Servomex 2223A Скачать руководство пользователя страница 1 | Manualshive

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Servomex 2223A Скачать руководство пользователя страница 1

Part Number:

02223006A

Revision:

0

Language:

UK English

Functional Safety Manual

SERVO

TOUGH

OxyExact

2223A Transmitter

PROCESS ANALYSERS

1
2
3
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Содержание 2223A

Страница 1: ...Part Number 02223006A Revision 0 Language UK English Functional Safety Manual SERVOTOUGH OxyExact 2223A Transmitter PROCESS ANALYSERS...

Страница 2: ...This page intentionally blank...

Страница 3: ...B subsystems 3 2 7 Hardware fault tolerance HFT 4 2 8 Safe failure fraction SFF 4 2 9 PFDAVG 4 2 10 Mean time to repair MTTR 4 2 11 Proof test 4 2 12 Safety integrity level SIL 5 3 SAFETY INSTRUCTION...

Страница 4: ...2223A Oxygen Transmitter Functional Safety Manual ii 02223006A Revision 0 This page intentionally blank...

Страница 5: ...r as inputs from external measurements The measurement is provided as a mA output Fault indications are provided by a solid state relay output and by an out of range current from the mA output Additio...

Страница 6: ...2223A Oxygen Transmitter Functional Safety Manual 2 02223006A Revision 0 This page intentionally blank...

Страница 7: ...diagnostic tests proof tests operator intervention or through normal operation 2 6 Type A and type B subsystems This relates to the complexity of the subsystem and the degree to which it is understood...

Страница 8: ...AVG The probability of a dangerous failure on demand This is intended to apply to systems operating in a low demand mode where the safety function is required on average a maximum of once per year A t...

Страница 9: ...ardware failures and so covers the following characteristics Product type A or B Hardware fault tolerance Safe failure fraction Average probability of a dangerous failure of the safety function on dem...

Страница 10: ...2223A Oxygen Transmitter Functional Safety Manual 6 02223006A Revision 0 This page intentionally blank...

Страница 11: ...on The safety function of the 2223A Oxygen Transmitter is the measurement of oxygen concentration in a sample stream The dangerous failure is the failure to indicate this oxygen concentration to the p...

Страница 12: ...elect Transmitter Peripherals Enter the appropriate forms and ensure that the necessary settings are made as described below Note that it may be necessary to scroll the forms displayed on the control...

Страница 13: ...s should then be set as appropriate As an alternative to the internal flow sensor external devices may be used in conjunction with the external flow alarm inputs as described in the installation manua...

Страница 14: ...application the design of the overall safety instrumented system and the target SIL The recommended proof test interval is a maximum of one year If there are any transmitter fault conditions present...

Страница 15: ...layed is within an acceptable tolerance of the actual pressure 4 Calibrate the pressure sensor 5 Carry out a full low and high calibration of the oxygen measurement 6 Carry out pressure compensation c...

Страница 16: ...2223A Oxygen Transmitter Functional Safety Manual 12 02223006A Revision 0 This page intentionally blank...

Страница 17: ...2223A Oxygen Transmitter Functional Safety Manual A1 APPENDIX 02223006A Revision 0 13...

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