Nipro SURDIAL, Руководство по обслуживанию, Страница: 286 / 334

10.16-6
Adjustment of dilution ratio of bicarbonate B concentrate
Adjust the dilution ratio when bicarbonate dialysis mode is selected.
Set dialysate preparation components to water and A and B concentrates in maintenance mode 5
screen and operate machine in preparation or preparation end process. Measure concentration of
prepared dialysate specimen after the conductivity is stabilized. If required, adjust the dilution ratio.
(1) Turn on [DIALYSIS] SW to shift to dialysis wait process.
(2) Press [F 5] SW to display maintenance mode 5 screen.
(3) Press [F 3] or [F 4] SW to blink "8.MODE".
(4) Press [F 1] or [F 2] SW to set "W+A+B" for selecting water and A and B concentrates as
dialysate preparation components.
(5) Connect the concentrates to respective concentrate connectors.
(6) Press [PREP.] SW to shift to preparation process for starting dialysate preparation.
(7) Wait until conductivity (mS/cm) is stabilized under monitoring "9.COND. W+A+B".
(8) After the stabilization, take prepared dialysate specimen from sampling port.
(9) Measure the specimen concentration (mmol/L) using separately available concentration meter.
It is possible to derive the concentration by converting conductivity measured using any
conductivity meter to the concentration by referring to conversion Table.
(10) Check that [Measured concentration (mmol/L)] [Theoretical concentration of diluted A
concentrate ("3.THEORETICAL W+A")] is equal to ["6.THEORETICAL W+B"]. If not so,
change dilution ratios of "4.VCa W+B RATIO" and "5.VCb W+B RATIO" to adjust them.
Calculate each of the changed dilution ratios roughly by application of the below formula:
New dilution ratio
Theoretical concentration of diluted B concentrate × Current dilution ratio
Measured concentration Theoretical concentration of diluted A concentrate
New dilution ratio: dilution ratio after adjustment
Input of
1
AA.AA
into "4.VCa W+B RATIO" and "5.VCb W+B RATIO"
Current dilution ratio: dilution ratio before adjustment
Indication of
1
BB.BB in "4.VCa W+B RATIO" and "5.VCb W+B RATIO"
Measured concentration Concentration measured using meter (mmol/L)
Theoretical concentration of diluted A concentrate: (mmol/L)
Indicated in "3.THEORETICAL W+A"
Theoretical concentration of diluted B concentrate: (mmol/L)
Indicated in "3.THEORETICAL W+B"
(11) After the adjustment, wait until indicated conductivity is stabilized.
(12) Take dialysate specimen again from sampling port to measure its concentration using
concentration meter. Repeat the adjustment until [Measured concentration (mmol/L)
Theoretical concentration of diluted A concentrate ("3.THEORETICAL W+A")] becomes equal
to [Theoretical concentration of "6.THEORETICAL W+B"].