Fresenius Medical Care 2008T Troubleshoot Manual

2008T Troubleshooting Guide
P/N 490292 Rev. A
Page 53
F- 3.8.1 TROUBLESHOOTING INTERMITTENT FLOW ERRORS
The following step-by-step procedures may locate an extremely intermittent Flow Error:
1) Figure right, check the (blue) CFS transducer #10
AND Dialysate Pressure #9 transducers for signs of a
small external leak. If leakage is located replace the
transducer.
2) To ensure the Deaeration Motor is not intermittently
stopping, glance at Loading Pressure (Rinse port
gauge) from time to time to ENSURE it ALWAYS
PEAKS to between 23 and 27 psi!
3) If the DiaSafe
®
filter is LESS THAN 60 days old
continue to step #4. If more than 60 days old:
A) Replace the filter; B) Return to Dialysis Program; C) Set [Dialysate Flow] to 800 ml/min; D) Allow
eight (8) minutes; D) Call debug screen 0; E) Watching Flow Error for up to ten (10) minutes, if it
EVER = 1 continue to step # 4.
4) Open the shunt door till instructed otherwise!
5)
Call debug screen 0. Watching for up to ten (10) minutes, if Flow Error EVER = 1 continue to step #6.
6) Call debug screen 1. If VERR EVER = 1 or more indicates an intermittent Valve Error. In this event
ONLY see procedure number F- 2.0.0 (
page 38). If VERR = 0 continue to step #7.
7) Call debug screen 0. A) ENSURE Chamber #69 says “No Air”; B) If drain flow and
incoming water pressure is good almost every time the Balancing Chamber valve
‘dots’ cycle, Valve #41’s ‘dot’ turns blue for about one (1) second.
8) Call debug screen 4. ENSURE PDIA (left column) is between 2.0 and 8.0 AND is IS NOT changing
more than 0.3 per minute which may indicate a bad DiaSafe
®
filter OR a leaking balancing chamber
valve.
9) Performing parts a through e below, may locate an intermittent bad CFS transducer:
a) From the Home screen, set [Dialysate Flow] to “OFF” and press ‘Enter’.
b) Call debug screen 0. Figure right, ENSURE FLWP = 255 (Flow is off).
c) ACFS should instantaneously (within 0.5 seconds) go to between 4.0
and 5.9. If it EVER increases slower than this OR remains less than
4.0 OR goes to more than 5.9 CFS transducer #10* may be
intermittent bad.
* To LOCATE the CFS refer to Figure 6 (page 22)
d) From the Home screen, set [Dialysate Flow] to 800 ml/min and press ‘Enter’.
e) Repeat parts a through d at least eight (8) times. If ACFS goes to between 4.0 and 5.9
instantaneously, EVERY SINGLE TIME, continue to step #10 (next page).

Fresenius Medical Care 2008T Specifications

General

Brand	Fresenius Medical Care
Model	2008T
Category	Medical Equipment
Language	English