Pulsar Ultra 4 Ultrasonic Level Control and Flow Measurement

Pulsar Non-contacting Ultrasonic Level Control and Flow Measurement Ultra 4 offers the sophistication and advanced features of the rest of the Ultra range in a compact, cost effective package and useful new features that make it even easier to set up and fine-tune. Offering as the name suggests, four alarm or control relays (3 X SPCO isolated and 1 x SPNO solid state) and a multi-functional display while loosing none of the easy set up and configuration that has made the Ultra range the natural choice for non-contacting measurement world-wide.

Like the rest of Pulsar’s ‘transducer plus controller’ ranges, Ultra 4 is compatiable with both dB ultrasonic and dBR radar transducers. Ultra 4 can be wither wall or fasica mounted and includes HART, Profibus and Modbus digital communications options and the convenience of on-board micro SD card slot for extended data logging.

Like the rest of the Ultra range, Ultra 4 also offers built in volume calculations based on standard tank shapes as well as advanced pump control and open channel flow measurement functions.

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Mounting option: Standard Wall Mount: Fascia Mount:
Controller body dimensions: 150 x 130 x 63.5mm (5.9 x 5.1 x 2.5”) 160 x 180 x 63mm (6.3 x 7.07 x 2.5”)
Weight: Nominal 700g Nominal 700g
Enclosure Material/Description: 10 cable entries. 1 x M16, 5 x M20 underside, 4 x PG11 at rear Polycarbonate, flame resistant to UL94-V0
Cable Entry Detail: 3 x M20 glands
Transducer Cable Extensions: 3-core Screened
Maximum Separation: 1000m, 500m for dBR16 and dBR8


IP Rating: IP67/NEMA 4X
Max. and Min. Temperature (electronics): -20 ºC to +45 ºC (-4 ºF to +113 ºF)
Flammable atmosphere approval: Safe area: compatible with approved dB transducers
UV Rating: UL746C F1
CE Approval: See EU Declaration of Conformity
UL Approval: UL61010-1 pending


Accuracy: 0.25% of the measured range or 6mm (whichever is greater) +/- 2mm for dBR16 mmWAVE RADAR
Resolution: 0.1% of the measured range or 2mm (whichever is greater)
Max Range: Depending upon 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)
Min Range: Dependent on application and transducer (maximum 40m dB40)
Echo Processing: Dependent on application and transducer (minimum zero dBMACH 3)
Rate Response: Fully Adjustable

Echo Processing

Description: DATEM (Digital Adaptive Tracking of Echo Movement)
Technologies: Ultrasonic and FMCW RADAR


Analogue Output: Isolated (floating output (to 150V) of 4-20 mA or 0-20 mA into 1KΩ (user programmable and adjustable)
Digital Output: Half Duplex RS232
Volt Free Contacts, Number and Rating : 3 x SPCO isolated relays, rated at 5A at 250V AC and 1 Solid state SPNO isolated relay, rated 30V at 100mA, suitable for pulse counter applications
Display: Monochrome graphical dot-matrix, 160 x 240 pixels. Fully programmable display options with integral keypad with menu navigation keys. Program/run/test mode indicators


On-Board Programming: Via Integral Keypad
PC Programming: Via Integral RJ11 port on unit, or via SD Card slot
Programming Security: Via passcode (user selectable and adjustable)
Promgrammed storage: Via non-volatile memory
Data Logging and Removable Storage: Via Micro SD card slot or internal 10-day totaliser logs (flow only)
SD Card Memory (included): 8GB


Power Supply: 100 to 240V AC 50/60 Hz. DC 10-28 V
Power Consumption: AC = 20VA MAX, DC = 10W max
Fuses, mains: 1A ‘T’ 20mm ceramic 1500A breaking
Fuses, transducer: 100mA barrier type, 4000A breaking

Communications (optional)

Modbus RTU/ASCII: Isolated RS485
Profibus DPV1: Isolated RS485
HART 7: Isolated 4-20mA
DNP3/WITS: Gateway interface (pending)

Download Datasheet: Ultra 4 Pulsar Non-contacting Ultrasonic Level Control and Flow Measurement

Reference : pulsar-pm.com


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