Metrohm 896 Professional Detector – Conductivity & Amperometry - Manual (Page 52)

7.1 Reference conditions
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2.896.0030 896 Professional Detector – Conductivity & Amperometry
7 Technical specifications
7.1 Reference conditions
The technical data listed in this Chapter refers to the following reference
conditions:
Ambient tempera-
ture +25 °C (± 3 °C)
Instrument status > 40 minutes in operation (equilibrated)
7.2 Conductivity detector
Type ￭ Microprocessor-controlled Digital Signal Processing (DSP technol-
ogy)
￭ Intelligent detector with 6 reference chromatograms
Measuring range 0…15000 µS/cm without range switching
Noise < 0.1 nS at 1 µS/cm
Deviations from
the linearity ￭ < 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 steps of 5 °C