The Barton Chart Recorder is an industry-proven instrument engineered for accurate and reliable measurement and recording of pressure, differential pressure, and temperature across a wide range of industrial applications. Designed for rugged field service, Barton chart recorders provide dependable performance in oil & gas, petrochemical, process, power generation, and utility installations.

Differential pressure (DP) models incorporate Barton’s rupture-proof bellows Differential Pressure Unit (DPU), featuring advanced overrange protection and pulsation dampening capabilities on selected models for enhanced operational stability and safety.

Technical Specifications

Enclosure / Case

• Material : Rugged lightweight die-cast aluminum

• Finish : Polyurethane electrostatic powder coating

• Corrosion Resistance : High resistance to weathering, scratches, salt spray, and industrial fumes

• Door Hinge : Aircraft-grade Type 302 stainless steel

• Gasket Material : Closed-cell neoprene, resistant to oils, solvents, and fluid absorption

• Optional Versions :

  • Stainless steel enclosure (“S” version)

  • Offshore corrosion-resistant coating for severe marine environments

Chart Drive System

• Type :

  • Battery-operated

  • Spring-wound mechanical drive

• Chart Speeds : Multiple selectable recording speeds available

• Interchangeability : All chart drives are fully interchangeable

• Chart Locking : Positive-lock chart hub design for secure installation

Recording Charts

• Chart Material : Premium “woodfree” low-shrinkage paper

• Performance :

  • Minimizes eccentric and elliptical recording errors

  • Maintains dimensional stability for accurate readings

• Packaging :

  • Shrink-wrapped for factory size retention

  • Re-sealable storage bag included after opening

Recording Mechanism

• Construction : Stainless steel throughout for extended service life

• Pen Assembly :

  • Heavy-duty pen mount

  • Ball pivot pen shafts for low friction movement

• Calibration :

  • Adjustable linkage system

  • Micrometer calibration adjustments

  • Screwdriver-access adjustment points

• Pen Type : Disposable ink pens standard

Pressure Measuring Elements

Models 202E, 242E, and J8A

• Element Type : Precision-wound helical pressure element

• Pressure Range :

  • Vacuum : 0–30 inHg vacuum

  • Pressure : Up to 30,000 psi (2,068 bar)

• Available Materials : Multiple alloy options available

Model 202N

• Element Material : K-Monel

• Pressure Range :

  • 0–250 psi (17 bar)

  • Up to 6,000 psi (414 bar)

Process Connections

• Standard Connection :

  • 1/4 in. NPT for ranges below 10,000 psi (689 bar)

• High Pressure Connection :

  • Aminco 9/16–18 female fitting

  • Compatible with 1/4 in. ODT tubing

Differential Pressure Unit (DPU)

• Type : Rupture-proof bellows design

• Features :

  • Overrange protection

  • Pulsation dampening (selected models)

  • High sensitivity and repeatability

Thermal System Specifications

The thermal measurement system consists of:

• Bourdon tube

• Stainless steel armored capillary

• Bendable extension bulb

• Stainless steel wetted components

Thermal System Classes

Class V (Mercury Fill)

• Bulb Diameter : 11/16 in. OD

• Temperature Range :

  • -40°F to 600°F (-40°C to 315°C)

Class I (Hydrocarbon Fill)

• Bulb Diameter : 3/8 in. OD

Fill Materials & Temperature Ranges

Compensation Types

• Class VA : Fully compensated

• Class VB : Case compensated

• Class IA : Fully compensated

• Class IB : Case compensated

Additional Requirements

• Minimum span : Greater than 50°F (27°C)

• Maximum temperature limit : Above 95°F (35°C)

Accuracy

• Accuracy : ±1.0% Full Scale (F.S.)

Capillary System

• Standard Length : 10 ft. stainless steel armored capillary

• Optional Lengths : Available upon request

Key Features

• Reliable continuous recording performance

• Rugged industrial construction

• Corrosion-resistant enclosure options

• High-accuracy pressure and temperature measurement

• Easy calibration and maintenance

• Long service life in harsh operating environments

• Suitable for offshore and hazardous industrial applications