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 | |
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Spec: | Description: |
Dimensions | 186 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 |
Weight | Nominal 1kg (2.2 lb) |
Enclosure Protection | IP67 |
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 Range | 11-30 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 Outputs | Resolution 5 μA; both active and passive outputs |
Temperature Compensation | Via internal temperature sensor 0.5 °C (± 32.9 °F) accuracy. Level and volume conversion are installed allowing linearisation for tank shapes. |
PC Interface | All 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 | |
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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 | |
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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 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 | |
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Spec: | Description: |
Weight | 1 kg (2.2 lbs) |
Cable entry details | 10 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 output | Half-duplex RS232 |
Display | 192 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 Software | Sludge Finder PC within PC Software Suite – compatible with XP (service pack 3), Windows 7/8/10 |
Fuse | 2 A slow blow |
Operating Voltage | Universal 100-240 V AC 50/60 Hz, 22-28 V DC |
Power Consumption | 20 W maximum power (typically 11 W) |
Options | |
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Option: | Description: |
Communications | Modbus Profibus communications option V1 DX80 radio transmitter |
Cable | Various cable lengths available |
Mounting | Sludge Finder 2 Cabinet Mounting Kits & Brackets available |
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