Welch Allyn Electrosurgical Unit - User Manual - Manual (Page 20)

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.