The mechanical heat meter measures the flow volume and display the heat energy released or absorbed by water flow when passing though the heat exchange system.
The temperature range is 4~95ºC.
Measurement unit: Kwh, Gcal for option
For Multi jet heat meter, communication via M-BUS, RS-485, Pulse output for option.
Models and Specifications
| Model |
Qn(m3/h) |
Length(mm) |
DN(mm) |
Sensor length |
Display |
Romote |
Class |
| RLM-15-0.6 |
0.6 |
110 |
15 |
1.5m |
kw/h |
M-BUS |
2 |
| RLM-15-0.6 |
0.6 |
110 |
15 |
1.5m |
Gcal |
RS-485 |
2 |
| RLM-15-1.5 |
1.5 |
110 |
15 |
1.5m |
kw/h |
M-BUS |
2 |
| RLM-15-1.5 |
1.5 |
110 |
15 |
1.5m |
Gcal |
RS-485 |
2 |
| RLM-20-2.5 |
2.5 |
130 |
20 |
1.5m |
kw/h |
M-BUS |
2 |
| RLM-20-2.5 |
2.5 |
130 |
20 |
1.5m |
Gcal |
RS-485 |
2 |
| RLM-25-2.5 |
2.5 |
160 |
25 |
1.5m |
kw/h |
M-BUS |
2 |
| RLM-25-2.5 |
2.5 |
160 |
25 |
1.5m |
Gcal |
RS-485 |
2 |
Features:
1. Flow-rate range: 0.6~2.5m3/h.
2. Min. temperature difference 3ºC
3. Horizontal/vertical installation
4. Embedded and removable installation design to prevent damage during the adjustment period
5. Smart multi-flow design, capable of recording flow rate and volume
6. Advanced nonmagnetic sensing technology
7. High precision design, meeting Class 2 metering requirements of EN1434 and CJ128 standards
8. A lithium battery with service life exceeding six years
9. Optional remote RS485 or M-BUS output, convenient for remote systems
10. Payment settlement date renewable, 18-month data storage
11. 360 degree revolving monitor for easy reading
12. Inclined LCD for optimized viewing
13. Wide measuring range (q s/q i =100:1)
14. Low startup flow rate
15. Capable of measuring both heat and cold energies
16. For use at water inlet end (heat meters for return water end are available at the request of users)
17. PT1000 temperature sensor pair
18. Environment class: A
Main Technical Parameters:
| Normal Flow(Qn) |
0.6m3/h |
1.5m3/h |
2.5m3/h |
| Flow range(m3/h) |
0.012~1.2 |
0.03~3 |
0.05~5 |
Pressure loss(KPa/Qp)
Reference diagram I |
24 |
24 |
24 |
| Max. Pressure(MPa) |
1.6 |
| Temperature range(ºC) |
4~95 |
YG-EAS
Application: Before mount the heat firstly install this YG-EAS in pipeline. It will help to avoid damage meter during build apartment and rubbish in pipeline plug up the heat meter. Only need turn-on the cover and mount heat on the body of YG-EAS when want to assemble heat meters.
Pressure Loss Diagram:
Measuring Features:
Water will release heat if temperature decreases. Released heat is ratable with temperature difference and flow volume through meter. Flow volume signal comes from flow sensor, temerature difference comes from temperature sensor pair, as result the calculator will calculate heat according to the flowing volume and temperature difference.
Water pressure: ≤1.6Mpa
Measuring accuracy: Class 2
The max tolerance is shown in the curve below:
E=±(3+4Δθmin/Δθ+0.02qp/q)%
Therein,Δθmin means the minimum temperature difference, and Δθthe actual temperature difference.
| Normal flow(Qn) |
m3/h |
0.6 |
1.5 |
2.5 |
| Normal DN |
mm |
15 |
15 |
20 |
| Body thread |
---- |
G3/4"B |
G3/4"B |
G1"B |
| Connection thread |
---- |
1/2" |
1/2" |
3/4" |
| Height |
mm |
119 |
119 |
119 |
119 |
117 |
117 |
| Length |
mm |
110 |
110 |
110 |
110 |
130 |
130 |
Dimensional Parameters:
EXPLODED
Mounting for heat meters:
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