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 Equipment
- CSA 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 Conditions
- EN 50470-3: Particular requirements – Static meters for Active Energy
Gas Meters
- EN 1359: Diaphragm gas meters
- EN 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
