Functional Safety (Content According To Iec/En 62061 Paragraph 7); Application; Restrictions Of Use - gefran KS Series Manual

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

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
Architecture
HFT
b factors
l DD
Current output
Voltage output
l DU
Current output
Voltage output
SFF
Current output
Voltage output
PFH D
Current output
Voltage output
SILCL
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.
The device must only be used in accordance with these operating instructions for mechanical installation, electrical con-
nection, environmental conditions and use in order
to maintain the declared SIL. The sensors must be powered by non-distributed networks and in any case with a length
6

5.1 Application

Value
1oo1
0
Not relevant
1,56E-08
1,56E-08
6,53E-08
6,62E-08
90,47
90,32
6,53E-08
6,62E-08
2
VOLTAGE OUTPUT
CURRENT 2-WIRE OUTPUT
Fig. 1: application diagram A

5.2 Restrictions of use

85194D_MAN_Electrical Installation for Probes_KS and KS-SIL2 Series_11-2021_ENG
Measuring Unit
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1/h
1/h
1/h
1/h
%
%
1/h
1/h
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