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
Features
- 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
Function
- 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.
General
| Profile |
| 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 |
| Display Indication: LCD, 8 digits |
| Max. Flow Reading: 999999.99 (m3) |
| Max. Heating Reading: 99999999 (kW·H) |
| Interface |
| 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 qp mbar | 140 | 180 | 140 | 120 | 110 | 140 |
| 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 |