Sub-Meter Testing

End-to-end testing & certification solutions helping you verify the performance and accuracy of sub-meters.

Sub-meters are used by building owners and utility companies to divide utility costs based on the usage rates of tenants. Sub-meters operate inside the main meter system and measure individual consumption of utilities in comparison to the overall amount used.

We help you verify the accuracy of sub-meters to ensure that they are performing as intended as both an individual piece of equipment and as a component of the larger metering system. Our testing solutions are able to evaluate sub-meters for environmental hardiness, safety and measurement accuracy to prove consistent functionality in the field.

Our global testing capabilities and unbiased third-party verification help to guarantee acceptable performance and accurate billing cycles. With advanced laboratory measurement equipment and experienced technicians, we provide internationally trusted, customized testing plans to ensure sub-meter performance and acceptance into global markets.

Sub-Meter Testing Capabilities:

United States

Electric Meters

• ANSI C12.1: Code for Electricity Metering
• ANSI C12.10: Physical Aspects of Watthour Meters – Safety Standard
• ANSI C12.20: 0.2 and 0.5 Accuracy Classes
• ANSI C37.20.1:2002: Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear
• ANSI C37.90.1:1989: Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power Apparatus
• UL 916: Energy management equipment and associated sensing devices rated 600 volts or less
• UL 2735: Electrical safety of electric utility (revenue) meters rated up to 600 V

Gas Meters

• ANSI B109.1: Diaphragm Type Gas Displacement Meters – under 500 Cubic Feet Per Hour Capacity
• ANSI B109.2: Diaphragm-Type Gas Displacement Meters – 500 Cubic Feet Per Hour Capacity and Over
• ANSI B109.3: Rotary-Type Gas Displacement Meters
• ANSI B109.4: Self-Operated Diaphragm-Type Natural Gas Service Regulators
• UL 60079: Equipment Intended for Explosive Atmospheres

Water Meters

• AWWA C700-09: Cold Water Meters – Displacement Type, Bronze Main Case
• AWWA C710-15: Cold Water Meters – Displacement Type, Plastic Main Case
• UL 1951: Equipment Connected to or Used with Plumbing in Commercial or Household Locations

All Meters

• UL 61010-1: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – General Requirements
• UL 61010-2-30: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Particular Requirements for Testing and Measuring Circuits

Canada

Electric Meters

• LMB-EG-07: Specifications for Approval of Type of Electricity Meters, Instrument Transformers and Auxiliary Devices
• UL 2735C: Electrical Safety of Electric Utility (revenue) Meters Rated up to 600 V

Gas Meters

• CSA 22.2 No. 60079: Equipment Intended for Explosive Atmospheres

Water Meters

• CSA 22.2 No. 14: Industrial Control EquipmentCSA 22.2 No. 68: Motor-operated Appliances (household and commercial)

All Meters

• CSA 22.2 No. 61010-1: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – General Requirements
• CSA 22.2 No. 61010-2-30: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Particular Requirements for Testing and Measuring Circuits

Europe

Electric Meters

• EN 50470-1: General Requirements, Tests and Test ConditionsEN 50470-3: Particular requirements – Static meters for Active Energy

Gas Meters

• EN 1359: Diaphragm gas metersEN 12405-1: Conversion Devices – Volume Conversion
• EN 1248: Foundry Machinery – Safety requirements for Abrasive Blasting Equipment
• EN 12261: Measuring Conditions, Requirements and Tests for the Construction, Performance and Safety of Class 1,0 Axial and Radial Turbine Gas Meters
• EN 12480: Rotary Displacement Gas Meters
• EN 14236: Ultrasonic Domestic Gas Meters

Water Meters

• EN 14154: General Requirements for Water Meters

All Meters

• EN 61010-1: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – General Requirements
• EN 61010-2-30: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Particular Requirements for Testing and Measuring Circuits

Mexico

Electric Meters

• CFE G0100-05: Electrical Energy Measurement System in Cabinet
• CFE GWH00-09: Advanced Infrastructure and Interactive System of Measurement of Electrical Energy
• CFE GWH00-34: Single Phase and Electronic Meters with Cutting and Reconnection for Supplies in Low Tension

International

Electric Meters

• IEC 62052-11: General Requirements, Tests and Test Conditions for Electricity Metering Equipment
• IEC 62053-21: Particular Requirements for Static Meters for Active Energy – Classes 1 and 2
• IEC 62053-22: Particular Requirements for Static Meters for Active Energy – Classes 0,2 S and 0,5 S
• IEC 62053-23: Particular Requirements for Static Meters for Reactive Energy – Classes 2 and 3

Gas Meters

• OIML R137-1: Metrological and Technical Requirements for Gas Meters
• OIML R137-2: Metrological Controls and Performance Tests for Gas Meters
• IEC 1248: Transformers and Inductors for use in Electronic and Telecommunication Equipment
• IEC 14236: Plastics Pipes and Fittings — Mechanical-Joint Compression Fittings for use with Polyethylene Pressure Pipes in Water Supply Systems

Water Meters

• OIML R49-1: Water Meters for Cold Potable Water – Metrological and Technical Requirements
• ISO 4064: Water Meters for Cold Potable Water and Hot Water – Metrological and Technical Requirements
• OIML R49-2: Water Meters for Cold Potable Water and Hot Water – Test Methods

All Meters

• IEC 61010-1: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – General Requirements
• IEC 61010-2-030: Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Particular Requirements for Testing and Measuring Circuits

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