3 Core Solutions for TS-TS204 Pressure Transmitter Remote Signal Interference

During the remote signal setup process of the TS-TS204 pressure transmitter, signal interference issues often trouble users. This article focuses on the diffused silicon Hirschmann pressure sensor with remote signal transmission function and provides 3 practical solutions to help operators quickly solve common problems such as unstable signal transmission and data distortion, ensuring the accuracy and reliability of pressure monitoring data at industrial sites.

I. Shielding and Grounding Optimization for Electromagnetic Interference (EMI)

In industrial environments, electromagnetic interference generated by equipment such as frequency converters and high-power motors is a major factor causing distortion in TS-TS204 remote signals. The following measures can significantly improve the situation:

• Application of twisted-pair shielded cables: Use shielded cables with copper mesh braid coverage rate ≥85%, and the shielding layer should be grounded at one end only (it is recommended on the control cabinet side) to avoid forming a ground loop. This is also applicable to products of the same series such as HP-31D and TS-TS201
• Grounding system upgrade: Set up an independent sensor grounding terminal, with grounding resistance ≤4Ω, and keep a distance of more than 5 meters from the grounding point of power equipment
• Filter installation: Install an EMI filter at the signal line inlet (recommended cutoff frequency: 1kHz)

Practice has shown that after implementing this solution on the PMT-PMT101 pressure transmitter in a chemical plant, the signal-to-noise ratio increased by 42%.

II. Compensation Technology for Signal Transmission Distance

When the transmission distance exceeds 300 meters, the 4-20mA signal of the TS-TS204 will attenuate, and compensation measures need to be adopted:

Note: For scenarios requiring long-distance displacement monitoring, it can be used together with domestic displacement sensor SSLS-XS draw-wire displacement sensor. Its 50000mm range and IP65 protection rating make it particularly suitable for outdoor environments such as water conservancy and sluice gates.

III. Power Supply Quality Improvement Solution

Voltage fluctuations directly affect the signal stability of pressure transmitters such as NPT-NPT102. A three-level power supply treatment is recommended:

1. Primary isolation: Use a 1:1 isolation transformer (such as model TD-2KVA recommended in the YM-1 installation manual)
2. Secondary voltage stabilization: Install an AC voltage stabilizer to control voltage fluctuations within ±2%
3. Tertiary filtering: Equip the DC side with a π-type filter, with ripple factor ≤1%

Engineering cases from Xi'an Shenghongchuang Instrumentation Co., Ltd. show that this solution reduced the annual failure rate of a power plant's TS-TS204 from 13% to 1.7%.

Extended Application: Coordinated Solution for Displacement Monitoring

In systems that require synchronous monitoring of pressure and displacement (such as hydraulic presses and sluice gate control), it is recommended to adopt a combined solution of pressure transmitters and displacement sensors. draw-wire encoder sluice gate opening meter features high accuracy of 0.01%FS and a Teflon anti-corrosion coating, and together with the Hirschmann sensor of the TS-TS204, it can form a complete monitoring network.

Implementation Recommendations and Maintenance Key Points

1. Regular calibration: According to the TS-TS203 calibration procedure, perform zero/full-scale calibration every 6 months2. Environmental protection: In harsh environments such as papermaking and textiles, the sensor diaphragm should be cleaned with reference to the PT-B maintenance guide3. Signal diagnosis: Use a HART communicator to read the diagnostic parameters (codes 21-25) in the NPT-NPT102 manual

Summary and Technical Support

Through measures in three aspects—electromagnetic shielding, distance compensation, and power supply optimization—the remote signal interference problem of the TS-TS204 pressure transmitter can be effectively resolved. As a high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides technical support and a 1-year warranty service for the full product series from CEMPX-CEMPX215 to TS-TS204. You are welcome to contact our engineers for customized solutions.