Page 1
TECHNICAL SPECIFICATIONS
Range
Code
Operating Range
in Liquids
Resolution Mounting
NPT
148 0.33 - 6 ft.
0.10 - 1.8 m
0.03”
0.7 mm
1”
ELECTRICAL SPECIFICATIONS
FEATURES
Standard 5 feet of interconnection cable
Simple push-button calibration
Output 4- 20 mA / 20- 4 mA
Built-in temperature compensation
Optional High Level Alarm relay
dual pole output 5A/230 Vac
Optional RS485 communications with
calibration, diagnostics and data
logging software
PLC compatible
Three Wire Operation
APPLICATIONS
Food and Beverages
Water
Pharmaceutical
Mounting Options
Mounting Adaptors Available:
1”- 3/4” NPT or 1”- 1/2” NPT
ENVIRONMENTAL
Temperature : - 40 to 140°F(- 40 to 60°C) PVC Body
Pressure : 1 –10 bar
Installation Category : Class II
MECHANICAL
Std. Interconnection Cable :
5’- Belden #9503 : 3 Pair-24AWG
1) Supply : 12 - 30 Vdc 1 pair shielded (Red/Blk.)
2) Output : 4 - 20 mA 1 Pair shielded (Blk./Green)
3) Comm.:RS485 (optional) 1 Pair Shielded (Blk./Wht.)
Optional Relay Cable :
5’- Belden #9493 : 3-18 AWG unshielded
1) Relay (optional) DPST 5A /230Vac
Enclosure
: PVC-94V0
Ingress Protection : NEMA 4X (IP65)
OPERATIONAL
Accuracy : +/-0.10% of max. range
(in lab using 4-20 Ma current output)
+/-0.25% of max. range (typically in field)
Response Time: Standard. Unit 2 - 3 echoes / sec.
: Std. with less damping 6 echoes / sec.
: Fast Protocol ** I.R. 10 echoes / sec.
Or higher ** IF Required
Beam Angle : 10 - 12 degree at –3dB
Loss of Echo : Programmable from 1 min. to 4 min.
(Default = 1 min.) 22mA or 2 mA output
Temp. Comp. : In transducer
Calibration : Push-button or programmable
via optional communications port
Diagnostics :(Echo Profile) via communications port
High Level Alarm 5A. Relay has hysteresis and delay
of 5% of the tank height, this can be adjusted using
Communications software. Relay’s state changes at
20mA calibration point or at 4 mA calibration point. To
switch the above “push-button” or “communication software” can be used . Using push-button press and hold
until the light goes off. Continuous green light indicates
alarm at 20mA. ,blinking green indicates alarm at 4 mA.
Relay “ON” set point is adjustable using communications software.
CATALOGUE # - On the Web return to Home Page &
refer to Catalogue Number Structure for Ordering
information. In Product Documentation refer to page 3.
Power DC 12 to 30 VDC , 0.07 A max @ 24 Vdc
ABM300 R load = (Vs — 6) / 24 mA
Output 4-20 mA Output 6.1 uA resolution
Optional
- communications port RS485
- Relay DPST 5A / 230 Vac
4.0”
Mounting 1”NPT
4.0”
New ! Fast Motion Detector
10 echoes / sec. Or Higher
INSTRUCTION MANUAL
For Model U3M Ultrasonic Sensors
Madison Company
S
ensor solutions for
today and the future
™
MF-017 Rev C ECN 6221, 10/2011
Page 1 of 2
Madison Company 27 Business Park Dr., Branford, CT 06405
1.800.466.5383 Tel: 203.488.4477 Fax: 203.481.5036
Page 2
LED
Fill
Miniprobe
Ø3.97"
Ø1.125"
Operation - An ultrasonic pulse is transmitted from the ABM sensor .
The pulse travels to the surface being monitored and is reflec ted off
this surface back to the sensor . The time of flight is divid ed by 2 ,
corrected with temperature and converted to an output signal directly
proportional to the material level.
Process
Temperature -
Temperature
Compensation
for speed of sound
Miniprobe
Junction Box
Ultrasonic Sensor
Mounting- 1" NPT
Customer
A
C
C
U
R
A
C
Y
5'(1.5m)
R
E
S
O
L
U
T
I
O
N
S
P
A
N
C
alibration Switch
N
ote: - Vdc (blk.)and
- mA (blk.) are
internally connected
5'(1.5m)
1" NPT
4.1"
1.95"
Calibration - 4-20 or 20-4 mA Output
FULL - Calibration 20 mA or 4 mA(Set Near Target)
1. Calibration mode LED colour is Green.
2. Push button and hold until LED turns Yellow (20mA)
or push button and hold until LED turns Red ( 4 mA).
3. Release button, observe LED flashes to acknowledge
the calibration.
EMPTY - Calibrate 4mA or 20mA (Set Far Target)
1. Calibration mode LED colour is Green.
2. Push button and hold until LED turns Red ( 4mA)
or push button and hold until LED turns Yellow (20ma).
3. Release button, observe LED flashes to acknowledge
the calibration.
5'(1.5m)
3.125"
Radar Standard and Exp. Proof Sensors c/w Horn Dimensional Dtl.
MF-017 Rev C ECN 6221, 10/2011
Page 2 of 2
INSTRUCTION MANUAL
For Model U3M Ultrasonic Sensors
Madison Company
Sensor solutions for
today and the future
™
Madison Company 27 Business Park Dr., Branford, CT 06405
1.800.466.5383 Tel: 203.488.4477 Fax: 203.481.5036
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