UltraTWIN Pulsar Ultrasonic Measurement

Flexibility is the UltraTWIN two-channel ultrasonic system. Each channel is user-configurable to operate independently either as a full-function open channel flow monitor, a pump control system, or as a level and volume monitoring unit for liquids or solids, calculating volumes and providing alarms. UltraTWIN is compatible with the full range of dB Transducers. UltraTWIN features six relays configurable to either channel.

Features :

Applications :

  • Level and Volume measurement
  • Pump control
  • Open channel flow measurement
  • Liquids and solids measurement
  • Food, pharmaceutical, chemical, power generation and many more industries

Specifications :

Physical :

Mounting option:

Standard Wall Mount:

Fascia Mount:

Sensor Body Dimensions

235 x 184 x 120 mm

(9.25 x 7.24 x 4.72 in)

200mm x 112mm (7.87 x 4.41 in) front x 108mm (4.25in) deep: 165mm x 105mm (6.5in x 4.13in) cutout


Nominal 1kg (2.2lbs)


Cable Entry Details:

10 cable entries. 1 x M16, 5 x M20 underside, 4 x PG11 at rear


Enclosure Material/Description:

Polycarbonate, flame resistant to UL 94-5V (wall), UL94-V0 (fascia)


Transducer cable:

Transducer cable: Twin Screened


Maximum Separation

Maximum Separation 1000m (3280ft)


Environmental :

IP Rating:



Max. and Min. Temperature (electronics):

-20C to +50C (-4F to +122F)


Flammable atmosphere approval:

Safe area: compatible with approved dB transducers


Approvals :

CE Approval:

See the CE Declaration of Conformity in the product manual


UL Listed. UL is Listed to Canadian safety standards.
Certificate Number: E257330 (wall and fascia mounts only)

Performance :


+0.25% of the measured range or 6mm whichever is greater


+0.1% of the measured range or 2mm whichever is greater


Depending upon the transducer, from 125mm to 40m (0.41-130ft).
50m on modified Ultra 3 and Ultra 5.
(0 to 2.425m (0 - 7.95ft) dBMACH3 for open channel flow)

Echo Processing:

Patented DATEM (Digital Active Tracking of Echo Movement)

Outputs/Inputs :

Analogue Output:

2x Isolated output 4-20mA or 0-20mA into 500
(user programmable and adjustable), 0.1% resolution

Digital Output:

Full duplex RS232 via RJ11 port


6 digits plus 12 character text, plus bar graph with direction indicators,
remote communicator identifier, and program/run/test mode indicators

Digital Inputs:

Wall = 4, Fascia = 7, normally open or normally closed 24VDC supply

Programming :

On-Board Programming:

Standard on wall and fascia mount units with integral keypad

PC Programming:

Via RS232 (RJ11 port)

Programming Security:

Via password (user selectable and adjustable)

Programmed Data Integrity:

Via non-volatile RAM, plus backup

Power Supply:

115V ac +5%/-10% 50/60Hz, 230V ac +5%/-10%, 18-30V dc

Volt-free contacts:

6 form C (SPDT) 5A, 240V ac

Download Datasheet: UltraTWIN Pulsar Ultrasonic Measurement

Reference : pulsar-pm.com