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Home Our Equipment Water Quality Monitors Particle Counters
Particle counters are known for their ability to detect when a filter is reaching the end of its life. ORAKEL Particle Counters are sophisticated instruments suitable for municipal and industrial water treatment applications including filter performance monitoring, protecting RO membranes from colloidal fouling and corrosion product monitoring.
How it works
The ORAKEL Particle Counter works by counting particles. Particles larger than 127µm are sized as >127µm particles, but up to 6 size ranges can be programmed and counted for particles ranging from 2 to 127µm in diameter. The number of particles counted in each of these ranges is reported as counts per milliliter, counts per 100 milliliters, or raw counts.
As particles in a water stream flow through a cell they break a laser beam. This break is measured by a detector opposite the laser beam and the number of breaks is equal to the number of particles. The size of the signal (created as the particle passes through the beam) is proportional to the size of the particle.
The ORAKEL particle counters connects to an ORAKEL control unit which can connect up to 16 sensors to one unit, enabling users to combine other measurements such as turbidity, chlorine and pH. Typical applications include:
Solid-state laser diode (780nm)Cell Material
NituffTM coated aluminium PEEK plastic (optional)
Sapphire Detection Range 2-750 microns
2-127 microns Flow Rate 75ml/min
Better than 10% at 10 micron (ASTM-F658)
20,000 cnts/ml Signal to Noise Ratio Better than 5: 1
Up to 3 user selectable and total counts
Value and Alarms at the same time, controller dependent
Sensor diagnostic, particle count limitLaser Diode Life
MTBF 75,000 hours@55°C
Light obscuration, Volumetric
TCP/IP, Modbus, RS232, RS485, 4-20mA, Profibus
100-250V AC, 50/60Hz 8-36V DC
Operating ambient temperature
Sample process temperature
The ORAKEL COD/TOC Sensor uses UV254 light as a surrogate measurement for detecting organics in water.
It is designed in modular form so that it can be integrated with other sensors, such as pH, turbidity and dissolved oxygen, to provide all the tools needed for either a stand-alone UV254 analyser or as part of an effluent discharge monitoring system.
The ORAKEL COD/TOC Sensor provides online continuous organics monitoring utilising a 254nm ultraviolet light source.
The ORAKEL System is ideal for all your water monitoring equipment needs, measuring both water flow and water quality at the same time. Created as a modular system, a wide range of water quality sensors can be added to measure various characteristics, such as pH, COD and suspended solids, for a truly bespoke and cost-effective solution.
The ORAKEL range of Conductivity meters also double as a Salinity meter and a TDS meter. The range measures conductivity in water from 0 to 2,000,000 µS/cm (range selectable). You can choose between a standard graphite sensor and a more sophisticated toroidal sensor, or stainless steel ‘special’ sensors for high temperature, high pressure conductivity measurement applications.
Optical luminescent devices which are extremely resistant to abrasion, extremely stable, and have greatly reduced maintenance and whole life costs.
The ORAKEL Dissolved Oxygen sensor has no chemicals or moving parts. It is stable and reliable making it excellent for process controls and is suitable for all Dissolved Ovygen applications.
Water can have a positive or negative Oxidation Reduction Potential (ORP) and it is measured in volts. ORP is a way to measure water’s ability to accept or release electrons during a chemical reaction. Understanding the ORP value helps determine the quality of the water and thereby helps operators decide what water treatment processes may be required. The more positive the ORP value, the greater the tendency the water has to oxidise (gain electrons from) organisms or other material in the water, thereby killing or destroying them.
The ORAKEL Suspended Solids senor has a large dynamic range, which eliminates the need for a “zero” and also eliminates the effect of background light.
For multiple measuring ranges, the suspended solids sensor can monitor turbidity and suspended solids from 2 NTU (1mg/l) to 8%* solids.