EASYLAB TCU3

Application

• Electronic controller Type EASYLAB TCU3 for the control of volume flow rates in fume cupboards and for the control of supply and extract air in laboratories; can also be used as an attachment for air terminal units
• For use in laboratories, clean rooms in the pharmaceutical and semiconductor industries, operation theatres, intensive care units, and offices with very demanding control requirements
• Fast and stable control of the volume flow rate for fume cupboards, and of room supply air and room extract air
• Fume cupboard control tested to EN 14175, part 6, for fume cupboards of all brands
• Controllers can be used individually or combined with other controllers for a complete room solution
• System solution for the volume flow control in rooms (room balance)
• For extract air led areas such as laboratories
• For supply air led areas such as clean rooms
• Numerous options for the integration of additional volume flows into the room balance
• Room pressure control or duct pressure control as cascade of differential pressure and volume flow rate
• Interface to the central BMS, voltage signals 0 – 10 V or with expansion modules for LonWorks, BACnet, Modbus

Special characteristics

• Plug and play communication system with automatic controller identification, no component addressing required
• Modular system for functional expansion
• Connections and status displays on the outside of the controller casing
• Project-specific adjustments are possible using adaptable control panel for fume cupboard and room
• Project-specific adjustments can be achieved with configurable special functions, monitoring, and alarm signalling
• Permanent function monitoring of the system and the connected sensors
• Very simple commissioning, configuration changes and diagnosis
• Centralised configuring and permanent signalling of room settings (room management function)
• EasyConnect configuration software enables interactive navigation (also wireless)
• Factory tested and configured with project-specific parameters

Equipment functions

Fume cupboard control

• FH-VS: Face velocity transducer – face velocity control
• FH-DS: Sash distance sensor – linear control strategy
• FH-DV: Sash distance sensor – safety-optimised control strategy
• FH-2P: 2 switching steps for on-site switch contacts
• FH-3P: 3 switching steps for on-site switch contacts
• FH-F: Volume flow rate constant value

Extract air controller / supply air controller

External volume flow rate setting

• EC/SC-E0: Volume flow rate default setting 0 – 10 V DC
• EC/SC-E2: Volume flow rate default setting 2 – 10 V DC

Without signalling

With switching steps for on-site switch contacts

• EC/SC-2P: 2 switching steps
• EC/SC-3P: 3 switching steps
• EC/SC-F: Volume flow rate constant value

Room control

Extract air led system for laboratories

• RS/LAB: Supply air control
• RE/LAB: Extract air control
• PC/LAB: Differential pressure control (supply air)

Supply air led system for clean rooms

• RS/CLR: Supply air control
• RE/CLR: Extract air control
• PC/CLR: Differential pressure control (extract air)

Parts and characteristics

• Ready-to-commission controller, as an attachment for air terminal units
• Static differential pressure transducer for rapid actual value measurement
• Fast-running high-precision actuator, running time for 90° is 3 s
• Microprocessor system with programme and system data stored in nonvolatile memory
• Double-stack terminal block for supply voltage connection
• Connections for two control panels
• Connection of communication line to plug socket or screw terminals
• Digital outputs with screw terminals
• Digital inputs with screw terminals or plug socket
• Analog inputs with screw terminals or plug socket
• Analog outputs with screw terminals or plug socket (actuator)
• Integral terminal resistor for the communication line
• Alarm indicator lights on both sides of the casing
• Status indicator lights (heartbeat, communication and terminal resistor)
• Equipment function FH-VS: Face velocity transducer VS-TRD for measuring the face velocity for fume cupboards
• Equipment function FH-DS, FH-DV: Sash distance sensor DS-TRD-01 for capturing the sash position of a fume cupboard

Attachments

Expansion modules are factory mounted or can be fitted at a later stage

• T: EM-TRF, power supply unit for connecting the controller to the 230 V AC mains voltage
• U: EM-TRF-USV, power supply unit for connecting the controller to the 230 V AC mains voltage and to ensure uninterrupted power supply
• Z: EM-AUTOZERO, automatic zero point correction for long-term stable volume flow rate measurement and hence reduced maintenance.
• L: EM-LON, LonWorks FTT-10A interface
• B: EM-BAC-MOD-01, interface configured for BACnet MS/TP
• M: EM-BAC-MOD-01, interface configured for Modbus RTU
• S: EM-LIGHT, wired socket (230 V) for the connection of lighting and for switching the lighting on/off using the control panel

Useful additions

• BE-SEG-**: Control panel for fume cupboard control
• BE-LCD-01: Control panel for fume cupboard control and room control
• TAM: Adapter module as an interface between fume cupboard control and room control, and to the central BMS
• Differential pressure transducers: Static differential pressure transducers for room pressure control or duct pressure control
• EasyConnect: Configuration software for the commissioning and diagnosis of EASYLAB components

Construction features

• Main PCB and expansion modules in one casing
• Controller casing is clip-fixed to the VAV terminal unit
• Controller casing can be opened without tools, except for TCU3 with EM-TRF or EM-TRF-USV
• Pin header socket for the connection of expansion modules
• Plug sockets for the most important connections on the outside of the casing
• Static differential pressure transducer with room air induction to protect the sensor

Materials and surfaces

• Casing made of ABS plastic, blue (RAL 5002)