Weinmann MEDUMAT Basic Servicing And Repair Instructions page 19

Defect
Pressure limit (P ) incorrect
max
Alarms (visual and acoustic)
faulty
No alarm (visual + acoustic)
No acoustic alarm
No stenosis alarm
Alarm < 2,7 bar despite
existence of pressure
Alarm
Leak at pressure inlet
Leaks in tubes in device
Cause of defect
Incorrect setting selected on device
Pressure gauge not reading "0"
Patient valve not in working order
Patient valve or test bag incorrectly
connected
MV not correct
Tube connections in device faulty
Pressure sensor on circuit board
faulty
Potentiometer for frequency faulty
Pressure measurement connection
blocked
Two-way switch 45 mbar/
9
20 mbar faulty (for
MEDUMAT Basic / Basic p Basic p)
LEDs do not light up
Incorrect indication
(Stenosis/Disconnection)
Circuit board faulty
Alarm acknowledgement pressed
Alarm sensor faulty
Valve unit membrane leaking
Pressure sensor faulty
Tube connections in device faulty
Battery failing
Elbow connector in device loose or
faulty
Elimination
Make correct setting (Chapter 6.5 of
Operating Instructions)
Adjust (chap. 4.3, page 16) or
replace pressure gauge (chap.
6.13, page 31)
Check diaphragms and O-ring, if
necessary replace (Chapter 6.8 of
Operating Instructions)
Check tube connections and bag
See defect "MV not correct"
Check tubes and replace if
necessary (chap. 6.14, page 32)
Replace circuit board (chap. 6.12,
page 29)
Replace pneumatic block (chap.
6.14, page 32)
or replace pneumatic block with
angled outlet (chap. 6.15,
page 34)
Replace (chap. 6.10, page 27)
Replace switch (chap. 6.17,
page 38)
Replace top of housing (chap. 6.18,
page 39)
Check settings, check tube
connection to patient valve
(Chapter 6.8 of Operating
Instructions)
Replace circuit board (chap. 6.12,
page 29)
Wait for 30 – 120 s
Replace alarm sensor (chap. 6.10,
page 27)
Check that valve membrane is
properly seated
Replace circuit board (chap. 6.12,
page 29)
Check tubes and replace if
necessary (chap. 6.14, page 32)
Replace both batteries (chap. 6.6,
page 23)
Check (chap. 6.19, page 45)
Check tubes and replace if
necessary (chap. 6.14, page 32)
Troubleshooting
19