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  • Data Loggers
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Novus Automation Inc.

Home / Our Brands / NOVUS Automation Inc. / Sensors & Transmitters / Level Transmitters / Slimline Hydrostatic Level Transmitter / Shallow Range/Narrow Access Tank

Shallow Range/Narrow Access Tank

When measuring shallow liquid levels in specialised industrial environments, standard transmitters fail for two reasons: they are too bulky to fit existing tank entry ports, or their metallurgy cannot survive harsh process fluids.

The Novus WL320 solves both challenges natively. Featuring an ultra-slim 19 mm profile, it slips easily into tight 1″ inspection bungs, narrow vertical guide tubes, and restricted dosing tank openings. Built entirely from  316L Stainless Steel, it delivers elite corrosion resistance where cheaper sensors degrade.

WL320 Advantages for Shallow Tanks

  • True Barometric Balancing: Shallow liquid columns generate very little pressure. The WL320 uses an internal capillary vent tube to continuously cancel out surface weather shifts, preventing false level readings.

  • Zero-Friction Deployment: The sleek, smooth body profile prevents the transmitter from catching or hanging up on tight pump couplings, internal tank baffles, or narrow bracket assemblies.

  • Industry-Standard 2-Wire Loop: Features a standard 4-20 mA current output powered entirely by the signal loop (12 to 36 vDC). This allows easy, direct integration into standard PLCs, RTUs, data loggers, and local panel displays.

  • Chemical & Hygienic Resilience: The complete 316L stainless steel build handles brackish water, chemical dosing solutions, oils, and aggressive clean-in-place (CIP) industrial washdown cycles.

Applications

Drop-in monitoring for older industrial tanks that only feature a narrow 1" inspection port where the WL420 cannot fit.
Shallow process vessels holding mild acids or caustic wash solutions that demand full 316L Stainless Steel chemical resistance.
Shallow environmental monitoring where salt-heavy water would degrade the 304 body of the WL420.
Shallow tanks used in metal anodising or electroplating where vapours are highly corrosive to lower-grade metals.

Frequently Asked Questions

â–¶ Q: Will it fit standard 1" tank ports?
A: Yes. Its ultra-slim 19mm profile passes effortlessly through tight inspection bungs.
â–¶ Q: Can this sensor measure harsh chemicals?
A: Yes. Full Stainless Steel 316L construction protects it from aggressive chemical baths and vapours.
â–¶ Q: Why does a shallow sensor need a vented cable?
A: The vented cable allow the sensor to automatically cancel out any barometric pressure shifts that ruin shallow accuracy.
â–¶ Q: How do I protect the internal vent tube?
A: Terminate the cable inside a Vented Compensation Box to block moisture and dust.
â–¶ Q: Is it safe for saltwater or coastal pools?
A: Yes. The premium 316L Stainless Steel Construction prevents pitting corrosion from brackish or salt water.
â–¶ Q: How do I prevent clogging from tank sediment?
A: Suspend the sensor 10–15 cm above the tank floor, or inside a guide pipe.

The sensors listed below all come with 5 m vented cable. Click the more info and you can opt for a version with a 15 m vented cable.

8809101005

8809101005

Slimline WL320 Submersible Hydrostatic Level Transmitter. Depth Range 1mH2O. 2-Wire Loop Powered 4-20mA Output with a 12-36vDC Power Supply. 5m Polyurethane (PUR) Cable with Ventilation Tube. Stainless Steel Sensor with 140mm Body Length and 19mm Diameter.

£224.59
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8809101605

8809101605

Slimline WL320 Submersible Hydrostatic Level Transmitter. Depth Range 1.6mH2O. 2-Wire Loop Powered 4-20mA Output with a 12-36vDC Power Supply. 5m Polyurethane (PUR) Cable with Ventilation Tube. Stainless Steel Sensor with 140mm Body Length and 19mm Diameter.

£274.62
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8809102505

8809102505

Slimline WL320 Submersible Hydrostatic Level Transmitter. Depth Range 2.5mH2O. 2-Wire Loop Powered 4-20mA Output with a 12-36vDC Power Supply. 5m Polyurethane (PUR) Cable with Ventilation Tube. Stainless Steel Sensor with 140mm Body Length and 19mm Diameter.

£224.59
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Barometric Compensation Box

Accurate hydrostatic measurement relies entirely on balancing the sensor against local atmospheric pressure changes via an internal cable vent tube. To prevent moisture, humidity, and dirt from entering this delicate tube and damaging your transmitter, we highly recommend installing a specialised Vented Compensation Box. This enclosure allows the sensor to breathe freely while utilising a replaceable desiccant to seal out the elements, ensuring long-term system accuracy and preventing premature sensor failure.

ENCL-WMT-EXSML-DEPTH

ENCL-WMT-EXSML-DEPTH

Small ABS Compensation Box. Provides a venting point for a depth sensor close to the monitoring location, whilst offering a connection for a longer cable back to monitoring equipment. Enclosure is IP67 rated to prevent water ingress but not air tight.

£92.85
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