HCEN12630 Revision 07.2015
Program version 1.xx
AK 98™ Dialysis Machine - Functional check 265
● High conductivity test, refer to Section 12.7.6.3 “High conductivity test” on
Figure 12-15. Conductivity test.
1. Measured conductivity
2. Measured conductivity
3. Conductivity low test
4. Conductivity high test
12.7.6.2 Low conductivity test
The Conductivity Low test is started when fluid reaches the HPG pressure sensor.
The term stable means that the value is not fluctuating more than 0.3 mS/cm during 10
seconds:
Conditions Evaluations & Actions Error codes
No concentrate in the fluid
path
The Control system’s
measured conductivity
(conductivity B) is sent to the
Protective system when the B
value is stable. If the
conductivity value is not
stable, the test is repeated
until error code is generated.
0511 088 085
No concentrate in the fluid
path
The Protective system
measures the conductivity
(conductivity P). If it is
unstable, repeat the test until
error code is generated.
0511 088 029
No concentrate in the fluid
path
The Protective system
measures the conductivity
(conductivity P). If it is higher
than 5 mS/cm, repeat the test
until error code is generated.
0511 088 028
No concentrate in the fluid
path
The conductivity values are
compared. If the difference is
higher than the limit (see
following table), repeat the test
until error code is generated.
0511 088 027
Table 12-28. Low conductivity test
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