
IQ SENSOR NET Controller 281
Universal monitor DIQ/S 281-CR2. The new system 281 – the digital and cost-efficient single parameter measuring point with proven IQ Sensor Net technology and IQ sensors for the standard parameters.
DIQ/S 282/284 Controller for small and mid-sized wastewater treatment plants including USB-interface and internal data logger-up to 4 sensors, all parameters, available anytime
All parameters at a glance:
The new controller DIQ/S 282/284 is available as 2- (DIQ/S 282) or 4-channel-version (DIQ/S 284). Besides the reagent-free measurement of COD, all other parameters needed for a wastewater treatment plant can be measured. By the combination of multi-parameter sensors, up to 20 parameters can be measured and displayed simultaneously.
Up-to-date, safe and independent:
All versions include an USB-interface and an internal data logger by default. Thereby, your valuable data and system configurations can be stored quick and easy. Stay up-to-date with our software updates free of charge and improve your controller for upcoming measurement tasks.
Convenient and available at any time:
Via the connection to the internet, you can access your IQ Sensor Net anytime and anywhere. Monitoring and support from remote save time, money and nerves. Via the RS 485- and Ethernet- interfaces, the fieldbuses PROFIBUS, Modbus RTU, Ethernet/IP, Modbus TCP, and PROFINET are available.
Easy replacement:
The DIQ/S 282/284 is compatible with almost all currently available components of the IQ Sensor Net.
Features of DIQ/S 282/284 Controller
• All parameters available (O2, NH4, NO3, COD, PO4, sludge level, …)
• USB-interface and internal data logger by default
• Convenient and available anytime via Ethernet-interface
Applications of DIQ/S 282/284 Controller
• Municipal and Industrial Wastewater
• Water Treatment
• Surface Waters
• Sea water, Brackish water, Fishfarming
• Boiler Feed Water
• Demineralization
• Industrial Process Media
| Controller | DIQ/S 282-CR3 | DIQ/S 282-PR | DIQ/S 282-MOD | DIQ/S 282-CR3-E | DIQ/S 282-EF |
| Order No. | 472110 | 472111 | 472112 | 472113 | 472114 |
| Max. number of sensors | 2 | ||||
| Connectable sensors | 1 | 2 | 2 | 1 | 2 |
| Communication | 3 x (0) 4-20 mA 3 x Relais |
PROFIBUS 3 x Relais |
Modbus RTU 3 x Relais |
3 x (0) 4-20 mA 3 x Relais RJ45 for remote access |
Profinet Modbus TCP Ethernet IP 3 x Relais |
| Ambient Conditions | Operating temperature: -4 °F … 131 °F (-20 °C … +55 °C); Storage temperature: -13 °F … 149 °F (-25 °C … +65 °C) |
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| Max. total cable length | 250 m | ||||
| Power supply | 100 … 240 VAC (50/60 Hz), 24 V AC/DC | ||||
| MIQ Module coupling at rear | Combined mechanical and electrical connection, for rapid coupling to MIQ modules, up to 2 further modules possible as stack mounting unit | ||||

Universal monitor DIQ/S 281-CR2. The new system 281 – the digital and cost-efficient single parameter measuring point with proven IQ Sensor Net technology and IQ sensors for the standard parameters.

In contrast to the standard BOD5 method the BioMonitor measures the total BOD. Measurement range: 1-200.000 mg/l BOD, 0 100 % Toxicity, Respiration in mg O2/l x min

Optimal for the measurement of TOC and DOC in the inlet/effluent of municipal wastewater treatment plants.

Standard-compliant turbidity measurement with ultrasonic cleaning, according to US EPA 180.1 and DIN EN ISO 7027.