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Hydronic Meters
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EW773 Series Ultrasonic Hydronic Meters
Static compact hydronic meter with electronic measurement based on the ultrasonic principle,
consisting of electronic energy integrator, ultrasonic volume measuring component and temperature
sensors.
Metering of hydronic heating and/or cooling energy in hydronic systems based on volume, supply and
return temperature.
Approvals First approval in Europe for ultrasonic heat meter with dynamic range
of qi/qp m3 /h 1:250 in class 2 (qp 1.5/2.5/6.0 m3 /h)
MID approval
Features Complete dynamic range 1:1,500
Can be used for heating (EW7730), cooling or both (EW7731)
No calming leg required on inlet or outlet for sizes up to qp6 m 3 /h
Remote reading via M-bus, RF, RS232 or optical interface
Optional plug and play modules
Medium type water
Measuring method ultrasonic
Display functions LCD, 7-digit
Media temp. 5 ... 130 o C
Power source Standard: 3V lithium battery
Optional: 3.6V lithium battery, 230Vac or 24Vac
EW7730A Ultrasonic hydronic meter for heating applications
Nominal flow (qp) (m 3 /h) DN size (mm) Length (mm) Port diameter (inch) Max. operating pressure (bar) Interface Function Type
0,6 15 110 G 3/4 B 16 none (retrofittable) none (retrofittable) EW7730A0100
1,0 15 110 G 3/4 B 16 none (retrofittable) none (retrofittable) EW7730A0600
1,5 15 110 G 3/4 B 16 none (retrofittable) none (retrofittable) EW7730A1200
2,5 20 130 G 1 B 16 none (retrofittable) none (retrofittable) EW7730A2000
3,5 25 260 G 1 1/4 B 16 none (retrofittable) none (retrofittable) EW7730A2800
3,5 25 260 Flanges 25 none (retrofittable) none (retrofittable) EW7730A3000
6,0 25 260 G 1 1/4 B 16 none (retrofittable) none (retrofittable) EW7730A3600
6,0 32 260 Flanges 25 none (retrofittable) none (retrofittable) EW7730A4000
10,0 40 300 Flanges 25 none (retrofittable) none (retrofittable) EW7730A4800
15,0 50 270 Flanges 25 none (retrofittable) none (retrofittable) EW7730A5200
25,0 65 300 Flanges 25 none (retrofittable) none (retrofittable) EW7730A6000
40,0 80 300 Flanges 25 none (retrofittable) none (retrofittable) EW7730A7000
EW7730M Ultrasonic hydronic meter for heating applications; with M-Bus module
Nominal flow (qp) (m 3 /h) DN size (mm) Length (mm) Port diameter (inch) Max. operating pressure (bar) Interface Function Type
0,6 15 110 G 3/4 B 16 M-Bus none (retrofittable) EW7730M0100
1,0 15 110 G 3/4 B 16 M-Bus none (retrofittable) EW7730M0600
1,5 15 110 G 3/4 B 16 M-Bus none (retrofittable) EW7730M1200
2,5 20 130 G 1 B 16 M-Bus none (retrofittable) EW7730M2000
3,5 25 260 G 1 1/4 B 16 M-Bus none (retrofittable) EW7730M2800
3,5 25 260 Flanges 25 M-Bus none (retrofittable) EW7730M3000
6,0 25 260 G 1 1/4 B 16 M-Bus none (retrofittable) EW7730M3600
6,0 32 260 Flanges 25 M-Bus none (retrofittable) EW7730M4000
10,0 40 300 Flanges 25 M-Bus none (retrofittable) EW7730M4800
15,0 50 270 Flanges 25 M-Bus none (retrofittable) EW7730M5200
25,0 65 300 Flanges 25 M-Bus none (retrofittable) EW7730M6000
40,0 80 300 Flanges 25 M-Bus none (retrofittable) EW7730M7000
EW7730K Ultrasonic hydronic meter for heating applications; with M-Bus and pulse input modules
Nominal flow (qp) (m 3 /h) DN size (mm) Length (mm) Port diameter (inch) Max. operating pressure (bar) Interface Function Type
0,6 15 110 G 3/4 B 16 M-Bus pulse input (2) EW7730K0100
1,0 15 110 G 3/4 B 16 M-Bus pulse input (2) EW7730K0600
1,5 15 110 G 3/4 B 16 M-Bus pulse input (2) EW7730K1200
http://products.ecc.emea.honeywell.com/europe