Ultrasonic volume measuring meter
US ECHO II
Product categories
Ultrasonic volume measuring meter for hot water up to 130 °C
Heat / Cooling
Ultrasonic
Smart Building
Your benefits
- Robust, high grade wear resistant materials:
Excellent measuring stability and reliability - Universal applicable with diverse calculators:
Meets various requirements also with regard to interfaces - Integrated intelligence (status and warning messages):
Simple and quick on-site troubleshooting
Applications
- As a replacement for mechanical impeller heat meters
- Metering of heat and/or cooling consumption in building management
Options
- Pulser with 5 m or 9 m cable
Downloads
Properties
- Nominal diameters from DN 15 up to DN 50
- Nominal flow rates from qp 0,6 up to qp 15
- Lower pressure loss
- No moving parts
- Maximum operating pressure PN 16 bar (Threaded) / PN 25 bar (Flanged)
- Temperature up to 130 °C
Conformity according to European Measuring Instruments Directive (MID)- Pulser with 3 m cable
(Standard pulse value: DN 15–32: 2,5 liters, DN 40-50: 10 liters) - Environmental class C, Accuracy class 2
Product information
Technical Data
Dimension Diagram
Typical Head Loss Curve
Materials
Installation
Body up to DN 20: Brass
Body from DN 25: Bronze
| Pipeline: | horizontal |  |
| vertical |  | |
| Meter head: | sideways |  |
| ± 45° |  |
Installation - Recommendation
With the US ECHO II, the electronic housing must be mounted on the side (when installed horizontally). US ECHO II may be turned up to max. ± 45° in relation to the pipe axis. A straight inlet or outlet section is not required for US ECHO II ultrasonic volume measuring meters. However, an inlet section of at least 5 x DN is recommendable if sufficient space is available.
Installation recommendations
The choice of installation site must ensure air cannot collect in the meter.
Technical data Pulse generator
| Switching element | ||
|---|---|---|
| Type | Passive Open collector | |
| Switching voltage | Umax | 30 V DC |
| Switching current | Imax | 27 mA |
| Switching capacity | Pmax | 0,81 W |
| Pulse length | 5 ms | |
Pulse value table
Installation – Recommendations
| Pulse generator | DN 15 …32 1 Pulse = ... Liters | DN 40/50 1 Pulse = ... Liters |
|---|---|---|
| Pulse | 2,5 | 10 |
Pulse transmission interference
In case of interference during the pulse transmission between the pulse
generator and the pulse receiver, (i.e. cable is in the same duct as power cable), we recommend shielded and twisted cables.