Technical data Liquisys M CLM223/253
104 Endress+Hauser
11.4 Performance characteristics
Reference temperature 25 °C (77 °F); adjustable for the compensation of the medium temperature
Resolution
Maximum
measured error
1)
Repeatability
1
Temperature
compensation
Temperature offset ±5 °C; for the adjustment of the temperature display
11.5 Environment
Ambient temperature -10 to +55 °C (+14 to +131 °F)
Storage temperature –25 to +65 °C (-13 to +149 °F)
Electromagnetic
compatibility
Interference emission and interference immunity as per EN 61326-1:2006, EN 61326-2-
3:2006
Ingress protection
Electrical safety according EN/IEC 61010-1:2001, Installation Category II, for use up to 2000 m above sea
level
CSA Apparatus with CSA General Purpose Approval are certified for indoor use.
Relative humidity 10 to 95%, non-condensing
Pollution degree The product is suitable for pollution degree 2.
Conductivity:
Temperature:
depending on the measuring range: 0.001 μS/cm
to 1.999 μS/cm and k 0.5 cm
-1
0.1 °C
1) acc. to IEC 746-1, for nominal operating conditions
Conductivity:
Display: max. 0.5 % of measured value ± 4 digits
Conductivity signal output: max. 0.75 % of current output range
Resistivity:
Display: max. 0.5 % of measured value ± 4 digits
Resistivity signal output: max. 0.75 % of current output range
Temperature:
Display: max. 1.0 % of measuring range
Temperature signal output: max. 1.25 % of current output range
Conductivity: max. 0.2 % of measured value ± 2 digits
Resistivity: max. 0.2 % of measured value ± 2 digits
Range: -35 to +250 °C (-31 to +482 °F)
Types of compensation: uncompensated, linear, NaCl, table;
conductive only: ultrapure water NaCl, ultrapure
water HCl
Panel mounted instrument: IP 54 (front), IP 30 (housing)
Field instrument: IP 65 / tightness acc. to NEMA 4X
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