Danfoss SonoMeter 31 Operating guide

Installation & User Guide

SonoMeter 31

Ultrasonic energy meter
for heating and cooling applications

www.danfoss.com

Installation & User Guide SonoMeter 31

2 | © Danfoss | DHS-SRMT / PL | 2018.08 VI.SH.O2.02

Installation & User Guide SonoMeter 31

1. Installation

1.1. Preparation

Only qualified personnel may install the equipment, following the requirements listed in this document.
More detailed instruction can be found on www.heating.danfoss.com.

Note! This product is approved for ambient temperature between 5-55° C, but to ensure optimal conditions for
battery it is recommended to install Calculator at max. 45° C. Avoid installation stress from pipes and fittings.
Flush the system.

1.2. Identification of installation: Return/Supply pipe installation and flow direction

Flow direction

Return pipe installation

Flow direction

Supply pipe installation

VI.SH.O2.02 © Danfoss | DHS-SRMT / PL | 2018.08 | 3

Installation & User Guide SonoMeter 31

1.3. Mounting of flow sensor

Pipe position: Avoid positions where

air can be collected.

Rotation in pipe axis: Flow sensor should be angled
in 45 to 315° to avoid air collection in flow sensor.

Inlet/outlet conditions

In order to maximize performance it is necessary to have straight inlet and outlet flow conditions before
and after the flow sensor: 5 × DN on inlet and 3 × DN on outlet of flow sensor.

5 × DN

flow

3 × DN

1.4. Mounting and sealing of calculator

On the wall: Panel mounting on standard DIN-rail:

4 | © Danfoss | DHS-SRMT / PL | 2018.08 VI.SH.O2.02