The CNS Rangeable Low Level Transducers are specifically designed for shallow depth measurements in rivers, weirs and open channels.
The CNS low level sensor has an all stainless steel construction for freshwater use or a duplex stainless steel and Hastelloy C276 construction for use in seawater or brackish water.
The CNS sensing diaphragm is in direct contact with the water and has a large surface area which makes it very sensitive to low pressure measurements.
The CNS smart electronics provide a 5 to 1 turndown ratio for each pressure range, open channel flow options for 3/2 or 5/2 law output and custom non-linear outputs.

The DS 200 combined hydrostatic level switch, gauge and sensor is externally powered via the analogue signal electrical connection and level can be displayed in any engineering units via the 4 digit LED display. A variety of analog output signals maybe specified and a choice of 1 or 2 PNP contacts for use as alarms or for controlling pumps and valves.

Special product features include a turndown ratio of 5 to 1 for the 3 wire 4-20mA output version for flexibility when stocking spares and an ATEX approved version of the 2 wire 4 to 20 mA output for hazardous area applications.

The IMCL strain gauge output level sensor is suitable for low power consumption applications which requires a high input resistance and a low input supply voltage. A four arm wheatstone bridge circuit provides an output signal in millivolts which is proportional to the supply voltage.

For aggressive media such as seawater the IMCL submersible mV output level sensor has a Alumina ceramic thick film strain gauge diaphragm which has excellent corrosion resistant properties with the harshest of media plus a stainless steel 316L sensor housing. A sensor housing made from high grade Duplex stainless steel (UNS 31803) and FEP cable can be specified for extra corrosion resistance.

The IMCL IP68 absolute pressure sensor is ideal for measuring liquid depth where it is not possible to fit a vent for referencing to atmospheric pressure. In application such as measuring the depth of an ROV, submarines and other submersible apparatus it is not possible to run cables to the surface and therefore an absolute pressure sensor is used instead and the atmospheric pressure is deducted by other means.

For aggressive media such as seawater the IMCL submersible absolute depth sensor has an Alumina ceramic diaphragm which has excellent corrosion resistant properties with the harshest of media plus a stainless steel 316L sensor housing. A sensor body made from high grade Duplex stainless steel (UNS 31803) and FEP cable can be selected for aggresive media.

The KL1 enclosure is made from a die cast aluminium with a grey powder coating. The internal environment is sealed to IP66 to prevent dust or moisture ingress. A PTFE filter pressure balance is incorporated into the enclosure wall to provide a vent path for the submersible sensor cable.

Two M16 x 1.5 polyamide cable glands with NBR seals are fitted to the underside of the termination box to provide strain relief and an IP68 seal for the cable entry of the over-ground and submersible sensor cable. The wires are terminated inside via vertical screw clamps which can accommodate wire with diameters up to 2.5mm2.

In addition to providing a junction for a 2 wire 4-20mA output signal from a submersible borehole level sensor the KL1 termination box also has the options for including a PT100 transmitter and over-voltage discharge protection to 10 kiloamps related to nearby lightning strikes.

The LMK 306 ground water level transmitter has a 316L stainless steel body with a water tight electrical connection for permanent submersion in freshwater. The sensing element is an Alumina ceramic substrate with thick film strain gauges which has high corrosion resistance properties.

The LMK307 immersible waste water level sensor has a stainless steel housing and a flush ceramic diaphragm which prevents from the build up of solids of time and makes it easy to clean.

The LMK 331 aggressive media level transmitter is designed for measuring the level in chemical storage tanks where stainless steel and other metals are not compatible with the media.
The LMK331 chemical level sensor is easily mounted by hand to a tank using the knurled part of the sensor body.
The wetted parts in contact with the tank contents are a semi-flush Ceramic diaphragm or PVDF pressure connection, FKM, NBR or EPDM O ring seals.
The LMK-331 level transducer can measure the level in small and large Intermediate Bulk Containers (IBC) and for hazardous area applications requiring intrinsic safety a ATEX approved version can be specified.

The LMK351 high abrasion resistant level sensor incorporates ceramic capacitance diaphragm technology which exhibits high accuracy and over-pressure at low liquid levels.
The capacitive aluminium oxide (Al2O3) ceramic sensing diaphragm of the LMK351 chemical level sensor is highly resistant to abrasive materials and corrosive chemicals such as acids and alkalines. For chemicals that are not compatible with stainless steel 316Ti there is the option for PVDF screw-in fittings.
For installations where frequent external washdown of storage tanks and equipment is required an IP68 cable gland can be selected for the LMK351 aggressive media level transmitter to make it waterproof.
A liquid level range from 1.3 up to 656 feet of water column can be specified for the LMK351 low range chemical level sensor with measurement accuracy of ±0.35 or 0.25% full scale.
For hazardous areas with volatile gases or dust present the LMK351 chemical level sensor has optional ATEX approved intrinsically safe electronics for use with IS barriers.

The LMK382 waste water level sensor has a stainless steel housing and a flush ceramic diaphragm which prevents clogging and facilitates cleaning.

The LMK 458 marine level transmitter has a capacitive ceramic sensing diaphragm which is compatible with sea water and salt spray when the copper nickel alloy option is specified.
The LMK458 marine level transmitter is Germanischer Lloyd (GL) and Det Norske Veritas (DNV)approved for marine use and can be used on seawater ballast, fuel, oil, service and waste water systems.
ATEX approved for intrinsically safe use in hazardous environments the LMK-458 marine approved level transmitter can also be used on ship systems which are handling flammable and volatile chemicals such as oil, gas, liquid petroleum gas (LPG) and liquid natural gas (LNG).
The LMK-458 ballast level sensor comes in a range of pressure fittings for either lowering into a tank, screwing into a pipe or flange mounting to the wall of a tank.

The LMK 807 chemical resistant immersible level sensor includes a ceramic pressure sensing diaphragm which has a high corrosion resistant to most chemicals.
For waste-water applications the ceramic sensing element of the LMK-807 submersible level transmitter is semi-flush to prevent clogging and facilitate easy cleaning.

The LMK 809 chemical resistant immersible level sensor includes a ceramic pressure sensing diaphragm which is highly corrosion resistant to most chemicals.
For waste-water applications the ceramic sensing element of the LMK-809 submersible level transmitter is semi-flush to prevent clogging and facilitate easy cleaning.

The LMP 305 bore-hole level sensor has a 316 stainless steel body with IP68 sealing for permanent immersion in water. The sensing element is a miniature silicon chip diaphragm which is mounted inside an oil filled capsule to provide a narrow size with enhanced accuracy & sensitivity performance.

The LMP 307 submersible level transmitter is a general purpose sensor for measuring the level of fresh water or other mildly corrosive liquids.
The LMP-307 submersible level transmitter can be used to measure the water level in reservoirs, lakes, open flow channels & weirs and groundwater level of boreholes.
Relatively low water levels can be measured with the LMP307 submersible level transmitter despite its 27mm diameter. This is possible by incorporating a highly sensitive miniature silicon diaphragm with a very thin isolation membrane back filled with silicone oil.

The tape can be supplied graduated in either metric or imperial units and is made from Kevlar reinforced polyethylene with stainless steel conductors for the probe connections.

The probe is constructed from stainless steel and Teflon and has a diameter of 16mm (0.63 inches). It is sealed to IP68 and pressure tested to the full length of the tape. When the probe touches the water it will send a signal to the reel electronic unit which sounds an audible buzzer and lights an LED indicator. After a period of time the buzzer will automatically shut off.The indicating circuit is powered by a 9 volt battery.

The reel consists of either a rugged nylon (<= 150m/500ft) or a aluminium (> 150m/500ft) spool mounted on a steel frame with a combined handle, reel lock and casing hanger.

The water level tape reel unit includes a submersible sensor which is lower into the well or borehole unitl the buzzer sounds and the LED bulb lights up indicating that the probe has touched the water. The sensitivity of the sensor can be adjusted to prevent false readings triggered by running water or condensation.

The black tape print is protected by the durable polyethylene jacket and is avialble in metres or feet graduations. In order for the readings to be more visible to the eye the print is set on a yellow background.

The probe is constructed from stainless steel and Teflon and has a diameter of 16mm (0.63 inches). It is sealed for submersible use and tested to the maximum depth of 600 metres (2000 feet). When the probe touches the water it will emit a signal to the reel electronic unit which triggers an audible alarm and activates an LED. After a short while the audible alarm will turn off automatically. The electronic warning module is powered via a 9v battery.

The reel consists of either a rugged nylon (<= 150m/500ft) or a aluminium (> 150m/500ft) spool mounted on a stainless steel axle and steel frame with a combined handle, reel lock and casing hanger.

The SWL is specially designed for protection against corrosion in salt water. The body of this submersible seawater level sensor is made from Aluminium Bronze which is a copper alloy with a 10% Aluminium composition and a smaller percentage of Manganese, Nickel and Iron. Aluminium Bronze is a proven long lasting material used extensively by the marine industry to manufacture components which will be permanently immersed in seawater.

For added protection on permanent installations a TPE coated cable can be specified for the electrical connecion which is highly resistant to damage from long term exposure to seawater.

The SWL IP68 saltwater depth sensor has many different types of analogue output signal to match any application including a 4-20mA current loop signal for installations on ships or offshore platforms, or a mV/V strain gauge output for low battery consumption on isolated environmental monitoring instrumentation at sea or around coastal waters.