Information & Calculator Disclaimer

General educational and reference purposes only

Everything provided on CurryControls.com—including articles, technical explanations, calculations, calculators, formulas, reference tables, diagrams, drawings, examples, software tools, troubleshooting procedures, programming examples, equipment information, and other materials—is provided for general educational and reference purposes only.

Reasonable efforts may be made to provide useful and accurate information; however, CurryControls.com and Eric Sullivan make no representation or guarantee that any information, calculation, result, recommendation, example, reference, or software output is accurate, complete, current, error-free, or suitable for any particular application.

Technical information can change as:

• Equipment changes
• Software changes
• Firmware changes
• Codes change
• Standards change
• Regulations change
• Manufacturer requirements change
• Accepted engineering practices change
• Site conditions differ
• Project requirements differ

USER VERIFICATION REQUIRED

The user is responsible for independently verifying all information obtained from CurryControls.com before relying upon or applying it.

This includes verification against, as applicable:

• Current codes
• Current regulations
• Current adopted standards
• Manufacturer manuals
• Manufacturer technical documentation
• Current software documentation
• Current firmware documentation
• Project drawings
• Project specifications
• Equipment ratings
• Site conditions
• Authority Having Jurisdiction requirements
• Owner standards
• Utility standards
• Employer procedures
• Qualified engineering or professional judgment

Information from CurryControls.com should not be used as the sole basis for:

• Engineering
• Design
• Programming
• Equipment selection
• Electrical sizing
• Instrument sizing
• Network design
• Panel design
• System configuration
• Installation
• Construction
• Commissioning
• Safety decisions
• Regulatory compliance
• Code compliance
• Equipment operation
• Process operation

CALCULATORS

Calculators on CurryControls.com are intended only as:

• Reference aids
• Educational aids
• Estimating aids
• Checking aids

Calculator results may be affected by:

• Incorrect user input
• Simplified assumptions
• Rounding
• Unit conversion
• Approximation
• Formula limitations
• Software defects
• Missing design conditions
• Incorrect interpretation
• Changes in codes
• Changes in standards
• Changes in manufacturer requirements

Every calculator result must be independently verified by the user before it is relied upon.

Do not use a CurryControls.com calculator as the sole basis for:

• Conductor sizing
• Conduit sizing
• Circuit protection
• SCCR determination
• Transformer sizing
• Power-supply sizing
• Panel design
• Thermal design
• Instrument selection
• Instrument sizing
• Network design
• Fiber design
• Radio design
• Process calculations
• Equipment protection
• Safety calculations
• Code compliance
• Regulatory compliance
• Equipment operation

Where a calculation affects:

• Safety
• Code compliance
• Regulatory compliance
• Equipment protection
• Engineering design
• Process operation

the result should be independently reviewed by a qualified person familiar with the specific application.

REFERENCE TABLES

Reference data may become outdated or may not correspond to the edition adopted for a specific jurisdiction or project. Verify all values against the applicable official publication and current manufacturer documentation.

PROGRAMMING EXAMPLES

This example is provided for educational and reference purposes. Actual behavior may vary depending on manufacturer, hardware, software version, firmware version, configuration, communications architecture, existing program logic, process requirements, and safety requirements.

Review, test, and independently validate all logic before placing it into service.

No programming example on CurryControls.com should be assumed safe or appropriate for a specific process or installation without project-specific review.

TROUBLESHOOTING INFORMATION

The conditions and diagnostic procedures described here represent possible causes and troubleshooting approaches. They do not establish that a particular component, condition, or configuration is the cause of a specific problem.

Evaluate the complete system and verify all actions against applicable documentation, site conditions, safety procedures, and qualified professional judgment.

CODES AND STANDARDS

References to codes and standards are provided for general informational purposes. Requirements may vary by edition, jurisdiction, application, and Authority Having Jurisdiction.

Always consult the official current published document and determine the edition applicable to the specific project or installation.

CurryControls.com does not determine code compliance and is not an Authority Having Jurisdiction.

MANUFACTURERS, PRODUCTS, AND ORGANIZATIONS

References to manufacturers, products, model numbers, software platforms, technical specifications, companies, standards organizations, or other organizations are provided for informational purposes and do not imply sponsorship, endorsement, authorization, or affiliation unless expressly stated.

Manufacturer specifications must be independently verified against current manufacturer documentation.

SAFETY

Industrial electrical, automation, mechanical, process-control, and communications systems can involve hazards that may result in:

• Equipment damage
• Process failure
• Environmental consequences
• Serious injury
• Death

Only appropriately qualified personnel should perform work on industrial equipment.

Users are responsible for following applicable:

• Electrical safety procedures
• Lockout/tagout procedures
• Arc-flash requirements
• Process safety requirements
• Manufacturer instructions
• Employer safety programs
• Site procedures
• Codes
• Regulations

Nothing on CurryControls.com replaces:

• Appropriate training
• Qualified supervision
• Engineering review
• Manufacturer requirements
• Established safety procedures

EXTERNAL LINKS

Links to third-party websites are provided for convenience and reference. CurryControls.com does not control third-party content and does not guarantee its accuracy, availability, security, or suitability.

NO PROFESSIONAL RELATIONSHIP

Use of CurryControls.com, submission of a contact form, use of a calculator, or communication through the website does not by itself create an engineer-client, consultant-client, contractor-client, attorney-client, fiduciary, or other professional relationship.

USE AT YOUR OWN RISK

Use of CurryControls.com and reliance upon information or tools provided on the site is at the user's own risk.

To the fullest extent permitted by law, CurryControls.com, Eric Sullivan, and contributors disclaim responsibility and liability for losses, damages, injuries, equipment damage, system failures, process failures, business interruption, data loss, programming errors, regulatory consequences, or other damages arising from the use of or reliance upon information, calculations, examples, software tools, or other materials provided through the website.

Always independently verify information before use.