The MT300 delivers high speed, high resolution, and synchronous measurements for high measurement accuracy and long term stability.
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Yokogawa Digital Manometer MT300
The MT300 delivers high speed, high resolution, and synchronous measurements for high measurement accuracy and long term stability. It offers various functions for field device calibration, including 24 VDC transmitter output, built-in communication resistance, and Li-ion battery operation. The D/A output makes it easy to output data to a recorder or other instrument, and external I/O terminals allow users to output control signals.
Engineered with Yokogawa's silicon-based resonant sensor, the MT300 achieves:
Choose from a variety of model based on your application needs.
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Gauge pressure model |
Absolute pressure model |
Differential pressure model |
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| 6 ranges | 3 ranges | 4 ranges | |||||
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*1 Shield gauge pressure model
Absolute accuracy of pressure measurement:0.01％
Accuracy guarantee period: 12 months
Yokogawa’s proprietary silicon based resonant sensor technology achieves a high measurement accuracy of 0.01% as relative accuracy. In addition, with long-term stability performance backed by measurement data accumulated over many years, we guarantee the measurement accuracy of 12 months.
A color dot matrix LCD displays measurement data and analysis with high resolution and high visibility.
By using a high resolution display, pressure measurements can be more accurately displayed and visualized. In addition, the increased resolution, especially in calibration environments, reduces the uncertainty of the entire calibration process.
Rapid pressure changes and transient responses requires high speed and reliable measurements. Depending on the application, you can choose your measurement speeds from three different modes, normal, medium or high speed.
Using the synchronization features, you can collect data and display measurements from multiple units. Measurements can be captured and correlated at high speed with high accuracy and confidence.
Application:
In the performance testing of vacuum cleaners, the suctionforce is calculated from the amount of suction-air in the pressure equalizing container and the degree of vacuum. The amount of intake-air can be obtained by measuring the differential pressure via a pitot tube, and the degree of vacuum can be obtained by measuring the absolute pressure. With the /F1 option, the dynamic characteristics can be captured at high speed, with accurate results, by synchronously measuring these two values from two MT300s.
The Leak-test feature can be used to measure pressure change or leak rate within the measurement period. It can be used to check the tightness or integrity of a pressure measurement system.
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Start: Pressure value and time when started Stop: Pressure value and time when stopped Time: Measurement time Delta: Difference of pressure value between started and stopped Rate: Deffence of pressure value per minute |
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The scaling function can be used to assign customer specific coefficients to the measured values. Depending on the application, you can display your own conversion value. Scaling coefficient A and offset B are determined according to the following equation. Set the scale values for the upper and lower span limits.
※ If you change the unit, set scaling coefficient A and offset B again.
You can apply statistical processing to the data acquired. Find and display the maximum value, minimum value, average value, and standard deviation for the measured data. When error data is detected, the number of error data within the measurement range can be recorded and displayed.
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| Max：Maximum value | AVG：Average value | ERR：Number of error data |
| Min：Minimum value | σ：Standard deviation | |
The Digital-to-Analog (D/A) option, makes it easy to output measured pressure values to an external terminal going to a measurement system or a recorder. The output update interval can be set to 250 μs in combination with the /F1 option (in medium-speed/high-speed modes).
Example of the waveform differences in measurement modes
Using external I/O terminals, you can output control signals, based on set upper and lower limits and judgement criteria’s on measured values. These features allow automation of production and/or inspection lines for pressure-related products.
Communication Interfaces such as GPIB, USB (type-B), and ETHERNET are available as standard features. Communication commands are compatible*1, *2 with existing models*3, making it easy to expand or update your existing measurement system.
*1: Some command cannot be used.
*2: Compatible commands cannot be used when -G07, -G08, -A05, -A06 are selected.
*3: MT210/MT210F/MT220
Calibration involves inputting the same pressure level to both a calibrator and a transmitter and comparing the transmitter output with a value measured by the calibrator. The MT300 come with the functions you need for such calibration or maintenance work in the field.
Above functions can be available when /DM is selected.
Above function can be available when /EB is selected or add them as accessory after ordered.
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Yokogawa’s proprietary and self-developed silicon based resonant sensor enables high accuracy, high resolution, and high stability pressure measurement system.
Yokogawa’s proprietary silicon resonant sensor has excellent characteristics that satisfy the conditions required for “accuracy measurement”, such as stability, reproducibility, sensitivity, and temperature characteristics.
High sensitivity and resolution and superior long term stability
The vibrators are in a vacuum. This reduces the dispersion of vibration energy. Combined with the superior flexibility of silicon single crystal, this makes it possible to obtain a high Quality factor.
Extremely low temperature dependency
Two vibrators are used, and pressure is derived from the difference between the two unique oscillation counts. With this operating structure, it is possible to cancel out external environment influences such as ambient temperature. In addition, the vibrators are in a vacuum, so they are not affected by humidity.
A vibrator, formed using semiconductor process technology on a silicon wafer, is driven by a permanent magnet. When pressure is applied to the silicon diaphragm, the vibrator is distorted, causing the resonant frequency to change.
International Comparison
The Yokogawa’s pressure sensor and the MT series are adopted as a Transfer Standard for many CC-level and the regional-level (for example APMP) international comparisons of pressure standards based on the enhanced performance of digital pressure gauges and the evaluation result of long term stability.
* Transfer Standard:
A standard used as a transfer equipment to compare standards.
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Reduced energy and emission of CO2 about 19% compared to the previous model. Results of Life Cycle Assessment |
Battery cover for MT300
BNC-Banana-jack (female) adapter. Use for circuits having voltage levels no greater than 42 V.
Three pockets are provided for storing accessories and the user
Malaysia
