Universal measuring transmitter IQ SENSOR NET System 284


Design according to the minimum requirements for measuring instruments used at 
waste water treatment plants defined by DWA in bulletin M256. 

Universal measuring transmitter to connect up to 4 IQ sensors of your choice;
with integrated wide range power supply unit, controller and control unit;
with Ethernet filedbuses and relays.


Equipped with the following features:

- with USB interface
- with integrated data logger
- Control unit for the quick selection of software functions
- With illuminated graphic display
- With integrated controller function
- Input voltage 100 - 240 VAC 50/60 Hz
- Line power consumption approx. 20 VA
- RJ45 interface for data transfer via Ethernet fieldbuses (Ethernet/IP, MODBUS TCP, PROFINET)
- 3 freely programmable relay outputs (250 VAC/2 A or 24 VDC/2 A) that can be assigned arbitrarily; potential free
- with 2 IQ Sensor Net connections
- Connection to the internet via RJ45 for remote control (with integrated wobbrowser)
- Error behavior according to Namur NE43
- High EMC interference immunity 
- Integrated lightning protection

Measured parameters:
pH/ORP, D.O., conductivity, temperature, turbidity, total dissolved solids, ammonium, nitrate, nitrite,
potassium, chlorine, phosphate, carbon (COD, TOC, DOC, BOD, SAC) UVT, sludge level

System communication:
Digital transmission technique

Enclosure material:
PC - 20 % GF (polycarbonate with 20 % glass fibre)

Dimensions:
144 x 144 x 125 mm (W x H x D)

Temperature range:
Operating range: -20 C ... 55 C
Storing range: -25 C ... 65 C

Instrument protection:
IP 67 type of protection

Protective class / overvoltage category:
II / II

Test certificates:
CE

Manufacturer:
WTW

Type:
DIQ/S 284-EF
or equivalent