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
Underground rainwater collection tank level transmitter with 2.5m range and 4-20mA output for BMS integration - Monitor water levels in your 2.5m deep underground tank with this submersible 4-20mA level transmitter. Ideal for rainwater harvesting and BMS integration.
Diesel fuel oil tank level sensor with 200 mbar range for internal installation - Fuel oil pressure sensor with a 4-20mA current output and a submersible electrical connection for lowering inside a Diesel fuel storage tank to measure hydrostatic level of fuel oil up to 200 millbar.