Metrohm 2.850.9010, Руководство пользователя

Страница: 25 / 28

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6 Technical specifications
2.850.9010 IC Conductivity Detector
￭￭￭￭￭￭￭￭
17
6 Technical specifications
6.1 Conductivity measuring system
Type
￭
Microprocessor-controlled Digital Signal Processing (DSP technol-
ogy)
￭
Intelligent detector with 6 reference chromatograms
Measuring range 0 - 15,000 µS/cm without range switching
Noise < 0.1 nS at 1 µS/cm
Linearity devia-
tions
￭
< 0.1% for conductivity values higher than 16 µS/cm
￭
< 1% for conductivity values lower than 16 µS/cm
Drift < 0.2 nS/cm per hour
Measuring rate 10 measurements per second for optimum results without filtering
Resolution 0.0047 nS/cm
Baseline Noise < 0.2 nS/cm typical for sequential suppression
Conductivity
detector
Cell volume 0.8 µL
Cell constant
￭
Individual calibration data saved in the detector
￭
Adjustable in the range: 13.0 - 21.0 /cm
Electrodes Ring-shaped electrodes made from stainless steel
Materials in
contact with
eluent Chemically inert PCTFE
Maximum oper-
ating pressure 5.0 MPa (50 bar)
Cell tempera-
ture 20 - 50 °C in increments of 5 °C
Temperature
stability < 0.001 °C
Temperature
compensation 0 - 5%/K adjustable, default 2.3%/K
Heating time < 30 minutes (40 °C)