Nipro SURDIAL, Руководство по обслуживанию, Страница: 278 / 334

10.15-2
VR1(A)
CN601
WJ1(GND)
CN602
TP3
SBY0205
TP2
TP1 TP4
VR1(B)
10.15.2. SBY0205 board
Adjust bubble sensor by setting water filled blood line to bubble detector followed by turning volume
of bubble sensor board based on the following procedures as step 1 and step 2.
Step1: Adjustment of reference voltage
(1) Required devices
Tester
Precision screwdriver
(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 TP2 of bubble sensor board to (+) probe of the tester
and WJ1 of the board to (-) probe of it.
(4) Check that the adjusted voltage is 2.0V by turning VR1(B).
Attached blood line condition is not concerned with this adjustment. (You may not use blood
line for this adjustment.)
(5) Shift to next adjustment as Step2 Adjust output level.
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CAUTION
There are two VR1 on the SBY0205 board.
Use VR1(B) for this adjustment.
Fig. 10.15-2 Bubble sensor board (SBY0205)
Adjust voltage Adjust point Test point
Reference voltage 2.0V VR1(B)
TP2 WJ1