Hitachi 902 - Functional Specifications of Model 902 ISE

5 - 1
5. ISE
5.1 Functional Specifications of Model 902 ISE
Item Specification
Measurable samples Serum, urine, blood
plasma
Measuring temperature
35 ± 2°C
Throughput Continuous measurement 100 samples/hr max.
Measurement system Dilution to 1/50
Sample volume: 10 µL
Dilution volume: 490 µL
Data accuracy Data reproducibility Simultaneous reproducibility:
Serum CV ≤ 1%
(N = 30) Urine CV ≤ 2%
Data accuracy Normal standard serum:
Na, Cl ±1.5 mmol/L
K ±0.1 mmol/L
Measuring concentration
range
Serum Na : 80 to 180 mmol/L
K : 1.5 to 10 mmol/L
Cl : 60 to 120 mmol/L
Urine Na, Cl : 10 to 250 mmol/L
K : 1 to 100 mmol/L
Maintenance Rinsing operation Kind : Daily
Method : Automatic, pipetting from sample
cup
Reagent priming Internal standard, reference electrode
solution
Potential measurement Measurement of electromotive force of
Na/K/Cl in stand-by status
Sampling Upon simultaneous
request for photometry
and ISE
Priority given to ISE for calibrator, routine
sample and control sample
Printout Upon independent request
for ISE
Data printed out immediately after
calculation