The MBS33-060G3013 pressure transmitter, as a key device in industrial automation control, directly affects production safety and efficiency through its accuracy. This article focuses on the calibration requirements of diffused silicon Hesmann pressure sensors and provides a detailed introduction to a 5-step calibration method, helping commercial evaluation personnel quickly master the key points of accuracy verification for models such as E913-033-B24R to ensure long-term stable operation of the equipment.

I. The Necessity of Calibrating Diffused Silicon Hesmann Pressure Sensors

In the field of flow control equipment, accuracy deviation of pressure transmitters may lead to system misjudgment or even safety accidents. Taking the petrochemical industry as an example, if models such as MBS33-060G3040 have an error of more than ±0.5%, it will directly affect the stability of the reactor pressure closed-loop control. According to the requirements of the ISO 9001 quality management system, key sensors must undergo mandatory calibration every 6 months, while the domestically produced general-purpose pressure transmitter MPM4120B, with its 0.25 class high accuracy and temperature drift characteristic of ≤±0.05%FS/℃, has become the preferred solution to replace imported products.

II. Detailed Explanation of the 5-Step Calibration Method

1. Pre-inspection Preparation

Before calibration, it is necessary to confirm that the supply voltage of the MBS33-060G3013 pressure transmitter is stable at 24VDC±5%, and check that the M20×1.5 threaded connection has no leakage. Compare the technical manuals of models such as DMK331-250-6001-1-5-100-H00-1-B-2-000 to ensure that the test environment temperature is within the 0-70℃ compensation range.

2. Zero Point Calibration

Connect the standard signal source through the aviation plug, and adjust the zero potentiometer under vacuum conditions so that the 4-20mA output signal is stable at 4.000mA±0.02mA. This step is particularly critical for wide-range models such as MBS33M-060G1705, as it can eliminate drift errors caused by long-term use.

3. Full-Scale Verification

Apply the rated pressure (for example, the 250MPa upper limit of MBS33-060G3060) and observe whether the output current reaches 20.000mA. If the deviation exceeds the 0.5 class accuracy requirement, fine adjustment must be made through the span potentiometer. It is worth noting that the MPM4120B model, featuring a compact integrated LCD display, can be adjusted directly on the meter head.

4. Linearity Test

Apply pressure in stages at 25%, 50%, and 75% of the range, and record the output values at each point. For high-quality diffused silicon sensors such as MBS33-060G3041, the nonlinearity error should be <±0.1%FS. If any abnormality is found, check whether the 316 stainless steel diaphragm in the media-contact part is damaged.

5. Temperature Compensation Calibration

Repeat the above tests in high-temperature (+85℃) and low-temperature (-20℃) environments to ensure that the temperature drift meets the standard of ≤±0.05%FS/℃. For models such as E913-033-B24R used in turbogenerator units, this step can significantly improve reliability under extreme working conditions.

III. Common Fault Handling Solutions

IV. Why Choose Our Calibration Services

As a national high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. has a CNAS-certified pressure calibration laboratory. The MPM4120B series pressure transmitters we provide use military-grade diffused silicon chips and, combined with a wide-temperature storage capability of -40～+90℃, can perfectly replace imported models such as MBS33-060G3011. In response to the cost concerns of commercial evaluation personnel, we provide total solutions including matching instruments, reducing life-cycle costs by more than 30%.

V. Selected Technical Q&A

Q: How can it be determined whether the MBS33-060G3013 needs recalibration?
A: It is recommended to calibrate immediately when abnormal system pressure indication values appear, when the annual maintenance cycle is reached, or when the equipment has undergone drastic temperature changes. For long-term operating equipment such as MBS33M-060G1234, calibration is required when the stability index exceeds ±0.2%FS/year.

Q: Which is more suitable for hydraulic control, diffused silicon or ceramic piezoresistive sensors?
A: Diffused silicon sensors have better stability within the medium temperature range of -30～+85℃, and are especially suitable for working conditions involving frequent impacts in hydraulic systems. Our test data show that under the same pressure cycle test, the service life of diffused silicon products is 2-3 times longer than that of ceramic piezoresistive products.