Nemesis

High power, high accuracy RADAR level measurement

Nemesis Radar

Nemesis is a high power, high performance Frequency Modulated Continuous Wave (FMCW) RADAR for level measurement using sophisticated signal processing techniques.

Nemesis provides accurate, reliable measurement over long measurement ranges (up to 64m/210ft). Maintenance is also minimised as Nemesis is a non-contacting radar transmitter with no moving parts.

Nemesis excels in challenging applications, including those in dirty, coating, crystallising or corrosive environments. Nemesis is dust, heat and steam resistant, and performs well in changing temperatures, all conditions that can cause problems for other radar systems.

Nemesis Radar Options

Choice of three configurations all offering a 64m (210ft) measurement range:

  • Reflector - total beam angle of 6.5º, ideal for long distance, low dielectic coefficient (Dk) or steep angles of repose.
  • Horn - general purpose transducer with 22dB gain and a total of 12º beam angle. Also perfect for higher temperature use.
  • Rod - designed specifically for liquid and slurry level measurement, easy to install and gives superb flat surface results. Total beam angle 20º.

Nemesis can be used with Pulsar's Level Star controller to expand capabilities to a wide range of functions including relays for alarm or control, data logging and volume measurement.

Nemesis Radar sales dataNemesis Radar manualNemesis Radar case studies

Full listing of Pulsar user manuals.

Applications:

  • Suitable for solids, liquids, and slurries in reactors, with rapid level changes and challenging process conditions
  • Foamy surfaces
  • Atmospheres other than air, or reduced pressure
  • Excels in challenging applications, including those in dirty, coating, crystallising or corrosive environments
  • Dust, heat and steam resistant
SENSOR:
Sensor weight: 1.8kg (4lbs)
Sensor body dimensions: 110mm (0.36ft) diameter x 296mm (0.97ft) long
Sensory body material: Stainless steel (grade 304) and Aluminium. Nickel-graphite Fluoro-silicone
Sensor ambient temperature: -40ºC to +70ºC (-40ºF to +158ºF)
Environmental protection: IP65
Cable entry: Cable gland
Maximum cable separation: 85m (280ft) for standard cables (Four core 16/02, 0.5mm2, screened). Custom cable options allow separation to 170m (560ft), contact us for specifications.
PHYSICAL: PARABOLIC REFLECTOR (OPTION AER):
Parabolic reflector dimensions: 360mm (1.18ft) diameter x 130mm (0.43ft) long
Parabolic reflector weight: 1.6kg (3.53lbs)
Parabolic reflector materials: Polypropylene, Aluminium 
Parabolic reflector temperature: -40ºC to +100ºC (-40ºF to +212ºF)
Parabolic reflector characteristics: Gain: 27dB, effective beam angle <3º
PHYSICAL: HORN (OPTION AEH):
Horn dimensions: 150mm (0.49ft) diameter x 240mm (0.79ft) long
Horn weight: 0.8kg (1.76lbs)
Horn materials: Stainless steel (grade 316), PTFE 
Horn temperature: -40ºC to +200ºC (-40ºF to +392ºF)
Horn characteristics: Gain: 22dB, effective beam angle <6º
PHYSICAL: POLYROD (OPTION AEP):
Horn dimensions: 55mm (0.18ft) diameter x 380mm (1.25ft) long
Horn weight: 0.4kg (0.88lbs)
Horn materials: Aluminium, PTFE
Horn temperature: -40ºC to +200ºC (-40ºF to +392ºF)
Horn characteristics: Gain: 19dB, effective beam angle <10º
PERFORMANCE:
Accuracy: For range: to 16m, accuracy is ±2mm; to 32m, ±4mm; to 64m, ±6mm
Resolution: 0.03% of the measured range or ±2mm, whichever is the greater
Range: Maximum: 64m (210ft), minimum: 0.45m (1.48ft)
Operating frequency: 8.9 - 10.1GHz (X-Band)
Modulation technique: FMCW (Frequency Modulated Continuous Wave)
Output power: 1mW (milliwatt) at aerial port
APPLICATION MATERIAL CHARACTERISTICS:
States and phases: Liquids, sludges, powders and solid materials
Material velocity: Static, vibrating and moving
Dielectric constant: 1.5 and above
Temperature: Any, within individual radar assembly limits
OUTPUTS:
Analogue output: 4-20mA, isolated (to 150V floating), into 1k?. Source or sink
RS232: ASCII, half duplex RS232
RS485 Modbus: Modbus ASCII, RTU
RS485 Profibus: Profibus DPV0 and DPV1, EN 50170
HART: pending
PROGRAMMING:
PC Programming: Via RS232 or RS485 Modbus
Programming security: Via passcode
Programmed data integrity: Non-volatile memory
PC set-up and monitoring software: Pulsar Nemesis PC Software
STANDARDS AND APPROVALS:
Tank level probe Radar: EN 302372
EMC and radio regulations: EN 61326-1, EN 61010 series, FCC CFR47 (parts 15 &18), IC RSS-210
Enclosure: EN 60529, IP65
Electrical safety: EN 60950