Quickly find clear, concise definitions that make complex topics easy to understand - so you can navigate our services, products, and solutions with confidence.
A unit of heat; the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit.
A device used to measure the amount of thermal energy transferred in a heating or cooling system, typically in chilled/hot water loops.
A component of the BTU meter that measures the volumetric flow rate of the fluid (usually water) in the system.
Measures the temperature of the supply and return water to calculate the temperature differential (ΔT).
The difference in temperature between the supply and return lines; used to calculate the energy transferred.
The amount of heat energy consumed, usually expressed in BTUs / KWhr.
Another term for BTU meter, especially in international contexts (e.g., Europe may use kWh instead of BTU).
The amount of water (or fluid) passing through the pipe over time, typically measured in gallons per minute (GPM), liters per minute (LPM), or cubic meters per hour.
A type of flow sensor used in BTU meters that measures flow rate using sound waves; it has no moving parts and offers high accuracy.
Uses magnetic fields to measure fluid velocity; suitable for conductive fluids like water.
A flow meter design where the sensor is inserted into the pipe, typically easier to install on existing systems.
A non-invasive flow meter that attaches externally to the pipe to measure flow ultrasonically.
A signal output from the BTU meter that can be used for remote monitoring, data logging, or integration with BMS/EMS systems.
The rate of heat energy transfer, usually expressed in BTU/hr or kW.
The cumulative thermal energy consumed over time, displayed on the BTU meter.
A device used to transfer heat between two fluids; the BTU meter measures energy across this component.
The temperature of the water entering the load (e.g., a fan coil or heat exchanger).
The temperature of the water leaving the load and returning to the system.
Ensuring the meter and its sensors provide accurate readings by comparing to known standards.
The process of setting up and verifying the correct operation of the BTU meter in a system.
Technology that automatically collects consumption data from utility meters without the need for manual readings.
A system that includes smart meters, communication networks, and data management systems to enable two-way communication between utilities and customers.
The period between two-meter readings used for generating a utility bill.
The total consumption recorded by a meter over time.
