ConMed 7550 - Return Monitor (A.R.M. - Aspen Return Monitor)

7-7
cally means the double press did not occur
within a specified time of 400mS. Try the
function again.)
• To advance the power setting, press the
Cut button - to reduce the power setting,
press the Coag button.
• With the power <20W, the power changes
in 1W increments.
• With the power ≥20W, the power changes
in 5W increments.
• A brief tone occurs each time the power
changes.
• To exit the Remote Mode, double press
the Coag button or wait 5 seconds and
the system will automatically exit the
Remote Mode.
4. Rapidly “double press” or “double click”
the ABC™ (light blue) button on the
handcontrol. The ABC™ display will flash
when the Remote Power mode is active and
the tone will change. (If the displays do not
flash, it typically means the double press did
not occur within a specified time of 400mS.
Try the function again.)
• To advance the power setting, press the
Cut button - to reduce the power setting,
press the Coag button.
• With the power <20W, the power changes
in 1W increments.
• With the power ≥20W, the power changes
in 5W increments.
• A brief tone occurs each time the power
changes.
• To exit the Remote Mode, double press
the ABC™ button or wait 5 seconds and
the system will automatically exit the
Remote Mode.
7.7.7 Return Monitor (A.R.M. - Aspen
Return Monitor)
The return monitor allows a Single Foil Dispersive
Electrode or Dual Foil Dispersive Electrode to be
connected to the System 7550.
1. Select Single Pad
• The A.R.M. tests for resistance at the pad
site of 10±2 ohms.
• To test the A.R.M. parameters for a Single
Pad, connect a decade resistance box
(DRB) or discrete resistors across the two
conductors of a patient plate cord.
• With resistance < 8 ohms, Return Fault
indicator is off. With resistance > 12
ohms, Return Fault indicator is flashing.
• Verify that when the Return Fault indica-
tor is flashing, an audible alarm occurs if
any mode but bipolar is activated.
2. Select Dual Pad
• The A.R.M. tests for resistance at the pad
site of greater than 10±2 ohms and less
than 150±5 ohms.
• To test A.R.M. in Dual Pad, it is recom
-
mended a decade resistance box (DRB)
be connected across the two conductors
of a patient plate cord. If a DRB is not
available, discrete resistors can be used.
• Ensure Dual Pad is selected.
• Resistance < 5 ohms: Bargraph off -
Return Fault indicator is flashing.
• Resistance = 12 ohms: Two (2) bargraph
segments flashing; Monitor Set indicator
flashing; Return Fault indicator flashing.
• Press Monitor Set: Two (2) bargraph
segments on; Monitor Set indicator on;
Return Fault indicator off.
• Resistance = 20 ohms: Three (3)
bargraph segments flashing; Monitor Set
indicator flashing; Return Fault indicator
flashing.
• Press Monitor Set: Three (3) bargraph
segments on; Monitor Set indicator on;
Return Fault indicator off.
• Resistance = 130 ohms: Eight (8)
bargraph segments flashing; Monitor Set
indicator flashing; Return Fault indicator
flashing.
• Press Monitor Set: Eight (8) bargraph
segments on; Monitor Set indicator on;
Return Fault indicator off.
• Resistance = 160 ohms: Ten (10)
bargraph segments flashing; Monitor Set
indicator flashing; Return Fault indicator
flashing.
• Press Monitor Set: It will remain in the
Alarm Mode. Each time the Monitor Set
is pressed, an alarm tone will be gener-
ated.