Universal monitor DIQ/S 181 - WTW

Universal monitor DIQ/S 181 - WTW

  • SKU: 472100
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  • Description
    Digital single parameter measuring location for O2, pH/ORP, conductivity or turbidity
    The system 181 – the digital and cost-efficient single parameter measuring point with proven IQ SENSOR NET technology and matching fixed cable sensors:
    •Low-cost alternative to analog measuring points
    •Matching digital IQ fixed cable sensors for pH/ORP, conductivity, O2 and turbidity
    •Stable, robust and proven measuring technology
    With its system 181, WTW offers a digital and cost-effective alternative to analog measuring points. For the parameters pH/ORP, conductivity, oxygen or turbidity, we offer our new IQ fixed cable sensors.

    You will receive a cost-effective measuring point with proven WTW technology. In addition to the power supply via a wide range power supply (100-240VAC) or via 24 V, you will also have 2 power outputs and 3 relays at your disposal.
  • Specifications


    Graphic display; resolution: 128 x 64 pixel;
    visible area: 72 x 40 mm (2.83 x 1.57 in.),
    black/white, backlit

    Control Functions/
    Function Keys

    5 operating keys: 3 master keys for functions:
    measurement (M), calibration (C), set/system settings (S),
    2 keys for: confirmation/switching menu O.K. (OK), escape (ESC)
    2 knobs for rapid selection of software functions and input of alpha-numeric values (up), (down)

    Cable Feeds

    4 screw cable glands M 16 x 1.5

    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

    Electric Supply

    100 … 240 VAC (50/60 Hz), 24 V AC/DC

    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 66 / 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 95 mm (5.67 x 5.67 x 3.74 in.)


    Approx. 2.2 pounds (1 kg)


    ETL, cETL (conforms with relevant UL and Canadian standards), CE

    Electromagnetic Compatibility

    EN 61326-1,
    Emission: Class B,
    FCC Class A

    Integrated Overvoltage Protection

    According to EN 61326-1 enhanced overvoltage protection for the entire system

    Connection Characteristics

    Energy- and Data transfer via two wire technique, integrated EMC shield control


    3 years for defects of quality


DIQ/S 181 (/24V) (English)

IQ Sensor Net System 181
System operating manual

DIQ/S 181 (/24V) (German)

IQ Sensor Net System 181,


Flyer, German, 999102D
"IQ SENSOR NET - das System"


Flyer, English, 999102US
"IQ SENSOR NET - the system"


Flyer, Polish, 999102PL