RADAR Level Transmitters

Babbitt ABM Series Radar level transmitters allow simple and reliable non-contact level measurement of fluids in a metal tank. The microprocessor-controlled electronics transmit a 6.3 GHz electromagnetic pulse down to the fluid's surface which is then reflected back to the antenna. The "round trip" time of flight is measured then calculated to determine the fluid level inside the container. Pulsed Radar units can "see through" environments such as foams, fumes and vapors that would normally interfere with ultrasonic type sensors.

Babbitt ABM Series Radar units have a proprietary software that senses and analyzes the amplitude and shape of the received echoes. This enables the units automatic gain control to track the process level as well as eliminate false echoes from unwanted obstructions such as standpipes or tank walls. The dielectric constant of a material is important to the proper operation of Radar units. Each unit has the ability to work with materials that have a dielectric constant greater than 2. All Babbitt ABM Series Radars offer simple, single push-button calibration used to set the zero and span. Calibration can either be done in the vessel, on the bench or with the factory provided software. The calibration software enables diagnostics, data logging and access to special calibration features.

Babbitt offers Radar non-contact, continuous level transmitters in measuring ranges up to 240 feet with features to meet a variety of industries. Units are available in 4 Wire (115VAC), 3 Wire (24VDC) and 2 Wire Loop Power with HART 7 communication. Digital displays with optional set points for self-contained alarm and control functions is available from the factory. Explosion Proof (24VDC and 2 Wire Only), high temperature, high pressure and sanitary models with tri-clamp connections are also available. (See ordering instructions below) Proper installation and mounting is critical for consistent and reliable operations. (See Installation and Mounting PDF below) For general questions regarding Radar units or unsure of whether a Radar is right for your application, please see our FAQ page.

Product Features:

  • Simple push button calibration
  • 4-20mA or 20-4mA output
  • Not affected by vapors or fumes
  • Non-volatile memory-batteries not required
  • PLC compatible (Modbus RTU)
  • Field, bench or factory software calibration
  • Optional communication – RS232, RS485 or HART

Industries:

  • Water/Wastewater
  • Food/Beverage
  • Petrochemical/Chemical
  • Oil and Gas
  • Paint and Pigment
  • Bulk Liquid Storage
  • Marine
  • Flammable/Corrosive Liquid Storage

Applications:

  • Liquids with foam, gases (CO2,methane) and other fumes
  • Highly corrosive liquids such as acids and solvents
  • High temperature applications up to 350F such as asphalt
  • Slurries
  • Acids, Caustics and Solvents
  • Vacuum applications
  • Diesel crude oil
  • Sanitary applications
  • Oil-water interface monitoring and detection

Specifications:

Electrical

Power: 115VAC/60Hz, 230VAC/50Hz, 12-30VDC or 2 Wire Loop Power
Output: 4/20mA or 20/4mA, 6.1uA resolution 750 ohms, isolated on AC supply
Fuse: 0.125A/250V type 2AG

Mechanical

Process Entry: 2” NPT
Conduit Entry: ½”NPT
Antenna: (Standard) Polypropylene; (Optional) Teflon
Enclosure: (Standard) Aluminum; (Optional) Stainless Steel
Ingress Protection: NEMA 6 (IP68)

Environmental

Temperature:
-40 F to 140 F (Electronics)
-40 F to 190 F (PP Antenna)
-40 F to 250 F (Teflon Ant.)
-40 F to 350 F (Teflon Ant. And Teflon De-Coupler)

Pressure: (Standard) 75 PSI Max. (Optional) 1000 PSI – 70 bar – without de-coupler

Approvals:
(Standard)
FM(USA)
FM3810 (2005) Electrical Electronic Test, Measuring and Process Control Equipment
ANSI/NEMA 250 (1991) : Enclosures for Electrical Equipment
FM(CAN.)
CSA C22.2 No. 1010.1 (2004) Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use
- Part 1: General Requirements
CSA C22.2 No. 94 (2011) Special Purpose Enclosures

(Explosion Proof)
FM & CSA for Can. & US Explosion Proof Class I, Div.1, Groups B, C, D:
Dust-Ignition Proof Enclosure for Class II/III Div. 1, Groups E, F, G
FCC Part 15 – Low communication Device


Operational

Range: 17 to 240 feet -Depends on model
Accuracy: +/- 0.25% of maximum target range in air
Frequency: 6.3 GHz (other frequencies available upon request)
Transmitter Power: 50uW average
Lost echo hold time: 30 seconds/output 22mA

Specifications subject to change without notice


Radar with Sanitary Connection


Radar with Stainless Steel Housing and Teflon Antenna


Radar with Teflon NPT and Antenna

Pulsed RADAR Level Transmitter

radar level transmitter