Söring Arco-3000 - Check of Handpieces and Foot Switches; Check of RF-Generators and Safety-Devices; Power Measurement

25/08/2004 © Söring Service-Manual Arco- and RF-units
1
not valid for A-3000/ -2000
2
not valid for Arco-2000
-86-
3
not valid for MBC600
4
not valid for Arco-1000
14.3.2 Check of handpieces and foot switches
- Perfect condition of plug and cable
- Mechanical faults, especially cracks in handpiece housing
- Function test of all handpieces and foot switches
14.3.3 Check of RF-generators and safety-devices
Function-test of RF-generators, RF-relays and leakage current detector.
The following equipment is needed:
- Measuring device for RF-surgery equipment for measurement of output power
and RF-leakage current, e.g. BIO-TEK RF-302
- Handpieces
- Connecting cable patient electrode
- Cables and clamps
Preparation
Connect RF-measuring device to the RF-unit in accordance with instruction manual.
Connect active electrode via handpiece. Establish connections to patient electrode,
equipment-frame and earth according to specifications of measuring- device
manufacturer. Checks of leakage current must be performed according to safety class
"CF".
14.3.4. Power measurement
Values for power output see table in chapter 8. Observe load resistors.
Generally the function is correct if the RF-power does not deviate more than ± 20% from
the nominal value.
14.3.5 Check of power monitoring
The equipment switches off if due to faults the delivered power exceeds the selected
value by more than 25%. For this purpose a measuring device is built in which checks the
actual output power. In service mode 14 this power is indicated and can be compared
with the measured power (RF-meter) by the following procedure:
-Switch equipment to service mode 14
-Measure power for Cut step 2-5 and Spray/Argon step 2-5 (load 200
> )and
compare it to indication. The maximum difference is
 10%.
-Leave service mode after finishing test
14.3.6 Measurement of leakage current
Set RF-power meter to position active electrode and PE-leakage current check. Leakage
current measurement is done in "CF"-mode. Within the load range 100 Ohm to 500 Ohm
the leakage current for all operational modes must be less than 150 mA.