RC82 Series ultrasonic heating (cooling, heating-cooling) meters are used for energy measurement of heating or chilled water in residential and small commercial heating and air conditioning systems. They are available in DN15…40 and have an electronic energy calculator with separate register for heating and cooling energy. They are fitted with an M-Bus interface for integration into M-Bus networks.
Features
Technical Data
Profile
Application | Heating/cooling/heating-cooling metering |
Approval | MID |
Mount position | Vertical or horizontal |
Calculator protection class | IP 65 |
Battery supply | 3.6V lithium battery up to 8 years lifetime |
Temperature sensor type | PT1000 |
Cable length of temperature sensor | 1.5 meter (or customized) |
Test possibilities | display, instruction (compatible with NOWA software) |
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 | IP 65 |
Radio system | Wireless M-bus can be integrated by 868,434,169MHz (OMS) |
Standard interface | Optical interface |
Interfaces optional | 1 Slots for modules with M-Bus, RS485, Pulse Output |
Temperature range heating | 4~95℃ |
Temperature range cooling | 4~95℃ |
Extensive data memory | 720 days flow data and heat data |
RS485 communication | red is vcc(5~24VDC),white is B,green is A,black is GND |
Pulse output | red is output and black is GND |
Display
Display indication | LCD, 8 digits |
Units | MWh - kWh - GJ - Gcal - ℃ –K - m³ - m³/h |
Total values | 99,999,999 - 9,999,999.9 - 999,999.99 - 99,999.999 |
Values displayed | Energy /Power/Volume/ Flow Rate/Temperature and more |
Interfaces
Optical | Band rate 2400 |
M-Bus | Band rate 300-9600 |
RS485 | Band rate 300-9600 |
Pulse output | One pulse output |
Temperature input
Starting temperature difference ΔΘ K | 0.25 |
Min. temperature difference ΔΘmin K | 3 (2K can be customized) |
Max. temperature difference ΔΘmax K | 60 (105 can be customized) |
Absolute Temperature measuring range Θ ℃ | 4 ~95 (4-130 can be customized) |