Fresenius Medical Care 2008K Operator's Manual page 44

Chapter 2—Daily Preparation for Treatment
Individual tests are identified as shown on the "Test & Options" screen. A failure of any of the
tests is indicated by a red X in the error box to the right of the test name.
The Alarm test consists of nine individual tests that verify the integrity of the settable alarm limits
of the system. Both the alarm and pressure tests should be conducted by the operator prior to first
treatment of the day.
The Pressure Holding Test (PHT) consists of two separate tests that are conducted sequentially.
The purpose of the PHT test is to ensure the pressure integrity of the hydraulic system under
actual pressures generated during the normal operation of the system. PHT must be performed
before each high-flux treatment.
If all tests are completed successfully, a message TEST COMPLETE appears in the Status box.
The operator must press RESET once to clear the message. Patient-specific treatment parameters
(other than UF related) can be entered at any time during the test.
An audible alarm sounds only if a test has failed. In a failure situation, after all of the tests have
been completed, the message BOTH TESTS FAILED , ALARM TEST FAILED, or PRESSURE
TEST FAILED is displayed in the Status box depending on the nature of the failure. A red X
appears in the failure box designating the test(s) failed. The right side of the screen provides
additional information regarding the failure. A description of the test messages can be found in
Chapter 6, "Troubleshooting". Pressing the RESET key once mutes an alarm, pressing it a
second time resets the right side of the screen.
Figure 17 – Test Failure Screen
44 2008K Operator's Manual rev. K