gefran KS Series, Руководство по электромонтажу

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85194E_MAN_Electrical Installation for Probes_KS and KS-SIL2 Series_08-2022_ENG
5. Functional Safety (content according to IEC/EN 62061 paragraph 7)
5.1 Application
The pressure sensor KS 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 Value Measuring Unit
Architecture 1oo1 --
HFT 0 --
b
factors Not relevant --
l
DD
Current output 1,56E-08 1/h
Voltage output 1,56E-08 1/h
Ratiometric Voltage Output
1,65E-08 1/h
l
DU
Current output 6,53E-08 1/h
Voltage output 6,62E-08 1/h
Ratiometric Voltage Output
6,74E-08 1/h
SFF
Current output 90,47 %
Voltage output 90,32 %
Ratiometric Voltage Output
90,30 %
PFHD
Current output 6,53E-08 1/h
Voltage output 6,62E-08 1/h
Ratiometric Voltage Output
6,74E-08 1/h
SIL 2 --
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.
Fig. 1: application diagram A
VOLTAGE OUTPUT AND RATIOMETRIC
CURRENT 2-WIRE OUTPUT