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Specification & Description
| Specification | Description |
|---|---|
| Part Number | KFD2-CD2-EX2 |
| Manufacturer | Pepperl + Fuchs |
| Signal Type | Analog Output |
| Supply Voltage | 20 ... 35 V DC |
| Power Consumption | 1.8 W at 20 mA |
| Input Connection | Terminals 7-, 8+; 10-, 11+ |
| Input Voltage Drop | ≤ 2.5 V, equivalent to 125 Ω at 20 mA |
| Input Current | 4 ... 20 mA limited to approx. 25 mA |
| Output Connection | Terminals 1+, 2-; 4+, 5- |
| Output Current | 4 ... 20 mA |
| Load Resistance | 0 ... 700 Ω |
| Transfer Characteristics | Deviation after calibration at 20 °C (68 °F): ≤ 10 µA |
| Ambient Temperature | -20 ... 60 °C (-4 ... 140 °F) |
| Degree of Protection | IP20 |
| 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 |
| Safety Integrity Level (SIL) | SIL 2 |
| Approvals | EC-Type Examination Certificate, IECEx approval, UL approval |
| Zone Classification | Suitable for Zone 0, 1, 2; Division 1, 2 hazardous areas |
| Electrical Isolation | Input/power supply functional insulation, rated insulation voltage 50 V AC |
| Commodity Code | 853710 |
The Pepperl + Fuchs KFD2-CD2-EX2 is a high-performance isolated barrier designed for intrinsic safety applications within industrial settings. This robust component is engineered to facilitate the transfer of 4 mA to 20 mA signals from safe areas to I/P converters, electrical valves, and positioners located in hazardous areas. It boasts a 2-channel isolated barrier system and is powered by a 24 V DC supply via the Power Rail.
With an impressive accuracy of 0.05%, the KFD2-CD2-EX2 ensures precise signal transmission and is capable of driving current outputs up to a 700Ω load. This makes it an ideal choice for applications requiring reliable and accurate control over actuators and instrumentation in potentially explosive environments.
The unit is designed to present a similar resistance to the control side in the event of an open or high resistance field circuit, which allows for line fault detection by the control system. This feature enhances the safety and reliability of the system it is integrated into. Additionally, the device is compliant with SIL 2 according to IEC 61508, indicating a high level of functional safety.
Constructed with a focus on durability and ease of use, the KFD2-CD2-EX2 comes with removable terminals for straightforward installation and maintenance. Its compact dimensions and IP20 degree of protection make it suitable for mounting on a 35 mm DIN rail, ensuring it fits seamlessly into a variety of control cabinets and panels.
The KFD2-CD2-EX2 is a testament to Pepperl + Fuchs' commitment to quality and safety in the field of process automation and control. It is a reliable solution for professionals looking to maintain operational integrity and safety in challenging industrial environments.
Commonly Asked Questions
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Frequently Asked Questions
What is the function of the KFD2-CD2-EX2?
The KFD2-CD2-EX2 is a 2-channel isolated barrier used for intrinsic safety applications. It is designed to transmit a 4 mA to 20 mA signal from a safe area to I/P converters, electrical valves, and positioners located in hazardous areas.
Can the KFD2-CD2-EX2 be used in hazardous areas?
Yes, the KFD2-CD2-EX2 is suitable for use in hazardous areas and is certified for intrinsic safety with appropriate EC-Type Examination Certificates.
What type of power supply is required for the KFD2-CD2-EX2?
The device requires a 24 V DC supply, which can be provided through a Power Rail or directly to the terminals 14+ and 15-.
What is the load capacity for the current output of the KFD2-CD2-EX2?
The current output of the KFD2-CD2-EX2 can handle a load of up to 700 ohms.
What is the accuracy level of the KFD2-CD2-EX2?
The KFD2-CD2-EX2 offers an accuracy of 0.05%, ensuring precise signal transmission.
Is the KFD2-CD2-EX2 compliant with any safety integrity levels?
Yes, the KFD2-CD2-EX2 is compliant with up to SIL 2 according to IEC 61508 for functional safety.
What are the ambient temperature limits for operating the KFD2-CD2-EX2?
The KFD2-CD2-EX2 can operate within an ambient temperature range of -20 to 60 degrees Celsius (-4 to 140 degrees Fahrenheit).
What type of signal does the KFD2-CD2-EX2 handle?
The KFD2-CD2-EX2 is designed to handle an analog output signal in the form of a current ranging from 4 to 20 mA.
What is the degree of protection provided by the KFD2-CD2-EX2?
The KFD2-CD2-EX2 has a degree of protection rated at IP20.
Can the KFD2-CD2-EX2 be mounted on a DIN rail?
Yes, the KFD2-CD2-EX2 is designed for mounting on a 35 mm DIN rail according to EN 60715:2001.
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