RAY MC
- Multi-jet volume measuring component (DN 15 - 20)
- Calculator, contains hardware and software for measuring flow rate, temperature and energy consumption
- Temperature sensor permanently connected in integrator
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COMPONENTS
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Calculator - basic features
Ambient class EN 1434 class C / MID E1 + M1 Protection class DIN 40050 / IEC-EN 60529 IP 54 (heat meter) | IP 65 with potted calculator (combined heat-cooling / cooling meter) Interfaces standard Optical ZVEI according IEC 870-5 Interfaces optional M-Bus, radio, pulse Note: IZAR@SET / HYDRO-SET Software for configuration of meters, reading of measured values and printout of meter logs. Available under www.diehl.com/metering (Products - Downloads) -
Display
Display indication LCD, 7-digit Unit MWh - kWh - GJ - MJ - kW - m³/h - l/h - m³ - l Total values 9,999,999 - 999,999.9 - 99,999.99 - 9,999.999 Values displayed Power - energy - flow rate - temperature - energy on reading date - reading date -
Temperature input
Temperature sensor type Pt 500 / 2-wire Measuring cycle T s 32 Max. temperature difference ΔΘ K +102 Min. temperature difference ΔΘ K +3 Starting temperature difference ΔΘ K +0.25 Absolute temperature measurement range Θ °C 0 ... 105 -
Supply voltage
Operating voltage UN VDC 3.0 (lithium battery) Battery lifetime Up to 12 years Nominal power PN μW 30 -
Interfaces - Overview
Optical ZVEI interface for communication, M-Bus protocol M-Bus According to EN 1434-3. Data reading and parametrization are via two wires with polarity reversal protection. (Meter is powered with energy via M-Bus Master) Radio 868 MHz, Real Data or Open Metering Standard (OMS) protocol Pulse Output for heat meters or cooling meters (energy / volume), for cooling-heat meters (energy cooling / energy heating or energy cooling / total volume), for heat-cooling meters (energy heating / energy cooling or energy heating / total volume) -
Radio interface - specification
Frequency MHz 868 Protocol Real Data (according EN 13757) or Open Metering Standard (OMS) Transmission power mW 10 Transmission interval sec. 64 Communication Via Bluetooth optohead and IZAR@SET / HYDRO-SET software or IZAR@MOBILE software -
Volume- / energy pulse
Output type Open collector Max. frequency Hz 4 Max. input voltage V 30 Max. input current mA 100 Max. voltage drop at active output V/mA 2/27 Max. current through inactive output μA/V 5/30 Max. reverse voltage without destroying outputs V 6 Min. pulse duration ms 125 Min. pulse break ms 125
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General
Temperature range °C 5 ... 90 Ambient operating temperature °C 0 ... 55 Ambient storage temperature °C -20 ... 55 Nominal pressure PN bar 16 Temperature sensor type Pt 500 with 2 wire leads Cable length of temperature sensor 0.4 m mounted in measuring capsule; 1.5 m free Mounting position energy meter In any position, also up side down Approval MID (DE-07-MI004-PTB030) and PTB TR K7.2 (DE-19-M-PTB-0001) for cooling meter -
Temperature sensor
Tangential sensor1 - - - Type 1 0.4 m | Ø 5.2 mm | PU grey | 3 K - 102 K Free sensor - - - Type 1 1.5 m | Ø 5.2 mm | PU grey | 3 K - 102 K Type 2 1.5 m | Ø 5 mm | PU grey | 3 K - 102 K 1 mounted in measuring capsule -
Technical data
Nominal diameter DN mm 15 15 20 Nominal flow rate qp m³/h 0.6 1.5 2.5 Maximum flow rate qs m³/h 1.2 3 5 Minimum flow rate at ΔΘ 3 K qi l/h 120 120 120 Minimum flow rate1 qi l/h 6 15 25 Starting flow rate l/h 1.5 - 2 3 - 4 5 - 6 Pressure loss at qp Δp mbar 243 243 242 Flow rate at 0.1 bar pressure loss m³/h 0.385 0.962 1.607 Flow resistance coefficient Zeta 56.25 9 10.24 1 according to EN1434 for flow sensor -
Dimensions
Capsule Nominal diameter DN mm 15 15 20 Nominal flow rate qp m³/h 0.6 1.5 2.5 Connection interface Ø A Inch G2B G2B G2B Height H mm 15.2 15.2 15.2 Height H1 mm 55 55 55 Diameter Ø B mm 63 63 63 Diameter Ø C mm 74 74 74 Weight kg 0.5 0.5 0.5 -
Dimensions - accessory
Housing Nominal diameter DN mm 15 15 20 Nominal flow rate qp m³/h 0.6 1.5 2.5 Overall length L mm 110 110 130 Overall length with coupling L2 mm 190 190 210 Height H mm 17 17 21 Height H1 mm 29 29 31 Order no. 1 piece 3031602 3031602 3031600 Order no. 6 pieces 3026961 3026961 3029251 -
Pressure loss graph / Typical error graph
Pressure loss graph Typical error graph
