This article provides a detailed analysis of the complete installation and commissioning process for the diffused silicon Hossman sensor of the 064G-G6532 pressure transmitter, helping operators quickly master the correct use methods of products in the P-P964, P-P962 and other series. As core products of Xi'an Shenghongchuang Instrument Co., Ltd., these high-precision pressure transmitters are widely used in the field of industrial automation, and we will provide you with professional guidance from principle to practical operation.

Core Principles and Technical Advantages of Diffused Silicon Hossman Sensors

The diffused silicon Hossman pressure sensor adopts semiconductor strain gauge technology and realizes pressure signal conversion through the piezoresistive effect of silicon crystals. When external force acts on the sensor diaphragm, the Wheatstone bridge outputs a millivolt-level signal proportional to the pressure, which is amplified by a dedicated integrated circuit and then outputs a standard 4-20mA current signal. Compared with traditional strain gauge sensors, its sensitivity is increased by more than 30%, and temperature drift can be controlled within ±0.05%FS/℃.

Taking the P-P964 pressure transmitter as an example, its core components include:

• 316 stainless steel isolation diaphragm: corrosion resistance meets ASTM A240 standard
• Laser-trimmed resistor network: ensures 0.25 class accuracy
• Temperature compensation module: operating range -30～+85℃
• IP65 protective housing: suitable for harsh industrial site environments

Similar products such as Domestic General-Purpose Pressure Transmitter NPT103 Compact LCD Pressure Sensor also adopt similar principles, but provide more output options.

Selection Key Parameter Comparison

Detailed Explanation of the Complete Equipment Installation Process

Mechanical Installation Specifications

1. Interface treatment: ensure that the pressure port is clean and free of impurities. For M20×1.5 threaded interfaces, it is recommended to use PTFE thread seal tape for sealing, with the wrapping direction opposite to the thread rotation direction, and 2-3 layers of wrapping are sufficient.

2. Location selection: vibration sources and heat sources should be avoided. When measuring liquid pressure, the installation position should be lower than the pressure tapping point to prevent sediment accumulation. If used in a hydraulic control system, it is recommended to install a pulse damper.

Key Points for Electrical Wiring

Use shielded twisted pair wiring, and control the terminal tightening torque at 0.5-0.8N·m:

1. Red wire: power supply positive (+24VDC)
2. Black wire: signal output (4-20mA)
3. Shield layer: single-ended grounding

For three-wire models such as MBS-MBS1900, attention should also be paid to the connection quality of the reference ground wire.

On-Site Commissioning Operation Guide

Zero Point and Range Calibration

Use a HART communicator or local buttons for calibration:

• Zero point calibration: under no-pressure condition, adjust to 4.00mA output
• Full-scale calibration: apply rated pressure and adjust to 20.00mA output
• BP-A model supports ±8% zero shift and ±20% range adjustment

It is recommended to perform periodic calibration once every 6 months, and shorten it to 3 months under high-temperature operating conditions.

Fault Diagnosis Methods

Common problem handling:

Maintenance and Industry Applications

In petrochemical industry applications, it is recommended to:

• Check the condition of seals every quarter
• Use neutral solvents to clean the housing
• Avoid installation in strong electromagnetic field environments

For special models such as M5156-000005-016BG, its 316L stainless steel material is more suitable for measuring corrosive media.

Xi'an Shenghongchuang Instrument Co., Ltd.'s diffused silicon sensor products have passed ISO9001 quality management system certification, and have an MTBF record of more than 50,000 hours in scenarios such as constant-pressure water supply and thermoelectric generating units. If you need complete technical information or purchasing guidance for models such as P-P974, please feel free to contact our professional technical team.

Act now: Visit the product center to learn more detailed parameters of the Domestic General-Purpose Pressure Transmitter NPT103 Compact LCD Pressure Sensor, or call 400-xxx-xxxx for customized solutions.