Rf Leakage - ConMed Sabre 2400 Operators & Service Manual

R

4.5.4 RF Leakage

Equipment:
0-250 mA RF Ammeter
200 ohm 10 W Noninductive Resistor
Patient Plate Adapter Plug
Bovie #12 Adapter Plug
2 - Test leads, 1 m max. length
3 - Test leads, 10 cm max. length
Wooden table approximately 1 m from floor.
Procedure:
1. Ensure that the unit is fully assembled and all
fasteners are tight.
2. Place the meter and resistors on the table so
that they are at least 0.5m away from the unit
under test and any other conductive surface.
MEASURED OUTPUT
TERMINAL
RETURN ELECTRODE
RETURN ELECTRODE
RETURN ELECTRODE
RETURN ELECTRODE
FOOT ACTIVE
BIPOLAR TOP
BIPOLAR BOTTOM
4-4
ACTIVATION
COMMAND
FOOT COAG
LEFT HAND CONTROL COAG
RIGHT HAND CONTROL COAG
BOTH HAND CONTROL COAG
FOOT COAG
FOOT BIPOLAR
FOOT BIPOLAR
Table 4.2 RF Leakage to Ground Tests
3. Set the unit for full power Standard Coag and
Bipolar Coag. Connect the 200 ohm nonreactive
resistor in series with the 250 mA RF ammeter,
and a common earth ground (the footswitch con-
nector shell will suffice). One at a time, connect
this series combination to each RF output termi-
nal indicated in Table 4.2, and activate the unit
using the corresponding command. Confirm that
no meter readings exceed the specified maximum.
Hand control coag activations are accomplished
by connecting a jumper between the lower black
jack and the red jack of the desired hand switch-
able accessory jack.
4. This measurement applies only to Sabre 2400
P/N's 60-5600-003 and 60-5600-015. Measure
A1 C67 and C68 in circuit resistance to confirm
a value greater than 20M ohm resistance. Temp-
orarily disconnect A1-J11 and measure RF leak-
age from the Foot Active with Foot Coag activa-
tion and confirm that RF leakage increases with
the connector disconnected. Reconnect A1-J11
when finished.
>WARNING<
HAND CONTROL ACTIVATIONS
SHOULD BE KEYED USING 3'' OR LESS
WELL INSULATED JUMPER(S). USE OF
AN INSULATING ROD TO INSERT THE
JUMPER IS ADVISED TO PREVENT RF
BURNS.
MAXIMUM
LEAKAGE (mA)
100
100
100
100
100
20
20