AMI Codes-II

Colorimetric process analyzer (DPD-method) for measurement and dosing control of disinfectants such as free chlorine, hypochlorus acid, chlorine dioxide, ozone, bromine, iodine and monochloramine.

  • For the continuous online determination of disinfectants based on the DPD colorimetric method (EN ISO 7393-2; APHA 4500 Cl-G).

  • Also applicable for water containing additives like corrosion inhibitors, cyanuric acid and antiscalants.

  • Measurement values: Free chlorine, chlorine dioxide, bromine and iodine, monochloramine or ozone.

  • Complete system including measurement and control electronics, photometer, flow indicator, reaction chamber, reagent dosing system and reagent containers.

  • Integrated pH measurement with temperature compensation (available as option).

  • All usual dosing devices for disinfectants and pH control can be connected either through relays or analog output signals. Two independent controllers can operate simultaneously.

 

Options:

  • pH option containing pH sensor, temperature sensor, cables and electronics board.

  • Communication interface:
    - 3rd current signal output 0/4-20mA
    - Interface RS485 (Profibus DP or Modbus)
    - USB interface

  • Chemical cleaning module.

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Specifications

Disinfectant measurement

Measuring range [ppm]

Accuracy

Ozone

0.05 - 1.00

±0.01 ppm

HOCL, free chlorine, monochloramine

0.00 - 1.00

±0.01 ppm

1.00 - 3.00

±0.06 ppm

3.00 - 5.00

±0.2 ppm

Chlorine dioxide, iodine, bromine

0.00 - 2.00

±0.02 ppm

2.00 - 6.00

±0.12 ppm

Response time

90% of change of excessive Cl in 60 seconds after sample entered flow cell.

Cycle time free chlorine

1 ... 12 min.

pH measuring range

2 ... 12

Temperature measuring range

-30 ... 100 °C

Transmitter Specifications

Power Supply

100-240 VAC (±10%), 50/60Hz or 10-36 VDC

Power consumption

max. 35 VA

Sample conditions

Water consumption

min. 10 l/h

Water inlet pressure

0.15 ... 2 bar

Sample temperature

5 ... 50 °C

Panel

Dimension

400 x 850 x 200 mm

Material

PVC

Weight

9.0 kg

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