Pepperl+Fuchs
217734
KFD2-ER-2.W.LB
Pepperl+Fuchs 217734
KFD2-ER-2.W.LB
Conductivity Switch Amplifier
Description
This signal conditioner provides the AC measuring voltage for the level sensing electrodes. 2-channel signal conditioner, 24 V DC supply (Power Rail), Level sensing input, Adjustable range 1 kΩ .. 150 kΩ, Relay contact output, Adjustable time delay up to 10 s, Minimum/maximum control, Line fault detection (LFD)pa. Once the measured medium reaches the electrodes, the unit reacts by energizing a form C changeover relay contact. The module is voltage and temperature stabilized and guarantees a defined switching characteristic. It can be used for on/off control or minimum/maximum control. A signal delay feature is available and is adjustable between 0.5 s and 10 s. This module can also monitor the field circuit for lead breakage (LB). LB is indicated by a red LED. This function can be deactivated with DIP switches.
Technical parameters
| Signal type: | Digital Input |
| Connection: | Power Rail or terminals 14+, 15- |
| Rated voltage: | 20 ... 30 V DC |
| Rated current: | 30 ... 40 mA |
| Connection side: | field side |
| Connection: | terminals 1, 4 (mass), 2, 5 (min), 3, 6 (max) |
| Control input: | min./max. control system: terminals 1, 2, 3; 4, 5. 6 on/off control system: terminals 1, 3; 4, 6 |
| Response sensitivity: | 1 ... 150 kΩ , adjustable via potentiometer |
| Connection side: | control side |
| Connection: | terminals 7, 8, 9; 10, 11, 12 |
| Switching power: | max. 192 W , 2000 VA |
| Output: | relay |
| Contact loading: | 253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load |
| Time constant for signal damping: | 0.5 s, 2 s, 5 s, 10 s |
| Input/Output: | basic insulation according to EN 50178, rated insulation voltage 253 Veff |
| Input/power supply: | basic insulation according to EN 50178, rated insulation voltage 253 Veff |
| Output/power supply: | basic insulation according to EN 50178, rated insulation voltage 253 Veff |
| Display elements: | LEDs |
| Control elements: | DIP-switch potentiometer |
| Configuration: | via DIP switches via potentiometer |
| Labeling: | space for labeling at the front |
| Electromagnetic compatibility: Directive 2004/108/EC: | EN 61326-1:2006 |
| Low voltage: Directive 2006/95/EC: | EN 50178:1997 |
| Insulation coordination: | EN 50178:1997 |
| Galvanic isolation: | EN 50178:1997 |
| Electromagnetic compatibility: | NE 21:2006 |
| Degree of protection: | IEC 60529:2001 |
| Ambient temperature: | -20 ... 60 °C (-4 ... 140 °F) |
| Degree of protection: | IP20 |
| Connection: | screw terminals , max. 2.5 mm2 |
| Mass: | approx. 150 g |
| Dimensions: | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 |
| Mounting: | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Supplementary information: | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
Logistic parameters
| ECCN: | |
| Country of Origin: | SG |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |