beautypg.com

Welch Allyn Electrosurgical Unit - User Manual User Manual

Page 20

background image

Electrosurgical Unit

• Instruction Manual

19

XII.

TROUBLESHOOTING

In the event of a failure during SELF TEST the display will show one of the error
codes listed below:

ALARM SIGNALS

PROBLEM

AUDIBLE TONE

DISPLAY

RAM Memory

1 kHz 100ms On 250ms OFF

“Er0”

(during self-test phase)

EPROM Memory

1 kHz 100ms ON 250ms OFF

“Er1”

(during self-test phase)

Signal Modulation

1 kHz 200ms ON 250ms OFF

“Er2”

(during self-test phase)

Signal Modulation

1 kHz 40ms ON 60ms OFF

“Er2”

(during activation phase)

Supply Voltage

1 kHz 100ms ON 250ms OFF

“Er3”

(during self-test phase)

Supply Voltage

1 kHz 40ms ON 60ms OFF

“Er3”

(during activation phase)

Power Output

1 kHz 100ms ON 250ms OFF

Er5

(during activation phase)

Foot Pedal Circuit

1 kHz 100ms ON 250ms OFF

Er6

(during self-test phase)

Microcontroller Power Supply

1 kHz 100ms ON 250ms OFF

Er7

Dispersive Electrode

1 kHz 80ms ON 125ms OFF

“nP”

& Red Light

A. If upon completion of Self Test the unit display reads Er0, Er1, Er2, Er3, Er5, Er6

or Er7, contact Welch Allyn Customer Service at 1-800-535-6663.

B. If upon completion of Self Test or if the unit stops functioning and the display

reads nP and the red warning light is on, check the dispersive patient plate to
insure that it is properly connected to the Electrosurgical Unit.