PDS805 Coplanar Pressure Transmitter

PDS805 Coplanar Pressure Transmitter Overview

The PDS805 coplanar pressure transmitter is used for continuous pressure measurement in industrial process systems. It can measure the pressure of liquids, gases, and steam, and send the measured value to a control system through analog or digital communication signals.

Compared with direct threaded compact pressure transmitters, the coplanar pressure transmitter uses a more industrial field transmitter structure. Its process connection, sensor module, electronics housing, display, and communication functions are designed for demanding process applications where stability, accuracy, diagnostics, and long-term reliability are important.

The PDS805 supports 4–20 mA DC with HART communication, PROFIBUS PA, and FOUNDATION Fieldbus FF outputs. Through a HART communicator, fieldbus system, or compatible communication device, users can perform remote configuration, monitoring, diagnostics, simulation, and maintenance.

Smart Coplanar Pressure Transmitter Output and Communication

The PDS805 smart pressure transmitter can be selected with different output types according to the control system requirement.

For most industrial pressure measurement loops, 4–20 mA with HART communication is widely used because it is compatible with many PLC and DCS systems while still supporting smart configuration and diagnostic functions.

Key Features of the PDS805 Industrial Pressure Transmitter

High Accuracy Pressure Measurement

The PDS805 provides standard accuracy of ±0.04% FS, with the highest accuracy option up to ±0.025% FS depending on configuration. This supports stable and accurate process pressure monitoring in demanding industrial applications.

Coplanar Process Connection Structure

The coplanar design provides a robust industrial transmitter structure and supports convenient connection with manifolds, valves, adapters, or other pressure instrument accessories. It is suitable for field installation where maintenance, calibration, and long-term stability are required.

Fast 90 ms Response Time

With a response time of 90 ms, the transmitter can quickly reflect process pressure changes, making it suitable for monitoring and control loops where fast signal feedback is required.

100:1 Rangeability

The maximum rangeability of 100:1 allows the transmitter to cover a wide measurement span, improving flexibility during model selection and reducing the need for multiple narrow-range models.

Long-Term Stability for Process Control

The transmitter offers long-term stability of ±0.1% FS over 10 years, helping reduce recalibration frequency and maintenance work over the instrument’s service life.

Intelligent Diagnostics, Simulation, and Monitoring

The PDS805 supports smart diagnostic, simulation, and monitoring functions. These functions help maintenance personnel check instrument status, verify output signals, identify abnormal conditions, and simplify commissioning or troubleshooting.

Multiple Configuration Methods

Configuration can be performed through HART communication tools, PROFIBUS PA systems, FOUNDATION Fieldbus systems, or other compatible communication devices depending on the selected output.

Multiple Anti-Corrosion Material Options

A variety of wetted material options can be selected for different media. For corrosive chemicals, material selection should be confirmed according to medium composition, concentration, temperature, and process pressure.

Technical Specifications for PDS805 Coplanar Pressure Transmitter Selection

PDS805 Coplanar Gauge Pressure and Absolute Pressure Transmitter Options

The PDS805 series can be selected for either gauge pressure or absolute pressure measurement.

PDS805G Gauge Pressure Transmitter

The PDS805G gauge pressure transmitter measures pressure relative to atmospheric pressure. It is commonly used for pipeline pressure, pump discharge pressure, tank pressure, hydraulic systems, compressed air systems, water pressure, gas pressure, and general process pressure monitoring.

PDS805A Absolute Pressure Transmitter

The PDS805A absolute pressure transmitter measures pressure relative to absolute vacuum. It is suitable for vacuum systems, sealed vessels, evaporation processes, gas systems, and applications where atmospheric pressure variation must not affect the pressure reading.

Industrial Applications of PDS805 Smart Pressure Transmitter

Chemical and Petrochemical Pressure Measurement

Used for pressure monitoring in pipelines, reactors, storage tanks, dosing systems, pumps, separators, and process equipment. For corrosive media, the diaphragm and process connection materials should be selected carefully.

Power Generation and Steam Systems

Suitable for boiler auxiliary systems, steam pressure monitoring, feedwater systems, condensate lines, cooling water, and utility pressure measurement. For high-temperature steam, a syphon, cooling element, or diaphragm seal may be required.

Oil and Gas Pressure Monitoring

Applied in gas pipelines, oil transfer systems, compressor systems, fuel systems, pressure control skids, and auxiliary process lines where stable pressure measurement is needed.

Water Treatment and Utility Systems

Used in water supply systems, pumping stations, filtration equipment, desalination systems, wastewater treatment, and industrial utility pressure monitoring.

Industrial Automation and Control Loops

Suitable for PLC/DCS systems requiring 4–20 mA HART, PROFIBUS PA, or FOUNDATION Fieldbus FF signals for process monitoring and control.

General Equipment Pressure Measurement

Can be used on tanks, vessels, pumps, compressors, pneumatic systems, hydraulic equipment, and other industrial equipment requiring continuous pressure monitoring.

How to Select a PDS805 Coplanar Pressure Transmitter

When selecting a PDS805 coplanar pressure transmitter, the following details should be confirmed:

1. Pressure type
   Select PDS805G for gauge pressure or PDS805A for absolute pressure.
2. Measuring range
   Confirm normal operating pressure, maximum pressure, and calibrated range.
3. Output signal
   Select 4–20 mA + HART, PROFIBUS PA, or FOUNDATION Fieldbus FF according to the control system.
4. Accuracy requirement
   Confirm whether standard accuracy is sufficient or whether the highest accuracy option is required.
5. Process medium
   Confirm whether the medium is liquid, gas, steam, corrosive chemical, viscous fluid, or crystallizing medium.
6. Wetted material
   Select diaphragm and process connection materials according to medium compatibility.
7. Process temperature
   For hot steam or high-temperature liquids, confirm whether a syphon, cooling element, diaphragm seal, or remote seal structure is needed.
8. Process connection and manifold requirement
   Confirm whether the transmitter needs a direct process connection, two-valve manifold, gauge valve, needle valve, adapter, or other accessories.
9. Explosion-proof requirement
   For hazardous areas, confirm the required explosion-proof certification or project standard.
10. Display and electrical connection
    Confirm whether LCD display, M20×1.5, 1/2 NPT, or explosion-proof cable gland is required.

Pressure Transmitter Accessories for PDS805 Installation

Depending on site conditions, the PDS805 coplanar pressure transmitter may be used with different installation accessories, including:

• Needle valves
• Gauge valves
• Two valve manifolds
• Mounting brackets
• Syphons for steam pressure measurement
• Pressure instrument cooling elements
• Explosion proof cable glands
• Threaded flanges
• Tube fittings and impulse tubing
• PTFE gaskets and spiral wound gaskets
• Flushing rings for diaphragm seal applications

For high-temperature, corrosive, viscous, crystallizing, or hazardous media, accessory selection should be confirmed together with transmitter model selection.

PDS805 Coplanar Pressure Transmitter Supplier Support from SIYelectric

SIYelectric supplies PDS805 coplanar pressure transmitters for industrial projects, replacement orders, and process instrumentation procurement. We can help check model codes, review datasheets, confirm technical specifications, match installation accessories, and prepare quotations based on actual operating conditions.

For accurate quotation, please provide:

• pressure type: gauge or absolute
• measuring range
• process medium
• process temperature
• process pressure
• output signal requirement
• process connection type
• wetted material requirement
• display requirement
• electrical connection requirement
• explosion-proof or certification requirement
• required accessories

SIYelectric can also support related pressure transmitter accessories such as manifolds, needle valves, gauge valves, mounting brackets, syphons, cooling elements, explosion-proof cable glands, gaskets, tubing, and fittings.

Available documents may include technical datasheet, certificate of conformity, inspection report, packing list, and commercial invoice, depending on the project and order requirements.