P18/37
E-IM54f
pressing a fingerswitch cut or coag button or by pressing
the appropriate footswitch, yellow for cut, blue for coag.
Check that the relevant power activated indicators
illuminate, yellow (9) or blue (22) for cut or coag respectively
and that the audible running tone can be heard.
Notes:
♦
The volume of the running tone and the selector
button ‘bleep’ can be adjusted with the volume control
(33) on the back of the unit. This should be adjusted
using a screwdriver of suitable size.
♦
Coagulation output is obtained only by pressing the
fingerswitch blue coag button or the blue footswitch.
♦
Cut output is obtained only by pressing the fingerswitch
yellow cut button or the yellow footswitch.
5.16 If the bipolar output is to be used ensure that the
bipolar electrode is safe and activate the output by pressing
the white footswitch connected (either electric or
pneumatic). Check that the blue power activated indicator
(7) illuminates and that the audible running tone can be
heard.
5.17 Check that the following alarms are functioning
correctly by the test methods that follow:
PAM - To test the PAM alarm attach the divided plate
electrode to the divided plate cable with the divided
plate cable plugged into the unit. The PAM alarm
should operate with the plate electrode not attached
to the patient.
PCM - To test the PCM alarm remove the non-divided plate
electrode from the non-divided plate cable with the
non-divided plate cable plugged into the unit. The
PCM alarm should operate.
PEM - To test the PEM alarm with the plate electrode
attached to the unit allow the plate electrode to contact
the equipotentiality point (34) at the rear of the unit
using a bare metal part of the plate and not a part
covered by adhesive. With cut and coag power levels
both adjusted to zero (for safety) the PEM alarm
should operate when a USER 1 footswitch or
fingerswitch (whichever is connected to the unit) or a
USER 2 fingerswitch is pressed .
Note: This test is not possible with a capacitive plate
electrode.
-To test the multiple activation alarm press both a cut
and coag footswitch or fingerswitch control, the alarm
should operate.
The other alarms (PVM, EPM and !) cannot easily be
checked by the user without special test equipment or by
using procedures that could lead to accidental burns. The
function of the EPM alarm should be checked regularly, in
accordance with the Service Manual (see section 1.8).
OPERATING INSTRUCTIONS
Note: For numbers in brackets refer to Illustration 11 which
folds out at the end of this manual.
♦
Unit settings (e.g. range selection and mode selection)
are stored in the unit's memory during power-off
periods and will not need reselecting when power is
reapplied. Power settings will also be maintained
during power ‘off’ so long as the control knobs are not
moved.
♦
The audible running tones operate at different
frequencies for each of the three output groups (bipolar,
monopolar cut and monopolar coag) as detailed in the
‘Technical data’ section.
If a monopolar user activates power at the same time
(but after) a bipolar user the tone will continue at the
bipolar frequency until the bipolar user stops activation
when the monopolar user’s frequency will start
(assuming the monopolar user is still activating the
unit). If the monopolar user only activates the unit for
a short period during a long activation by the bipolar
user then the monopolar user’s frequency will not be
heard. The same principles apply if a monopolar user
is activating power and a bipolar user starts to activate
power at the same time.
Monopolar standby mode
5.18 If the unit is in monopolar standby mode only bipolar
operation is available, monopolar is disabled and the
monopolar digital displays (8 and 23) will not be seen. The
unit is switched in and out of standby mode be pressing
the monopolar standby button (32). The switch ‘toggles’
standby mode ‘on’ or ‘off’ each time the button is pressed,
monopolar standby mode is selected when the digital
displays for monopolar (8 and 23) are not illuminated.
Monopolar mode
USER 1 and/or USER 2 selection
5.19 The TD830 can be used by two monopolar operators
USER 1 and USER 2 independently of each other but not
simultaneously. Each user can have their own active output
under their own control operated by footswitch or
fingerswitch for USER 1 and fingerswitch only for USER 2
(see sections 5.3 to 5.7)
5.20 USER 1 and USER 2 can be using either cut or
coag but the mode set within cut or coag must be the same
and the power level set must similarly be the same (unless
changed between each USER’s application of power).
5.21 Because USER 1 and USER 2 cannot both be
delivering power at the same time, power is available on a
‘first-come-first-served’ basis. (i.e. if USER 1 is using power
and USER 2 presses a fingerswitch to demand power, none
will be available and visa versa). Also note that power will