Functional Safety (Content According To Iec/En 62061 Paragraph 7); Application - gefran KH-SIL2 Series Manual Of Electrical Installation

5. Functional Safety (content according to IEC/EN 62061 paragraph 7)

The pressure sensor KH performs the following safety function:
correct reading and transduction of pressure to individuate overpressure. Reading and transduction is considered cor-
rect when it is within the specifications declared in the datasheet and in the Operating Manual.
The SIL parameters of the transducer are shown in the table below:
Parameter
Architecture
HFT
b factors
l DD
Current output
Voltage output
Ratiometric Voltage Output
l DU
Current output
Voltage output
Ratiometric Voltage Output
SFF
Current output
Voltage output
Ratiometric Voltage Output
PFH D
Current output
Voltage output
Ratiometric Voltage Output
SIL
The diagram "A" (Fig. 1) shows a possible application: the sensor detects the pressure and transduces it in an analog
electrical signal proportional to the value of the measured value; the SRP / CS compares the signal with the one set as
the alarm threshold: in case of exceeding the threshold it shall disable the elements of pressure generation.
6

5.1 Application

Not relevant
VOLTAGE OUTPUT AND RATIOMETRIC
CURRENT 2-WIRE OUTPUT
Fig. 1: application diagram A
85198C_Manual of Electrical Installation for Pressure Probes KH-SIL2-Mobyle-series_08-2028_ENG
Value
1oo1
0
1,56E-08
1,56E-08
1,65E-08
6,53E-08
6,62E-08
6,74E-08
90,47
90,32
90,30
6,53E-08
6,62E-08
6,74E-08
2
Measuring Unit
--
--
--
1/h
1/h
1/h
1/h
1/h
1/h
%
%
%
1/h
1/h
1/h
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