Cl2

Applications

  • Drinking water
  • Municipal wastewater
  • Industrial wastewater discharge limit monitoring or process optimization
  • Food and beverage
  • Power and semiconductors
  • Reverse osmosis (RO) process
Chlorine

Description

The 3S Colorimeter is a compact analytical instrumentation for online analysis and process monitoring. The colorimeter is based on a color-developing chemical reaction carried out inside the analyzer glass cell. The sample, comining from an external reservoir or process stream is autonomously grabbed by the instrument and mixed with the appropriate reagents to make the reaction happen. The analyzer uses an LED light source and a photodiode to photometrically measure the developed color intensity (absorbance). The absorbance is proportional to the concentration of the target chemical species (analite).

Features:

  • Low reagents consumption and analytical reliability thanks to our custom designed miniature peristaltic pumps
  • Dual compartment design to guarantee a complete separation between the electronics and the hydraulic section
  • Color touchscreen to show the last measured value clearly, and to set all the options and settings via an user friendly interface
  • Datalogger function with data history in graphical form and USB download
  • Automatic calibration, validation and cleaning to reduce down time and operator intervention, their frequency can be freely set by the user
  • Fully integrable in industrial automation via the analog outputs (2 x 4-20 mA channels), digital output (2 relays + ModbusRTU) and digital input (voltage free contact)

Chlorine is measured using the DPD colorimetric method (US EPA 4500-CI G and ISO 7393-2 accepted method). The determination ranges of the analyzer vary from trace μg/L to 200 mg/L Cl2 using the (optional) internal dilution module.

Method

This parameter has more than one analytical method. Choose one below.

Chlorine-containing samples are reacted with N,N-diethyl-p-phenylenediamine sulfate in the presence of a suitable buffer. The indicator and buffer are added and react with chlorine to produce a pink color. This compound is measured at 525 nanometers.

Features

Range
(Ø 26 mm)
2000 ppb
Range
(Ø 16 mm)
5000 ppb
Range
(with dilution)
200 ppm
Wavelength 525 nm
Number of reagents 2
Min. analysis time 3 minutes

Reagents

  • CL2-CL-R12KIT-1 - Chlorine reagents (predosed powders and liquids) 1 L
  • CL2-CL-R12SZ-1 - Chlorine reagents 1 L

Chlorine-containing samples are reacted with N, N-diethyl-p-phenylenediamine sulfate in the presence of a suitable buffer. The indicator and buffer are added and react with chlorine to produce a pink color. This compound is measured at 525 nanometers. In total chlorine and monochloramine measurements, potassium iodide is added.

Features

Range
(Ø 16 mm)
5 ppm
Wavelength 525 nm
Number of reagents 3
Min. analysis time 3 minutes

Technical Specifications

Model CL
Analysis Mode Batch, near continuous operation.
Sample Pressure-free vessel
Temperature: 5 to 50 °C (41 - 122 °F)
Flow Rate: 80 to 500 mL/min
Connection: 6 mm (¼-in.)
Drain Pressure-free drain
Connection: 12 mm (½-in.)
Streams 1, 2 with integrated switching valve
3, 4 with external sequencer
Frame Epoxy-coated stainless steel AISI 304
Dimensions (H x W x D) 604 x 380 x 242 mm (23.6 x 14.8 x 9.4 in)
Weight 20 kg (44 lbs)
Power Supply Input Voltage:115 - 240 VAC 50/60 Hz or 24 VDC (optional)
Power consumption: max. 80 W
Output signals 2 x 4-20 mA analog outputs
Modbus RTU via RS485
Alarms 2 SPDT programmable voltage-free relays
Digital Input Remote start / stop
Temperature 5 - 45 °C (41 - 113 °F)
Relative Humidity 10 to 90 % (indoor use, outdoor installation only possible with protective cabinet or shelter not included)
International Protection IP54
Chlorine - Technical Drawing

Documentation

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