It is another magnetostrictiontype single-point liquid level switch developed by DELAVAN Company. In order to meet medium and environment’s requirement on temperature, the sensor and the control circuit within liquid level switch SONAC110 are separated from each other to form a new type of liquid level switch SONAC120 which can operate at temperature ranging from -225℃ to +204℃ and can work on a liquid tank in which pressure can reach as high as 4000psig.

DELAVAN liquid level switch

It is another magnetostrictiontype single-point liquid level switch developed by DELAVAN

Company. In order to meet medium and environment’s requirement on temperature, the sensor

and the control circuit within liquid level switch SONAC110 are separated from each

other to form a new type of liquid level switch SONAC120 which can operate at temperature

range from -225℃ to +204℃ and can work on a liquid tank in which pressure can reach

as high as 4000psig. The separation of sensor and control circuit greatly increases its service life. So, it is widely used by liquid storage tank in light industry, petroleum, and chemical industry for single point control and producing alarm signal. It is particularly ideal for the level measurement on crude oil, refined gasoline, solvent and

chemical liquid. It also can be used in storage tanks in which the temperature and pressure

is extremely high.

Sphere of application: industry such as metallurgy, chemical engineering, environmental

protection, power station, paper making, transportation and foodstuff.

Characteristic
single point liquid level switch
Magnetostriction theory is applied
can operate in environment with high pressure and high temperature
no movable component is involved.
Technical data
power supply
normal situation
115VAC
230VAC
24VDC
ultimate circumstance
95~135VAC (95 to 135VAC)
190~270VAC(190 TO 270VAC)
output
relay
5A 120VAC
5A 240VAC
3A 24VAC
DPDT TYPE
operating pressure
4000psig

operation temperature
-40℃ to 75℃ for electric component
-54℃ to +104℃ for PVC cable used by sensor
-225℃ to +204℃ for TFE cable used by sensor

delay time
adjustable from 50ms to 15s

Protection
control box: NEMA 4X IP55

distance between sensor and control box
45.7m in case that PVC cable is used
30.5m in case that TFE cable is used

warning
When 2 red LED lamps are lightened, it means liquid under measuring touch the sensor.
When the yellow LED lamp is lightened, it means charging state of the relay.

Installation
insert type, 1”NPT
mounting hole for control box: 219x76.2

weight
0.68kg for sensor
2.25kg for sensor

dimension for outlet
1/2”NPT