SP-112G Pressure Transmitter Installation Must-Read: Diffused Silicon HBM Sensor Dimensional Drawing and Installation Essentials

As a key device in industrial automation control, the correct installation of the diffused silicon HBM pressure sensor in the SP-112G pressure transmitter directly affects measurement accuracy and service life. This article explains in detail the dimensional drawings and installation essentials of the SP-112G pressure transmitter, helping technical evaluation personnel master the installation specifications of the diffused silicon HBM sensor and ensure stable equipment operation.

I. Core Advantages of the SP-112G Pressure Transmitter and Diffused Silicon HBM Sensor

The SP-112G pressure transmitter adopts Germany HBM original diffused silicon sensing technology, featuring high accuracy of 0.1%FS and stability over a wide temperature range of -40℃~125℃. Its core component, the diffused silicon pressure sensor, realizes pressure-to-electrical signal conversion through the semiconductor piezoresistive effect. Compared with traditional strain gauge sensors, it offers strong shock resistance and low long-term drift (<±0.1%/year). The SP-112G series provided by Xi'an Shenghongchuang Instrumentation Co., Ltd. has passed ISO9001 quality system certification and is suitable for harsh working conditions such as petrochemical and water treatment applications.

II. Analysis of Key Dimensional Parameters of the SP-112G Pressure Transmitter

Before installation, technical evaluation personnel need to focus on confirming the following dimensional parameters (taking the SP-112G-DN50 model as an example):

Note: There are differences in diaphragm thickness among models with different measurement ranges (such as 0-1MPa and 0-10MPa). Verification should be carried out with reference to the SP-112G dimensional drawing included in the package (drawing number: SHC-SP112G-2023).

III. Five Major Installation Prohibitions for the Diffused Silicon HBM Sensor

To avoid damage to the core sensing element of the SP-112G pressure transmitter, special attention should be paid during installation:

• Mechanical stress control: The installation torque must not exceed 15N·m, as overtightening may cause excessive diaphragm deformation
• Media compatibility: For corrosive media, a 316L stainless steel isolation diaphragm must be added (optional accessory code: SHC-IM-04)
• Vibration protection: When pipeline vibration is >5g, an anti-vibration bracket must be used (refer to GB/T 13364-2012 standard)
• Temperature gradient: Avoid installation in areas with sudden temperature changes; it is recommended to use the heat dissipation fins of the PTG-PTG485 model
• Electrical interference: The signal cable must maintain a distance of >30cm from power cables, and shielded twisted pair cable should be used when necessary

IV. Step-by-Step Installation Guide (Taking the HBP-800D Model as an Example)

1.Pre-installation inspection: Use a megohmmeter to test the sensor insulation resistance (should be ≥100MΩ/500VDC)

2.Mechanical installation:

1. Wrap PTFE sealing tape around the pipeline thread (2-3 turns)
2. Manually screw the transmitter into the pipeline port, then tighten it with a torque wrench to 12±1N·m
3. The installation direction should keep the sensor diaphragm perpendicular to the media flow direction

3.Electrical connection:

• 4-20mA output type: connect the red wire to 24VDC+, and the black wire to signal+
• RS485 type (such as TPT-TPT503): the A/B wires require terminal matching with a 120Ω resistor

V. Maintenance Essentials

According to the recommendations in the JN-8001 maintenance manual:

• Routine inspection: Clean the sensor surface monthly with anhydrous ethanol and check whether the O-ring is aging
• Regular calibration: Perform zero/full-scale calibration every 6 months (using a standard pressure source with accuracy ≥0.05%)
• Troubleshooting: When the output signal is abnormal, first check the supply voltage of the CPS-CPS2016 remote transmission module

VI. Key Technical Evaluation Indicator Comparison

When evaluating the performance differences between the SP-112G and competing products (such as Vegabar-Vegabar14), it is recommended to focus on:

Summary and Technical Service Support

Correct installation of the SP-112G pressure transmitter can extend the service life of the diffused silicon HBM sensor by 3-5 years. Xi'an Shenghongchuang Instrumentation Co., Ltd. provides a 1-year warranty service for PRC-905 series products and can customize special specifications such as the YM-1JY explosion-proof model according to customer requirements. If you need the complete installation video or dimensional CAD drawings for SP-111G/SP-112G, please contact our technical engineering team.

Take action now: Call 029-XXXXXXX to obtain the "Industrial Pressure Transmitter Installation Specification White Paper", or visit www.shenghc.com to check the real-time inventory of PTG-PTG485 and other series products.