YSI IQ S ENSOR N ET TriOxmatic 702 IQ - Manual (Page 43)

TriOxmatic
®
702 IQ Technical data
7 - 1 ba76048e01 01/2012
7 Technical data
7.1 Measurement characteristics
Measuring principle Membrane-covered amperometric sensor with potentiostatically
operated 3-electrode system;
Integrated microprocessor electronics, shielded 2-wire connection for
power and data transmission.
Electrolyte ELY/A
Measuring ranges and
resolutions
Temperature
compensation
IMT (integrated membrane temperature compensation)
Measurement in water According to solubility function DIN 408 / Part 22
Measurement in salt-
contaminated
wastewater
Salinity input from 2.0 ... 70.0;
corresponds to 3.4 mS/cm ... 86.2 mS/cm at T
REF
20 °C
(salinity measurement in the range 2 ... 42 according to IOT =
International Oceanographic Tables)
Polarization time
Temperature
measurement
Calibration procedure Air calibration
Measuring
mode Measuring range Resolution
D. O.
concentration 0 ... 2000 µg/l
0.00 ... 10.00 mg/l 1 µg/l
0.01 mg/l
D. O. saturation 0.0 ... 110.0 % 0.1 %
In the case of recommissioning or
change of electrolyte At least 60 minutes
for precision measurements At least 120 minutes and
recalibrate on the following day
In the case of short polarization
interruptions (depending on the
duration of the interruption) 30 to 120 minutes
Temperature sensor integrated NTC
Measuring range - 5 °C ... + 60 °C (23 ... 140 °F)
Accuracy ± 0.5 K
Resolution 0.1 K