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Controller SlimFLEX 5a

The cooling tower regulator SlimFLEX 5 continuously measures and controls conductivity and controls biocide metering, keeps pipework and heat exchangers clean and prevents legionella.

Product description

Controller SlimFLEX 5a, the entry level class for cooling water treatment, VDI 2047 Sheet 2 and BLMSchV 42-compliant, the innovative and flexible controller.

The SlimFLEX5a records all the important measuring parameters for cooling water treatment and controls functions necessary for smooth operation:

  • Time-dependent biocide metering (boost metering). Checks can be undertaken by measuring the ORP voltage in the cooling water.
  • Measurement of electrolytic conductivity – controls bleeding.
  • pH measurement with integrated PID controller Controls processes automatically to ensure that the specified values (e.g. pH: acid or alkaline) are maintained even in the event of interfering influences. more in the glossary.

Your benefits

  • A web interface for unit configuration and remote maintenance standard, Wi-Fi is optionally available
  • Forced bleeding: performs bleeding before biocide metering
  • Bleed lock: blocks bleeding after biocide metering has taken place
  • Operating status displayed by 6 status LEDs

Field of application

  • Control of bleeding in smaller evaporation cooling systems
  • Volume-proportional control or regulation of the metering of corrosion inhibitors, de-foamers and dispersants
  • Measurement and if necessary control of pH
  • Time-dependent metering of up to 2 biocides

    Technical Details

    • 6 digital inputs for contact water meter, flow detector and control signals
    • 6 status LEDs display the operating status
    • 5 flexible relay outputs: for setpoint-dependent flow volume-proportional or time-based control of actuators
    • Measured variables: Conductivity, pH, ORP

    Technical Data

    Measuring range

    Conductivity:

    With digital sensor CTFS at input A and B and via serial module D1: 0.1 - 10 mS/cm

    Via conductivity module L3 depending on sensor used (LMP, LFT): 50 µS/cm - 20 mS/cm

    Via mA module AA with the inductive conductivity sensor ICT: 8 to 2 mS/cm, 20 mS/cm, 200 mS/cm

    Connection type mV:

    pH: 0.00 ... 14.00

    ORP voltage: -1,500 ... +1,500 mV

    Type of connection mA (amperometric measured variables, measuring ranges according to sensors, 2 ppm, 10 ppm):

    Chlorine

    Chlorine dioxide

    Bromine

    Temperature:

    Via Pt 100/Pt 1000, measuring range 0 ... 150 °C

    Resolution

    pH: 0.01

    ORP voltage: 1 mV

    Temperature: 0.1 °C

    Amperometric analysis (chlorine etc.): 0.001/0.01 ppm, 0.01 vol.%, 0.1 vol.%

    Inputs and outputs

    3 plug-in module slots for 2-channel plug-in modules according to identity code

    1 mA input for any analogue signals

    5 output relays acting as changeover contacts, of which 3 are potential-free and 2 are AC/DC

    4 pulse frequency outputs for controlling metering pumps

    2 serial sensor inputs for CFTS conductivity sensors and CRS corrosion sensors

    8 digital control inputs for contact water meter, flow switch and pause for locking

    Accuracy

    0.3% based on the full-scale reading

    Temperature compensation

    Pt 100/Pt 1000 for pH

    Control characteristic

    P/PID control

    Electrical Connection

    90 – 253 V, 50/60 Hz, 25 VA, 24 V DC

    Field bus connection

    Modbus RTU, additional field buses via gateway

    Ambient temperature

    0 ... 50 °C (for use indoors or with a protective enclosure)

    Enclosure rating

    Wall-mounted: IP 67

    Tests and approvals

    CE, MET (corresponding to UL as per IEC 61010)

    Housing material

    PPE with flame-proof finish

    Dimensions H x W x D

    240 x 360 x 110 mm

    Description of modules

    Module AA mA/mA sensor input (slot 1-3):

    • 2 sensor inputs for connecting, e.g. chlorine sensors, such as CBR or pH transducer pHV1

    Module V2 mV/mV temperature sensor input (slot 2-3):

    • 2 sensor inputs for connecting pH and ORP sensors and temperature sensors Pt100/
      Pt1000, e.g. of type PHER, RHER, PHEI, RHEIC, Pt100SE

    Module H1 mA/mA output (slot 1-3):

    • 2 electrically isolated analogue outputs 0/4-20 mA for the output of measured values or control variables

    Module D1 serial sensor monitoring module (slot 1-3):

    • Module 2 digital sensor inputs for connecting CTFS or CRS corrosion sensors

    Module V1 mV/temperature + mA module (slot 2-3):

    • 1 sensor input for pH or ORP sensor and temperature sensor Pt100/Pt1000
    • 1 sensor input for connecting, e.g. chlorine sensors, such as CBR or pH transducer pHV1

    Module CM Modbus RTU + 2 mA outputs (slot 3):

    • 1 Modbus RTU slave, for connecting to a PLC or gateway
    • 1 Modbus RTU master, for connecting a Pyxis fluorometer sensor
    • 2 electrically isolated analogue outputs 0/4-20 mA for the output of measured values or control variables

    Module CA Modbus RTU + 2 mA outputs + 2 mA inputs (slot 3):

    • 1 Modbus RTU slave, for connecting to a PLC or gateway
    • 1 Modbus RTU master, for connecting a Pyxis fluorometer sensor
    • 2 electrically isolated analogue outputs 0/4-20 mA for the output of measured values or control variables
    • 2 sensor inputs for connecting, e.g. chlorine sensors, such as CBR or pH transducer pHV1

    Downloads for Controller SlimFLEX 5a

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    Overview

    Controller SlimFLEX 5a, the entry level class for cooling water treatment, VDI 2047 Sheet 2 and BLMSchV 42-compliant, the innovative and flexible controller.

    The SlimFLEX5a records all the important measuring parameters for cooling water treatment and controls functions necessary for smooth operation:

    • Time-dependent biocide metering (boost metering). Checks can be undertaken by measuring the ORP voltage in the cooling water.
    • Measurement of electrolytic conductivity – controls bleeding.
    • pH measurement with integrated PID controller Controls processes automatically to ensure that the specified values (e.g. pH: acid or alkaline) are maintained even in the event of interfering influences. more in the glossary.

    Your benefits

    • A web interface for unit configuration and remote maintenance standard, Wi-Fi is optionally available
    • Forced bleeding: performs bleeding before biocide metering
    • Bleed lock: blocks bleeding after biocide metering has taken place
    • Operating status displayed by 6 status LEDs

    Application

    Technical Data

    Downloads

    Contact us

    »Please send us your request! We will contact you shortly.«

    +49 6221 842 0  Send request   

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