šŸ”„šŸ”„ Donā€™t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

šŸ”
BS EN IEC 62828-1:2018

BS EN IEC 62828-1:2018

$215.11

Reference conditions and procedures for testing industrial and process measurement transmitters – General procedures for all types of transmitters

Published By Publication Date Number of Pages
BSI 2018 92
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

This Part of IEC 62828 establishes a general framework for defining reference conditions and test procedures applicable to all types of industrial and process measurement transmitters (PMTs) used in measuring and control systems for industrial process and machinery. These reference test conditions are divided into ā€œstandard reference conditionsā€, which apply when determining the accuracy of measurement, and ā€œambient and process reference conditionsā€, which are used to assess the influence of external quantities on the measurement.

For the purpose of this document, an analogue PMT is a process measurement transmitter with an analogue current or voltage output, irrespective of the technology adopted and the complexity of the circuitry. All the other process measurement transmitters, with digital output only or with hybrid analogue and digital output (e.g. HARTĀ®), are considered to be digital PMTs.

For general test procedures, reference is made to IEC 62828-1, which is applicable to all types of industrial and process measurement transmitters.

Additional specific test procedures for given types of PMTs (pressure, temperature, level, flow) are covered by other parts of this series.

NOTE 1 In industrial and process applications, to indicate the process measurement transmitters it is common also to use the terms ā€œindustrial transmittersā€, or ā€œprocess transmittersā€.

NOTE 2 For better clarity, when the complete definition ā€œindustrial and process measurement transmitterā€ makes the sentence too long in this document, the short term ā€œtransmitterā€ is used instead.

Proximity devices with analogue output are excluded from the scope of this document.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 English
CONTENTS
13 FOREWORD
15 INTRODUCTION
16 1 Scope
2 Normative references
18 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.1.1 Terms related to accuracy
23 3.1.2 Terms related to the uncertainty
24 3.1.3 Terms regarding operation and practical installation
25 Figures
Figure 1 ā€“ Example of limit operation region in terms ofoutput load resistance versus supply voltage
26 3.1.4 Terms related to test procedures
3.2 Abbreviated terms
3.3 Reference to CDD
27 4 General description of the PMT
5 Reference test conditions
5.1 General
Figure 2 ā€“ Block diagram of a generic PMT
28 5.2 Standard reference test conditions
5.2.1 General
5.2.2 Environmental test conditions
5.2.3 Power supply conditions
5.2.4 Load conditions
5.2.5 Mounting positions
Tables
Table 1 ā€“ Environmental test conditions
29 5.3 Reference test conditions for ambient and process quantities influencing operation
5.3.1 General
5.3.2 Process conditions
5.3.3 Environmental atmospheric conditions
30 5.3.4 Mechanical vibration
Table 2 ā€“ Common ambient temperatures ranges
Table 3 ā€“ Common ambient relative humidity ranges
31 5.3.5 Shock, drop and topple
5.3.6 Power supply
5.3.7 Electromagnetic compatibility (EMC)
Table 4 ā€“ Vibration test levels
Table 5 ā€“ Power supply ranges for voltage and frequency
32 5.4 Reference design criteria
5.4.1 General
5.4.2 Enclosure protection against solid, liquid (IP) and impact (IK)
5.4.3 Enclosure protection against corrosive and erosive influences
5.4.4 Electrical safety (insulation resistance, dielectric strength)
5.4.5 Hazardous environment (for application in explosive atmosphere)
5.4.6 Functional safety
6 Test procedures
6.1 General
6.1.1 Overview
33 6.1.2 Classification of the tests
34 6.1.3 Preparation of the tests
Table 6 ā€“ Example of number of measurement cycles andnumber and position of test points
Table 7 ā€“ Example of settings of span and lower range value adjustmentsfor analogue devices
35 6.1.4 Preliminary assessment
36 Table 8 ā€“ Checklist for assessing functionality
37 Table 9 ā€“ Checklist for assessing configurability
38 Table 10 ā€“ Checklist for assessing hardware configuration
Table 11 ā€“ Checklist for assessing adjustment and tuning procedures
39 Table 12 ā€“ Checklist for assessing operability
40 Table 13 ā€“ Checklist for assessing dependability
41 Table 14 ā€“ Checklist for assessing manufacturerā€™s support
Table 15 ā€“ Example of functions listing for a temperature compensatedsingle variable PMT (differential pressure)
42 6.2 Type tests at standard reference test conditions
6.2.1 General
6.2.2 Accuracy and related factors
Table 16 ā€“ Example of functions listing for a temperature compensated multi-variable PMT (differential pressure plus pressure and temperature)
45 Table 17 ā€“ Example table of PMT errors
46 Figure 3 ā€“ Error curves corresponding to the example of Table 17
48 6.2.3 Static behaviour
51 6.2.4 Dynamic behaviour
52 Figure 4 ā€“ Example of responses to a step input with overshoot
53 Figure 5 ā€“ Example of responses to a step input without overshoot
54 Figure 6 ā€“ Example 1 of frequency response
55 Figure 7 ā€“ Example 2 of frequency response
56 6.3 Type tests at operating reference test conditions
6.3.1 General
6.3.2 Ambient temperature effects
57 6.3.3 Ambient relative humidity effects
Figure 8 ā€“ Example of diagram of the compensation options
58 6.3.4 Vibration effects
60 6.3.5 Shock, drop and topple
6.3.6 Accelerated operational life test
6.3.7 EMC tests
61 6.3.8 Further test procedures
6.3.9 Additional tests for digital transmitters
62 Figure 9 ā€“ Levels of device compatibility from IEC 61804-2
63 6.4 Routine tests
6.5 Acceptance, integration, periodic and maintenance tests
6.5.1 General
6.5.2 Periodical verification
6.5.3 Periodical calibration
7 Test report and technical documentation
7.1 Test report
64 7.2 Technical documentation
7.3 Total probable error
65 Annex A (informative)General description of a PMT
A.1 General description of a PMT
Figure A.1 ā€“ Schematic block diagram of an analogue industrialand process measurement transmitter (example)
66 Figure A.2 ā€“ Schematic block diagram of an intelligent industrialand process measurement transmitter (example)
67 A.2 Sensor subsystem
A.3 Data processing
A.4 Output subsystem
A.5 Human interface
68 A.6 External system interface
A.7 Power supply assembly
69 Annex B (informative)Tests at the standard reference conditions
Table B.1 ā€“ Summary of the tests at the reference conditions
70 Annex C (informative)Tests at ambient and process reference conditionsfor influence quantities
Table C.1 ā€“ Summary of the tests for influence quantities at the operating conditions
71 Annex D (informative)Function block testing
D.1 General
D.2 General qualitative checks
D.3 Time-dependent function blocks
D.4 Time-independent function blocks
72 Annex E (informative)Measurement uncertainty
E.1 Example of determination of the measurement uncertainty
E.2 Single values influencing the uncertainty measurement
E.3 Estimation of standard measurement uncertainty (u)
E.4 Combined standard measurement uncertainty (uc)
E.5 Expanded measurement uncertainty (U)
73 Annex F (informative)Dependability testing method
F.1 General
F.2 Design analysis
F.3 Reference conditions
74 Figure F.1 ā€“ Schematic block diagram of an intelligent industrialand process measurement transmitter (example)
75 F.4 Fault injection test for internal PMT failures
Figure F.2 ā€“ Test tool for low impedance circuits and shared circuits
76 F.5 Observations
F.5.1 General
F.5.2 Reporting and ranking of fault behaviour
77 Figure F.3 ā€“ Matrix for reporting fault behaviour
78 F.6 Human faults
F.6.1 Mis-operation test
F.6.2 Maintenance error test
Figure F.4 ā€“ Ranking of various types of failure modes
79 F.6.3 Expectations and reporting
80 Annex G (informative)Throughput testing for digital PMT
G.1 General
Figure G.1 ā€“ PMT in stand-alone configuration
81 G.2 PMT throughput in stand-alone conditions
G.2.1 Reference conditions
G.2.2 Test conditions
G.2.3 Observations and measurements
Figure G.2 ā€“ Example of a PMT as a participant in a fieldbus installation
82 G.3 Throughput in a fieldbus configuration
G.3.1 Reference conditions
G.3.2 Test conditions
83 G.3.3 Observations and measurements
G.3.4 Precautions
84 Annex H (informative)FAT, SAT and SIT
H.1 General
H.2 Factory acceptance tests FAT (accuracy measurement and others)
H.3 Site acceptance tests SAT (visual inspection and calibration test)
H.4 Site integration tests SIT (additional test for communications)
85 Annex I (informative)Technical documentation
I.1 General
I.2 Technical datasheet
86 Table I.1 ā€“ Example of compilation of technical data for a generic PMT
88 I.3 User manual
I.4 Safety manual
I.5 Commissioning, periodic and maintenance tests
I.5.1 General
I.5.2 Storage conditions
I.5.3 Transportation conditions
I.5.4 Mounting position
89 I.5.5 Process connections
I.5.6 Mechanical connections
I.5.7 Output connections
I.6 EC declaration of conformity
I.7 Certificates for application in hazardous area
I.8 Calibration certificates
I.9 Spare parts list
I.10 Marking
90 Annex J (informative)Total Probable Error calculation
91 Bibliography

Related products

BS EN IEC 62828-1:2018
$215.11