9
3.3.4
Sensor Response Curve
The sensor’s photodiode detects the emitted germicidal 253.7 nm wavelength.
3.3.5 Flow Meter
The Adenovirus system uses a single flow meter located on the primary unit to measure
the flow rate of water passing through the UV systems. The flow meter utilizes a paddle
wheel and a flow detect arm to ensure reliable measurements. The flow meter outputs
a 4-20 mA signal to the controller.
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
1E-8
1E-7
1E-6
1E-5
1E-4
1E-3
1E-2
1E-1
1E+0
200
250
300
350
400
450
500
L
in
ear
S
p
ect
ral
R
esp
o
n
se,
S
(A/
W
)
L
o
g
a
ri
th
m
ic
S
p
e
c
tr
a
l
R
e
s
p
o
n
s
e
,
S
(
A/
W
)
Wavelength,
λ (nm)
Logarithmic
Linear
