DIQ/S 282 - Controller for the IQ SENSOR NET

Digital system to monitor wastewater treatment plants, with up to 2 sensors
Controller for small and mid-sized wastewater treatment plants including USB-interface and internal data logger– up to 2 sensors, all parameters, available anytime:

The new controller DIQ/S 282 is available with different output signals. 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.

All versions include an USB-interface and an internal data logger by default. Thereby, your valuable data and system configurations can be stored quickly and easily. Stay up-to-date with our free of charge software updates and improve your controller for upcoming measurement tasks. Via the connection to the internet you can access your IQ SENSOR NET anytime and anywhere. Monitoring and support from remote saves time, money and nerves. Via the RS 485- and Ethernet- interfaces, the fieldbuses PROFIBUS, Modbus RTU, Ethernet/IP, Modbus TCP and PROFINET are available. The DIQ/S 282 is compatible with almost all currently available components of the IQ SENSOR NET.

Systems Controllers comparison – 181, 282, 284 and 2020
 System 181System 282System 284System 2020
 Max. Number of connectable sensors1248
 Max. Number of parallel measured parameters1*20**20**20**
 Output Signals

2 Analogue outputs,
3 Relays

Digital: None

Analogue outputs
(0/4-20mA), Relays

– RS 485
– Profibus DP
– Modbus RTU
– EtherNet/IP
– Modbus TCP

(digital and fieldbus parallel to analogue possible)

 Knowledge of special automation technology
Basically noneBascially none,
In PROFIBUS/Modbus systems yes
 Additional Options 
 Additional displaysNoNoNoYes
 Redundant controllerNoNoNoYes
 Modem-capable Interface
 (Fixed line Telephone)
Alarms and measured values
– MIQ/TC 2020 3G: via SMS and web browser
– MIQ/MC3 family: vie e-mail and web  
 Radio ConnectionNoYesYesYes
  • 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
  • Max. number of sensors: 2
  • IQ Sensor Net connections: DIQ/S 282-CR3(-E) (/24V) 1; all others 2
  • Outputs: 3 x (0) 4 … 20 mA, 3 x Relays, Ethernet interface for remote access, Ethernet fieldbusses, PROFIBUS or Modbus RTU (options see scopes of delivery)
  • Display: Graphic TFT Display; Resolution: 320 x 240 pixel; backlit
  • Control Functions/Function Keys: 5 operating keys: measurement (M), calibration (C), set/system settings (S), 3 master keys for functions: 2 keys for: confirmation/switching menu O.K. (OK), escape (ESC), Arrow keys for rapid selection of software functions and input of alpha-numeric values (up), (down)
  • Electric 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 3 modules as a stack mounted unit possible
  • Cable Feeds: 4 screw cable glands M 16 x 1.5 (expansible to M 20 if required)
  • Terminal Connections: Screw terminal strips; Terminal area for solid conductors: 0.2 … 4.0 mm2, Terminal area for flexible conductors: 0.2 … 2.5 mm2; accessible by opening cover
  • IQ Sensor Net Terminal Connections: Terminal connections for the IQ Sensor Net for connecting sensors
  • Ambient Conditions: Operating temperature: -4 °F … 131 °F (-20 °C … +55 °C); Storage temperature: -13 °F … 149 °F (-25 °C … +65 °C)
  • Housing Material: PC – 20 % GF (polycarbonate with 20 % fiberglass)
  • Protection Rating: IP 67 / corresponding to NEMA 4X (not for direct conduit connections). Conduits need to be connected with flexible adapters (CC-Box), respectively with adapters CC-PM..
  • Dimensions (W x H x D): 144 x 144 x 125 mm (5.67 x 5.67 x 4.92 in.)
  • Weight: Approx. 1,2 kg (2.6 pounds)
  • Certifications: CE
  • Electromagnetic Compatibility: EN 61326-1, Class A; FCC Class A
  • Integrated Overvoltage Protection: According to EN 61326-1 enhanced overvoltage protection for the entire system
  • Connection Medium Cable: IQ Sensor Net cable SNCIQ or SNCIQ/UG (underground cable with additional PVC coating): 2-wire with shield; 2 x 0.75 mm2; filler cord for easy connection of shield: 0.75 mm2; pressure resistant to 10 bar
  • Connection Characteristics: Power supply and data transmission on these wires; resistant to polarity reversal with respect to switched shield and inner conductor (no damage); comprehensive EMC shield control; Cable topology within the IQ Sensor Net system as required, e.g. in the form of a line, tree, star; total cable length max. 250 m (273 yds)
  • Warranty: 3 years for defects of quality