TS1901-GPT Pressure Transmitter G1/4 for Hazardous Industrial Applications

Pressure monitoring in petroleum, chemical, power generation, and other process industries often takes place under demanding operating conditions. When instruments are installed where flammable gases, vapors, or other hazardous substances may exist, pressure measurement requires more than basic accuracy. Explosion protection, environmental resistance, process compatibility, electrical stability, and communication capability all need to be considered together.

The TS1901-GPT Pressure Transmitter (G1/4) is developed for continuous pressure measurement in industrial environments where reliable sensing and hazardous-area protection are important. It combines monosilicon sensing technology, explosion-proof construction, multiple international certifications, flexible output options, and a measurement range from 200 Pa to 10 MPa.

For engineers and industrial buyers, this configuration provides a practical pressure measurement option for process equipment, hazardous-area instrumentation, and automated control systems.

Why Hazardous-Area Pressure Measurement Needs Careful Selection

An EX area may contain a potentially explosive atmosphere created by flammable gas, vapor, or dust. Instrumentation installed in such locations must therefore satisfy applicable protection requirements to reduce ignition risks.

A pressure transmitter that performs well in a conventional environment may not necessarily be appropriate for an EX-rated installation. During product selection, engineers should evaluate several factors at the same time:

• Applicable hazardous-area certification

• Electrical protection design

• Pressure range and overload capability

• Measurement accuracy

• Process and ambient temperature

• Enclosure protection

• Wetted material compatibility

• Communication interface

• Installation and commissioning requirements

• Long-term manufacturing consistency

This broader evaluation helps ensure that the transmitter is compatible with both the measurement task and the overall plant safety architecture.

Explosion-Proof Design and International Certifications

The TS1901-GPT is designed with explosion-proof construction for demanding industrial applications. Its certification portfolio includes CSA, ATEX, IECEx, and NEPSI, while the product also complies with RoHS and CE requirements according to the supplied specifications.

For international projects, certification compatibility can be an important procurement factor. Different countries, industries, and hazardous-area classifications may require different approvals, so users should always confirm that the selected configuration matches the actual installation environment.

The transmitter uses a robust metal electrical protection housing to provide mechanical protection for its internal electronics. Industrial electrical systems can also experience transient voltage disturbances caused by switching operations, motor loads, and other equipment. The transmitter incorporates protection designed to improve its resistance to such field conditions.

Monosilicon Sensor Technology for Industrial Pressure Measurement

A pressure transmitter must continue to provide dependable readings when process conditions fluctuate. Startup, shutdown, pressure surges, and unexpected operating changes can expose sensing components to temporary overload conditions.

The TS1901 series uses advanced monosilicon sensing technology designed for demanding pressure measurement applications. This sensor architecture provides a combination of measurement performance and overload resistance for industrial process environments.

The available measurement range extends from 200 Pa to 10 MPa, allowing the transmitter platform to cover relatively low-pressure applications as well as higher-pressure process requirements.

The reference accuracy is specified at ±0.075% URL, with an optional ±0.05% URL configuration for applications requiring a higher level of measurement precision.

For process engineers, the combination of broad range selection and sensor overload capability can be useful when designing pressure monitoring systems where operating conditions are not always constant.

Controlling Temperature and Static Pressure Influences

Pressure measurement accuracy can be affected by environmental temperature changes and static pressure. This becomes particularly relevant when a transmitter operates continuously outdoors, close to process equipment, or under changing process conditions.

The TS1901-GPT incorporates precision filling-fluid technology intended to reduce the influence of temperature and static pressure on measurement performance.

Its specified media temperature range is -40°C to 120°C, providing flexibility for industrial applications with substantial temperature variation.

When evaluating a pressure transmitter, engineers should therefore look beyond the nominal accuracy figure. Actual operating temperature, pressure, process media, installation position, and environmental conditions should all be considered when determining expected measurement performance.

Convenient Local Operation with Protected External Controls

Industrial pressure transmitters may be installed in locations where routine access is difficult. During commissioning or maintenance, however, technicians may still need to check settings or make authorized parameter adjustments.

The TS1901 series incorporates a 355° rotatable display module and an external three-button menu interface. This arrangement allows operators to view information and perform suitable configuration operations at the installation location.

The external control design is intended to provide convenient local operation while maintaining the required level of electrical protection. This can reduce the need to remove the transmitter simply to access its operating interface.

For maintenance personnel, local access can be useful when checking configuration parameters, reviewing measurement information, or completing commissioning procedures.

Flexible Signal and Communication Interfaces

Integration with existing automation infrastructure is another important consideration when selecting an industrial pressure transmitter.

The TS1901-GPT supports multiple output configurations, including:

• 4–20 mA

• 4–20 mA/HART

• Modbus-RTU/RS485

The standard 4–20 mA two-wire signal is widely used with PLC and DCS systems because of its straightforward integration. The HART option adds digital communication capabilities while retaining the conventional current output.

For systems based on digital communication, Modbus-RTU/RS485 provides another interface option. This flexibility allows system designers to select an output configuration that fits the existing control architecture.

The specified power supply requirements include 10.5–55 VDC for the 4–20 mA two-wire configuration and 16.5–55 VDC for the 4–20 mA + HART configuration.

IP67 Housing and Process-Compatible Materials

Hazardous-area protection is only one aspect of industrial instrument selection. Pressure transmitters may also encounter dust, moisture, vibration, temperature changes, and aggressive process media during long-term operation.

The TS1901-GPT features an IP67 protection rating, providing protection against dust ingress and temporary water exposure under applicable conditions.

For wetted components, SUS316L and Hastelloy C diaphragm materials are available. These options allow users to select a suitable material according to the characteristics of the measured medium.

The transmitter can be configured for pressure measurement of:

• Liquids

• Gases

• Steam

With appropriate system configuration, the pressure measurement principle can also be applied to related process measurement requirements such as flow, liquid level, and density.

Available process connection options include M20×1.5(M), 1/2-14NPT(F), and 1/4-18NPT(F), giving engineers flexibility when integrating the transmitter with different process systems.

Manufacturing Traceability for Consistent Instrument Quality

Certification and product specifications are important, but consistent manufacturing is also critical for industrial instrumentation. For equipment used in process control or hazardous locations, buyers may need confidence that individual units are produced and tested according to controlled procedures.

Danrui Sensors has developed a digitalized manufacturing and quality management approach for pressure and differential pressure instruments. Its production process uses an MES system to track key stages including assembly, testing, aging, and final inspection.

Each sensor is assigned an individual SN code, allowing production information to be connected with the corresponding unit. This type of traceability can support production management, quality control, and after-sales investigation.

The supplied company information also indicates that its testing platform includes high-precision equipment with maximum testing precision reaching 0.005%. Before shipment, pressure transmitters undergo procedures such as accuracy calibration, functional verification, and high-temperature aging tests.

For OEM customers and industrial project buyers, traceable production can help improve confidence in product consistency across different manufacturing batches.

Applications of the TS1901-GPT Pressure Transmitter

The TS1901-GPT Pressure Transmitter (G1/4) is intended for continuous pressure monitoring in industrial environments where process conditions and installation requirements can be demanding.

Petroleum Industry

Petroleum facilities may contain hazardous areas around pipelines, process equipment, storage systems, and other infrastructure. An appropriately certified pressure transmitter can provide continuous monitoring while meeting project-specific explosion protection requirements.

Chemical Processing

Chemical production systems frequently involve corrosive media, changing pressure conditions, and potentially hazardous atmospheres. The combination of explosion-proof construction, optional diaphragm materials, environmental protection, and flexible communication interfaces makes the transmitter suitable for selected chemical process applications.

Power Generation

Power plants require reliable instrumentation for continuous process monitoring. Pressure transmitters may encounter temperature variations, electrical disturbances, and extended operating periods, making sensing reliability and environmental protection important selection criteria.

Process Automation

The availability of 4–20 mA, HART, and Modbus-RTU/RS485 outputs allows the transmitter to be considered for different PLC, DCS, and industrial communication architectures.

Selection Checklist for an EX-Area Pressure Transmitter

Before ordering an explosion-proof pressure transmitter, engineers should confirm the complete application rather than focusing only on the required pressure range.

Important questions include:

1. What hazardous-area classification applies to the installation?

2. Which certification is required for the destination market?

3. What is the normal pressure range and possible overload pressure?

4. What are the minimum and maximum operating temperatures?

5. Is the process medium compatible with the selected diaphragm material?

6. Which process connection is required?

7. Does the control system require 4–20 mA, HART, or RS485 communication?

8. What enclosure protection level is required?

9. Will local display and parameter adjustment be necessary?

10. What calibration, testing, and traceability documents are required?

Checking these points in advance can help prevent compatibility issues after installation.

Advantages for Industrial Buyers

For B2B purchasers, the value of a pressure transmitter is determined not only by its sensor accuracy but also by how well it fits the complete project.

The TS1901-GPT provides several features that can support industrial procurement:

• 200 Pa to 10 MPa measurement range

• ±0.075% URL reference accuracy

• Optional ±0.05% URL accuracy

• Monosilicon sensing technology

• Explosion-proof construction

• CSA, ATEX, IECEx, and NEPSI approvals

• IP67 enclosure protection

• 355° rotatable display

• External three-button operation

• 4–20 mA, HART, and Modbus-RTU/RS485 options

• SUS316L and Hastelloy C diaphragm choices

• Multiple process connection configurations

• MES-based production traceability

These specifications make the transmitter adaptable to a broad range of industrial pressure monitoring projects.

Conclusion

Selecting an industrial pressure transmitter for a hazardous environment requires a balanced assessment of measurement performance, explosion protection, environmental resistance, communication capability, and manufacturing quality.

The TS1901-GPT Pressure Transmitter (G1/4) combines advanced monosilicon sensing, a 200 Pa–10 MPa measurement range, high measurement accuracy options, IP67 protection, flexible output interfaces, and multiple international hazardous-area certifications. Its local display and external controls also provide practical benefits during commissioning and maintenance.

For petroleum, chemical, power generation, and other process industries, the transmitter can provide a flexible foundation for continuous pressure monitoring where safety and measurement reliability are both important. With digitalized manufacturing management, individual product traceability, precision testing, and professional pressure measurement expertise,

Danrui Sensors supports industrial customers seeking dependable pressure instrumentation for demanding applications.

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Danrui Sensors