AD8 / AD9 Series
Ultrasonic air bubble and air-in-line sensors
FEATURES
· Non-invasive pulse-type ultrasonic
technology
· Compact design features integral
programmable micro-controller
· High accuracy and reliability
· Dry coupled, no coupling gel required
· Output signal not affected by fluid or
tubing colour
· High EMI and RFI noise immunity
SPECIFICATIONS
Maximum ratings
Supply voltage (V
S
)
Supply current
without LED
with LED
Temperature limits
Storage
Operating
Humidity limits
5 V
DC
(± 10%)
15 mA
24 mA
ELECTRICAL CONNECTION
RED
BLACK
Input DC Voltage
Ground
Self-Test
CMOS Logic Output
Sensor
-20 ... 85 °C
5 ... 60 °C
0 - 95 %RH
(non-condensing)
Note: Self-Test provides an electronic check for
false wet output signals.
Connect to Ground for normal operation.
GREEN
ORANGE
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AD8 / AD9 Series
Ultrasonic air bubble and air-in-line sensors
PERFORMANCE CHARACTERISTICS
Characteristics
Logic low voltage
Logic high voltage
Output sink current (output low)
Output source current (output high)
Response time
wet to dry
dry to wet
V
S
- 0.5
5
5
0.215
46
Min.
Typ.
Max.
0.5
Units
V
mA
ms
OUTLINE DRAWING
D
A
B
C
G
H
E
H
F
Wires
Dimensions
Part no.
AD8...01
AD...02
AD9...4M
AD...03
AD...04
AD9...06
AD9...08
AD9...10
Tubing siz e
1/16" O.D.
1/8" O.D.
4 mm O.D.
3/16" O.D.
1/4" O.D.
3/8" O.D.
1/2" O.D.
5/8" O.D.
A
0.045
0.100
0.125
0.150
0.200
0.310
0.430
0.520
Threaded holes
4-40 x 0.22 (5.59)
B
0.150
0.325
0.350
0.315
0.400
0.525
0.750
0.850
C
1
0.750
0.620
0.650
0.650
0.700
0.825
1.050
1.150
D
1.12
E
0.80
F
0.88
G
0.55
H
0.165
1.00
0.75
0.75
0.50
0.125
Note:
1. The following products come with an extension base which adds another 0.30 inches to dimension C:
AD8...02, ...03, ...04
AD9...4M, ...08, ...10
all dimensions in inches
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AD8 / AD9 Series
Ultrasonic air bubble and air-in-line sensors
ORDERING INFORMATION
Series
Options
AD
8
9
Design type
Options
Application
E
End of sample
B
Bubble size equal
to tube I.D.
S
Bubble size down
to 50 % of tube I.D.
01
02
4M
03
04
06
08
10
Tubing siz e
1/16 inch O.D.
1/8 inch O.D.
4 mm O.D.
3/16 inch O.D.
1/4 inch O.D.
3/8 inch O.D.
1/2 inch O.D.
5/8 inch O.D.
for rigid tubing
0000
without LED,
36 inch cable
for soft tubing
0001
with LED,
36 inch cable
Notes:
01: only as AD8-...E01
4M: only as AD9-...
06: only as AD9-0000...
08: only as AD9-0000...
10: only as AD9-0000-E...
Example:
AD
9
-
0000
-
B
4M
Notes:
Sensortechnics is asking customers for a sample of their tubing. The sensor will then be
calibrated for exactly this tubing. For proper function the sensor should only be used
with the tubing which was sent to Sensortechnics!
Custom specific modifications are widely available. Please contact your nearest
Sensortechnics sales office for further information.
Sensortechnics reserves the right to make changes to any products herein. Sensortechnics does not assume any liability arising out of the
application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others.
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