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Non-Contact Level Sensors
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download product spec sheet pdf
 
RELATED PAGES: Reference | Install Manuals | Specification Worksheet
non-contact level sensors
Non-Contact Level Sensors: ultrasonic and radar models, available in both standard and engineered configurations
 
USR Series ultrasonic sensors, including the Madison-Omni ® sensor with on-board display and alarm.
USR Series ultrasonic sensors, plus the Madison-Omni® sensor with on-board display and alarms

U & R Series
Ultrasonic & Radar Non-Contact Level Sensors

Madison Company's expanding line of non-contact level sensors utilize both ultrasonic and radar technologies. The U and R Series models are available in both standard and engineered configurations, making them cost-effective solutions to your specific application needs. These products can provide accurate single-point or continuous level measurement for a full range of liquids and solids. Madison's non-contact sensors are temperature compensated, with a self-cleaning sensor face and on-board push-button calibration. Most models come with communication and programming capabilities to aid in self-adjusting to application conditions.

The USR medium- and long-range ultrasonic sensor models are compact, low-cost designs that are factory set for defined ranges. Just mount and provide power, and your level monitoring begins.

For user-programmable settings and on-board display with alarm, the Madison-Omni® ultrasonic sensor is the compact and secure solution for continuous level measurement.

Download Product Features Sheet (165k)
Download Ultrasonic/Radar Overview Brochure (290k)

Models Available (click for details):
• Ultrasonic Level Sensors
    » Madisonic™ U4359 Short-Range Ultrasonic Level Sensor
» Madison-Omni® Ultrasonic Sensor with integrated display and alarm
» U3M "Mini Probe" Ultrasonic Level Sensor
» USR Series Medium- and Long-Range Ultrasonic Level Sensors
» NPT, Flange and Swivel Mounts for Ultrasonic Level Sensors
• Radar Level Sensors
  » Sanitary (Food-Grade) Radar Level Sensors
Non-Contact product line features, benefits and applications
Features:
• Temperature compensated
• Self-cleaning sensor face
• Programmable
• Push-button calibration
• Self-adjusting to field conditions
U Series Ultrasonic Sensors
MODEL VOLTS DWG. NO. HOUSING MATL. STD. (OPTIONAL) COMM. PORT RANGE RESOLUTION MOUNTING OPERATING FREQUENCY BEAM ANGLE APPROVALS
(FEET) (M) (INCH) (MM)
U3-45C2 24 DC NC-3 Aluminum (PVC-94V0) RS232 1.0-60 0.3-18.2 0.270 6.8 3.0" NPT 45 KHz 9° C,H
U3-45C4 24 DC NC-3 Aluminum (PVC-94V0) RS485 1.0-60 0.3-18.2 0.270 6.8 3.0" NPT 45 KHz 9° C,H
U4-45C2 110 AC NC-3 Aluminum (PVC-94V0) RS232 1.0-60 0.3-18.2 0.270 6.8 3.0" NPT 45 KHz 9° C,H
U4-45C4 110 AC NC-3 Aluminum (PVC-94V0) RS485 1.0-60 0.3-18.2 0.270 6.8 3.0" NPT 45 KHz 9° C,H
U4-45C2 230 AC NC-3 Aluminum (PVC-94V0) RS232 1.0-60 0.3-18.2 0.270 6.8 3.0" NPT 45 KHz 9° C,H
U4-45C4 230 AC NC-3 Aluminum (PVC-94V0) RS485 1.0-60 0.3-18.2 0.270 6.8 3.0" NPT 45 KHz 9° C,H
U3-70 24 DC NC-4 Aluminum (PVC-94V0)   0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U3-70C2 24 DC NC-4 Aluminum (PVC-94V0) RS232 0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U3-70C4 24 DC NC-4 Aluminum (PVC-94V0) RS485 0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U4-70 110 AC NC-4 Aluminum (PVC-94V0)   0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U4-70C2 110 AC NC-4 Aluminum (PVC-94V0) RS232 0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U4-70C4 110 AC NC-4 Aluminum (PVC-94V0) RS485 0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U4-70 230 AC NC-4 Aluminum (PVC-94V0)   0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U4-70C2 230 AC NC-4 Aluminum (PVC-94V0) RS232 0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U4-70C4 230 AC NC-4 Aluminum (PVC-94V0) RS485 0.8-30 0.2-9.1 0.130 3.4 3.0/2.0" NPT 70 KHz 12° C,H
U2-52 Loop Pwr NC-7 PVC-94V0 (Aluminum)   0.9-50 0.3-15.2 0.230

 5.8

 2.0" NPT 52 KHz 12°  
U2-70 Loop Pwr NC-7 PVC-94V0 (Aluminum)   0.8-30 0.2-9.1 0.130 3.3 2.0" NPT 70 KHz 12°  
U2-80 Loop Pwr NC-7 PVC-94V0 (Aluminum)   0.7-20 0.2-6.1

 0.088 2.2 2.0" NPT 80 KHz 12°  
U2-81 Loop Pwr NC-7 PVC-94V0 (Aluminum)   0.6-16 0.2-4.9 0.070 1.8 1.5" NPT 81 KHz 12°  
U2-148 Loop Pwr NC-7 PVC-94V0 (Aluminum)   0.4-9 0.1-2.7 0.040 0.98 1.0" NPT 148 KHz 12°  
U Series Mini Ultrasonic Sensors
MODEL VOLTS DWG. NO. HOUSING MATL. STD. (OPTIONAL) COMM. PORT RANGE RESOLUTION MOUNTING OPERATING FREQUENCY BEAM ANGLE APPROVALS
(FEET) (M) (INCH) (MM)
U3M-148 24 DC NC-9 PVC-94V0   0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148R 24 DC NC-9 PVC-94V0   0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148C485 24 DC NC-9 PVC-94V0 RS485 0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148C485R 24 DC NC-9 PVC-94V0 RS485 0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148S15 24 DC NC-9 PVC-94V0   0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148S15R 24 DC NC-9 PVC-94V0   0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148S15C485 24 DC NC-9 PVC-94V0 RS485 0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U3M-148S15C485R 24 DC NC-9 PVC-94V0 RS485 0.33-6 0.1-1.8 0.040 0.98 1" NPT 148 KHz 12°  
U Series Sanitary Ultrasonic Sensors
MODEL VOLTS DWG. NO. HOUSING MATL. STD. (OPTIONAL) COMM. PORT RANGE RESOLUTION MOUNTING OPERATING FREQUENCY BEAM ANGLE APPROVALS
(FEET) (M) (INCH) (MM)
U3-70S 24 DC NC-8 Aluminum (PVC-94V0)   0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U3-70SC2 24 DC NC-8 Aluminum (PVC-94V0) RS232 0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U3-70SC4 24 DC NC-8 Aluminum (PVC-94V0) RS485 0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U4-70S 110 AC NC-8 Aluminum (PVC-94V0)   0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U4-70SC2 110 AC NC-8 Aluminum (PVC-94V0) RS232 0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U4-70SC4 110 AC NC-8 Aluminum (PVC-94V0) RS485 0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U4-70S 230 AC NC-8 Aluminum (PVC-94V0)   0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U4-70SC2 230 AC NC-8 Aluminum (PVC-94V0) RS232 0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U4-70SC4 230 AC NC-8 Aluminum (PVC-94V0) RS485 0.8-30 0.24-9.1 0.130 3.3 2.0" Ferrule 70 KHz 12° C,H
U3-80S 24 DC NC-8 Aluminum (PVC-94V0)   0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U3-80SC2 24 DC NC-8 Aluminum (PVC-94V0) RS232 0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U3-80SC4 24 DC NC-8 Aluminum (PVC-94V0) RS485 0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U4-80S 110 AC NC-8 Aluminum (PVC-94V0)   0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U4-80SC2 110 AC NC-8 Aluminum (PVC-94V0) RS232 0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U4-80SC4 110 AC NC-8 Aluminum (PVC-94V0) RS485 0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U4-80S 230 AC NC-8 Aluminum (PVC-94V0)   0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U4-80SC2 230 AC NC-8 Aluminum (PVC-94V0) RS232 0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U4-80SC4 230 AC NC-8 Aluminum (PVC-94V0) RS485 0.7-20 0.21-6.1 0.088 2.2 2.0" Ferrule 80 KHz 12° C,H
U3-81S 24 DC NC-8 Aluminum (PVC-94V0)   0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U3-81SC2 24 DC NC-8 Aluminum (PVC-94V0) RS232 0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U3-81SC4 24 DC NC-8 Aluminum (PVC-94V0) RS485 0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U4-81S 110 AC NC-8 Aluminum (PVC-94V0)   0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U4-81SC2 110 AC NC-8 Aluminum (PVC-94V0) RS232 0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U4-81SC4 110 AC NC-8 Aluminum (PVC-94V0) RS485 0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U4-81S 230 AC NC-8 Aluminum (PVC-94V0)   0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U4-81SC2 230 AC NC-8 Aluminum (PVC-94V0) RS232 0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U4-81SC4 230 AC NC-8 Aluminum (PVC-94V0) RS485 0.6-16 0.18-4.9 0.070 1.8 2" or 1-1/2" Ferr. 81 KHz 12° C,H
U3-148S 24 DC NC-8 Aluminum (PVC-94V0)   0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U3-148SC2 24 DC NC-8 Aluminum (PVC-94V0) RS232 0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U3-148SC4 24 DC NC-8 Aluminum (PVC-94V0) RS485 0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U4-148S 110 AC NC-8 Aluminum (PVC-94V0)   0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U4-148SC2 110 AC NC-8 Aluminum (PVC-94V0) RS232 0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U4-148SC4 110 AC NC-8 Aluminum (PVC-94V0) RS485 0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U4-148S 230 AC NC-8 Aluminum (PVC-94V0)   0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U4-148SC2 230 AC NC-8 Aluminum (PVC-94V0) RS232 0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
U4-148SC4 230 AC NC-8 Aluminum (PVC-94V0) RS485 0.4-9 0.12-2.74 0.040 0.98 2" or 1-1/2" Ferr. 148 KHz 12° C,H
Maximum operating temperature for PVC-94V0 is 60°C. Optional materials for higher temperatures are available. All the above models are available with AC or DC power.
U Series Madison-Omni Sensors
MODEL VOLTS DWG. NO. HOUSING MATL. STD. (OPTIONAL) RANGE RESOLUTION MOUNTING OPERATING FREQUENCY BEAM ANGLE APPROVALS
(FEET) (M) (INCH) (MM)
UM4270-1 18-30 DC NC-15 SS 4.92 1.5 0.12 3.0 Flange 180 KHz 8° C
UM4270-4 18-30 DC NC-15 SS 8.20 2.5 0.20 5.0 Flange 130 KHz 8° C
UM4270-3 18-30 DC NC-15 SS 4.92 1.5 0.12 3.0 Flange 180 KHz 8° C
UM4270-6 18-30 DC NC-15 SS 8.20 2.5 0.20 5.0 Flange 130 KHz 8° C
U Series Madison-Omni Sensor Accessories
K5 PU-02SG – Ready-made cable; 5-pole, 2m length, molded-on straight plug
K5 PU-05SG – Ready made cable; 5-pole, 5m length, molded-on straight plug
K5 PU-10SG – Ready-made cable; 5-pole, 10m length, molded-on straight plug
K5 PU-02SW – Ready-made cable; 5-pole, 2m length, molded-on 90° angled plug
K5 PU-05SW – Ready-made cable; 5-pole, 5m length, molded-on 90° angled plug
K5 PU-10SW – Ready-made cable; 5-pole, 10m length, molded-on 90° angled plug
KB05 PU-W – For user-constructed cable; 5-pole, 90° angled plug
KB05 PU-G – For user-constructed cable; 5-pole, straight plug
USR Series Medium- and Long-Range Ultrasonic Sensors
MODEL VOLTS DWG. NO. HOUSING MATL. OUTPUTa RANGE RESOLUTION MOUNTING OPERATING FREQUENCY BEAM ANGLE APPROVALS
(INCHES)