Danfoss SonoSafe 10 DN20 Ultrasonic Heat Meter

Danfoss SonoSafe 10 DN20 Ultrasonic Heat Meter

• Danfoss SonoSafe 10 ultrasonic heat meter
• Body size DN20 (¾”), nominal flow rate Qn 2.5 m³/h
• Maximum flow rate qs 5 m³/h, minimum flow rate qi 25 l/h
• Body length (L) 130 mm, 1” threaded connection (G1A)
• Communication: Built-in wired M-Bus and optical interface (wM-Bus OMS module can be retrofitted)
• Application: heating; installation point: return line
• Temperature sensor: PT1000, 1.5 m cable
• MID approval: Denmark, accuracy class 2
• Pressure rating: PN16

Danfoss SonoSafe 10 Series

Danfoss SonoSafe 10 is a compact ultrasonic heat meter designed to measure heating energy in residential buildings.

The meter consists of a calculator unit, an ultrasonic flow sensor and a PT1000 temperature sensor pair with 1.5 m cables. In addition to the built-in M-Bus there is a free module slot, so a module can be retrofitted if communication needs change.

Key Features (manufacturer data)

• MID approved (DK-0200-MI004-034), accuracy class 2 (EN 1434)
• Built for heating measurement only
• Built-in wired M-Bus (EN 13757-3) and optical interface
• Retrofittable modules: wM-Bus (OMS), M-Bus + 2 pulse inputs, 2 pulse inputs or 2 pulse outputs
• Medium temperature 5–95 °C, temperature difference 3–90 K; pressure rating PN16
• Installation in any position; no straight pipe runs required upstream or downstream
• Protection class IP65
• 3.6 V lithium AA battery; 16+1 years according to the manufacturer

Applications

• Heat consumption metering for apartments and dwelling units
• Centrally heated apartment buildings and residential complexes
• Heat cost allocation and billing
• Offices and small commercial units

Why Danfoss SonoSafe 10?

Thanks to its long battery life and retrofittable communication modules, SonoSafe 10 is designed to be installed once and left untouched for many years; Danfoss’s experience in heating systems ensures reliable measurement.

Installation, Reading and Re-verification

Install the meter in the position and at the mounting point specified in its manual; a strainer upstream of the meter and an isolating valve before and after it (for easy replacement) are recommended. In Türkiye, Novus Energy also provides remote meter reading and heat cost allocation services after installation. Periodic re-verification requirements for heat meters depend on local regulations; see our re-verification and calibration page for details.

Other models of the same size: DN20 heat meters · All products of the brand: Danfoss · What is a heat meter and how to choose one?