Encision EM3 AEM, Руководство пользователя, Страница: 38 / 48

EM3 AEM User’s Guide 7-1
7
Technical Specifications
All specifications are subject to change without notice.
Operating Modes - AEM Monitoring
POST Mode
The Power On Self Test function (POST) activates each time you turn on the AEM Monitor or
when the Reset button is pressed. During POST, each LED indicator illuminates and two
beeps sound.
Monopolar Operating Mode
The AEM Monitor detects improper setup conditions and detects operative faults by providing
a monitored pathway for the current which is flowing from the shield to the patented return
electrode. Fault conditions are indicated on the front panel and the Monitor interrupts the
flow of energy from the electrosurgical generator (ESU) to the AEM instrument. Operative
faults also generate an audible alarm.
Bipolar Operating Mode
The AEM Monitor measures the RF current flowing between the tines of a bipolar accessory.
A number of segments on the display illuminate corresponding to the magnitude of current
flowing between the tines of the accessory. The indicated current range is 0.1 A to 1.1 A.
The AEM Monitor clicks at a rate proportional to the indicated current. The click volume is
adjustable and can be muted if desired.
Functional Characteristics
Monopolar Setup Fault Detection
If the return electrode is disconnected or the wrong type of return electrode is connected, an
amber indicator illuminates to identify the deficiency.
If an AEM cord or AEM handpiece is connected to the monitor but the instrument is not
connected or not connected properly, an amber indicator illuminates to identify the setup
fault.
Shield Cable and Return Electrode Switch Threshold
50 ohms ± 40%
Monopolar Operative Fault Detection
If there is excessive shield current or arcing between the shield and the active electrode
causing an operative fault, the amber instrument insulation failure indicator illuminates to
identify an insulation fault, an audible alarm is generated, and the AEM Monitor interrupts the
flow of energy from the electrosurgical generator to the AEM instrument.
Radio-Frequency Current Sensing
Current-sensing and spark detection are provided. Minimum electrosurgical generator output
for reliable insulation fault detection: 20 Watts.
Bipolar Current Measurement
The number of segments illuminated in the bar-graph display corresponds to the magnitude
of the bipolar current. In addition to the visual display, the AEM Monitor generates clicks at a
rate proportional to the measured current and the click volume is adjustable.
Accuracy: 20% of full scale
Range: 0.1 to 1.1 Amperes
Maximum current without damage: 3.0 Amperes
Click Rate: 2 Hz @ 0.1 Ampere, 40 Hz @ 1.1 Ampere