safety integrity level (SIL) certificate

Document Type Information
Details and background about this document type.
Description
This document shall verify the level of the safety integrity level (SIL) and shall include necessary performance data according to authority regulations.
Synonyms
  • CFIHOS ID
    CFIHOS-70000433
Equipment
Equipment that requires this document type.

A transmitter that is intended to measure and transmit conductivity.

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A mechanical switching device having only one position of rest, operated otherwise than by hand, capable of making, carrying and breaking currents under normal circuit conditions including operating overload conditions.

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A terminal box that is used as accommodation for control function circuits.

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An instrument panel containing a set of indicating devices and control units required for operation of a system or part of it.

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A valve that can be used to modify (regulate) the fluid flow rate in a process control system. It usually includes an actuator, which responds to a signal from the controlling system and changes the position of the flow controlling element in the valve.

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A regulator that operates automatically to affect a controlled variable by comparing the value of the controlled variable with the value of a reference variable in order to reduce the difference between them.

An element located in a flowstream using the Coriolis principle to measure the flow.

A mass flow meter that uses the Coriolis principle to measure a mass flow rate through the meter.

A detecting element that is a piece of suitable metal meant to corrode and give an indication of the corrosion rate.

A detecting instrument intended to measure, indicate and/or produce a signal which represents the rate or degree of corrosion.

A transmitter that is producing a standardized output signal dependent of a received input signal from a corrosion sensor.

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A detecting instrument that counts, especially an electronic or mechanical device that automatically counts occurrences or repetitions of phenomena or events.

A signal converter that is intended to convert one current signal to another current signal.

A signal converter that is intended to convert an analogue signal (4 - 20 mA) to a proportional linear pneumatic output signal.

A signal converter that is intended to convert a current input signal to a proportional voltage output signal.

An instrument transformer in which the secondary current, in normal conditions of use, is substantially proportional to the primary current and differs in phase from it by an angle which is approximately zero for an appropriate direction of the connections.

A transmitter that transmits an analogue electrical current.

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A device that damps, typically a valve or plate (as in the flue of a furnace) for regulating the draft, or a device to stop vibration, typically a shock absorber or snubber.

An analysing instrument intended to determine the density of a substance.

An analysing instrument intended to determine the dew point of a substance.

A facility for measuring dew point and transmitting a signal representing the measured temperature.

A flow transmitter providing an output signal that is proportional to the flow inputs from a differential pressure flow meter.

A gauge that is intended for measuring and indicating pressure differences.

A level transmitter that is measuring liquid level by sensing pressure difference between two points, e.g. the hydrostatic pressure at the bottom of a tank to the atmosphere pressure.

A pilot switch intended to switch or give an on/off signal when the measured differential pressure has reached a pre-set value.