Pht- 3.0.0 "Neg Flow On" Appeared; Pht- 3.1.0 Pressure Test(S) Failed; Fail Neg Stabilize - Fresenius Medical Care 2008K2 Troubleshooting Manual

PHT- 3.0.0 "NEG FLOW ON" APPEARED

Allow the tests to finish! Do BOTH Pressure Tests (Positive and Negative) pass?
Yes BOTH pass!
No "Pressure Test Failed"! At the bottom of the screen, select the [Test & Options] tab. TWO (2)
possible scenarios:
1) IF "Fail: Remove Air" is listed: NOTE it THEN see continue to procedure number
PHT- 3.1.0
2) ALL OTHER failure listings: See procedure number

PHT- 3.1.0 PRESSURE TEST(S) FAILED

a) Call debug screen 1 to locate ATMP and FILACT (Figure right). Below
you will watch these while ALSO watching the screen banners!
b) Reset ALL alarms!
c) Select the [Test & Options] tab THEN the [Pressure Test] button.
d) Press 'CONFIRM' THEN call debug screen 1.
e) During the sixteen (16) second "Remove Air" period FILACT = 1.
f) When "Neg Flow On" first appears a thirty (30) second STABILIZATION period begins. ATMP should
settle between -250 and -440!
NOTE: If "Remove Air" reappears the tests are REPEATING AND FILACT will = 1 again. In this
event, allow "Neg Flow On" to reappear i.e. the repeat STABILIZATION period.
NOTE: If FILACT EVER = 1 during the repeat STABILIZATION period NOTE this!
NOTE: If ATMP does not remain between -250 and -440 "Fail Neg Stabilize" will be listed in the Test
& Options screen possibly indicating a large air leak.
g) If ATMP remains between -250 and -440 a thirty (30) second HOLD period begins. "Neg Flow On"
remains up AND ATMP should not change more than +/- 20!
NOTE: If ATMP increases to more than -440 NOTE this!
NOTE: If "Remove Air" reappears the tests are REPEATING AND FILACT will = 1 again! In this
event, allow "Neg Flow On" to reappear then thirty (30) seconds for the HOLD period to begin
again.
NOTE: If FILACT EVER = 1 during the repeat HOLD period NOTE this!
NOTE: If ATMP does not HOLD +/- 21 "Fail Neg Flow On" will be listed in the Test & Options screen
possibly indicating a small air leak.
Parts h through k next page
IMPORTANT!
Proceed to
(page 480).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
page 484
, procedure number
PHT- 3.1.0 (page 480).
PHT- 4.0.0.
Page 480