Liquid & Solids Level Sensors: Ultrasonic, Radar

  • Pulsar Ultra
  • Pulsar IMP
  • OptiFlex
  • Radar for Solids

Pulsar Ultra

Ultra 3 and Ultra 5 ultrasonic level sensors photoUltra 3 and Ultra 5 combine several world-class, full function, non-contacting ultrasonic level measurement instruments into one. Making use of the latest microprocessor and clever software development, Pulsar engineers have created devices that can be simply configured by the user to become fully functioned control units. Through the use of ULTRA WIZARD, an integrated high level software configuration tool, you select your application and the Ultra unit configures itself. For example, if flow is chosen, you get the most accurate open channel flow meter available with all the PMD calculations preconfigured. Market leading pump control features are built into both Ultra 3 and 5, and an extensive set of volume calculations and linearization features are available for tank or silo level measurement.

Pulsar IMP

Pulsar IMP level sensor photoIMP 80 features:

  • 2-Wire (Loop Powered) and 3-Wire configurable
  • Standard 4-20 mA, 0-5VAC, & 0-10 VAC outputs
  • 2 Alarm Relays, 1A @ 30V (3-wire mode only)
  • Power Supply 11-30 VDC, backlit display adjustable

IMP 81 features:

  • Intrinsically Safe for Explosive Environments
  • ATEX EExia IIC T6 and IECEx Certified
  • 2-wire (Loop Powered)
  • 4-key user interface
  • Automatic Temperature Compensated
  • Automatic Temperature Compensated
  • IMP PC Software for echo analysis and PC programming
  • Measurement Ranges: 0.5 - 10 ft (0.15-3m) 1 - 20 ft (0.3-6m) 1 - 33 ft (0.3-10m)


OPTIFLEX 1300C radar level meter photoOPTIFLEX 1300 C
In contrast to earlier guided radar devices, the new OPTIFLEX with its more advanced design solutions has higher signal dynamics. Sharper pulses measure thinner interfaces.

OPTIFLEX's exceptional timebase stability means it has better repeatability than older devices: this makes it an outstandingly reliable meter.

  • Simple installation
  • Wizard driven
  • PACTware-ready
  • Easy to use
  • Service and maintenance-free

No interface is too thin
OPTIFLEX can detect and measure interfaces not much thicker than a 50 mm / 2" film of oil on water in a large tank.

Stable and reliable measurement
Despite disturbances such as strongly agitated surfaces, foam, coating of the probe or fine dust in the tank, OPTIFLEX will continue to measure where competitors' devices capitulate.

OPTIFLEX measures any product...
Most 2-wire TDR devices measure down to a dielectric of 1.5. As a result, many organic compounds are not measured properly. OPTIFLEX measures down to 1.4 (and even 1.1 using its first-rate tank-bottom following mode).

... in any application
5 different probes means there's not an application that we can't handle.

OPTIFLEX 7300C radar level sensor photoOPTIWAVE 7300 C
In contrast to earlier radar devices, the new OPTIWAVE is able to operate over a larger bandwidth. This ensures a sharper resolution and higher accuracy. The higher signal dynamics of OPTIWAVE allow the detection of even the smallest level changes.

  • Simple installation
  • Wizard driven
  • PACTware-ready
  • Easy to use
  • Service and Maintenance-free

Objects in tank
Agitators, struts, inlets, ladders and similar objects have less effect on signal reduction. The high-quality signal is easier to evaluate and the results are more accurate and repeatable.

The improved signal quality permits much clearer location of the product's true surface.

Agitated surface
Better signal production and improved PCB board characteristics allow the OPTIWAVE to determine the true level in the tank despite the agitated surface..

Krohne 6300C Radar for Solids Applications

OPTIWAVE 6300 Non-contact Radar (FMCW) Level Meter for Solids photoThis device is a non-contact Radar (FMCW) Level Meter for distance, level and volume measurement of powders, granulates and other solids. It provides a more stable measurement than pulse radar and is well suited to dusty process conditions. The device can operate at very low and very high process temperatures as long as the process connection temperature limits are observed.


  • ±10 mm / 0.4 standard accuracy
  • PP or PTFE Drop antenna: its shape prevents product build-up in dusty applications
  • Operates up to a flange temperature of 200°C / 390°F and 40 bar / 580 psig
  • Measuring range up to 80 m / 260 ft
  • Antenna can be extended to suit any nozzle length
  • PACTware and DTMs included as standard
  • Optional second current output
  • Directly-accessible graphic touchscreen/wizard (option)
  • An installation wizard specifically for solids that permits the instrument to measure uneven surfaces accurately.


  • Minerals & Mining
  • Chemical
  • Food
  • Iron, Steel & Metals
  • Pulp & Paper


  • Storage
  • Silos
  • Hoppers
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