining adequate risk reduction for the Safety Instrumented Function during repair and replacement.

3.6 Firmware Update

In case firmware updates are required, they will be performed at the factory or by a Micro Motion certified service technician. The user will not be required to perform any firmware updates.

4 Operating Constraints

4.1 Safety Accuracy

The Coriolis flowmeter with a Model 1700 or Model 2700 transmitter has a specified safety accuracy of 2%. This means that internal component failures are listed in the device failure rate if they will cause an error of 2% or greater.

4.2 Diagnostic Response Time

The Coriolis flowmeter with a Model 1700 or Model 2700 transmitter will report an internal failure within 5 minutes of fault occurrence (worst case).
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4.3 Startup Time

The Model 1700 or Model 2700 transmitter will generate a valid signal within 16 seconds of power-on startup.

4.4 Reliability Data and Lifetime Limit

A detailed Failure Mode, Effects, and Diagnostics Analysis (FMEDA) report is available from Micro Motion. This report details all failure rates and failure modes, common cause factors for applications with redundant devices and the expected lifetime of the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter.
The Coriolis flowmeter with a Model 1700 or Model 2700 transmitter is certified for applications up to SIL2 for use in a simplex (1oo1) configuration, depending on the PFD Safety Instrumented Function.
The development process of the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter is certified up to SIL3, allowing redundant use of the transmitter up to this Safety Integrity Level, depending on the PFD
When using the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter in a redundant configuration, a common cause factor should be included in reliability calculations. For details, see the FMEDA report.
The reliability data listed in the FMEDA report is valid only for the useful lifetime of the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter. The failure rates of the Coriolis flowmeter with a Model 1700 or Model 2700 transmitter may increase sometime after this period. Reliability calculations based on the data listed in the FMEDA report for mission times beyond the lifetime may yield results that are too optimistic, i.e., the calculated Safety Integrity Level will not be achieved.
calculation of the entire Safety Instrumented Function.
AV G
calculation of the entire
AV G

4.5 Environmental Limits

The environmental limits of the Model 1700 or Model 2700 transmitter are specified in Micro Motion Model 1700 and Model 2700 Transmitters: Installation Manual.
The environmental limits of the sensor are specified in the sensor’s product data sheet.

4.6 Application Limits

The application limits of the Model 1700 or Model 2700 transmitter are specified in Micro Motion Model 1700 and Model 2700 Transmitters: Installation Manual. If the transmitter is used outside of
the application limits, the reliability data referenced in Section 4.4 becomes invalid.
The application limits of the sensor are specified in the sensor’s product data sheet.

5 Product Safety Officer

Any failures that are detected and that compromise functional safety should be reported to the Product Safety Officer within Micro Motion. Please contact Micro Motion or Emerson Process Management customer service. Customer service is available 24 hours a day, seven days a week. Contact information is provided on the back cover of this manual.
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+1 800-522-6277
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Micro Motion United Kingdom
Emerson Process Management Limited Horsfield Way Bredbury Industrial Estate Stockport SK6 2SU U.K. T +44 0870 240 1978 F +44 0800 966 181
©2014 Micro Motion, Inc. All rights reserved. P/N 20004482, Rev. BB
*20004482*
For the latest Micro Motion product specifications, view the PRODUCTS section of our web site at www.micromotion.com
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