Digital Level Indicator

Guard Level® DLI Digital Level Indicator

Guard Level® Digital Level Indicator (DLI)

Features & Benefits

The DLI gauge is a 100% digital solution for tanks with no top or bottom access (it mounts on the sides). It replaces unreliable glass tube methods.

A single DLI gauge can indicate for an entire tank, and can span up to 20 ft. Marine environment construction with housing made of extruded aluminum with stainless steel caps. It eliminates potential leaks from glass tubes.

The DLI uses a red LED for exact fluid level indication. Ultra-high reliability, low maintenance, and calibrated for life. The DLI gives "at a glance" accurate tank levels.

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Detailed Product Information

Main Specifications

Measurment Media
  • 1) All liquids with S.G. from 0.6 - 1.2 (density offset available through HART configuration)
  • 2) Suitable for all grades of diesel/hydraulic and cylinder oil as well as non-corrosive liquids compatible with aluminum
Power Supply 22-30 VDC, nominal 24 (loop powered)
Power consumption @ 24VDC instrument consumes 96mW @ 4mA and 480mW @ 20mA
Output Signal
  • 4-20mA + HART (unit is not independently HART certified)
Measuring Range Level 4” (101.6mm, minimum) to 240” (6096mm, 20’, 6.096m) in 4” (101.6mm) to 16” (406.4mm) increments (15 x 16)
Main body material (bridle bypass tube) 6063 T6 aluminum extrusion with AISI 304 stainless steel and caps, double Viton o-ring seal and Viton gasket
Lens material Extruded polycarbonate. O-ring sealed against aluminum extrusion
Measuring Scale Laser engraved white on blue
Mounting hardware Tank wall support bracket AISI 304 SS supplied as necessary
Float Nitrophyl, unsinkable closed cell with rare earth magnet
Temperature Measurement liquid -67° TO +257°F (-55°C to +125°C)
Electrical Safety Unit is not certified intrinsically safe or explosion proof and is not suitable for fitting in areas classified “HAZARDOUS”
Process connections ½” (38.1mm) NPT via approved hose or tube. ICB recommends isolation valves for service without having to empty tank
Cable Entry Standard bronze cable gland
Electrical junction box Cast aluminum powder coated NEMA 4 (IP67)
Options Metric, hose kit, independent level alarms

General Arrangement

GUARD Level® DLI Digital Level Indicator GA

GUARD Level® DLI Digital Level Indicator

System Details

Level Gauging
  • Tank Barges
  • Ocean Tank Barges
  • Tank Ships
  • Offshore Vessels
  • Tug Boats


Our world class parts department is available 24 hours a day, 7 days a week. Contact one of our professional sales or service team members by phone or email for prompt, courteous service.


Ian-Conrad Bergan prides itself on service after the sale. It is our mission to ensure our customers experience full use of our quality equipment after the sale, installation, and life of the equipment.


We warranty all of our equipment at Ian-Conrad Bergan. While the standard warranty is 12 months from delivery of equipment, we can negotiate a specific warranty at the time of sale.