Pepperl+Fuchs KFD2-ER-1.6

Conductivity Switch Amplifier
SKU: KFD2-ER-1.6
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  • 1-channel signal conditioner

  • 24 V DC supply (Power Rail)

All description
Manufacturer: Pepperl+Fuchs
Description:

The Conductivity Switch Amplifier is a key component in the Pepperl+Fuchs range of intrinsic safety barriers, designed to ensure reliable signal conditioning in hazardous environments. This 1-channel signal conditioner effectively amplifies and processes signals from conductivity sensors, converting them into a standardized output suitable for further processing or monitoring. With a 24 V DC supply, it integrates seamlessly into existing Power Rail systems, providing a compact and efficient solution for various industrial applications.

Commonly used in industries such as chemical processing, water treatment, and oil and gas, the Conductivity Switch Amplifier facilitates the safe measurement of liquid levels and the detection of conductive materials. Its intrinsic safety design ensures that it can operate in potentially explosive atmospheres without posing a risk, making it an essential choice for applications that require high levels of safety and reliability.

Mounting

on 35 mm DIN mounting rail acc. to EN 60715:2001

Dimensions

20 x 107 x 115 mm (0.8 x 4.2 x 4.5 inch) , housing type B1

Control input

min./max. control system: terminals 1, 2, 3

on/off control system: terminals 1, 3

Energized/De-energized delay

approx. 1 s / approx. 1 s

Labeling

space for labeling at the front

Open circuit voltage/short-circuit current

approx. 10 V AC (approx. 1 Hz) / approx. 5 mA

Output/power supply

reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Configuration

via DIP switches

via potentiometer

Mass

approx. 110 g

Connection side

field side

Connection

terminals 1 (mass), 2 (min), 3 (max)

Control elements

switch S1

Position I open circuit current: In the open circuit current principle, the relay becomes active when the limit is reached.

Position II closed circuit current: In closed circuit current principle, the relay is activated when power is applied. The relay is deactivated when the limit is reached.

Connection

Power Rail or terminals 11+, 12-

Rated voltage

20 … 30 V DC

Connection

terminals 7, 8, 9

Supplementary information

Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Degree of protection

IEC 60529:2001

Connection side

control side

Signal type

Digital Input

Connection

screw terminals , max. 2.5 mm2

Electromagnetic compatibility

NE 21:2006

Ambient temperature

-20 … 60 °C (-4 … 140 °F)

Response sensitivity

5 … 150 kandOmega; , adjustable via potentiometer (20 turns)

Input/power supply

reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Control elements

DIP-switch

potentiometer

Degree of protection

IP20

Display elements

LEDs

Input/Output

reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Output

1 changeover contact

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