Enraf Nonius 1600905, User Manual

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96
1600751-4D
13.13 Vacuum pulsed mode
p
Vacuum pressure
r
Range
t
h
Hold time

13.14 Ultrasound

Ultrasound parameters:
f
p
Pulse frequency, 100 Hz fixed
t
Pulse duration, set by duty cycle
5 – 80 % and 100 % (100% is
continuous wave)
t
0.5 – 8 ms
RTPA 20
– 1.25
14 Specifications
14.1 Ultrasound parameters
See fig 13.14 for details.
Generator
Peak output Amplitude:
Duty cycle 5
– 50 % : 0 – 3 W/cm²
Duty cycle 80 % : 0 – 2.5 W/cm²
Duty cycle 100 % : 0 – 2 W/cm² (continuous wave)
Peak output power for 5 cm² applicator:
Duty cycle 5
– 50 % : 0 – 15 W
Duty cycle 80 % : 0 – 12 W
Duty cycle 100 % : 0 – 10 W (continuous wave)
Peak output power for 0.8 cm² applicator:
Duty cycle 5
– 50 % : 0 – 2.4 W
Duty cycle 80 % : 0 – 2 W
Duty cycle 100 % : 0 – 1.6 W (continuous wave)
Output meter uncertainty
: ± 20 % for any output above 10 % of maximum
Pulse frequency
: 100 Hz ± 1 % fixed
Duty cycle : 5 – 80 % and 100 % (100 % is continuous wave)
Pulse duration : 0.5 – 8 ms ± 10 % (set by duty cycle)
Temporal Peak to Average Ratio (RTPA):20 – 1.25 ± 10 % (set by duty cycle)
Treatment timer
: 0 - 30 min ± 0.1 min, linked to contact control
Contact control level : 65%
5 cm² Applicator
Ultrasound frequency:
1 MHz
: 0.98 MHz ± 2 %
3 MHz : 3.1 MHz ± 2 %