Functional Safety KFD2-VR4-Ex1.26
Product Description
2018-03
7
2 Product Description
2.1 Function
This isolated barrier is used for intrinsic safety applications.
It provides a floating output to power a vibration sensor (e. g. Bently Nevada) or an
acceleration sensor in a hazardous area and transfers the voltage signal from that sensor
to the non-hazardous area.
The device is designed to provide the power supply to the vibration sensors. Depending
on connection the barrier provides 3.6 mA, 5.3 mA, or 8.9 mA supply current for
2-wire sensors, or 18 V at 20 mA for 3-wire sensors.
2.2 Interfaces
The device has the following interfaces.
• Safety relevant interfaces: input, output
• Non-safety relevant interfaces: power supply
2.3 Marking
2.4 Standards and Directives for Functional Safety
Device-specific standards and directives
System-specific standards and directives
Note!
For corresponding connections see datasheet.
Pepperl+Fuchs GmbH
Lilienthalstraße 200, 68307 Mannheim, Germany
Internet: www.pepperl-fuchs.com
KFD2-VR4-Ex1.26 Up to SIL 2
Functional safety IEC/EN 61508, part 1 – 2, edition 2000:
Functional safety of electrical/electronic/programmable
electronic safety-related systems (manufacturer)
Functional safety IEC/EN 61511, part 1 – 3, edition 2003:
Functional safety – Safety instrumented systems for the
process industry sector (user)
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