RAY

RAY
  • COMPONENTS
  • Calculator - Basic features
    Ambient classEN 1434: class C / MID: E1 + M1
    Protection class DIN 40050 / IEC-EN 60529IP 54 (heat meter) | IP 65 with potted calculator (combined heating-cooling)
    Interfaces standardOptical ZVEI according IEC 870-5
    Interfaces optionalRadio, M-Bus, pulse output
    Note: HYDRO-SET and IZAR@MOBILE 2 Softwares for configuration of meters, reading of measured values and printout of meter logs are available under www.diehl.com/metering (Products - downloads)
  • Display
    Display indicationLCD, 7-digit
    UnitMWh - kWh - GJ - MJ - kW - m³/h - l/h - m³ - l
    Total values9,999,999 - 999,999.9 - 99,999.99 - 9,999.999
    Values displayedPower - energy - flow rate - temperature - energy on reading date - reading date
  • Temperature input
    Temperature sensor typePt 500 / 2-wires
    Measuring cycleTs32
    Max. t° differenceΔΘK+147
    Min. t° differenceΔΘK+3
    Starting t° differenceΔΘK+0.25
    Absolute t° measurement rangeΘ°C0 ... 150
  • Supply voltage
    Operating voltageUNVDC3.0 (lithium battery)
    Battery lifetimeUp to 12 years
    Nominal powerPNμW30
  • Interfaces - Overview
    OpticalZVEI interface for communication, M-Bus protocol
    M-BusAccording 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)
    Radio868 MHz, Real Data or Open Metering Standard (OMS)
    Pulse outputHeat meter: output energy and volume; Combined meter (heat/cooling): energy heating / energy cooling
  • Radio interface - Specification
    FrequencyMHz868.95
    ProtocolReal Data (according EN 13757) or Open Metering Standard (OMS)
    Transmission powermW10
    Transmission intervalsec.64
    CommunicationIZAR OH BT and HYDRO-SET or IZAR@MOBILE 2 (radio version)
  • Volume- / energy pulse
    Output typeOpen collector
    Max. frequencyHz4
    Max. input voltageV30
    Max. input currentmA27
    Max. voltage drop at active outputV/mA2/27
    Max. current through inactive outputμA/V0.5/30
    Max. reverse voltage without destroying outputsV6
    Min. pulse durationms125
    Min. pulse breakms125
  • Product picture
    Standard, M-Bus, PulseRadio
  • General
    Temperature range°C+5 ... +90
    Ambient operating temperature°C0 ... +55
    Ambient storage temperature°C-20 ... +55
    Nominal pressurePNbar16
    Mounting positionIn any position, also up side down
    Cable length of temperature sensor - installation in return pipe1.5 m free (forward sensor) / 0.4 m mounted in housing (return sensor)
    Cable length of temperature sensor - installation in forward pipe0.4 m mounted in housing (forward sensor) / 1.5 m free (return sensor)
    ApprovalMID (DE-07-MI004-PTB030) and PTB TR K7.2 (22.72 / 09.04) for cooling meter
    Dynamic range (qp/qi)R1:25 / 1:50 / 1:100
  • Technical data
    Nominal diameterDNmm151520
    Nominal flow rateqpm³/h0.61.52.5
    Overall lengthLmm110110130
    Maximum flow rateqsm³/h1.235
    Permissible continuous load (HY)m³/h
    Minimum flow rateqil/h61151251
    Starting flow ratel/h1.5 - 23 - 45 - 6
    Pressure loss at qpΔpmbar243243242
    Pressure loss at qp for installation in rising pipesmbar
    Pressure loss at qp for installation in downpipesmbar
    Flow rate at 0.1 bar pressure lossm³/h0.3850.9621.607
    Flow rate at 0.1 bar pressure loss - rising pipesm³/h
    Flow rate at 0.1 bar pressure loss - downpipesm³/h
    Kvs value (Δp=Q2/Kvs2)1.23.05.1
    1 at qp/qi 100
  • Dimensions
    Nominal diameterDNmm151520
    Nominal flow rateqpm³/h0.61.52.5
    Overall lengthLmm110110130
    DiameterØ Bmm
    DIMENSIONS - THREAD
    Overall length with couplingL2mm190190210
    Connection thread on meterInchG¾BG¾BG1B
    Connection thread of couplingInch
    HeightHmm
    HeightH1mm
    Weight without couplingkg
    Weight with couplingkg
    DIMENSIONS - FLANGE
    Flange diameterDmm
    Hole circle diameterKmm
    Number of screwholespcs
    Screwhole diameterD1mm
    HeightHmm202020
    HeightH1mm757575
    DiameterØ Bmm636363
    WidthAmm
    Weight without couplingkg0.90.91
    Weight with couplingkg
    Weight with flangeskg
  • Pressure loss graph / typical error graph
    Pressure loss graphTypical error graph