Customized SST Liquid Level Sensors

Whether that be adding or modifying electronics and software, changing outputs, adapting housing or thread styles, adding cabling, connectors or environmental protection, SST consider all options to ensure we satisfy the customers’ requirements. SST’s application engineers work directly with our customers’ engineers to provide complete application and technical support in order to develop customised solutions that will meet their exact specifications.

Our services include:

  • Design and realisation of components, sensors and instrumentation
  • Fast Prototyping
  • Testing
  • Training

The customised solutions below were designed in response to customer demand and are now available as general sales items:

Water ingress/ leak detection sensor

Application: Detecting the unwelcome presence of liquid leaking into an enclosure
Environment: Monitors within the frame of a server cooling system for leakage of fluid from the system into the server room enclosure
Connector: Supplied with flying leads to fit to customer screw terminals. Wires exit the sensor housing at 90 degrees to minimise mounting space
Output: Triggers a high output to alarm on fluid detection
Custom housing/Electronics: Low profile M12 x 1- 8g Polysulfone housing with an operating temperature from -25°C to +80°C LLC100D3SH Type 1 housing with side exit wires

Level Switch for Automotive Header Tank

Application: Coolant header in tank within mobile construction equipment
Environment: Exposure to high vibration with a lot of movement over harsh outdoor terrain
Connector: Packard automotive connector
Special Output: Failures such as broken wires can be detected by setting the high or low output voltage set between the supply and 0V
Vs = 5 V DC
Output high = ~4 V DC
Output low = ~1.5 V DC
Custom Housing: 1/4″ NPT thread, stainless steel housing. Required for the high torque fixing to the tank where plastic housings may check or shear.

Level Switch for Diesel Filter Bowl

Application: Dual system on board commercial vehicles. Sensor is in the diesel condensate trap on CNG powered vehicles indicates when there is a high level of diesel in filter bowl, meaning that it should be emptied at the next service opportunity.
Environment: Exposure to diesel fuel, high vibration and high pressures (> 120 bar burst pressure)
Connector: ISO 15170 3-pin automotive connector
Special Output: PWM output signal: failsafe option which indicates if sensors has failed or the conenecting cable is damaged.
Additional Electrical Spec: Transient over voltage protected input and short-circuit protected output.
Custom Housing: M14x1.5 thread, 303 stainless steel housing, polysulphone tip.

Level Switch for Underwater Gearbox

Application: Underwater gearbox. Sensor is submersed 90% of the time. Tip of the sensor is in a gear box to indicate low oil level and prevent a run-dry scenario.
Environment: Rear end of the sensor and cable termination is in salt water, wire will be occasionally moving.
Connector: AMP Superseal 1.5 series connector
Cable: 1m of 3-core cable with specially selected jacket material suitable for use in sea water, fuels and oul with protective corrugated outer tubing
Special Output: High in air output to the ECU of a boat

Coolant Level Sensor for Engine Radiator

Application: Coolant level sensor in the radiator of an engine for off-highway vehicles and generators. Replacement of a 242985 Gems Capacitive Level Sensor
Environment: Up to 125 degrees Celsius, high vibration, movement of reservoir and sloshing of liquid occur
Connector: Integral 3-pin Deutsch DT04-3P connector
Output: N-Type, low in air (GEMS “Dry Sink” equivalent); programmed with actuation delay of 5 seconds for use in moving liquids
Custom Housing:1/2″ NPT thread with brass housing

Level Switch for Automotive Cleaning Process

Application: Automated cleaning/maintenance machine for medical tools. Monitoring water and oil levels during processes for external sterilisation and internal gear lubrication.
Environment: Retrofit into a very small space and designed to be a drop-in replacement for an obsolete sensor.
Connector: JST connector with short cable, all standardised to customer’s requirements and connections
Output: Special high-in-air configuration and designed to allow operation close to reflective surfaces
Custom Housing/Electronics: Entire design of electronics and housing had to be shortened. This affected both the PCB and housing designs