Description:

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 Chinese 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°C.

 Features:
1.Flow-rate range: 1.5~3.5m3/h,
2.Min. temperature difference 3°C
3.Horizontal/vertical installation
4.Smart single-flow design, capable of recording flow rate and volume
5.Compact size, light weight and elegant design
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
11.360o revolving monitor for easy reading
12.Wide measuring range (q s/q i =100:1)
13.Low startup flow rate
14.Capable of measuring both heat and cold energies
15.For use at water inlet end (heat meters for return water end are available at the request of users)
16.PT1000 temperature sensor pair
17.Environment class: A

Measuring Features:

1.Water pressure: No more than 1Mpa
2.Measuring Class & Max. Tolerance
This product is for Class 2 measurement, and the max tolerance is shown in the curve below:    
E=±(3+4Δθmin/Δθ+0.02qp/q)%
Therein, Δθmin means the minimum temperature difference, and Δθ the actual temperature difference.

Dimensional Parameters:

Pipeline Installation Diagram (for Meters Used at Inlet End)