Liquisys M CLM223/253

Endress+Hauser

5

The user-configurable pre-alarm indicates undesired operating states in good time. To comply with

USP or EP requirements, it is necessary to use a sensor that measures with highest precision, e.g.

CLS16.

Input

Measured values

Conductivity

Resistivity

Temperature

Measuring ranges

Conductivity (conductive)

0 to 600 mS/cm (uncompensated)

Conductivity (inductive)

0 to 2000 mS/cm (uncompensated)

Resistance

0 to 200 MΩcm

Concentration

0 to 9999 (%, ppm, mg/l, TDS)

Temperature

-35 to +250 °C (can also be displayed in °F)

Cell constant

Configurable cell constant

k = 0.0025 to 99.99 cm-1

Measuring frequency

Conductivity, resistance (conductive)

170 Hz to 2 kHz

Conductivity (inductive)

2 kHz

Connectable temperature

sensors

Pt 100, Pt 1000, NTC 30K

Binary inputs

Voltage

10 to 50 V

Current consumption

Max. 10 mA

Current input

4 to 20 mA, galvanically isolated

Load: 260 Ω for 20 mA (voltage drop 5.2 V)

Output

Output signal

0/4 to 20 mA, galvanically isolated, active

HART

Signal encoding

Frequency Shift Keying (FSK) + 0.5 mA via current output signal

Data transmission rate

1200 baud

Galvanic isolation

Yes

PROFIBUS PA

Signal encoding

Manchester Bus Powered (MBP)

Data transmission rate

31.25 kBit/s, voltage mode

Galvanic isolation

Yes (IO modules)