dBi HART Transducer Series (4-20mA loop powered) Pulsar HART Transducers

The Pulsar dBi HART Transducer Series are a range of self-contained, intelligent non-contacting ultrasonic level measurement transducers which make use of HART communication protocols to make plant integration simple. Four range choices are available with either 3m, 6m, 10m or 15m range (10ft, 20ft, 33ft or 49ft).


Can be specified in various formats to suit the application, for example flanged, PTFE coated for corrosive applications, fitted with foam face or submergence shield and with threaded noses for easy installation.

  Another Article:


  • Self-contained
  • Two-wire
  • Solids or liquids applications
  • DATEM digital echo processing
  • Various mounting options
  • ATEX Ex mb Zone 1 standard. Option of ATEX Zone 0 I.S.
  • Use standard programming tools or Pulsar's dedicated PC system
  • FM/FMC approval


Transducer Specific

ModelDimensionsWeightMeasurement RangeFrequencyBeam AngleAccuracyResolution
dBi377D x 134Hmm1.0kg (2.2lb)0.125 - 3m (0.41-10ft)125kHz<10°2mm (0.08in)1mm (0.04in)
dBi686D x 121Hmm1.2kg (2.7lb)0.3 - 6m (0.98-20ft)75kHz<10°4mm (0.16in)2mm (0.08in)
dBi1086D x 121Hmm1.3kg (2.9lb)0.3 - 10m (0.98-33ft)50kHz<10°3mm (0.12in) up to 6m (20ft) range 6mm (0.24in) over 6m (20ft) range3mm (0.12in)
dBi1586D x 135Hmm1.4kg (3.1lb)0.5 - 15m (1.64-50ft)41kHz<8°5mm (0.2in) up to 10m (33ft) range 10mm (0.39in) over 10m (33ft) range5mm (0.2in)

All Transducers


Sensor body material:Sensor body material:
Cable lengths:Standard = 5m, 10m, 20m or 30m (16.4ft, 32.8ft, 65.6ft or 98.4ft). Optional: up to 150m (492ft) maximum (increments of 10m / 32.8ft only)
Mounting connection:BSP or 1” NPT


Enclosure protection:IP68 / NEMA 6P
Max. and min. temperature (electronics):-40°C to +80°C (-40°F to +176°F)


CE approval:Listed in the Certificate of Conformity within the manual
ATEX approval:Standard: Zones 1 & 2 - Ex II 2 G Ex mb IIC T4 Gb, Ex II 2 D Ex mb IIIC T130°C Db, Tamb= -40°C to +80°C Optional: Zone 0 - Ex II 1 G Ex ia IIC T4 Ga, Ex II 1 D Ex ia IIIC T130°C Da, Tamb= -40°C to +80°C


Input voltage range:10-28Vdc
Output:4-20mA output, resolution 1μa
Current consumption:3.8mA to 22mA
Boot time:From power-up to stable reading:
Cold boot = 9 seconds,
Warm boot (within 12hrs from last start-up) = 4 seconds
Communcations protocol:Hart 7

Transducer Options

PVDF yesyes 
Front Threaded / PVDFyesyesyes 
Submergence Shieldyesyesyesyes
Flanged DIN/ANSI yesyesyes
Foam Face  yesyes
Sanitary Flangeyesyesyes 
I.S. of all the aboveyesyesyesyes

Download Datasheet: dBi HART Transducer Series (4-20mA loop powered) Pulsar HART Transducers

Reference: pulsar-pm.com