Roche 91 Series - Common Operating Parameter

Roche Diagnostics April 2007
A-14 Service manual · Version 2.0
2 Specifications 91xx pH/Electrolyte Analyzers
Specifications
Sample size 25 μL
Analysis time 70 seconds
Sample rate o 40 per hour with printout
o 50 per hour without printout
pH Sensor pH sensitive flow-through glass capillary electrode in transparent acrylic plastic
Reference System Open liquid junction, flow-through electrode
Calibration o Fully automatic
o 1 point with each sample
o 2 point every 3 hours
Warm-up time 10 minutes
9120/9130/9140/9180/9181
Sample types Whole blood, serum, plasma, urine, dialysate (acetate or bicarbonate)
Sample device Syringe, sample cup, capillary, Roche MICROSAMPLER
Sample size 95 μL
Analysis time 50 seconds
Sample rate o 45 per hour with printout
o 60 per hour without printout
Sodium (Na
+
) sensor Ion-selective, flow-through, glass capillary electrode
Potassium (K
+
) sensor Ion-selective, flow-through, liquide membrane electrode
Chloride (Cl
–
) sensor Ion-selective, flow-through, liquide membrane electrode
Calcium (Ca
2+
) sensor Ion-selective, flow-through, liquide membrane electrode
Lithium (Li
+
) sensor Ion-selective, flow-through, liquide membrane electrode
Reference system Open liquid junction, flow-through electrode
Calibration o Fully automatic
o 1 point with each sample
o 2 point every 3 hours (9180/9181 every 4 hours)
Warm-up time 10 minutes
Common operating parameter
Standby mode Suspends calibrations
Tempe ratu re Room temperature, 15 - 32°C, 60 - 90 °F