25/08/2004 ©
Söring
Service-Manual Arco- and RF-units
1
not valid for A-3000/ -2000
2
not valid for Arco-2000
-68-
3
not valid for MBC600
4
not valid for Arco-1000
Adjustment resonance frequency monopolar:
- Start equipment in service mode , select service function 11, connect RF-meter to
monopolar handpiece with 100
Ω
load, press handpiece switch "Cut" and adjust by
means of P3 on cut module to maximum output power. Power approx. 85W.
Adjustment resonance frequency bipolar:
- connect bipolar connecting cable to RF-meter, select 100
Ω
load, start the
equipment (foot switch cut). Adjust by means of P4 to maximum output power.
Power approx. 85W.
Adjustment offset of power measuring amplifier
- Select service function 12, sub-function 1 (Power supply delivers no voltage,
selected power "zero", adjust potentiometer P2 so that LED D47 (cut module) just
starts to light up. Press "Cut"-switch with this adjustment.
Check of arc regulation
- Select service function 12 (Power supply delivers no power, select appropriate
parameters), connect signal generator (sine signal source resistance 50
Ω
) to
handpiece and PE-electrode. Set frequency to 1.05 MHz. Increase output voltage
until LED D31 (cut module ) just starts to light up. The required output voltage must
be in the range 2 to 5V
ss
. Press "Cut"-switch with this adjustment.
12.5.4 Adjustment of RF-Out B2 (SMD) [from SW 3.10]
Necessary equipment
- RF-Handpiece with two fingerswitches
- Patient electrode
Adjustment of Offset-Voltage
- start unit in Service-Mode
- choose Service function 15, sub function 3
- Monopolar Handpiece and Patient electrode have already to be plugged in
- Unit has to be switched on for at least 10 minutes already!
- start unit periodically with handpiece button CUT (yellow) or Coag. (blue) (Only
this way the offset-value will be displayed in the Coag.-field correctly).
- adjust with poentiometer P1 on HFO-B2 (piggyback) a value of 25-30
- Leave Service-Mode and start unit again