Ultrasonic heat meters,Mechanical heat meters

YG-RLM(D)-15-25

YG-RLM(D)-15-25

YG-RLM (D) series of heat meters are a new generation of integrated single-flow heat meters developed on the basis of YG-RLM series for the Europe and Russia market. This product uses advanced nonmagnetic technology and has the features of simple structure, compact size, elegant design, and light weight. It can be used to measure the flows of both heating and cooling systems in living areas. The temperature range is 4~95℃.

Measurement unit: Kwh, Gcal for option

For Single 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(D)-15-0.6

0.6

110

15

1.5m

kw/h

M-BUS

2

RLM(D)-15-0.6

0.6

110

15

1.5m

Gcal

RS-485

2

RLM(D)-15-1.5

1.5

110

15

1.5m

kw/h

M-BUS

2

RLM(D)-15-1.5

1.5

110

15

1.5m

Gcal

RS-485

2

RLM(D)-20-2.5

2.5

130

20

1.5m

kw/h

M-BUS

2

RLM(D)-20-2.5

2.5

130

20

1.5m

Gcal

RS-485

2

RLM(D)-25-2.5

2.5

160

25

1.5m

kw/h

M-BUS

2

RLM(D)-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 3℃
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(℃)

4~95


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.


Dimensional Parameters:

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

85

85

85

85

85

85

Length

mm

110

110

110

110

130

130


Mounting for heat meters:

(For Meters used at water supply or return water for option):

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