SCU 200
Control and signal conditioning unit for 4...20 mA field devices
- Ideal companion for level and pressure transmitters
- Features totaliser, pulse output and pump control capabilities
- Power supply for 2- and 4-wire sensors
- Output: 1 x 4…20 mA (active), 3x relay (SPDT);
Input: 1 x 4…20 mA, 3 x remote control inputs
Overview
The SCU 200 is a control and signal conditioning unit for all 4…20 mA field devices, such as radar and guided radar level transmitters or pressure transmitters. It is designed to process measurement values for pump control or signalling, making it particularly useful in water and wastewater applications involving pumping stations or sewage sumps. Thanks to its integrated totaliser and volume conversion functionality, the controller is also an ideal companion for open channel flow measurement when used with the OPTIWAVE 1540 80 GHz radar. Additionally, it is well-suited for displaying and controlling silo or tank levels.
The SCU 200 combines control electronics with a configurable graphical display, making it especially effective for use with sensors that lack built-in displays or are installed in hard-to-access locations. It can power both 2-wire and 4-wire sensors, offering a robust and cost-effective alternative to complex PLC systems in basic applications. Unlike PLCs, the SCU 200 requires no time-consuming setup or additional power supply. Its integrated power electronics include a 4…20 mA output and up to three relays, eliminating the need for additional control cabinets or relay modules. With its 4…20 mA inputs, the SCU 200 supports the integration of virtually any 4…20 mA device, including flow instrumentation.
Features & Options
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- Controller for processing measurement values and signalling
- Ideal companion for OPTIWAVE radar level transmitters, OPTIFLEX guided radar level transmitters and OPTIBAR pressure transmitters
- Cost-effective alternative to complex PLC units for control tasks in basic applications
- Wide range of functionalities, incl. 2 x totaliser, pulse output, sampling or pump control feature
- Configurable display with colour changing LED backlight and clearly labelled buttons for easy navigation through the menu items
- Featuring trend indication, relay status and red flashing in case of an alarm
- Extensive settings for switching points and warning functions (incl. 4 alarms)
- Flexible adjustment of the analogue start and end points for optimal adaptation of the measurement range
- Two display areas for different measurement values
- Bargraph indication with 20 segments
- No need for additional power electronics
- Provides power supply for the field device used
- Dedicated software interface for parameterisation via USB-C cable
- Easy wiring due to clearly readable and understandable markings on the input and output terminals
- Robust GRP housing for wall-, field- or panel-mount installation
- Cable gland included in the scope of delivery
