Pulsar Measurement

Tank Automation

Pulsar dB Transducer ultrasonic level sensors

Versatile Measurement Range

The dB Transducer series offers reliable level and flow measurement from 3 m (9.8 ft) to 40 m (131.2 ft) for both liquid and solid applications.

Advanced DATEM Technology

Our unique Digital Adaptive Tracking of Echo Movement (DATEM) technology discriminates true echoes from background noise, ensuring accurate measurements even in challenging conditions like sewage wet wells or noisy silos.

High Power and Reliability

The powerful ultrasonic transducers provide exceptional echo monitoring, resulting in reliable level measurements in previously difficult applications, with a narrow effective beam angle of just 3 degrees.

Easy Installation and Maintenance

With a non-contacting design, the dB sensors can be installed without interrupting service. They require minimal maintenance and come with options for hazardous locations, including submergence shields for added protection.

Introducing the Pulsar “IMP”.

Nothing Short Of Impressive.

The IMP range of non-contacting level sensors from Pulsar Measurement are designed to be used wherever you need an accurate and reliable level indication. The unique digital echo process techniques featured in the IMP range of level sensors mean the units are perfect for slurries, liquids, or anywhere where you need a display giving you a level indication or analog output to interface with your existing site control system or to drive a display. 

The IMP level measurement units are suitable for water and wastewater applications, industrial level measurement, tank level measurement, stock control, and health and safety compliance. To find out more about the IMP range of level measurement sensors, contact us today.

General Specifications
Spec:Description:
Dimensions186 mm (H) x 133 mm (D) (7.3 in (H) x 5.2 in (D))
Cable Entry:2 off cable glands 4.5 mm to 10 mm (0.2 in to 0.4 in); Torque to 2 NM
Mounting:IMP3 – 3 m (9.8 ft) version: 1.5 in BSP/NPT
IMP 6 – 6 m (19.7 ft) version: 1.5 in BSP/NPT
IMP10 – 10 m (32.8 ft) version: 2 in BSP/NPT
Suits BSP & NPT, parallel and tapered
WeightNominal 1kg (2.2 lb)
Enclosure ProtectionIP67
Temperature (Process)-4 0°C to +65 °C (-40 °F to +149 °F )
Temperature (Ambient)-40 °C to +80 °C (-40 °F to +176 °F)
Input Voltage Range11-30 V, 3.5-22mA
Accuracy±0.25% or 6 mm (0.2 in) whichever is greater
Resolution±0.1% or 2 mm (0.1 in) whichever is greater
4-20mA OutputsResolution 5 μA; both active and passive outputs
Temperature CompensationVia internal temperature sensor 0.5 °C (± 32.9 °F) accuracy. Level and volume conversion are installed allowing linearisation for tank shapes.
PC InterfaceAll parameters can be accessed and changed through PC Suite software. Echo traces may be viewed on-screen.

Ultra 4

The Ultra 4 is a fully functional advanced controller for level, flow, volume, and pump control. MCERTS Class 1 certified, the Ultra 4 offers open channel flow measurement for stormwater overflows and event duration monitoring.

The multifunctional display offers the ability to view trend graphs on-screen and get a glance at how levels have changed over time. When combined with the dB3 with double sun shields, the Ultra 4 achieves MCERTS Class 1 certification, with 0.193% combined accuracy, meaning the system has undergone rigorous testing and has achieved a high standard in every single one. This means that wastewater processes across the world can achieve a common standard on their flow applications, providing real-time data on flow into storm tanks, influent flow, and event duration monitoring.

In addition to the Ultra 4’s open channel flow features, the unit offers sophisticated level control, includes built-in volume calculations based on standard tank shapes, and advanced pump control functions.

General Specifications
Spec:Description:
Weight:700g (1.5 lbs)
Dimensions:Wall Mount: 150 mm x 130 mm x 63.5 mm (5.9 in x 5.1 in x 2.5 in)
Fascia Mount: 160 mm x 180 mm x 63 mm (6.3 in x 7.07 in x 2.5 in)
Enclosure Material/Description:Polycarbonate, flame resistant to UL94-V0
Cable Entry Detail:3 x M20 glands
Transducer Cable Extensions:3-core Screened
IP Rating:IP67/NEMA 4X for wall mount IP64 for fascia mount
Operating Temperature (Electronics):-20 ºC to +45 ºC (-4 ºF to +113 ºF)
Accuracy:0.25% of the measured range or 6mm (whichever is greater) +/- 2 mm (0.079 in) for dBR16 mmWAVE RADAR
Resolution:0.1% of the measured range or 2 mm (0.079 in); whichever is greater
Analog Output:Isolated floating output (to 150 V) of 4-20mA or 0-20mA into 1 kΩ; user-programmable and adjustable
Volt Free Contacts, Number, and Rating:3 x SPCO isolated relays, rated at 5 A at 250 V AC and 1 Solid-state SPNO isolated relay, rated 30 V at 100 mA, suitable for pulse counter applications
Options
Option:Description:
Wall mount For permanent installations, Ultra 4 can be mounted to a nearby wall
Fascia mount For permanent installations, Ultra 4 can be fascia mounted for easy integration with panels 
Communications RS485 Modbus (opto-isolated)
Profibus and Data Logging Option – V1 (opto-isolated)
HART Communication
Adaptor Plates Adaptor plates available for easy replacements within panels
sludge finder 2

Sludge Blanket Level Control

The Sludge Finder 2 provides reliable and continuous sludge blanket level measurement.

The two-part system has been purposely designed for sludge blanket level measurement, operating ultrasonically through liquid.

The Sludge Finder 2 uses proven echo processing algorithms to identify the sludge interface level using state-of-the-art technology.

Designed to be maintenance-free. Sludge Finder’s Viper transducer is a single beam ultrasonic unit immersed just below the liquid surface.

Sludge Finder 2 is designed to be maintenance-free. Sludge Finder’s Viper transducer is a single beam ultrasonic unit immersed just below the liquid surface.

A wiper blade sweeps the transducer face, ensuring that it remains clean.

Additionally, the Sludge Finder 2 features 4-20mA outputs for each channel, with an optional RS485 connection using Modbus or Profibus communications.

Six control relays are included and are assignable to any channel. An optional Radio Telemetry System may be fitted with a 500 m (1,640 ft) line of sight range.

Why Measure Sludge Level?

Effective sludge blanket level measurement can help treatment plants generate their own electricity.

It ensures that pumps are used efficiently. Additionally, it prevents excess sludge from being pumped into local water sources.

It aids with compliance to health, safety, and environmental regulations.

Make sure that all of your equipment are performing to their maximum with Sludge Finder 2.

General Specifications
Spec:Description:
Weight1 kg (2.2 lbs)
Cable entry details10 cable entry knockouts, 5 x M20, and 1 x M16 underside. 4 x PG11 at rear
Operating Temperature (Electronics)-20 °C to +50 °C (-4 °F to +122 °F)
Analog output

2 x isolated (to 150 V floating) output of 4-20mA or 0-20mA into 1 kΩ (user-programmable and adjustable) 0.1% resolution

Digital outputHalf-duplex RS232
Display192 x 128 pixel illuminated graphical display showing a variety of screens including echo profile. Fully programmable display options, integral keypad with menu navigation keys
PC SoftwareSludge Finder PC within PC Software Suite – compatible with XP (service pack 3), Windows 7/8/10
Fuse2 A slow blow
Operating VoltageUniversal 100-240 V AC 50/60 Hz, 22-28 V DC
Power Consumption20 W maximum power (typically 11 W)
Options
Option:Description:
CommunicationsModbus
Profibus communications option V1
DX80 radio transmitter
CableVarious cable lengths available
MountingSludge Finder 2 Cabinet
Mounting Kits & Brackets available

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