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YK-120B Ultra-Stable Digital Pressure Gauge: Stable Platform for High-Precision Industrial Pressure Measurement
Product Overview
In industrial fields such as petrochemical, power, pharmaceutical, aerospace, and precision manufacturing, the accuracy and long-term stability of pressure parameters directly affect process control levels, equipment safe operation, and product quality consistency. Nexisense YK-120B Ultra-Stable Digital Pressure Gauge, as an upgraded product of the 100 series, adopts a single crystal silicon pressure sensor core, significantly reducing time drift and improving overall stability, meeting the needs of system integrators, IoT solution providers, and engineering project contractors for high-precision on-site or laboratory measurements.
The instrument uses high-precision low-power large-scale integrated circuits as the core, integrating high-precision measurement chips, battery charging protection circuits, sensors, and signal processing circuits, forming a reliable integrated measurement unit. The cast aluminum housing design not only enhances the appearance texture but also strengthens mechanical protection capabilities, adapting to the complex environments of industrial sites. The instrument supports gauge pressure, absolute pressure, and sealed gauge pressure and other pressure modes, with the range covering -0.1~60MPa, suitable for precise measurement and calibration scenarios of gas and liquid media.
For engineering companies, the YK-120B can serve as the local display and calibration benchmark for process pressure monitoring systems, or be integrated into data acquisition architectures, achieving seamless docking with upper systems through RS485 communication, reducing metering uncertainty risks in project implementation.
Core Technical Parameters
| Parameter | Value |
|---|---|
| Product Name | YK-120B Ultra-Stable Digital Pressure Gauge |
| Range | -0.1~60MPa (selected within range) |
| Pressure Mode | Gauge Pressure, Absolute Pressure, Sealed Gauge Pressure |
| Accuracy Class | 0.05, 0.02 |
| Communication | None, RS485 Communication |
| Ambient Temperature | -10~50°C |
| Relative Humidity | <95% |
| Atmospheric Pressure | 86~106kPa |
| Storage Temperature | -20~70°C |
| Display | White backlight, 5-digit digital display, with progress bar display |
| Power Supply | Internal battery power / External DC 9V voltage power / External DC 24V voltage power / Custom |
| Dimensions | Φ120mm×58mm |
| Weight | Approx. 0.5kg |
| Pressure Connection | M20×1.5 (thread specifications can be customized G1/2, G1/4, 1/4NPT, etc.) |
| Range Overload | 1.2 times overload |
Performance Advantages Analysis
YK-120B’s core competitiveness comes from the application of single crystal silicon pressure sensors. Compared with traditional diffused silicon sensors, the single crystal silicon core excels in sensitivity, temperature drift control, and long-term stability, with smaller time drift, effectively reducing the impact of temperature changes and time accumulation on measurement results, especially suitable for metering or process control links that require periodic high-precision verification.
The cast aluminum housing provides good mechanical strength and thermal stability. The white backlight 5-digit digital display with progress bar intuitively presents pressure values and range percentages, facilitating quick on-site readings and trend judgment. The low-power circuit design supports multiple power supply modes. The internal battery solution is suitable for renovation projects with limited power wiring, while external 9V or 24V power supply is convenient for integration with existing control cabinets.
The RS485 communication interface supports common industrial protocols such as Modbus, enabling multi-instrument networking and remote data acquisition, reducing interference risks in analog signal transmission and improving overall system reliability. The 1.2 times overload capacity provides the necessary safety margin for process fluctuation scenarios.
These features make the YK-120B highly applicable in high-precision pressure calibration, laboratory metering transfer, and industrial process key point monitoring, helping engineering teams control measurement uncertainty.
Application Fields and Integration Value
YK-120B is suitable for various industrial scenarios requiring high-precision pressure measurement, including on-site or laboratory calibration of pressure transmitters and precision pressure gauges, local monitoring of key nodes in process pipelines, and standard transfer tools in metering management systems.
For system integrators, the instrument can serve as an edge acquisition node, directly connected to PLC, DCS, or IoT gateways via RS485 to form a distributed pressure monitoring architecture. The non-communication version is suitable for pure local display requirements, while the RS485 version facilitates the construction of centralized data management platforms, supporting historical data traceability and trend analysis.
Engineering project contractors can use its 0.02 or 0.05 accuracy in projects such as pharmaceutical clean workshops, chemical reaction devices, or aviation ground test equipment to ensure pressure parameters are consistent with design values, reducing process adjustment or verification costs caused by measurement deviations. Flexible thread interface customization options simplify the matching process with different process pipelines.
Installation and Usage Guide
To ensure measurement accuracy and instrument life, the installation process must follow specifications:
Confirm that the selected range covers the actual process pressure range and reserve 1.2 times overload margin.
The process interface thread specification must match the instrument (standard M20×1.5, support customization of other specifications).
Use appropriate tools on the joint during installation to avoid directly twisting the gauge body. Add sealing gaskets to ensure reliable connection.
Select an installation location with ambient temperature -10~50°C and humidity <95%, avoiding strong electromagnetic interference sources.
Select the power supply mode according to project requirements. For internal battery version, verify initial power and display status after installation; for external power version, confirm voltage matching.
For RS485 version, after installation, set communication parameters and verify link connectivity with the upper system.
The instrument display is clear, and the white backlight facilitates reading in low-light environments. It is recommended that engineering companies provide basic operation and daily inspection training to the operation and maintenance team after project delivery.
Selection and Procurement Considerations
Technical procurement and project leaders are advised to focus on the following factors when selecting:
Select 0.05 class (conventional high-precision scenarios) or 0.02 class (metering transfer or extremely high requirement links) according to accuracy requirements.
Pressure mode must match the process type (gauge pressure is suitable for most open systems, absolute pressure or sealed gauge pressure is suitable for closed or vacuum-related conditions).
Communication requirements should be clear: select non-communication version when remote acquisition is not needed; prioritize RS485 when networking is required.
Power supply condition assessment: external 24V power supply can be used in areas with stable power; internal battery solution is preferred for remote or renovation projects.
For batch projects, specify thread specifications and range in advance to optimize delivery consistency and installation efficiency.
These considerations help system integrators balance performance and cost, providing engineering companies with reliable solutions that meet project technical specifications.
FAQ
Q1. What specific advantages does the YK-120B have in long-term stability when adopting a single crystal silicon sensor compared to traditional diffused silicon pressure gauges?
Single crystal silicon core has smaller time drift and lower temperature drift coefficient, effectively suppressing the impact of temperature fluctuations and time accumulation on zero point and full scale. In industrial processes requiring periodic calibration, this means longer calibration intervals and more stable process data output, reducing the repetitive verification workload for engineering teams.
Q2. In engineering project integration, how does the RS485 communication version dock with existing PLC or SCADA systems?
The RS485 interface supports standard industrial protocols and can map register addresses through Modbus RTU and other methods to realize remote reading of pressure values, status quantities, and diagnostic information. Integrators need to pay attention to bus topology, terminal resistance matching, and grounding specifications to ensure communication reliability in multi-node networking.
Q3. What impact do different power supply modes have on on-site deployment and maintenance cycles, and how to choose when purchasing?
Internal battery power is suitable for wiring difficulties or mobile calibration scenarios, with maintenance focus on regular power checks; external 9V or 24V power supply is convenient for unifying with control system power, reducing battery replacement frequency. Project leaders can balance according to on-site power conditions and expected operating cycles to control overall ownership cost.
Q4. In industrial environments with strong vibration or electromagnetic interference, how to ensure the measurement accuracy of YK-120B?
The cast aluminum housing provides certain mechanical protection, and the signal processing circuit has anti-interference design. During actual deployment, it is recommended to evaluate the vibration level of the installation location and add vibration reduction brackets if necessary; the RS485 version improves anti-common mode interference capability through differential transmission. During the procurement stage, additional protective measures can be confirmed in combination with on-site working conditions.
Q5. What are the differences in applicable scenarios between 0.02 class and 0.05 class accuracy versions in metering or process control projects?
0.02 class is suitable for laboratory metering transfer, high-end equipment calibration, or process links with strict uncertainty control; 0.05 class is suitable for general industrial process monitoring and on-site calibration, able to meet accuracy requirements while controlling procurement costs. Engineers can select according to the allowable error in the project technical specification.
Q6. What practical significance do thread customization and overload margin settings have for project implementation during installation?
Thread customization (G1/2, G1/4, 1/4NPT, etc.) avoids on-site adaptation processing, shortens installation cycle and reduces leakage risk; reserving 1.2 times overload margin can buffer instantaneous pressure peaks in the process and reduce the probability of sensor damage. Project contractors clearly defining these parameters in the design stage can effectively improve delivery quality and system availability.
Summary
Nexisense YK-120B Ultra-Stable Digital Pressure Gauge, with low time drift and high stability brought by single crystal silicon sensor, as well as flexible accuracy, power supply, and communication configurations, provides a reliable on-site solution for industrial high-precision pressure measurement. Its cast aluminum housing, clear display, and multiple integration options can effectively support system integrators in building stable monitoring architectures, helping engineering companies control metering risks and improve overall project technical levels.
Through standardized selection, installation, and maintenance practices, the instrument can continue to play a role in laboratory calibration and production process monitoring. If you need in-depth discussion on specific process parameters, integration solutions, or batch technical support, please contact the Nexisense professional team for targeted product configuration and engineering consulting services.
