Monitoring Our Precious Resource


Control Electronics model ERS-560 Ultrasonic Level Monitor is an accurate, non-contacting liquid level measuring system.  The unit monitors liquid level in almost any standard tank configuration using sophisticated ultrasonic ECHO ranging techniques. The PVC sensor is supported above the liquid level providing accurate, instantaneous levels along with calculated stored gallons, data logging, two 4-420 mA. analog outputs and 5 programmable control relays with independent ON/OFF settings for differential control.

The system features easy programming and set up. The sensor operates with a low pulsed voltage making it environmentally non-hazoardous. Control pumps with lead/lag alternate function.

The US70TC Sensor uses an inexpensive twisted pair shielded cable, 700 feet maximum.  The sensor uses a lower pulse voltage than most other manufacturers.  The sensor is easily mounted using PVC components and due to the low operating voltage,  is considered non-hazardous, eliminating potential arcing of a faulty cable or connection.

ERS-560 / 560DX Ultrasonic Level Monitor

Note: Fiberglass enclosure shown has been updated to an ABS plastic enclosure.

The US70TC Sensor with built-in temperature probe, uses an inexpensive twisted pair shielded cable. No complicated multi-pair cable or expensive coaxial cable.


Monitoring Levels in:

 - Sewage Treatment Plants

 - Bar Screen Control

 - Industrial Storage Tanks

 - Wet Well Lift Station Control

 - Railroad Tank Cars

 - Positioning Control

 - Lagoon and Basin Level Control



 - Quick, Easy, Menu Driven Programming

 - Five Control Relays with ON/OFF settings for 

   Alarms, Pumps etc.

 - 200 Day Data Logging of end of day  liquid level 

    and total gallons of product

 - Waterproof NEMA 4X, IP65 Rated ABS Plastic 

   Enclosure With Clear Hinged cover

 - Two Independent 4-20 mA. outputs, 


 - Alternate LEAD/LAG function


built-in Equations

 - Cylindrical  10-999 inch diameter  

 - Rectangular  1-999 inches per side

 - Square  1-999 inches per side

 - Horizontal 

 - Sphere

 - None

Dimensions used to calculate approximate stored gallons

For Programming Meter, RESETing Meter and Trouble Shooting go to SUPPORT.


Power:              120/220 VAC, ±15%, 50/60 Hz @ 15 watts max. 

Temperature:    20°F to 120°F

Display:             2 x 20 character, alphanumeric LCD with backlight

Totalizer:           8 digit accumulative with programmable multiplier;         

                         x1, x10, x100, x1000

Outputs*:          Two independent 4-20 mA isolated into 1000 ohm load      

                         each, ±1.0% of full scale.  

                         RS-232 terminal ( USB with adapter ), 5  control 

                         relays with ON/OFF settings, LEAD/LAG function, all  

                         programmable. Relay contacts SPDT 5A/250 VAC

Span Range:    0-10.0” to 0-220.00” 

Dead Band:      12.0” to 36.0” adjustable blanking

Resolution:       0.01”, 0.01 GPM ( LCD Display )

Accuracy**:      ±0.7% of range.  Calculated error ±0.04%

Memory:           Flash and non-volatile RAM ( 3 V battery backup )

Equations:        Cylindrical, Rectangular, Square, Sphere, Horizontal, None

Data Log*:       200 day, 24 hour flow summary: min, max Levels, time 

                        stamped, end of day level and gallons. ( down load or view 

                        on LCD display )

                        Sampled level in inches with programmable log rate of

                        00-99 minutes ( 1 minute increments ) time  stamped  

                        EVENT list time stamped 

*    The ERS-560DX unit has no relay / RS-232 outputs or data logging

**   Field conditions, such as turbulence, poor installation etc., may  

      affect the apparent accuracy.

ERS-560/560DX Level Monitor Specifications          11/22

Sensor w/Temp Probe ( US70TC Sensor )

Material:             PVC Housing, Epoxy

Beam / Freq.:     5° Conical, 40 Khz pulsed

Temperature:    -10°F to 120°F operating

Cable:                30 foot twisted pair, Up to 600 ft. spliced in-field.  Belden # 8451 or equal.

Dimensions:       3.0” dia. x 4.2” len

Mounting:           3/4” male ( 3/4” female with supplied union joint )

Rating:               Sensor is considered explosion proof, corrosion resistant, immersible


Material:            ABS Plastic with clear hinged Polycarbonate cover, stainless steel hinges  

                          and  mounting hardware

Rating:              NEMA 4X, IP65, Dust-Tight, Water-Tight, Corrosion Resistant, CSA / UL 


Dimensions:      10.65” H x 6.85” W x 5.55” D

Mounting:          6.1” x 11.6”


PVC Sensor Mounting Kit;  Additional Sensor cable; Additional Manuals; 120 VAC, 6 foot power cord installed


The ERS-560 and 560DX units are pretested and inspected before shipping.  Warranty is against defects in parts and workmanship for a period of one (1) year from ship date.

Specifications and Design are subject to change without notice.  

These specifications supersede all other published specifications.

Made in USA

© Control Electronics Inc., 2020

   Designing / Manufacturing Since 1980