Pepperl+Fuchs KFD2-UT2-Ex1 Universal Temperature Converter for Multi-Sensor Input, PACTware Configuration, and 0/4-20 mA Output

Pepperl+Fuchs KFD2-UT2-Ex1 is a one-channel isolated barrier that converts low-level temperature and resistance signals from a hazardous area into a proportional safe-area current. Its value is flexibility: one module can be configured for a broad selection of RTDs, thermocouples, potentiometers, or millivolt inputs rather than being dedicated to only one sensor type.

Choose the Input First, Then Build the Measurement Range

The module supports common Pt, Ni, Cu, and GOST resistance sensors in two-, three-, or four-wire arrangements. It also accepts thermocouple types B, E, J, K, L, N, R, S, T and selected regional types, plus potentiometer and voltage inputs. This flexibility is useful in plants where the same cabinet platform must handle many temperature points, but every channel still needs its own documented configuration.

PACTware Turns the Hardware into a Defined Channel

KFD2-UT2-Ex1 is configured with PACTware. The technician selects the sensor, range, wiring method, cold-junction compensation, output scaling, and fault behavior. The current output can operate as a source or sink and can be set for 0-20 mA or 4-20 mA. For thermocouple loops, the removable K-CJC terminal accessory can provide internal cold-junction compensation when required by the design.

Fault Handling Is Part of the Measurement Design

Line-fault detection and sensor-burnout monitoring allow KFD2-UT2-Ex1 to identify conditions such as an open thermocouple or a broken RTD lead. A red fault indication supports local troubleshooting, while a collective error message can be carried through the Power Rail. The analog output can be driven to a defined upscale or downscale level so the receiving control system can distinguish a failed sensor from a valid process value.

A Replacement Is Not Complete Until the Configuration Is Restored

Installing a new module with the same model number does not automatically reproduce the old channel. Before shutdown, export or document the PACTware settings, terminal connections, sensor data, output scaling, and alarm direction. After replacement, verify the reading at several known points and test the selected sensor-fault response. For thermocouples, confirm polarity and cold-junction compensation as part of commissioning.

KFD2-UT2-Ex1 is frequently used for reactor and vessel temperature, furnace monitoring, heat exchangers, pipelines, tank farms, pharmaceutical processes, food production, power generation, water treatment, and other systems where hazardous-area sensors must be separated from safe-area control equipment. Its SIL 2 capability may also be relevant when the complete safety function is designed and validated accordingly.

Before Ordering

Confirm the exact model KFD2-UT2-Ex1, sensor type, measuring range, output mode, supply arrangement, hazardous-area approval, quantity, and delivery deadline. When replacing an installed module, include a label photograph and a copy of the current configuration where possible.

Other hot sales models for your reference: KFD2-UT2-Ex1-1, KFD2-UT2-Ex2, KFD2-UT-Ex1, KCD2-UT2-Ex1, KFD2-GUT-Ex1.D, KFU8-GUT-Ex1.D, KFD2-STC5-Ex1, KFD2-STC5-Ex2, KCD2-STC-Ex1, KFD2-CRG2-Ex1.D, KFD2-SR2-Ex2.2S, KFD2-EB2, KFD2-EB2.SP, K-CJC-BU, and K-ADP-USB.

Sunup-MTL supports global sourcing of Pepperl+Fuchs temperature converters, K-System isolated barriers, Power Rail accessories, and industrial automation spare parts.