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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.

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

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

Technical Data

Measuring range

Conductivity:
With digital sensor CTFS 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: -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 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 0/4-20 mA analogue outputs for the output of measured values or control variables

Module D1 serial sensor module for monitoring (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

Controller AEGIS II Kataloğu

Deha Smart

Meclis Mah. Atatürk Cad. B2 No:109 G İç Kapı No:13 Sancaktepe / İstanbul

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