WiT WIT-601A - Chapter 8 Security Characteristic and Alarm; Trouble Shooting

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Chapter 8 Security characteristic and alarm
Trouble shooting
Alarm message
level
Infusion
stop
Possible failure
Check and repair
Door open
High
Yes
Pump door is open

Close the pump door and lock.
Bubble
High
Yes
Infusion set is not properly
installed
Properly install the infusion set and make sure it is
mounted to the slot of bubble detector
Air inside infusion tube
Flick the infusion tube or press Bolus key to purge the
bubbles
Inlet blocked
Check the infusion inlet
Bubble sensor damaged
Replace the sensor
Alarm is not cleared
Press the Clear key to cancel the alarm manually.
Infusion
Completed
High
KVO
Infusion Completed
 Replace new liquid, re-set the volume for
re-infusion
 Infusion completed and shutdown.
Pre-alarm
low
NO
Pre-complete infusion
 Whether need add VTBI

Cancel pre-alarm if not needed
Empty
low
KVO
Liquid dripping is not
detected

Check whether the infusion bottle/bag is empty;

Check whether Murphy's dropper is misty or too
tilted, liquid flows down along the wall rather
than dripping
Up Occlusion
High
Yes
Infusion inlet is not open
 Open the inlet
Abnormal
up-pressure
High
Yes
Up pressure sensor is
interfered
 Check for strong electromagnetic interference
around, re-start infusion pump after removal of
the source of interference
Up Pressure
Sensor Failure
High
Yes
Connection of up pressure
sensor looses

Contact the manufacturer for maintenance
Down Occlusion
High
Yes
Tube is folded
 Check whether the infusion tube is folded, and
unfold it.
Clamp is not open

Open the clamp
Needle is blocked
 Check whether the infusion tube/needle is
blocked
Infusion filter is blocked
 Check whether for foreign objects are in filter, if
any, replace infusion set
Infusion set is too hard or
too thick
 Replace infusion set or reduce blocking
sensitivity
Pressure
Pre-Alarm
low
No
Tube is blocked slightly,
the pressure going up
 Check whether the tube is blocked

Set pressure level to a higher level