Hach-Lange GANIMEDE N - Manual (Page 5)

5
Section 1 Technical data
Subject to change.
Ganimede P analysis unit
Type
Ganimede P for the automatic serial analysis of orthophosphate
and total phosphate in the analytical laboratory, consisting of
analysis unit, sample changer and control unit
Photometric method
By means of ammonium molybdate in accordance with DIN EN
1189 of December 1996
Total P digestion Rapid digestion at 150 °C and 6 bar
Sample pH pH 2 – 11
Measurement range 0.01 – 3.8 mg/L PO
4
-P
Measurement accuracy ±0.03 mg/L at 1 mg/L
Measurement wavelength 880 nm
Calibration 2-point calibration and 10-point calibration
Processing time per sample 4 minutes for single determination
Ganimede N analysis unit
Type
Ganimede N for the automatic serial analysis of inorganically and
organically bound nitrogen in the analytical laboratory, consisting
of analysis unit, sample changer and open-loop control unit
Photometric method
By means of UV self-absorption at 210 nm and 228 nm in
accordance with DIN EN ISO 11 905-1
Digestion Alkaline digestion at 150 °C and 8 bar
Measurement range
Low measurement range 0.5 – 30 mg/L TN
B
High measurement range 30 – 150 mg/L TN
B
Reproducibility of the measurement results < 2 % at 15 mg/L
Carryover < 1 % within a measurement range
Measurement wavelengths 210 nm and 228 nm
Calibration
2-point calibration and multiple-point calibration
(2–11 measurement points)
Processing time per sample 7 minutes for single determination
Sample changer
Sample tray
Sample tray for 36 × 25 mL or
Sample tray for 53 × 15 mL
Tray diameter 240 mm
Environmental conditions
Temperature range 15 – 35 °C
Relative humidity < 75 %, non-condensing
Air pressure 75 – 106 kPa
Equipment properties
Particle mobility
Analysis unit
According to DIN 38402; the prerequisites of EN 1484 TOC of
> 100 µm are significantly exceeded
Sample changer
According to DIN 38402; the prerequisites of EN 1484 TOC of
> 100 µm are significantly exceeded with 1 mm (sample needle)