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About BTU Meters - For Accurate Thermal Energy Measurement
BTU meters are designed to measure thermal energy usage in heating and cooling systems by combining flow measurement with temperature differential calculations. These instruments provide accurate monitoring of energy consumption in hydronic heating, chilled water, and HVAC applications.
The NCMB2E Energy Meter is a solution that help industrial, municipal, and commercial facilities monitor energy usage, optimize system performance, and maintain compliance with energy management standards.
Benefits of Using a Non-Contact Ultrasonic Flow Meter
Non-contact or clamp-on ultrasonic flow meters provide a reliable and efficient way to measure liquid flow without modifying the pipe or interrupting the process. These instruments are widely used in water, wastewater, HVAC, environmental, and industrial applications because they offer accurate measurements with minimal installation effort.
Non-Invasive Installation
No Process Interruption
Lower Installation and Maintenance Costs
Compatible with Many Pipe Materials
High Accuracy and Reliable Measurement
Ideal for Large or Difficult-to-Access Pipes
Portable and Flexible Monitoring
Integrated Data Logging and Outputs
Ideal for Energy and HVAC Monitoring
Safe for Corrosive or Sensitive Liquids
Universal clamp-on transducers for use with the NCMB2 Series ultrasonic flowmeter
Each flow meter requires a set of transducers, the Energy Model requires transducers plus a set of 3 wire RTDs
Transducers Options
Small Size Transducers W/ 15ft, 50ft or 100ft Cable/Adjustable Pipes ½” to 2”
Medium Size Transducers W/ 15ft, 50ft or 100ft Cable/ Adjustable Pipes 2” to 36”
Large Size Transducers W/ 15ft, 50ft or 100ft Cable//Adjustable Pipes 8” and Larger
RTDs for your Energy Flow Meter
RTD-3B-20 : Pair of 3 wire RTD 1000 Ohm , 20 ft of cable
RTD-3B-50 : Pair of 3 wire RTD 1000 Ohm , 50 ft of cable
RTD-3B-100 : Pair of 3 wire RTD 1000 Ohm , 100 ft of cable
Please review this product’s datasheet for more details or contact our sales department for assistance.
NCMB2 Specifications
Liquid Types: Most clean liquids or liquids containing small amounts of suspended solids or gas bubbles
Flow Accuracy Medium and Large Pipes: ± 0.5% ± 0 0.049 ft/s (0 015 m/s)
Small Pipes: 1 in (25 mm) and larger = ±1% ± 0 03 ft/s (0 009 m/s) 3/4 in (20 mm) and smaller = ±1% of full scale
Repeatability: 0.2% above 1.5 ft/s
Velocity Medium and Large Pipes: Up to 40 ft/s, depending on pipe and fluid
Small Pipes: Up to 20 ft/s, depending on pipe and fluid
Straight Run Requirements: 10 diameters upstream, 5 diameters downstream from the single elbow - typically for flow rates of 10 fps (3.048m/s)
Certification and Compliance: Review datasheet for more details
Transmitter Power Options: 24V DC/AC: 9…28V DC @ 8 W max or 20…26 AC 47…63 Hz @ 0 5 A max, 2 Amp slow-blow fuse, not field replaceable
Mains AC: 85…264V AC 47…63 Hz @ 24VA max 1 Amp slow-blow fuse, manually field replaceable
Display Keypad: 4-button navigation, keypad with tactile feedback; polyester film
Display: Flow rate / Total. 128 × 64 pixel LED backlit graphical display; adjustable brightness and timeout; polycarbonate window
Enclosure: NEMA Type 4X, IP67. Aluminum construction; painted; wall, panel or pipe mounting; stainless steel fasteners and mounting hardware; EPDM gasket
Ambient Temperature Range: –4…140° F (–20…60° C)
Storage Temperature Range: –40…176° F (–40…80° C)
Humidity: 0…85%, non-condensing
Configuration: Via optional keypad or configuration software; software available on USB drive or download
Units - Programmable: Velocity feet/second, meters/second
Volumetric total:
US Gallons, Million Gallons, Imperial Gallons, Million Imperial Gallons, Acre-Feet, Liters, Hectoliters, Cubic Meters, Cubic Feet, Oil Barrels (42 gallons), Fluid Barrels (31.5 gallons), Imperial Fluid Barrels (36 imperial gallons), Pounds (Kilograms) and custom units
Flow rate:
Acre Feet/Day, Liters/Second, Liters/Minute, Liters/Hour, Cubic Meters/Second, Cubic Meters/Minute, Cubic Meters/Hour, Cubic Feet/Minute, Cubic Feet/Minute, Cubic Feet/Hour, Gallons/Second, Gallons/Minute, Gallons/Hour, Million Gallons/Day, Imperial Gallons/Second, Imperial Gallons/Minute, Imperial Gallons/Hour, Million Imperial Gallons/Day, Oil Barrels/Day, Fluid Barrels/Day,
Imperial Fluid Barrels/Day and custom units
Energy total (Energy Meters):
British Thermal Unit (Btu), Thousand Btu, Millions Btu, Kilocalories, Mega calories, Kilowatt-hour, Megawatt hour, Kilojoules, Mega joules, Ton-hour (Refrigeration)
Heat/cooling rate (Energy Meters):
Btu/hour, Thousand Btu/hour, Millions Btu/hour, Ton (Refrigeration), Watts, Kilowatts, Megawatts, Kilojoules/hour, Mega joules/hour, Kilocalories/hour, Mega calories/hour
Temperature (energy meters): Fahrenheit, Celsius, Kelvin
