Submersible cable is more expensive because it has to be reinforced to support the sensor plus its own weight in deep holes without stretching which would lead to a change in sensor position and ultimately sensor calibration.
A submersible cable also has a vent tube running through it to allow gauge reference pressure sensors access to ambient air pressure which is essential for accurate level measurement. Due to this extra complexity, submersible cable are more expensive than general purpose sensor cable and therefore the KL1 junction box helps reduce the cost of installations whilst providing a vent which prevents moisture ingress down the cable.
Although most instruments are not able to survive a direct lightning strike it is possible to protect nearby instrumentation from voltage surges which are less severe but can be just as damaging to sensitive sensor electronics without adequate discharge protection. The KL1 submersibe sensor junction box includes the option for protection from a 10 kiloamp discharge current.
If a PT100 temperature sensor probe is included in the installation the KL1 terminal box can include an option for a PT100 transmitter to convert the output from a platinum resistance thermometer to a 2 wire, 4 to 20 mA output signal.
Featured vented submersible pressure sensor products
Retrofitting ship bubbler tank gauging system with 22mm submersible level probe - A narrow 22mm diameter submersible level transmitter was used to replace an old bubbler system on a ship, providing an easy retrofit solution for fuel tanks without mechanical changes.
6m range 4-20mA submersible animal feed tank level and PT100 sensor - A hi-temp media 125°C/257°F max, RTD temperature measurement submersible liquid level sensor for submerging in an animal feed tank and measuring the depth over a range of 0 to 6m from the flush diaphragm, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
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