PACON 2501 on-line residual/total chlorine analyser (colourimetric)

The PACON 2501 on-line residual chlorine analyser is an accurate, cost-effective and low-maintenance instrument for continuous on-line monitoring of residual chlorine. It detects the concentration of residual chlorine using the DPD colourimetric method and automatically adds reagents for colourimetric measurement, making it suitable for residual chlorine measurement during chlorination and disinfection and for monitoring residual chlorine concentrations in drinking water networks. Selecting total chlorine reagent, total chlorine concentration can be monitored online.

Measurement parameter

 residual chlorine

 total chlorine

Typical application

 piped water

 Drinking water network

 reverse osmosis

 chilled water

 swimming pools

 shampoo (liquid)

 Sterilisation process

Product Features

 DPD colourimetric method for more accurate and stable measurements

- National standard methods, consistent with laboratory methods

 Auto-diagnostics and auto-calibration

- Automatic continuous self-diagnostic measurements

- Built-in calibration curve

Low reagent consumption and easy replacement

- 2500/5000 measurements per set of reagents

- Simple reagent change, just pour the DPD powder into the indicator solution to dissolve and use.

 Automatic and manual measurement modes

- One-touch (down key) quick start for one measurement

- Automatic measurement period selectable: 60-3600s

 Analysis cycle time approx. 2.5 minutes

Measurement time (including cleaning time) is 2.5min.

 IP65 protection rating

Indoor wall mounting

4-20mA output

4-20mA output as standard with a maximum load of 500Ω.

 RS485 Modbus communication

Standard Modbus RTU communication protocol with 9600 baud rate

 Password protection against unauthorised operation

Password: 0022, Chinese/English menu

Technical parameters

Measuring principle: DPD colourimetric method

Measuring range: 0.00-5.00 mg/l (ppm) residual chlorine

Resolution: 0.01 mg/l (ppm)

Accuracy: 1 per cent f.s.

Cycle time: adjustable: 60 - 3600s (system default 300s)

Display: 4.3" LCD touch screen display (measured value, measurement mode and relay status)

Language: Chinese/English

Power supply: 90-260VAC,50/60Hz

Analogue output: 4-20mA output,Max.500Ω

Digital output: RS485 Modbus

Alarm: 2 sets of independently set Hi/Lo alarm points with hysteresis setting, 5A/250VAC

Operating conditions: Operating temperature: 0-50°C; Humidity: 10-95 per cent, non-condensing

Recommendation:  Flow rate: 1/min; Pressure: 1 bar

Protection class: IP65

Installation: wall mounting

Size: 300x400x180mm