Endress+Hauser Liquiline M CM42 - Performance Characteristics; Ph; ORP; Conductivity

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Performance characteristics
pH / ORP Reference temperature
25 °C (77 °F)
Measured value resolution
Maximum measured error
7)
Repeatability
Conductivity Reference temperature
25 °C (77 °F)
adjustable from –5 to 100 °C (23 to 212 °F)
8)
Measured value resolution
pH (glass electrodes and ISFET sensors) 0.01 pH
ORP: 1 mV
Temperature: 0.1 °C (0.1 °F)
SCS glass electrodes:
Glass:
Reference:
100 kΩ
100 Ω
Leak current, ISFET sensors: 100 nA
7) acc. to DIN IEC 746 part 1, under nominal operating conditions
pH (glass electrodes and ISFET sensors) 0.02 pH
ORP: 1 mV
Temperature:
NTC30k:
Pt100 / Pt1000:
0.5 K
0.25 K
SCS glass electrodes:
Glass:
Reference:
200 MΩ
200 Ω
Leak current, ISFET sensors: 100 nA
pH < 0.01
8) with software package "Advanced" or "Advanced Plus"
Conductivity < 0.1% from the measured value (4 digits)
minimum, at:
cell constant k ≤ 0.15 cm
-1
cell constant k ≤ 1.5 cm
-1
cell constant k > 1.5 cm
-1
0.001 μS/cm
0.01 μS/cm
0.1 μS/cm
Temperature (Pt100 / Pt1000) 0.01 °C (0.01 °F)
Resistivity
minimum
< 0.1% from the measured value (4 digits)
1 kΩ
.
cm