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Energy Flow Meters
Energy Flow Meters Overview: Flowmeters that perform energy measurement consist of a flowmeter with integrated temperature measurement to measure both supply and return temperature and then calculate thermal energy in units of BTUs. In addition to providing direct BTU measurement, these flowmeters also can display liquid flow rate and process temperature. The temperature measurement is typically achieved via use of precision RTD elements while the liquid flow rate measurement can be done with an electromagnetic flowmeter, a turbine flowmeter, an ultrasonic flowmeter, or a variety of other flowmeter technologies.
SmartMeasurementTM offers Energy flow meters that employ ultrasonic and magnetic flow measurement technologies in order to provide users with a degree of flexibility in selecting the best product for their specific application. For non-intrusive energy measurement, the ALSONIC-EG provides highly accurate energy measurement for applications including treated water with low electrical conductivity and buildings where the air-conditioning can’t be turned off to install the meter. The ALSONIC-EG enables retrofitting of transducers under pressure with a clamp-on non-intrusive installation method. For applications where there are particulates or bubbles entrained in the fluid, the ALMAG-EG, which makes use of a Mag Meter to measure the liquid flow, is the instrument of choice. All SmartMeasurement BTU Flowmeters are available with optional Mbus, BACNET, MODBUS, and Profibus communication protocols.
Have Specific Questions About Energy Flow Meters? Contact the experts at Smart Measurement today
Hover mouse over icon for application notes.
| EG Family | ||||||||
| Technology | Model | Diameters | Flow Rate or Velocity | Accuracy | Temperature | Temperature Probes | Outputs | Special Features |
 Ultrasonic Energy - Industrial |
ALSONICEG | 1"-72" (6-1800mm) |
0.01 to 32 mps (2-6300 fpm) |
±1% flow ±2%energy |
-40 ~ 130 °F (-40 -266 °C) |
PT 100 RTD | M-BUS, MODBUS, RS485, GPRS and 4-20mA | 110-220 VAC, 8-36 VDC, various style transmitters |
 Magnatic-Energy |
ALMAG-EG |
½" -63" (15-1600mm) |
0.2-10 m/s (39 - 2000 fpm) |
±0.5% flow ±1%energy |
up to 180 °C | PT 100 RTD | 4-20mA, Hart, MODBUS | Response time up to 160ms |
 Energy Calculator |
ALFI-BTU with (ALVTN, or ALPADL flowmeters) | ½"-16" (8-400mm) |
0.2-10 m/s | ±1% flow ±2%energy |
up to 320 °C (ALVT) up to 100°C ALPADL | PT 100 RTD or PT 500 RTD or PT 1000 RTD |
RS485 module ( MODBUS ) |
Flowmeter inputs such as NPN or PNP pulse signals, frequency up to 10 KHz ( Max.). |
 Utrasonic Energy - Building Automation |
ALSONICBAEG | ½"-1 ½" (8-40mm) |
0.5 to 330 LPM (0.13-88 USGPM) |
±3% | 2 ~ 130°C (35 - 266°F) |
PT 1000 RTD | M-BUS, RS485,GPRS, pulse and 4-20mA | Battery powered (3.6V) - IP65 |
