CORONA ER

CORONA ER

ELECTRONIC METER | MULTI-JET

Fully electronic compact water meter with impeller scanning for recording volume. Highly accurate recording of all billing data at medium temperatures up to 90 °C.

  • Inbuilt radio module 868 MHz
  • Electronic sensor control for recording flow rate
  • Lithium battery, lifetime up to 12 years
  • Optical ZVEI interface equipped as standard
  • Adjustable reading date for billing
  • Rotatable integrator
  • Single-line 7-digit display for easy meter reading
  • Electronic - Basic features
    Ambient classOIML R49 class C / MID E2 + M1
    Protection classIP 54 or IP 68 for cold and warm water meter
    InterfacesOptical ZVEI, radio
    Note: IZAR@SET / HYDRO-SET Software for configuration of meters, readout of measured values and printout of meter logs. Available under www.diehl.com/metering (Products - downloads)
  • Technical data display
    Display indicationLCD, 7-digit
    Unitm³/h - l/h - m³ - l
    Total values99,999.99
    Values displayedFlow rate
  • Supply voltage
    Operating voltageUNVDC3.0 (lithium battery)
    Battery lifetimeUp to 12 years
    Nominal powerPNμW30
  • Interfaces - Overview
    OpticalZVEI interface for communication, M-Bus protocol
    Radio868 MHz, real data, Open Metering Standard
  • Radio interface - Specification
    FrequencyMHz868
    ProtocolReal data, open metering
    Transmission powermW10
    Transmission intervalsec.64
    CommunicationIZAR OPTO HEAD BT and HYDRO-SET or IZAR@MOBILE
  • General
    Temperature range°C30 (for cold water meter) / 90 (for warm water meter)
    Ambient operating temperature°C1 ... 55
    Ambient storage temperature°C-20 ... 55
    Nominal pressurePNbar10 / 16
    Mounting positionIn any position, also overhead
  • Technical data
    Nominal diameterDNmm151515202020
    Permanent flow rateQ3m³/h2.52.52.5444
    Overall lengthLmm110130165105130190
    Overload flow rateQ4m³/h3.1253.1253.125555
    Transitional flow rateQ2l/h323232515151
    Minimum flow rateQ1l/h201201201321321321
    Starting flow ratel/h3 - 43 - 43 - 45 - 65 - 65 - 6
    Pressure loss at Q3Δpmbar615615615620620620
    Flow rate at 0.1 bar pressure lossm³/h0.9620.9620.9621.6071.6071.607
    1 at R 125
  • Approval
    Nominal diameterDNmm151515202020
    Permanent flow rateQ3m³/h2.52.52.5444
    Overall lengthLmm110130165105130190
    MID (LNE 12552 | LNE 13629) - T30
    MID (DE-07-MI001-PTB008 | LNE 13629) - T90
    MID (LNE 14587) - T30/T90
    Dynamic range (Q3/Q1)R80 / 100 / 12580 / 100 / 12580 / 100 / 12580 / 100 / 12580 / 100 / 12580 / 100 / 125
  • Dimensions
    Nominal diameterDNmm151515202020
    Permanent flow rateQ3m³/h2.52.52.5444
    Overall lengthLmm110130165105130190
    Overall length with couplingL2mm186206241181206266
    Connection thread on meterInchG¾BG¾BG¾BG1BG1BG1B
    Connection thread of couplingInch
    Flange diameterDmm
    Hole circle diameterKmm
    Number of screwholespcs
    Screwhole diameterD1mm
    HeightHmm202020202020
    HeightH1mm757575757575
    WidthBmm626262626262
    WidthAmm
    Weight without couplingkg0.811.30.811.5
    Weight with couplingkg11.21.51.31.52
    Weight with flangeskg
  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph