E-IM54f P5/37
TD830
ELECTROSURGICAL UNIT
2. 0 TECHNICAL DATA
GENERAL
The TD830 Electrosurgical Unit (or Surgical Diathermy
Unit) is classified as ‘HF surgical equipment’
1
1
- ‘HF surgical equipment’ is defined as, “Medical
electrical equipment including its associated accessories
intended for the performance of surgical operations, such as
the ‘cutting’
2
or ‘coagulation’
3
of biological tissue by means of
high frequency (h.f.) currents”.
2
- ‘Cutting’ is defined as, “Resection or dissection of body
tissue caused by the passage of high frequency current of high
current density at the active electrode(s)”.
3
- ‘Coagulation’ is defined as, “Sealing of small blood
vessels or of body tissue caused by the passage of high
frequency current at the active electrode(s)”.
Equipment - High power electrosurgical unit with
monopolar and bipolar outputs
Type - Portable
DIMENSIONS
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39.0 cm
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19.0 cm
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.5 cm
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 kg
ELECTRICAL DATA
(Note: Voltage factory set by transformer tapping, according
to model supplied.)
Power Supply . . . . . . . . . . . . . . . . . 230V a.c., 50-60Hz
or, 240V a.c., 50-60Hz
or, 220V a.c., 50-60Hz
or, 110V a.c., 50-60Hz
Current (max.) . . . . . . . . . 4.4A (230V) or, 4.2A (240V)
or, 4.6A (220V) or, 8.4A (110V)
Fuse rating (240V, 230V, 220V) . . . . . . . . . . . 250V, T5A
Fuse rating (110V) . . . . . . . . . . . . . . . 125V(min.),T10A
Fuse type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mm
Bipolar
Carrier frequency - 785kHz nominal, square wave.
Power control - Variable pulse group modu-lation set
by front panel control. Amplitude set by micro/macro range
buttons.
Load resistance for maximum output power
- 100 ohms (non-inductive) for Macro
- 50 ohms (non-inductive) for Micro
Test load - 100 ohms (non-inductive)
Output (bipolar)
Peak
Open
Crest Circuit
Symbol/Function Power factor Voltage
Coagulation
Micro range 17W ±20% Variable 150
Macro range 50W
-20%
Variable 230
Power and voltage output data diagrams are shown at the
end of section 5.
Monopolar
Carrier frequency - 475kHz nominal, square wave.
Power control - Variable amplitude set by frontpanel
controls. Preset pulse patterns set by mode switches.
Load resistance for maximum output power is 150 ohms
(non-inductive) for cut and pinpoint coag and 200 ohms
(non-inductive) for blend, specialist cut and spray coag.
Test load is 200 ohms (non-inductive) for cut and specialist
cut and 400 ohms (non-inductive) for blend, spray coag
and pinpoint coag.
Output (monopolar)
Output powers are measured to an accuracy of ±20%,
with a maximum power of 400 watts.
Peak
Open
Crest Circuit
Symbol/Function Power factor Voltage
Normal cut 345W(-20%) 1.9 1150
Blend 300W(±20%) 3.0 2200
Specialist cut 345W(-20%) 2.1 1500
Pinpoint coag. 170W(±20%) 5.1 2150
Spray coag. 79W(±20%) 8.7 4000
Power and voltage output data diagrams are shown at the
end of section 5.
+10%