RC12 Ultrasonic Heat Meter


Ploumeter RC12 Series ultrasonic heat meters are used for energy measurement of heating or chilled water in residential and small commercial heating and air conditioning systems.

RC12 Series heat meters consist of:

  • Electronic energy calculator with 8-digit LCD display
  • Ultrasonic flow sensor with an internal assembly made of PPO™ and mirrors made of stainless steel
  • Brass flow sensor housing with external threads according to ISO228 on inlet and outlet and suitable externally threaded tailpieces with union nuts and sealings
  • Temperature sensors for supply and return pipeline with suitable brass fittings
  • Fully resistant to external magnetic fields
  • Robust ultrasonic flow sensor
  • Support M-Bus, RS485, Wireless M-Bus communication interface
  • Non-wearing due to non-moving parts
  • Self-diagnostics
  • Calculator: the meter is equipped with a fully electronic energy calculator with separate registers for heating and chilled water energy
  • Flow sensor: the ultrasonic technology of the flow sensor combines high measuring accuracy with long term stability and low starting volume
  • Temperature sensors: the meter is equipped with a pair of Pt1000 temperature sensors with a length of 1.5m each
  • Interfaces: RC12 Series ultrasonic heat meters are equipped with M-Bus interfaces as standard.
Application:   Heating/Cooling/Heating-cooling metering
Approval:   MID
Mount Position:   Vertical or Horizontal (any angle)
Structure Type:  Integrated or Split (Calculator can be mounted separately)
Battery Supply:   3.6V lithium battery up to 8 years lifetime
Temperature Sensor Type:   PT1000 with two wire leads (JUMO brand)
Operating Pressure:   16bar, (25bar can be customized)
Cable Length of Temperature Sensor:   1.5m
Test Possibilities:   Display, instruction
Calculator basic features
Environmental Class:   EN1434/MID E1+M1
Ambient Operating Temperature:   A class (5…55)℃ or B class (-25…55) ℃ optional
Ambient Storage Temperature:    -20…+70℃
Protection Class:    IP68
Communication:    M-bus, RS485, Wireless M-Bus
Integrated Radio:    Wireless M-bus, Radio 868 (OMS)
Output:    Pulse
Standard Interface:    Optical interface
Temperature Range Heating:    4…95℃, (4…130℃ can be customized)
Temperature Range Cooling:    4…95℃
Extensive Data Memory:    720 days flow rate and heat data
Display Indication:    LCD, 8 digits
Max. Flow Reading:    999999.99 (m3)
Max. Heating Reading:   99999999 (kW·H)
Optical:   Band rate 2400
M-Bus:    Band rate 300…9600
RS485:    Band rate 300…9600
Temperature Input
Starting Temperature Difference:    0.25K
Min. Temperature Difference:    3K (2K can be customized)
Max. Temperature Difference:    60K (105K can be customized)
Absolute Temperature Measuring Range:   4…95℃ (4…130℃ can be customized)
Technical Data
DN Size DN15 DN15 DN20 DN25 DN32 DN40
Minimum (qi)        m3/h 0.006 0.015 0.025 0.035 0.06 0.1
Nominal (qp)        m³/h 0.6 1.5* 2.5 3.5 6 10
Maximum (qs)       m³/h 1.2 3 5 7 12 20
Dynamic range (qp/qi 100:1 100:1 100:1 100:1 100:1 100:1
Pressure drop at qmbar 140 180 140 120 110 140
*is standard configuration, please contact with Ploumeter for other qp Value.
DN Size DN15 DN20 DN25 DN32 DN40
L(mm) 110 130/190 160/260 180/260 200/300
L2(mm) 204 234 280 300 328
L1(mm) 111 111 111 111 111
H(mm) 82 85 88 91 95
B(mm) 108 108 108 108 108
Threads meter G3/4B G1B G11/4B G11/2B G2B
Threaded tailpiece R1/2 R3/4 R1 R11/4 R11/2

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