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Controller AEGIS II

Controller AEGIS II continuously measures and controls the conductivity and biocide concentration to keep pipework and heat exchangers clean.

Product description

Treatment of cooling water in evaporation cooling systems - VDI 2047 and 42-compliant Federal Immission Control Ordinance (BImSchV)-compliant

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

  • Measures the electrolytic conductivity – controls bleeding
  • Biocide metering – time-dependent or as measurement and control, VDI 2047 and 42-compliant. Federal Immission Control Ordinance (BImSchV)-compliant (e.g. chlorine)
  • Corrosion measurement – determines whether enough corrosion inhibitor is being metered
  • pH measurement – measures and controls the pH value

Your benefits

  • Control of biocide metering over 1, 7 or 28 days, real-time clock
  • If desired, the biocide concentration can be measured and controlled online
  • Measurement of conductivity, temperature and flow control with the CTFS type digital sensor
  • Serial web interface for unit configuration and remote maintenance with e-mail alarms (the controller must be connected to the Internet for e-mail alarms). WiFi as an option
  • Forced bleeding: performs bleeding before biocide metering, based on time or measured values
  • Bleed lock: blocks bleeding after biocide metering has taken place

Field of application

  • Control of bleeding in evaporation cooling systems
  • Volume-proportional control or regulation of the metering of corrosion inhibitors, de-foamers and dispersants
  • Measurement and control of the inhibitor concentration through the use of a fluorescence sensor
  • Measurement and optionally control of the pH value and ORP voltage
  • Metering of biocides, based on time or measured values
    more more

    Technical Details

    • 8 digital inputs for contact water meter, flow detector and control signals
    • 10 status LEDs display the operating status
    • 9 flexible relay outputs: for setpoint-dependent flow volume-proportional or time-based control of actuators
    • Measured variables: conductivity, pH, ORP, chlorine, bromine, chlorine dioxide and more
    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 positions 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

    Accuracy0.3 % based on the full-scale reading
    Measurement inputpH/ORP (input resistance > 0.5 x 1012 Ω)
    Temperature compensationPt 100/Pt 1000 for pH
    Temperature correction range0 … 100 °C
    Control characteristicP/PID control
    Electrical connection90 – 253 V, 50/60 Hz, 25 VA, 24 V DC
    Field bus connectionModbus RTU, additional field buses via gateway
    Ambient temperature0 ... 50 °C (for use indoors or with a protective enclosure)
    Enclosure ratingWall-mounted: IP 67
    Tests and approvalsCE, MET (corresponding to UL as per IEC 61010)
    Housing materialPPE with flame-proof finish
    Dimensions H x W x D240 x 360 x 110 mm
    ClimatePermissible relative humidity: 95 %, non-condensing DIN IEC 60068 –2-30

    Description of modules

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

    • 2 sensor inputs for the connection of, for example, chlorine sensors, such as CBR or pH switch-over pHV1

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

    • 2 sensor inputs for the connection of 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 galvanically isolated analogue outputs 0/4-20 mA for the output of measured values of control variables

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

    • Module 2 digital sensor input for the connection of 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 the connection of, for example, chlorine sensors, such as CBR or pH switch-over pHV1

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

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

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

    • 1 Modbus RTU slave, for connection to a PLC Programmable Logic Controller or gateway
    • 1 Modbus RTU master, for the connection of a Pyxis fluorometer sensor
    • 2 galvanically isolated analogue outputs 0/4-20 mA for the output of measured values of control variables
    • 2 sensor inputs for the connection of, for example, chlorine sensors, such as CBR or pH switch-over pHV1

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    Overview

    Treatment of cooling water in evaporation cooling systems - VDI 2047 and 42-compliant Federal Immission Control Ordinance (BImSchV)-compliant

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

    • Measures the electrolytic conductivity – controls bleeding
    • Biocide metering – time-dependent or as measurement and control, VDI 2047 and 42-compliant. Federal Immission Control Ordinance (BImSchV)-compliant (e.g. chlorine)
    • Corrosion measurement – determines whether enough corrosion inhibitor is being metered
    • pH measurement – measures and controls the pH value

    Your benefits

    • Control of biocide metering over 1, 7 or 28 days, real-time clock
    • If desired, the biocide concentration can be measured and controlled online
    • Measurement of conductivity, temperature and flow control with the CTFS type digital sensor
    • Serial web interface for unit configuration and remote maintenance with e-mail alarms (the controller must be connected to the Internet for e-mail alarms). WiFi as an option
    • Forced bleeding: performs bleeding before biocide metering, based on time or measured values
    • Bleed lock: blocks bleeding after biocide metering has taken place

    Application

    Technical Data

    Downloads

    Contact us

    Prasanna Rao

    Managing Director, Heidelberg ProMinent Fluid Controls India Pvt. Ltd.

    +91 8023 5788 72   
    Send request    

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

    +91 8023 5788 72  Send request   

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