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smartline st800 pressure transmitters

SmartLine STG800 - Gauge Pressure

SmartLine® ST800 Gauge Pressure Transmitters offer exceptional performance and are ideal for high-pressure measurements in boilers and fuel feeds, and tank level measurement applications with a relatively high process temperature.

Overview
ST800 Dual Head Gauge Pressure Transmitters are suited for applications requiring small flange or 1/2” NPT connections. Typical applications include gauge pressure measurement of reaction vessels in the chemical industry and level applications with process temperatures of up to 302°F /150°C.

In-Line transmitters are screwed directly onto a 1/2” male NPT nipple and can be installed in hazardous environments for accurate, repeatable pressure measurement. Typical applications include high-pressure measurement in boilers, fuel feeds and high-pressure reaction vessels in the petrochemical and hydrocarbon recovery industries.
The following models are available:

ModelRange(psi)Range(Bar)
 STG830/STG83L 0-50 0-3.5
 STG840/STG84L 0-500 0-35
 STG870/STG87L 0-3,000 0-210
 STG88L 0-6,000 0-415
 STG89L 0-10,000 0-690
Specifications

Processing & Performance Metrics

  • Accuracy
    • Up to 0.0375% of span (standard), 0.025% (optional)

Wiring / Mechanical & Physical Properties

  • Wiring
    • Up to 16 AWG (1.5 mm diameter)

Mechanical & Physical Properties

  • Wetted Materials
    • 316L Stainless Steel, Hastelloy C-276, Monel 400, Tantalum, Gold-Plated options

Electrical Specifications

  • Supply Voltage
    • DE: 15 to 49.3 VDC
    • FF: 9 to 32 VDC
    • HART: 10.8 to 42.4 VDC

Environmental Conditions

  • Stability
    • Up to 0.015% of URL per year for 15 years
  • Relative Humidity
    • 0 to 100% RH
  • Rangeability
    • Up to 100:1 (model dependent)
  • Overpressure Limits
    • STG830/STG83L: 75 psi (5.25 bar)
    • STG840/STG84L: 1500 psi (103 bar)
    • STG870/STG87L: 4500 psi (310 bar)
    • STG88L: 9000 psi (620 bar)
    • STG89L: 15000 psi (1035 bar)
  • Measurement Type
    • Gauge Pressure
  • Maximum Allowable Working Pressure (MAWP)
    • STG830/STG83L: 50 psi (3.5 bar)
    • STG840/STG84L: 500 psi (35 bar)
    • STG870/STG87L: 3000 psi (210 bar)
    • STG88L: 6000 psi (420 bar)
    • STG89L: 10000 psi (690 bar)
  • Ambient Temperature Limits
    • -40 to +85 deg C (Ambient); -55 to +120 deg C (Storage)

Functional & Control Features

  • Sensor Technology
    • Piezoresistive sensor with on-chip temperature compensation

Standards & Certifications

  • Safety Approvals
    • SIL 2/3 Certified, Dual Seal design, NAMUR NE-107 Extended Diagnostics

I/O Capabilities

  • Process Connection Type
    • 1/2 in NPT (Female), DIN 19213, 1/2 in NPT (Male), 9/16-18 High-Pressure Cone & Thread, G 1/2-B Male
  • Configuration
    • External Zero, Span & Configuration Capability; Three-Button Local Configuration

Communication & Protocols

  • Output/Communications
    • 4 to 20 mA, Honeywell DE, HART (v7.0), FOUNDATION Fieldbus

Software & Interface

  • Fill Fluids
    • Silicone Oil 200, CTFE, NEOBEE M-20, Silicone Oil 704

Technical Specifications

  • Display Options
    • Modular LCD (Alphanumeric or Advanced Graphics), Multiple Screens, Configurable Units

Processing & Performance Metrics

  • Accuracy
    • Up to 0.0375% of span (standard), 0.025% (optional)

Wiring / Mechanical & Physical Properties

  • Wiring
    • Up to 16 AWG (1.5 mm diameter)

Mechanical & Physical Properties

  • Wetted Materials
    • 316L Stainless Steel, Hastelloy C-276, Monel 400, Tantalum, Gold-Plated options

Electrical Specifications

  • Supply Voltage
    • DE: 15 to 49.3 VDC
    • FF: 9 to 32 VDC
    • HART: 10.8 to 42.4 VDC

Environmental Conditions

  • Stability
    • Up to 0.015% of URL per year for 15 years
  • Relative Humidity
    • 0 to 100% RH
  • Rangeability
    • Up to 100:1 (model dependent)
  • Overpressure Limits
    • STG830/STG83L: 75 psi (5.25 bar)
    • STG840/STG84L: 1500 psi (103 bar)
    • STG870/STG87L: 4500 psi (310 bar)
    • STG88L: 9000 psi (620 bar)
    • STG89L: 15000 psi (1035 bar)
  • Measurement Type
    • Gauge Pressure
  • Maximum Allowable Working Pressure (MAWP)
    • STG830/STG83L: 50 psi (3.5 bar)
    • STG840/STG84L: 500 psi (35 bar)
    • STG870/STG87L: 3000 psi (210 bar)
    • STG88L: 6000 psi (420 bar)
    • STG89L: 10000 psi (690 bar)
  • Ambient Temperature Limits
    • -40 to +85 deg C (Ambient); -55 to +120 deg C (Storage)

Functional & Control Features

  • Sensor Technology
    • Piezoresistive sensor with on-chip temperature compensation

Standards & Certifications

  • Safety Approvals
    • SIL 2/3 Certified, Dual Seal design, NAMUR NE-107 Extended Diagnostics

I/O Capabilities

  • Process Connection Type
    • 1/2 in NPT (Female), DIN 19213, 1/2 in NPT (Male), 9/16-18 High-Pressure Cone & Thread, G 1/2-B Male
  • Configuration
    • External Zero, Span & Configuration Capability; Three-Button Local Configuration

Communication & Protocols

  • Output/Communications
    • 4 to 20 mA, Honeywell DE, HART (v7.0), FOUNDATION Fieldbus

Software & Interface

  • Fill Fluids
    • Silicone Oil 200, CTFE, NEOBEE M-20, Silicone Oil 704

Technical Specifications

  • Display Options
    • Modular LCD (Alphanumeric or Advanced Graphics), Multiple Screens, Configurable Units
  • Accuracy : Up to 0.0375% of span (standard), 0.025% (optional)
  • Wiring : Up to 16 AWG (1.5 mm diameter)
  • Wetted Materials : 316L Stainless Steel, Hastelloy C-276, Monel 400, Tantalum, Gold-Plated options
  • Supply Voltage : DE: 15 to 49.3 VDC|FF: 9 to 32 VDC|HART: 10.8 to 42.4 VDC
  • Stability : Up to 0.015% of URL per year for 15 years
  • Sensor Technology : Piezoresistive sensor with on-chip temperature compensation
  • Safety Approvals : SIL 2/3 Certified, Dual Seal design, NAMUR NE-107 Extended Diagnostics
  • Relative Humidity : 0 to 100% RH
  • Rangeability : Up to 100:1 (model dependent)
  • Process Connection Type : 1/2 in NPT (Female), DIN 19213, 1/2 in NPT (Male), 9/16-18 High-Pressure Cone & Thread, G 1/2-B Male
  • Overpressure Limits : STG830/STG83L: 75 psi (5.25 bar)|STG840/STG84L: 1500 psi (103 bar)|STG870/STG87L: 4500 psi (310 bar)|STG88L: 9000 psi (620 bar)|STG89L: 15000 psi (1035 bar)
  • Output/Communications : 4 to 20 mA, Honeywell DE, HART (v7.0), FOUNDATION Fieldbus
  • Measurement Type : Gauge Pressure
  • Maximum Allowable Working Pressure (MAWP) : STG830/STG83L: 50 psi (3.5 bar)|STG840/STG84L: 500 psi (35 bar)|STG870/STG87L: 3000 psi (210 bar)|STG88L: 6000 psi (420 bar)|STG89L: 10000 psi (690 bar)
  • Fill Fluids : Silicone Oil 200, CTFE, NEOBEE M-20, Silicone Oil 704
  • Display Options : Modular LCD (Alphanumeric or Advanced Graphics), Multiple Screens, Configurable Units
  • Configuration : External Zero, Span & Configuration Capability; Three-Button Local Configuration
  • Ambient Temperature Limits : -40 to +85 deg C (Ambient); -55 to +120 deg C (Storage)
Brochure
Name
Description
File Size
Date
Size
SmartLine® ST700 Absolute Pressure Transmitters are targeted at applications requiring robust performance in vacuum applications.This includes low-pressure measurement in vacuum distillation columns.
application/pdf 5.39 MB
10/31/2023
5.39 MB
Download the latest family brochure for SmartLine. This covers the new features of all Temperature, Pressure, Multivariable and many more transmitters that Honeywell has to offer.
application/pdf 14.99 MB
1/29/2024
14.99 MB
Our SmartLine ST800 Pressure Transmitters include absolute pressure, gauge pressure, draft range pressure, flanged and remote seal transmitters.
application/pdf 863.51 KB
7/1/2023
863.51 KB
SmartLine® ST800 Absolute Pressure Transmitters are used in vacuum applications that require high accuracy. The transmitters are ideal for low-pressure measurement in vacuum distillation columns.
application/pdf 575.21 KB
10/31/2023
575.21 KB
Data Sheet
Name
Description
File Size
Date
Size
Pressure_ST800_ST700_FirmwareReleaseSet13_R511
application/pdf 113.92 KB
1/14/2026
113.92 KB
STG800 SmartLine Gauge Pressure Technical Specification 34-ST-03-83
application/pdf 1.59 MB
12/17/2025
1.59 MB
HART DTMs for ST 800, ST 700, SMV800, STT850, STT650, STT750, STT700, ST 3000, and STT 250 products. Device configuration parameters are organized under Configuration, Monitoring, Diagnostics and Maintenance giving a good user experience.
application/pdf 109.55 KB
10/31/2023
109.55 KB
Pressure_ST800_ST700_FirmwareReleaseSet13_R511
application/pdf 122.35 KB
10/31/2023
122.35 KB
HART DTMs for ST 800, ST 700, SMV800, STT850, STT650, STT750, STT700, ST 3000, and STT 250 products. Unzip the package and see the Release notes for more details
application/pdf 125.22 KB
9/15/2022
125.22 KB
Pressure_ST800_ST700_FirmwareReleaseSet14_R511.1
application/pdf 118.56 KB
10/31/2023
118.56 KB
White Paper
Name
Description
File Size
Date
Size
White Paper detailing the materials selected and used in the construction of Honeywell pressure transmitters for process control systems in processing industries.
application/pdf 1.92 MB
6/8/2022
1.92 MB
Name
Description
File Size
Date
Size
Pressure_ST800_ST700_FirmwareReleaseSet13_R511
application/pdf 113.92 KB
1/14/2026
113.92 KB
STG800 SmartLine Gauge Pressure Technical Specification 34-ST-03-83
application/pdf 1.59 MB
12/17/2025
1.59 MB
SmartLine® ST700 Absolute Pressure Transmitters are targeted at applications requiring robust performance in vacuum applications.This includes low-pressure measurement in vacuum distillation columns.
application/pdf 5.39 MB
10/31/2023
5.39 MB
Download the latest family brochure for SmartLine. This covers the new features of all Temperature, Pressure, Multivariable and many more transmitters that Honeywell has to offer.
application/pdf 14.99 MB
1/29/2024
14.99 MB
HART DTMs for ST 800, ST 700, SMV800, STT850, STT650, STT750, STT700, ST 3000, and STT 250 products. Device configuration parameters are organized under Configuration, Monitoring, Diagnostics and Maintenance giving a good user experience.
application/pdf 109.55 KB
10/31/2023
109.55 KB
Our SmartLine ST800 Pressure Transmitters include absolute pressure, gauge pressure, draft range pressure, flanged and remote seal transmitters.
application/pdf 863.51 KB
7/1/2023
863.51 KB
Pressure_ST800_ST700_FirmwareReleaseSet13_R511
application/pdf 122.35 KB
10/31/2023
122.35 KB
White Paper detailing the materials selected and used in the construction of Honeywell pressure transmitters for process control systems in processing industries.
application/pdf 1.92 MB
6/8/2022
1.92 MB
HART DTMs for ST 800, ST 700, SMV800, STT850, STT650, STT750, STT700, ST 3000, and STT 250 products. Unzip the package and see the Release notes for more details
application/pdf 125.22 KB
9/15/2022
125.22 KB
Pressure_ST800_ST700_FirmwareReleaseSet14_R511.1
application/pdf 118.56 KB
10/31/2023
118.56 KB
SmartLine® ST800 Absolute Pressure Transmitters are used in vacuum applications that require high accuracy. The transmitters are ideal for low-pressure measurement in vacuum distillation columns.
application/pdf 575.21 KB
10/31/2023
575.21 KB
Name
Description
File Size
Date
Size
SmartLine® ST700 Absolute Pressure Transmitters are targeted at applications requiring robust performance in vacuum applications.This includes low-pressure measurement in vacuum distillation columns.
5.39 MB
10/31/2023
Download the latest family brochure for SmartLine. This covers the new features of all Temperature, Pressure, Multivariable and many more transmitters that Honeywell has to offer.
14.99 MB
1/29/2024
Our SmartLine ST800 Pressure Transmitters include absolute pressure, gauge pressure, draft range pressure, flanged and remote seal transmitters.
863.51 KB
7/1/2023
SmartLine® ST800 Absolute Pressure Transmitters are used in vacuum applications that require high accuracy. The transmitters are ideal for low-pressure measurement in vacuum distillation columns.
575.21 KB
10/31/2023
Pressure_ST800_ST700_FirmwareReleaseSet13_R511
113.92 KB
1/14/2026
STG800 SmartLine Gauge Pressure Technical Specification 34-ST-03-83
1.59 MB
12/17/2025
HART DTMs for ST 800, ST 700, SMV800, STT850, STT650, STT750, STT700, ST 3000, and STT 250 products. Device configuration parameters are organized under Configuration, Monitoring, Diagnostics and Maintenance giving a good user experience.
109.55 KB
10/31/2023
Pressure_ST800_ST700_FirmwareReleaseSet13_R511
122.35 KB
10/31/2023
HART DTMs for ST 800, ST 700, SMV800, STT850, STT650, STT750, STT700, ST 3000, and STT 250 products. Unzip the package and see the Release notes for more details
125.22 KB
9/15/2022
Pressure_ST800_ST700_FirmwareReleaseSet14_R511.1
118.56 KB
10/31/2023
White Paper detailing the materials selected and used in the construction of Honeywell pressure transmitters for process control systems in processing industries.
1.92 MB
6/8/2022
Name
Description
File Size
Date
Size
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