• Ultrasonic Hydronic Meters

Ultrasonic Hydronic Meters

Energy Calculator
The energy calculator records flow rate and temperature and
calculates logs and displays data.
Model : EW773 Series

EW773 Series ultrasonic meters consist of:
• Electronic energy calculator with power supply and fixed or
screwed cable connection to ultrasonic flow sensor
• Factory fitted supply and return temperature sensors
• Up to two communication modules (certain types only)
• Ultrasonic flow sensor with external threads according to
ISO228 (DN15…DN40) or flanges PN25 (DN25…DN100)
• Approval for ultrasonic meter with dynamic range of
250:1 (qp:qi) in class 2
• High battery efficiency, battery lifetime 11 years
• High long term stability, tested and verified by indepen-
dent AGFW test
• Insensitive to dirt
• Optionally with integrated radio, Open Metering Stan-
dard, 868MHz
• Remote reading (AMR) with up to two add on plug & play
modules
Honeywell EW773 Series ultrasonic meters are static compact
heat or chilled water meters with electronic measurement
based on the ultrasonic principle, consisting of an electronic energy calculator, an ultrasonic flow sensor and two tempera-ture sensors.
They are used for metering of hydronic heating and/or cooling
energy in hydronic systems based on volume, supply and
return temperature.
EW7730 models are suitable for energy metering in heating
systems (‘heat metering’).
EW7731 models are suitable for energy metering in heating,
cooling or combined systems.

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