Terms of use

Website identity

CurryControls.com is independently registered, maintained, and operated by Eric Sullivan in his individual capacity.

The website currently published at CurryControls.com contains new technical and project content managed and published by Eric Sullivan as an independent technical knowledge and project resource. The current website is not presented as, and should not be understood to be, the former website of Curry Controls Company or a continuation of that company's website or business.

CurryControls.com publishes general technical reference information about control systems, automation, instrumentation, and water and wastewater systems. It does not sell engineering services, and it is not the website of a systems integration company.

Ownership, Registration and Non-Affiliation

CurryControls.com is independently registered, maintained, and operated by Eric Sullivan in his individual capacity.

The prior registration of CurryControls.com expired, completed the domain deletion process, and became available for new registration. Eric Sullivan independently registered CurryControls.com in 2025 in his individual capacity. The current registration is a new registration and was not transferred to Eric Sullivan by Curry Controls Company, Revere Control Systems, Inc., S.J. Electro Systems, LLC, or General Control Systems, Inc.

The website currently published at CurryControls.com contains new technical and project content managed and published by Eric Sullivan as an independent technical knowledge and project resource. The current website is not presented as, and should not be understood to be, the former website of Curry Controls Company or a continuation of that company's website or business.

Curry Controls Company was acquired by Revere Control Systems, Inc. in 2021.

Eric Sullivan was formerly employed by Curry Controls Company, and his employment with that company ended in 2021. References on CurryControls.com to Curry Controls Company or to Eric Sullivan's work with that company are historical in nature and do not mean that CurryControls.com is operated by or on behalf of Curry Controls Company.

CurryControls.com is not owned, operated, sponsored, endorsed, authorized, or maintained by Curry Controls Company, Revere Control Systems, Inc., S.J. Electro Systems, LLC, or General Control Systems, Inc.

CurryControls.com is not the official website, successor, continuation, or current operating business of Curry Controls Company, Revere Control Systems, Inc., or S.J. Electro Systems, LLC.

Eric Sullivan is currently employed by General Control Systems, Inc. His employment with General Control Systems, Inc. is separate from CurryControls.com. CurryControls.com is not owned, operated, sponsored, endorsed, authorized, reviewed, or published by General Control Systems, Inc., and nothing on CurryControls.com is published on behalf of General Control Systems, Inc.

General Control Systems, Inc. is not affiliated with, and is not a successor to, Curry Controls Company, Revere Control Systems, Inc., or S.J. Electro Systems, LLC.

References to Curry Controls Company, Revere Control Systems, Inc., S.J. Electro Systems, LLC, General Control Systems, Inc., manufacturers, products, software platforms, standards organizations, or other organizations are provided for identification, historical context, technical discussion, or informational purposes and do not imply sponsorship, endorsement, authorization, or affiliation unless expressly stated.

Use of CurryControls.com as the domain name should not be understood as a representation that the current website is operated by, affiliated with, sponsored by, endorsed by, or authorized by Curry Controls Company, Revere Control Systems, Inc., S.J. Electro Systems, LLC, or General Control Systems, Inc.

This statement is also published on its own page.

Informational purpose

Content on CurryControls.com is general technical reference information provided for educational and reference purposes only. It is not engineering advice for a specific installation. All information must be independently verified against current codes, standards, manufacturer documentation, project requirements, and qualified professional judgment before it is relied upon or applied.

The full limits of use are set out in the Information & Calculator Disclaimer, which forms part of these terms.

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.

Nothing on this site has been reviewed against your installation, your equipment, your process, or the conditions at your site. A qualified person who knows those things has to make the decision.

User verification

You are responsible for independently verifying all information obtained from CurryControls.com before relying upon or applying it, against current codes, regulations, adopted standards, manufacturer documentation, project drawings and specifications, equipment ratings, site conditions, the requirements of the Authority Having Jurisdiction, owner and utility standards, employer procedures, and qualified engineering or professional judgment.

All information and calculations must be independently verified by the user before being relied upon or applied to actual equipment, systems, designs, installations, programs, processes, or projects.

Calculators

Calculators on CurryControls.com are reference, educational, estimating, and checking aids only. Results may contain assumptions, approximations, errors, or omissions and must be independently verified by the user before use against applicable codes, standards, manufacturer requirements, project requirements, and qualified professional judgment. Do not rely on a calculator result as the sole basis for design, equipment selection, programming, construction, safety, operation, or code compliance.

Every calculator on this site shows its formula, its assumptions, and its arithmetic so a result can be reproduced and checked. A result is a calculated reference result, never a determination that anything is correct, approved, compliant, or safe. Where a calculation affects safety, code compliance, regulatory compliance, equipment protection, engineering design, or process operation, the result should be independently reviewed by a qualified person familiar with the specific application.

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.

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.

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.

Manufacturer information

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.

Product, company, and standard names belong to their respective owners and are used here for identification only.

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.

Personal projects

These are personal projects of Eric Sullivan. Their appearance on CurryControls.com does not indicate that they are products, services, publications, or projects of Curry Controls Company, Revere Control Systems, Inc., S.J. Electro Systems, LLC, or General Control Systems, Inc.

No project should be understood to be available unless its stated status says so. Project descriptions describe the direction of development, not a statement that any feature is complete.

Intellectual property

The original text, calculators, diagrams, and software tools written for CurryControls.com are published by Eric Sullivan. You may read, link to, quote with attribution, and use them for your own reference, subject to the verification requirement above. Third-party trademarks, manufacturer and product names, standards and their content, quotations, open-source components, images, and licensed materials remain the property of their respective owners and appear here for identification, reference, or under their own terms. Nothing on this site is a claim to any third party's intellectual property.

Limitation of liability

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.

The content, calculators, and tables are provided as they are, without warranty of any kind. Reasonable care goes into accuracy, and mistakes still happen. If you find one, say so and it will be corrected.

Changes to the website

The website, its content, its calculators, and these terms may change at any time without notice. The date at the top of this page reflects the last revision of the terms. Continued use of the site after a change is use under the changed terms.

Contact

This page contacts Eric Sullivan directly regarding CurryControls.com and his personal projects.

The telephone number and contact information displayed on CurryControls.com belong to Eric Sullivan and are not contact information for Curry Controls Company, Revere Control Systems, Inc., S.J. Electro Systems, LLC, or General Control Systems, Inc.

Call 863-698-8266 or use the contact page.