Nipro SURDIAL, Руководство по обслуживанию

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10.15-3
VR1(A)
CN601
WJ1(GND)
CN602
TP3
SBY0205
TP2 TP1 TP4 VR1(B)
Step2: Adjustment of output level
(1) Required devices
Tester
Precision screwdriver
Blood line
Micro-syringe
(2) Remove left cover from upper part of machine to expose bubble sensor board as SBY0205.
(3) Set tester to DC range and connect test TP3 of bubble sensor board to (+) probe of the tester
and WJ1 of the board to (-) probe of it.
(4) Set standard tube filled with about 37 water to bubble detector and adjust voltage indication
of the tester to 3.5±0.2V by turning VR1(A).
(5) Remove the tube from the detector and check that the voltage indication is reduced to 0.5V.
(6) Set blood line to blood pump.
(7) Operate the pump at a flow rate of 200mL/min to re-circulate 37 water through the line.
(8) Turn on BUBBLE DETECTOR SW and introduce 0.03ml of bubble into the line using
micro-syringe under care for the bubble is not divided. Check that bubble alarm is actuated
when the bubble passes through the detector sensor.
(9) Return the removed cover to the original position.
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CAUTION
There are two VR1 on the SBY0205 board.
Use VR1(A) for this adjustment.
Fig.10.15-3 Bubble sensor board (SBY0205)
Adjust voltage Adjust point Test point
With Blood line 3.5 ± 0.2V VR1(A)
Without blood line Less than 0.5V
TP3 WJ1