Terason t3000 - Page 387

Appendix F - Acoustic Output Reporting for Track 3 Acoustic Output Tables for Echo Transducers
Terason t3000 / Echo Ultrasound System User Guide 387
Acoustic Output Reporting Table for Track 3 for the 4V2A Transducer
(Terason Echo Ultrasound System in Color Flow Mode)
Note: 1. Maximum free air surface temperature of the lens is 42.3×C for this operating mode, assuming an
ambient air temperature of 23.0× C.
2. Information need not be provided for any formulation of TIS not yielding the maximum value of
TIS for that mode.
3. Information need not be provided regarding TIC for any transducer assembly not intended for
transcranial or neonatal cephalic uses.
4. Information on MI and TI need not be provided if the equipment meets both exemption clauses
given in 51.2 aa) and 51.2 dd).
MI TIS TIB TIC
Index Label Scan Non- scan
Non-
scan
A
apr
 1cm
2
A
aprt
>1cm
2
Maximum Index Value
1.57 2.18 - - - 4.23
USFDA Track
3
IEC
Associated
Acoustic
Parameter
p
r.3
p
ra
(MPa) 2.21
W
o
P (mW) 166.69 - - 266.55
min of [W
.3
(z
1
),
I
TA.3
(z
1
)]
Min of [P

(z
s
),
I
ta, 
(z
s
)]
(mW)
-
z
1
z
s
(cm) -
z
bp
z
bp
(cm) -
z
sp
z
b
(cm) 5.47 -
d
eq
(z
sp
)d
eq
(z
b
) (cm) -
f
c
f
awf
(MHz) 1.99 2.65 - - - 1.99
Dim of A
aprt
Dim of A
aprt
X (cm) 1.02 - - - 1.63
Y (cm)
1.20 - - - 1.20
PD t
d
(µsec) 1.90
PRF prr (Hz) 1500
Other
pr@PIImax p
r
at max. I
pi
(MPa) 3.10
Information
deq@PIImax d
eq
at max I
pi
(cm) -
Focal Length FL (cm) 4.0 - - 13.0
I
PA.3
@MI
max
I
pa,
at max. MI
(W/cm
2
)
228.94
Operating
Control
Conditions
Control 1 X
Control 2 X
Control 3 X
Control 4