Specifications

5-18 Troubleshooting Plug-in Modules
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Troubleshooting Plug-
in Modules
❏ If a "LQVWHDGRIDQXPHULF and one or more INOP messages are displayed for the
SpO2/Pleth module, perform the following actions:
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6WHS Perform a Self-Test (See “Performing the SpO2/Pleth Module Self-Test” on page 5-
43). If the SpO2/Pleth test numerics read exactly the listed values, proceed to the
next step, if not, replace the module.
6WHS Refer to the following table. Correct the possible cause identified by the INOP
message and verify that the INOP disappears. If the problem still exists, replace the
module.
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SpO
2
/PLETH NO
TRANSDUCER
No transducer is connected to the
module
Connect transducer to module.
SpO
2
/PLETH
EQUIP MALF
Malfunction in the transducer or
module.
Replace transducer. If INOP persists,
replace module
SpO
2
/PLETH
UNPLUGGED
SpO
2
/PLETH module is unplugged
from the rack.
Perform Step 5 on page 5-17
SpO
2
ERRATIC Erratic SpO
2
measurements, often
due to a faulty transducer, or invalid
SpO
2
measurements; often due to
the transducer being incorrectly
positioned.
Reposition transducer. If the INOP per-
sists, replace transducer.
SpO
2
/PLETH
NOISY SIGNAL
Patient movement or electrical
interference are causing irregular
pulse patterns.
Make sure that patient does not move
strongly. If INOP persists, move cable
away from power cords.
SpO
2
/PLETH
INTERF
Level of ambient light and/or cable
induced electrical interference is so
high, that the SpO
2
transducer can-
not measure pulse rate.
Cover transducer against ambient light
and move cable away from power cords.
SpO
2
/PLETH
NON-PULSATILE
Pulse is too weak or not detectable. Move transducer to another application
site.
PLETH
REDUCE SIZE
Transducer displaced or strong
vasodilation after automatic wave
fixing.
Press Optimize Size softkey in PLETH
Task Window to restore the PLETH
wave.
SpO
2
TRANSD
MALF or
PLETH TRANSD
MALF
SpO
2
transducer is defective due to
inadequate diode output.
Replace the transducer.