Based on years of experience in manufacturing and servicing of chlorination equipment, AQUA INTERMA INŽENJERING company has developed the automatic chlorine dosing system AS-2004/15. All modern principles of computerized control and automation are applied in this device.
Integrated differential vacuum regulator compensates oscillations of the vacuum and therefore allows more precise dosing. The basic parts are electronic components made by highly regarded world manufacturers, combined with the management software developed in our company. All principles of water chlorination control are integrated into one universal program, which can be controlled via command panel in Serbian, English, Romanian language, or any other language on request. AS-2004/15 system is designed for automatic, continuous regulation of chlorine dosing process in water disinfection, as well as for continuous measurement of residual chlorine in water.
Components of AS-2004/15 System
- Controller for automatic chlorine dosing AU-2004/15
- The differential vacuum regulator
- Vacuum meter
- Electromotive dosing valve
- Wall bracket with protective cover
Characteristics:
- Microprocessor device that incorporates functions of residual chlorine analyzer and automatic chlorine dosing
- Dosing adjustment according to flow and/or residual chlorine in water, in combination or individually
- Sodium hypochlorite dosing with dosing pumps: pulse, 4-20ma or PWM
- Command via control panel in Serbian, English, Romanian language, or any other language on request
- Touch screen display high resolution 4.3″
- Connection for chlorine analyzer measuring cell (measuring cell can be ordered optionally) 4-20 ma
- Connection for flow meter, 4-20 mA or pulse
- Optional device can have one of the following communication ports:
- Serial port(RS 232 or RS 485)
- Ethernet port
Communication protocol is according to the selected interface MODBUS RTU or MODBUS TCP.
*Manufacturer reserves the rights to change and improve software and other parameters of automation.
Technical data:
Power supply: | 220 V AC; 50 Hz |
Measurement accuracy: | better than 0,3% at 25oC |
2 Analog input signals: | 4 do 20 mA, 250Ω, passive or active power supply 18 – 24VDC(optional galvanic isolated) |
10 Digital inputs: | potential-free contact or 24 VDC |
6 Digital outputs: | 4 x Relay 2A and 2 x Solid State |
2 Analog outputs: (1 optional) |
4-20 ma galvanic isolated |
Communication port: (optional) | RS 232/485, MODBUS RTU or MODBUS TCP |
Operating temperature: | 0 – 50oC |
measuring range of connected sensors: | |
Residual chlorine analyzer: | 0 – 10mg/l (parameter) |
Flow meter: | 1-999 l/s (parameter) |
Dosing valve for chlorine: | 100 gr/h – 10 Kg/h |
For the correct operation of electromotive dosing valve, a constant pressure drop across the valve is required. Differential vacuum regulator is designed to maintain a constant pressure differential across the valve and to compensate vacuum oscillations which may occur due to changes of operational water flow and changes in the chlorine dosing quantity.
Automation of chlorination process significantly reduces the impact of "human error" which is present in case of manual regulation. Well-tuned automatic controller keeps a constant level of residual chlorine in the water always at required level, without human intervention.

Remotely access via smartphone and tablet
You can remotely access controller AU-2004/15 via smartphone and tablet.Use it to:
- Remotely access via Internet or wireless LAN connection
- Control and monitor automation and machines processes remotely
- View operational conditions, alarms, data, and trends in real time
- Configure communication channels for multiple controllers
Supported features include:
- Organize controllers in favorites and groups
- Shareable Configurations – send your list of controllers and settings via email for backup, or to share on another device
- Security via Password – create a password the first time you use the app to prevent unauthorized entry
- Pinch to zoom
- Display size changes according to the controller screen resolution
Mobile device minimum OS version: Android 4.0+, API 14+ iOS 7+