Media control in electrical impedance counting

For enhanced reliability

Your benefits

Compact system solution enables various functions tob e combined into a single component
Chemical resistance and maximum quality for low maintenance intervals
High leak-tightness for maximum efficiency in regulating the medium

Electrical impedance measurement is an established method for detecting the number of blood cells in a sample. The reliability of the measurement results is greatly dependent on the media control system, which is responsible for regulating the supply and discharge of the electrolyte solution or sample. For this purpose, valves and pumps that work quickly and precisely are used.

Requirements to impedance counting

Impedance measurement enables the precise number and size of blood cells to be determined in a short time, which provides an indication of the patient’s state of health. This is exactly the reason why reliable measurement is so important.

Peace of mind in achieving precise results – Procedure

The electrolyte solution is pumped via a valve into the impedance measurement device, into which the blood sample is introduced. Both are then passed through a cavity, small enough to permit only one cell to pass through at a time. Using an electrical field and based on the resistance between the two measuring electrodes, the blood cells can be counted and typified, enabling not only the number of the cells but also their size to be determined. We are pleased to support you with our extensive application expertise when implementing a suitable system.

Products and Systems for your application

2/2 or 3/2-way Whisper Valve with media separation

Type 6724

Highest chemical resistance
Compact design with 8.9 mm installation width
DN 0.8 mm (vacuum up to 5 bar) and 1.2 mm (vacuum up to 3 bar)
Very fast, almost silent switching with < 20 dB (A) and very low power consumption
High back-pressure tightness, excellent cleanability and 100% duty cycle

2/2 and 3/2 way Bürkert TwinPower rocker solenoid valve with separating diaphragm

Type 6624

For highest chemical resistance requirements
Ultra compact design due to Bürkert Twinpower actuator with 10.3 mm width
DN 0.8 (5 bar) and DN 1.6 (2 bar)
Integrated hit and hold electronic
High back pressure tightness with excellent cleanability

2/2 or 3/2-way rocker solenoid valve with separating diaphragm

Type 0127

For the highest chemical resistance requirements
Compact design with 16 mm width and a flow coefficient of up to 0.058
Proven reliability since 1993
Flexible design for customised solutions
High back-pressure tightness, excellent cleanability and 100% duty cycle

2/2-way and 3/2-way Bürkert TwinPower rocker solenoid valve with separating diaphragm

Type 6626

For highest chemical resistance requirements
Ultra compact design due to Bürkert TwinPower actuator with 16 mm width/station
DN 2.0 (3 bar) and DN 3.0 (2 bar)
Integrated hit-and-hold electronics assembly
High back-pressure tightness with excellent cleanability

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Media control in electrical impedance counting

For enhanced reliability

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