The MC300 is a pressure controller that delivers high accuracy, fast response, and long‑term stability.
By incorporating Yokogawa’s proprietary silicon resonant sensor and a control system using needle valves, it achieves an output relative accuracy of 0.04%.
In addition to excellent linearity and repeatability, it provides smooth pressure control with minimal overshoot up to the target setpoint.
Blood pressure monitors require accurate pressure measurement and control up to 40 kPa (300 mmHg) to ensure compliance with medical standards. With a pressure range up to 200 kPa, the MC300 provides ample margin while delivering the accuracy and resolution required to support both development and production testing of blood pressure monitors and medical devices with integrated blood pressure measurement functions. The MC300 is also capable of generating negative pressure without the use of a vacuum pump, allowing functional testing under negative pressure conditions specified by applicable standards using a single instrument. For applications requiring enhanced measurement confidence, the MT300 Digital Manometer (Gauge Pressure model) can be used alongside the MC300 to monitor pressure directly at the device under test.
Leak (airtightness) testing is commonly used to evaluate the waterproof and dustproof performance of enclosures using the pressure change method. In this approach, the test object is pressurized to a specified starting pressure and, after a defined stabilization period, the pressure change is measured to confirm compliance with allowable leakage limits.
Accurate leak measurement depends on maintaining a stable and repeatable starting pressure. The MC300 delivers smooth, highly repeatable pressurization to the target pressure, reducing measurement variation and ensuring consistent, reliable test results. This makes it well suited for both development testing and high-throughput inspections, including mass production and shipping verification. MT300 Digital Manometer monitoring also available for additional confidence.
During development and testing of water level meters creating actual water levels, for example, of 20 meters is challenging. Instead, a pressure controller applies equivalent air pressure to simulate an underwater environment.
The MC300 provides rapid pressurization to target pressure with minimal overshoot and extremely low hysteresis, delivering stable, high-quality pressure control for submersible water level meter development and verification. It also ensures precise control during both pressurization and depressurization, helping to prevent overpressure and hysteresis effects.
Pressure transmitters used in industrial plants require regular calibration to maintain measurement accuracy and process integrity.
The MC300 Pressure Controller provides precise, stable pressure generation required for accurate transmitter calibration. Its auto-step function enables automated multi-point pressure increase and decrease testing with minimal hysteresis and high accuracy, improving repeatability and reducing operator workload.
When used together with the MT300 Digital Manometer, the MC300 enables highly accurate comparison calibration with full automation. In addition, the MT300 can be equipped with a 24 V power supply and voltage/current measurement functions, eliminating the need for external power supplies or multimeters and enabling a more compact, efficient calibration setup.
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