6 • Working with the electrosurgical unit
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80113-101_V25087
2023-11
For a dual surface electrode:
Connect connecting cable to the
unit and test
The following requirements must be met for the test:
• For a neutral electrode without a permanent connecting cable: The cable must not
be connected to the neutral electrode.
• For a neutral electrode with a permanent connecting cable: The neutral electrode
must not be applied to the patient.
1. Plug the connecting cable into the neutral electrode socket (bottom unit socket).
2. Check the neutral electrode indicator light next to the neutral electrode socket.
Fig. 6-2
Note: The signal assignment described below (red = no short circuit; green = short cir-
cuit) is technically determined and correct.
If the neutral electrode indicator lamp is red, there is no short circuit. The cable may
be used.
If the neutral electrode indicator lamp is green, there is a short circuit. The cable must
not be used.
For a single surface neutral
electrode: Connect connecting
cable to the unit
A short circuit test is not required/not available for a single surface neutral electrode.
Plug the connecting cable into the neutral electrode socket (bottom unit socket).
Attach neutral electrode to patient
Short circuit in the connecting cable or in the clip of a dual sur-
face neutral electrode
If a short circuit occurs in the connecting cable or in the clamp of a
dual surface neutral electrode, the unit can no longer monitor the
contact with the patient's skin. You will not receive a warning if the
electrode becomes detached from the skin.
Risk of burns to the patient!
To rule out the possibility of a short circuit in the connecting ca-
ble and in the clamp before using the unit, test the connecting
cable as described below.
Positioning the neutral electrode above the heart
Risk of cardiac arrhythmia for the patient due to function-related
currents from neutral electrode monitoring!
Do not position the neutral electrode over the heart or in the re-
gion of the heart.
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