The Honeywell ST 800 Series STR82D Pressure Transmitter is a state-of-the-art process instrumentation device designed for precision pressure measurement in demanding industrial and marine environments. Featuring a remote diaphragm seal configuration and Honeywell's proprietary SMART technology, this transmitter delivers exceptional accuracy, stability, and reliability for process control applications where measurement precision directly impacts product quality, safety, and operational efficiency. Auto2mation is pleased to offer this NEW condition Honeywell pressure transmitter to clients seeking the highest standards of process instrumentation.

Pressure transmitters serve as the sensory organs of modern process control systems, converting physical pressure variables into standardized electrical signals that can be interpreted by programmable logic controllers (PLCs), distributed control systems (DCS), and supervisory control and data acquisition (SCADA) platforms. The Honeywell ST 800 Series represents the cutting edge of pressure measurement technology, incorporating advanced sensor designs, digital signal processing, and comprehensive diagnostics that set new benchmarks for process instrumentation performance. The STR82D variant with its remote diaphragm seal is specifically engineered for applications where the process medium is corrosive, viscous, or at elevated temperatures that would damage conventional direct-mount transmitters.

Key Features & Specifications

The Honeywell ST 800 Series STR82D incorporates an impressive array of features that make it one of the most capable pressure transmitters available for industrial process control. Its ATEX certifications, wide operating range, and HART communication protocol ensure compatibility with the most demanding applications and control architectures.

• HART Protocol: HART Registered for digital communication over 4-20mA
• Supply Voltage: 11 to 42 VDC for flexible loop-powered installation
• Process Temperature: -40 to 85 Deg C operating range
• Factory Calibration: 0 to 100 inH2O
• Ranged Configuration: 0 to 800 mmH2O
• Full Range: -400 to 400 inH2O
• Enclosure Rating: IP66/IP67 for harsh environment protection
• ATEX Certified: SIRA 12ATEX2233X - Ex ia IIC T4 Ca
• Additional Certifications: Ex Db IIC T6...T4 Ga/Gb, Ex Tb IIIC T95C..T120C Db
• Process Connection: M20 and 2" 900/1500LB flange options
• Wetted Materials: 316/L stainless steel construction

Technical Specifications

Specification	Details
Product Name	Honeywell ST 800 Series STR82D Pressure Transmitter
Manufacturer	Honeywell
Series	ST 800 Series
Model Number	STR82D-21CS000-000000000-C-BHC-11C-0-11A7-00-0000
Part Reference	50071726
Supply Voltage	11 to 42 VDC
Process Limits	-40 to 85 Deg C
Factory Calibration	0 to 100 inH2O
Ranged	0 to 800 mmH2O
Measurement Range	-400 to 400 inH2O
Enclosure	IP66/IP67
ATEX Certificate	SIRA 12ATEX2233X
Flange Rating	2" 900/1500LB B16.5 ASTM A182F 316/L
Communication	HART Protocol

Applications & Use Cases

The Honeywell ST 800 Series STR82D Pressure Transmitter is deployed across a vast spectrum of process industries where accurate, reliable pressure measurement forms the foundation of effective process control. In oil and gas production, this transmitter monitors wellhead pressures, separator levels, pipeline pressures, and tank farm inventories. The remote diaphragm seal configuration isolates the transmitter's sensitive electronics from corrosive hydrocarbon media and extreme process temperatures, ensuring long-term measurement stability in production environments.

Marine and offshore applications benefit significantly from the STR82D's ATEX certifications and IP66/IP67 enclosure rating. Offshore platforms, FPSO vessels, and tankers utilize this transmitter for cargo tank pressure monitoring, ballast system control, and process equipment protection. The intrinsically safe Ex ia certification permits installation in Zone 0 hazardous areas where explosive gas atmospheres may be present continuously. The transmitter's ability to operate from -50C to +85C ambient temperature makes it suitable for offshore installations in arctic and tropical climates alike.

Chemical and pharmaceutical manufacturing represents another key application area, where the 316/L stainless steel wetted parts provide corrosion resistance against aggressive process media. The HART digital communication capability enables remote configuration, diagnostics, and multivariable data access without requiring additional wiring. Food and beverage processing, water treatment, and power generation facilities also rely on Honeywell ST 800 Series transmitters for critical pressure, level, and flow measurements that ensure regulatory compliance and product quality.

Why Choose the Honeywell ST 800 Series STR82D

Honeywell has been at the forefront of process automation instrumentation for decades, and the ST 800 Series represents their most advanced pressure transmitter platform. The series incorporates Honeywell's proprietary piezoresistive sensor technology combined with digital signal processing algorithms that deliver measurement stability superior to conventional analog transmitters. The modular architecture allows field replacement of the electronics module without removing the transmitter from the process, reducing maintenance downtime and simplifying spare parts inventory management.

Auto2mation's offering of this NEW condition STR82D transmitter provides exceptional value for organizations seeking Honeywell quality without the lead times associated with factory orders. Our 30-day warranty, free shipping, and technical support ensure that your procurement experience is as seamless as the transmitter's integration into your control system.

Compatibility & Integration

The Honeywell STR82D integrates seamlessly into any process control architecture that supports 4-20mA analog inputs or HART digital communication. The HART protocol enables access to secondary variables including sensor temperature, diagnostic status, and device configuration parameters through the same two-wire connection that carries the primary 4-20mA signal. Popular distributed control systems including Honeywell Experion, Yokogawa CENTUM, Emerson DeltaV, and Siemens PCS7 all provide native HART device support for the ST 800 Series.

When installing this transmitter, ensure that your loop power supply provides sufficient voltage (11-42 VDC) at the transmitter terminals, accounting for wiring resistance and any safety barrier voltage drops in intrinsically safe installations. The remote diaphragm seal should be mounted at the process connection point with capillary tubing routed to avoid excessive temperature exposure and physical damage. Auto2mation can provide installation guidance and recommend compatible handheld configurators for HART device commissioning and maintenance.

Maintenance & Support

The Honeywell ST 800 Series transmitters are designed for minimal maintenance requirements, but periodic verification of calibration accuracy is recommended to ensure continued measurement integrity. Honeywell's advanced diagnostics monitor sensor health, electronics temperature, and process connection integrity, alerting operators to potential issues before they affect measurement accuracy. Auto2mation supports your instrumentation maintenance program with our 30-day warranty on new products, technical consultation, and access to Honeywell documentation and configuration tools.

Frequently Asked Questions

Q1: What is the measurement range of the STR82D transmitter?

The transmitter has a full measurement range of -400 to 400 inH2O, with factory calibration at 0 to 100 inH2O and a configured range of 0 to 800 mmH2O.

Q2: What communication protocol does this transmitter support?

The STR82D supports HART digital communication over the 4-20mA analog signal, enabling remote configuration, diagnostics, and multivariable data access.

Q3: What ATEX certifications does this transmitter hold?

The transmitter holds SIRA 12ATEX2233X certification for Ex ia IIC T4 Ca (intrinsically safe) and additional certifications for flameproof and dust protection applications.

Q4: What is the enclosure protection rating?

The STR82D features IP66/IP67 enclosure protection, making it suitable for outdoor installation and harsh industrial environments.

Q5: What supply voltage is required?

The transmitter requires 11 to 42 VDC loop power, compatible with standard 24 VDC process control power supplies.

Q6: What process connection options are available?

This transmitter includes M20 and 2" 900/1500LB flange connections with 316/L stainless steel wetted parts for corrosion resistance.

Q7: What warranty does Auto2mation provide?

Auto2mation provides a 30-day warranty on this NEW Honeywell STR82D transmitter with free shipping on all orders.

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