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Ultrasonic Heat Meter with M-Bus or RS-485 (3/4" to 1 1 1/2")
  • Ultrasonic Heat Meter with M-Bus or RS-485 (3/4" to 1 1 1/2")
Payment Type: T/T, Western Union
Min. Order: 200 Bag/Bags
Basic Info

Model No.:  RLM(C)-20-40

Product Description

Model NO.: RLM(C)-20-40

Installation: Direct Connected

Electric Equipment: Battery 10 Years

Power Meter Connection: Kw/H or Gcal

Type: Heat Meter

Customized: Non-Customized

Communication Protocal: M-Bus or RS-485

Logo: OEM Is Acceptable

Specification: Class 2

HS Code: 9028109000

Display: Indicator

Usage: Meter for Industry and Home Use

Theory: Tempeature Sensor

Measured Signal: M-Bus or RS-485

Certification: CE

Heat Meter Size: Dn20mm to Dn40mm

En1434: Complied

Trademark: OEM is acceptable

Origin: Cixi, China


YG-RLM(C) series heat meters can be used to calculate heat or cold in apartment. This series is suitable for temperature range from 4 to 95ºC.


Water will release heat if temperature decreases. Released heat is ratable with temperature difference and flowing volume through meter.

Flowing volume signal comes from flow sensor,temperature difference comes from temperature sensor pair,as result the calculator will calculate heat according to the flowing volume and temperature difference.


Model Size Max flow Pemanent flow Minmum flow Flow sensor interface size Flow sensor interface size Minmum height
of meter body
Maximum height
of meter body
Meter weight
DN(mm) qs(m3/h) qp(m3/h) qi(m3/h) Length with comector Connecting thread Length with connector thread length connector theread
L(mm) D(inch) H(mm) L2(mm) D1(inch) H(mm) H1(mm) Kg
RLM(C)-15 15 3 1.5 0.03 110 G3/4B 205 10 R1/2 100 150 0.5
RLM(C)-20 20 5 2.5 0.05 130 G1B 235 16 R3/4 100 150 0.7
RLM(C)-25 25 7 3.5 0.07 160 G11/4B 280 18 R1 110 160 1.5
RLM(C)-32 32 12 6.0 0.12 180 G11/2B 305 20 R11/4 130 180 1.8
RLM(C)-40 40 20 10 0.2 200 G2B 328 22 R11/2 140 190 2.5

Pressure loss
Class 2
Max working pressure
Working pressure
Hot (cold) cinsumption calculation
Starting for 0.25k
Temperature range
Temperature difference range
Temperature temperature
Environment temperarure
A Type +5 ~ +55ºC
Battery life
10 Year (Lithium Battery)
Horzontal or vertical installation
Temperature sensor
Pt1000 /Platinum resistance
Dispaly digits
8 digits

If you are interested in our heat meter, please feel free to contact us!

Contact: Ethan Huang
Mobile: 0086-18958354682
Tel: 0086-574-63578074
Fax: 0086-574-63577818

Contact us if you need more details on Ultrasonic Heat Meter. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Heat Meter、Energy Meter. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Heat Meter