Bronkhorst has introduced a compact, portable liquid mass flow dosing system, complete with Coriolis or thermal flowmeter, close-coupled gear pump, operation module and power supply, integrated into a robust 19in housing with sturdy carry handle.
The company says the system is suitable for pharmaceutical and medical applications, r&d laboratories and universities. Extremely accurate fluid dosage is assured by the application of mass flow measuring techniques, regardless of whether the recipe is mass or volumetric based.
The system covers a range of flow control and pressures, from low flow rates measured in milligrams up to liquid flows of 30kg/hr.
The gear pump is directly controlled by the onboard PID function of the flowmeter, ensuring fast real-time flow pattern changes and a "plug and play" start-up procedure.
The system provides continuous, true mass flow dosage and the use of the Coriolis principle of operation means there is no need to correct for variations in fluid temperature, pressure, viscosity or density to determine mass flow, while the throughput of fluid can be compensated for entrapped gas or density changes.
There is also no need to pressurise the liquid source, a benefit for potentially hazardous materials, and this can additionally prevent gas bubbles forming. The system's integrated pump is protected from running dry with an auto shut-off function.
The integrated display provides readings of measured values, either direct or percentage, setpoint and totalised flow, with optional batch control and alarm functions. The desired flow can be set either through the onboard controls, by analogue input or via digital communication using standard bus protocols. A pressure controller can be added to monitor or limit outlet pressure, and special versions are available for aggressive or corrosive fluids. Standard pipe connections are euro¦"ºin and ¼in D compression type, with others available on request.
Bronkhorst
T +44 1223 833222