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EW773 Series Ultrasonic Hydronic Meters DN15-100

EW773 Series Ultrasonic Hydronic Meters DN15-100

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 temperature sensors...

Product Description

Honeywell Home 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 temperature 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 only. EW7731 models are suitable for energy metering in heating, cooling or combined systems.

Technical Properties

Approvals
  • Heating: MID DE-10-MI004-PTB013, class 2
  • Cooling: DE-16-M-PTB-0001
  • CE
Measuring process ultrasonic
Display functions LCD, 8-digit
Power source
  • Standard: - A-cell lithium battery 3.6 VDC with 11 year nominal lifetime
  • Optional: - D-cell lithium battery 3.6 VDC with 16 year nominal lifetime - 24 VAC mains power supply with integrated, replaceable backup battery - 230 VAC mains power supply with integrated, replaceable backup battery
Dynamic range

250:1

Features
  • Ultrasonic measuring principle
  • Dynamic range of 250:1 (qp:qi) in class 2
  • Detachable calculator unit with connection cable 1.5 m long and wall mounting plate for wall attachment
  • High battery Efficiency, A-cell: battery lifetime up to 11 years D-cell: battery lifetime up to 16 years
  • High long term stability, tested and verified by independent AGFW test
  • Insensitive to dirt
  • No moving parts in the flow
  • ZVEI optical interface
  • Optionally with integrated Radio OMS (Open Metering Standard), 868MHz
  • Remote reading with up to two add on plug and Play modules

Certifications and Awards

Related Material

Products

Product Type Medium
Connection
DN size
Maximum operating pressure
Media temp.
Nominal flow (qp)
Length
Interface
Interface type
EW7730A Ultrasonic hydronic meter for heating applications

EW7730A1200
heating water G 3/4 15 mm 16 bar 5 ... 130 oC 1.5 m3/h 110 mm Retrofittable (two slots)

EW7730A1400
heating water G 1 20 mm 16 bar 5 ... 130 oC 1.5 m3/h 130 mm Retrofittable (two slots)

EW7730A2000
heating water G 1 20 mm 16 bar 5 ... 130 oC 2.5 m3/h 130 mm Retrofittable (two slots)

EW7730A3600
heating water G 1 1/4 25 mm 16 bar 5 ... 150 oC 6 m3/h 260 mm Retrofittable (two slots)

EW7730A4000
heating water Flanges PN25 32 mm 25 bar 5 ... 150 oC 6 m3/h 260 mm Retrofittable (two slots)

EW7730A4600
heating water G 2 40 mm 16 bar 5 ... 150 oC 10 m3/h 300 mm Retrofittable (two slots)

EW7730A4800
heating water Flanges PN25 40 mm 25 bar 5 ... 150 oC 10 m3/h 300 mm Retrofittable (two slots)

EW7730A5200
heating water Flanges PN25 50 mm 25 bar 5 ... 150 oC 15 m3/h 270 mm Retrofittable (two slots)

EW7730A6000
heating water Flanges PN25 65 mm 25 bar 5 ... 150 oC 25 m3/h 300 mm Retrofittable (two slots)

EW7730A7000
heating water Flanges PN25 80 mm 25 bar 5 ... 150 oC 40 m3/h 300 mm Retrofittable (two slots)

EW7730A7800
heating water Flanges PN25 100 mm 25 bar 5 ... 150 oC 60 m3/h 360 mm Retrofittable (two slots)
EW7730F Ultrasonic hydronic meter for heating applications, with RF on board

EW7730F1200
heating water G 3/4 15 mm 16 bar 5 ... 130 oC 1.5 m3/h 110 mm RF Fixed

EW7730F2000
heating water G 1 20 mm 16 bar 5 ... 130 oC 2.5 m3/h 130 mm RF Fixed
EW7730M Ultrasonic hydronic meter for heating applications, with M-Bus module

EW7730M1200
heating water G 3/4 15 mm 16 bar 5 ... 130 oC 1.5 m3/h 110 mm M-Bus Retrofittable (factory installed)

EW7730M2000
heating water G 1 20 mm 16 bar 5 ... 130 oC 2.5 m3/h 130 mm M-Bus Retrofittable (factory installed)

EW7730M3600
heating water G 1 1/4 25 mm 16 bar 5 ... 150 oC 6 m3/h 260 mm M-Bus Retrofittable (factory installed)
EW7730K Ultrasonic hydronic meter for heating applications; with M-Bus and pulse input modules

EW7730K1200
heating water G 3/4 15 mm 16 bar 5 ... 130 oC 1.5 m3/h 110 mm M-Bus Retrofittable (two slots)

EW7730K2000
heating water G 1 20 mm 16 bar 5 ... 130 oC 2.5 m3/h 130 mm M-Bus + pulse in Retrofittable (factory installed)
EW7731A Ultrasonic hydronic meter for heating and cooling applications

EW7731A1200
heating or chilled water G 3/4 15 mm 16 bar 5 ... 105 oC 1.5 m3/h 110 mm Retrofittable (two slots)

EW7731A2000
heating or chilled water G 1 20 mm 16 bar 5 ... 105 oC 2.5 m3/h 130 mm Retrofittable (two slots)

EW7731A3600
heating or chilled water G 1 1/4 25 mm 16 bar 5 ... 105 oC 6 m3/h 260 mm Retrofittable (two slots)

EW7731A4000
heating or chilled water Flanges PN25 32 mm 25 bar 5 ... 105 oC 6 m3/h 260 mm Retrofittable (two slots)

EW7731A4600
heating or chilled water G 2 40 mm 16 bar 5 ... 105 oC 10 m3/h 300 mm Retrofittable (two slots)

EW7731A4800
heating or chilled water Flanges PN25 40 mm 25 bar 5 ... 105 oC 10 m3/h 300 mm Retrofittable (two slots)

EW7731A5200
heating or chilled water Flanges PN25 50 mm 25 bar 5 ... 105 oC 15 m3/h 270 mm Retrofittable (two slots)

EW7731A6000
heating or chilled water Flanges PN25 65 mm 25 bar 5 ... 105 oC 25 m3/h 300 mm Retrofittable (two slots)

EW7731A7000
heating or chilled water Flanges PN25 80 mm 25 bar 5 ... 105 oC 40 m3/h 300 mm Retrofittable (two slots)

EW7731A7800
heating or chilled water Flanges PN25 100 mm 25 bar 5 ... 105 oC 60 m3/h 360 mm Retrofittable (two slots)
EW7731F Ultrasonic hydronic meter for heating and cooling applications; with RF and two pulse inputs

EW7731F1200
heating or chilled water G 3/4 15 mm 16 bar 5 ... 105 oC 1.5 m3/h 110 mm RF Fixed

EW7731F2000
heating or chilled water G 1 20 mm 16 bar 5 ... 105 oC 2.5 m3/h 130 mm RF Fixed
EW7731M Ultrasonic hydronic meter for heating and cooling applications; with M-Bus module

EW7731M1200
heating or chilled water G 3/4 15 mm 16 bar 5 ... 105 oC 1.5 m3/h 110 mm M-Bus Retrofittable (one slot)

EW7731M2000
heating or chilled water G 1 20 mm 16 bar 5 ... 105 oC 2.5 m3/h 130 mm M-Bus Retrofittable (one slot)

EW7731M3600
heating or chilled water G 1 1/4 25 mm 16 bar 5 ... 105 oC 6 m3/h 260 mm M-Bus Retrofittable (one slot)

EW7731M4000
heating or chilled water Flanges PN25 32 mm 25 bar 5 ... 105 oC 6 m3/h 260 mm M-Bus Retrofittable (one slot)

EW7731M4800
heating or chilled water Flanges PN25 40 mm 25 bar 5 ... 105 oC 10 m3/h 300 mm M-Bus Retrofittable (one slot)

EW7731M5200
heating or chilled water Flanges PN25 50 mm 25 bar 5 ... 105 oC 15 m3/h 270 mm M-Bus Retrofittable (one slot)

EW7731M6000
heating or chilled water Flanges PN25 65 mm 25 bar 5 ... 105 oC 25 m3/h 300 mm M-Bus Retrofittable (one slot)

EW7731M7000
heating or chilled water Flanges PN25 80 mm 25 bar 5 ... 105 oC 40 m3/h 300 mm M-Bus Retrofittable (one slot)

EW7731M7800
heating or chilled water Flanges PN25 100 mm 25 bar 5 ... 105 oC 60 m3/h 360 mm M-Bus Retrofittable (one slot)

Accessories and replacement parts

Set of two union nuts, sealings and externally threaded brass tailpieces (one pack per meter required)

Image Description Product Type Downloads
Set of two union nuts for DN15, thread 1/2" EWA1500035  
Set of two union nuts for DN20, thread 3/4" EWA1500042  
Set of two union nuts for DN25, thread 1" EWA1500062  
Set of two union nuts for DN40, thread 1 1/2" EWA1500072  

Set of union nut, sealing and Sanpress red bronze crimp fitting (two packs per meter required)

Image Description Product Type Downloads
Sanpress red bronze crimp fitting with sealing, DN15 VA7404A015  
Sanpress red bronze crimp fitting with sealing, DN15 VA7404A018  
Sanpress red bronze crimp fitting with sealing, DN20 VA7404A020  
Sanpress red bronze crimp fitting with sealing, DN25 VA7404A025  

Set of union nut, sealing and Mapress stainless steel crimp fitting (two packs per meter required)

Image Description Product Type Downloads
Union nut with Mapress-fitting for external threads, DN15 VA7403A015  
Union nut with Mapress-fitting for external threads, DN15 VA7403A018  
Union nut with Mapress-fitting for external threads, DN20 VA7403A020  
Union nut with Mapress-fitting for external threads, DN25 VA7403A025  

Set of union nut, sealing and internally threaded red bronze tailpiece (two packs per meter required)

Image Description Product Type Downloads
Union nut, sealing and internally threades red bronze tailpiece, DN15 VA7405A015  
Union nut, sealing and internally threades red bronze tailpiece, DN20 VA7405A020  
Union nut, sealing and internally threades red bronze tailpiece, DN25 VA7405A025  

Temperature sensor installation kit (bulk pack of 20pcs)

Image Description Product Type Downloads
Temperature sensor installation kit, brass, max. 130C EWA3001303  
Temperature sensor installation kit, plastic, max. 90C EWA3001305  

Ball valve with connection for supply temperature probe

Image Description Product Type Downloads
For DN15, G 1/2" internal threads EWA087HY004  
For DN20, G 3/4" internal threads EWA087HY005  
For DN25, 1" internal threads EWA087HY006  

Tailpiece for connection of supply temperature sensor

Image Description Product Type Downloads
R 1/2" external thread, M10x1 sensor thread EWA087HY003  
G 1/4" external thread, M10x1 sensor thread EWA354830  

Brass immersion pockets (MID approved)

Image Description Product Type Downloads
35mm, for DN25...32 EWA3002684  

Modules

Image Description Product Type Downloads
M-Bus communication module (single pack) EWA3022071  
M-Bus communication module (bulk pack of 72pcs) EWA3023125  
Pulse output module with two outputs EWA3022073  
Pulse input module with two inputs (single pack) EWA3022074  
Pulse input module with two inputs (bulk pack of 72pcs) EWA3023130  
Combined pulse input/output module EWA3022075  
RS232 interface module with cable EWA3028129  
RS485 interface module EWA3022101  
Analogue 4 - 20mA module EWA3022106  

Power supply

Image Description Product Type Downloads
A-cell battery 3.6V DC (11 year lifetime) as replacement for standard battery EWA3022102  
D-cell battery 3.6V DC (16 year lifetime) EWA3022103  
Mains supply unit 230V AC EWA3022076  
Mains supply unit 24V AC EWA3022079  
Replacement backup battery for mains supply units EWA3022097  

Calculator mounts

Image Description Product Type Downloads
Calculator wall mount (single pack) EWA3007090  
Calculator wall mount (bulk pack of 20pcs) EWA3007091  
Calculator angle mount 105 EWA3026160  
Calculator Distance mount EWA54300011  
Calculator DIN rail mount EWA54300012  

Bluetooth optohead

Image Description Product Type Downloads
Bluetooth optohead, For all EW773 EWA3001799  

IzarSet Expert dongle

Image Description Product Type Downloads
IzarSet expert dongle for EW773 EWP3021322  

Calibration certificates

Image Description Product Type Downloads
Calibration certificate for up to five meters EWA3003095A  
Calibration certificate for six to twenty meters EWA3003095B  
Calibration certificate for more than 20 meters EWA3003095C  

Modules and Accessories for EW773 (type 773) - former generation, built till end of 2010

Image Description Product Type Downloads
M-Bus communication module (for EW773xA types) EWA54200001  
Pulse output module (2 outputs) EWA54200002  
Pulse input module (2 inputs) EWA54200003  
Mains power supply unit 230V AC EWA54200004  
Mains power supply unit 24V AC EWA54200005