HYDRUS

HYDRUS

ULTRASONIC METER

HYDRUS is a static water meter based on the ultrasonic technology. This technology enables accurate calculation of water consumption and eliminates measuring deviations caused by sand, suspended particles or air pockets.

  • Long-term stability under difficult conditions
  • Leak and pipe burst detection
  • MID approval up to R=400 (cold water) and R=160 (hot water)
  • No straight line required
  • No measurement of air
  • Insensitive to scale and sand
  • Installation in any position
  • Battery lifetime up to 16 years
  • Available in cold water version and hot water version
  • Available with integrated radio 434 or 868 MHz, M-Bus or pulse
  • Data communication in Prios, Real data or Open Metering protocol (selectable OMS Generation 3 profile A or OMS Generation 4 profile B)
  • General
    Medium temperature range°C+1 ... +50 (cold water) / +1 ... +90 (hot water)
    Ambient operating temperature°C+1 ... +70
    Ambient storage temperature°C-10 ... +70 (>35 °C max. 4 weeks)
    Nominal pressurePNbar16
    Power supply2 x 3.6 VDC lithium-batteries (only 1 battery with M-Bus possible)
    Battery lifetime T301/T501Up to 12 years (1 battery), up to 16 years (2 batteries)
    Battery lifetime T901Up to 12 years (all interfaces)
    InterfacesOptical, radio (434 or 868 MHz), M-Bus, Pulse
    Data storageFor events and consumption values
    Protection classIP 68
    1 depends on the sending interval of the radio telegram, the telegram length and the ambient temperature at the installation
  • Technical data display
    Display indicationLCD, 8-digit
    Units DN 15 - DN 32Flow and volume (m³ + 3 digits after the decimal point)
    Units DN 40 + DN 50Flow (m³ + 3 digits after the decimal point); Volume (m³ + 2 digits after the decimal point)
    Values displayed (depending on configuration)Volume2 - flow - mediums temperature - display test2 - current error and alarm status2 - date - primary and secondary address - radio signal ON/OFF - battery lifetime2 - accounting day - error hour counter - pulse values - software checksum2
    2 Display according to approval (always on)
  • Interfaces
    OpticalFor configuration of display information and radio telegram, to switch to the various display loops
    Radio434 or 868 MHz, Prios, Real data, Open Metering Standard (OMS-Generation 3, Profile A, or OMS-Generation 4, Profile B, selectable)
    M-Bus2400 Baud (adjustable to 300 Baud), configurable telegram, cable length 1.5 m, power supply only via built-in battery
    Pulse (Open collector)2 configurable pulse outputs, cable length 1.5 m
  • Volume- / Pulse open collector
    Max. input voltageV30
    Max. input currentmA27
    Max. voltage drop at active outputV/mA2/27
    Max. current through inactive outputμA/V5/30
    Max. reverse voltage without destroying outputsV6
    Pulse ratesl/pulseDecadic 0.1 ... 100
    Pulse output 1 variantsTotal volume or forward volume
    Pulse output 2 variantsForward volume, direction3 or error
    Pulse durationDepending on device configuration4
    Pulse breakDepending on device configuration4
    Pulse frequencyDepending on device configuration4
    3 when total volume on pulse output 1, only direction possible on pulse output 2
    4 detailed description on request
  • Technical data*
    Nominal diameterDNmm1515152020
    Nominal flow rateQ3m³/h2.52.52.544
    Overall lengthLmm110165170130190
    Overload flow rateQ4m³/h3.1253.1253.12555
    Transitional flow rateQ2l/h16161625.625.6
    Minimum flow rateQ1l/h1010101616
    Starting flow ratel/h2.62.62.64.34.3
    Pressure loss at Q3bar0.330.330.330.30.3
    * at dynamic range R=250 / further overall lengths on request
  • Approval
    ApprovalMID LNE 14586 | OIML R49 | EN 14154 | TVO | KTW | ACS | WRAS
    Dynamic range (Q3/Q1) - Q3 1.6 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 2.5 m³/h (T30 - T50)R160 / 200 / 250 / 315 / 400
    Dynamic range (Q3/Q1) - Q3 4 m³/h (T30 - T50)R160 / 200 / 250 / 315 / 400
    Dynamic range (Q3/Q1) - Q3 1.6 - 4 m³/h (T90)R160 / 200
    Dynamic range (Q3/Q1) - Q3 6.3 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 10 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 16 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 25m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 6.3 - 25 m³/h (T90)R
  • Dimensions
    Nominal diameterDNmm1515152020
    Nominal flow rateQ3m³/h2.52.52.544
    Overall lengthLmm110165170130190
    Counter lengthL1mm8888888888
    Counter widthBmm9494949494
    DIMENSIONS - THREAD
    Overall length with couplingL2mm190245250230290
    Connection thread on meterinchG¾BG¾BG¾BG1BG1B
    Connection thread of couplinginch
    HeightH1mm6767676565
    Weight without coupling (approx.)kg0.8110.91.1
    Weight with coupling (approx.)kg11.21.41.31.5
    HeightHmm3232323434
    DIMENSIONS - FLANGE
    Flange diameterDmm
    Hole circle diameterKmm
    Number of screwholespcs
    Screwhole diameterD1mm
    HeightHmm
    HeightH1mm
    WidthFmm
    Weight with flanges (approx.)kg
  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph
  • Technical data*
    Nominal diameterDNmm253225324040505050
    Nominal flow rateQ3m³/h6.36.310101016162525
    Overall lengthLmm260260260260300300270270300
    Overload flow rateQ4m³/h7.877.8712.512.512.5202031.2531.25
    Transitional flow rateQ2l/h50.450.4808080128128200200
    Minimum flow rateQ1l/h31.5*31.550*50*5080*80125*125
    Starting flow ratel/h101010101616252525
    Pressure loss at Q3bar0.250.250.550.550.250.40.10.250.25
    * at dynamic range R=200; for other dynamics please contact your Diehl Metering agency.
  • Approval
    ApprovalMID LNE 14586 | OIML R49 | EN 14154 | TVO | KTW | ACS | WRAS
    Dynamic range (Q3/Q1) - Q3 1.6 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 2.5 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 4 m³/h (T30 - T50)R
    Dynamic range (Q3/Q1) - Q3 1.6 - 4 m³/h (T90)R
    Dynamic range (Q3/Q1) - Q3 6.3 m³/h (T30 - T50)R40 / 807 / 160 / 200
    Dynamic range (Q3/Q1) - Q3 10 m³/h (T30 - T50)R40 / 807 / 160 / 200 / 250
    Dynamic range (Q3/Q1) - Q3 16 m³/h (T30 - T50)R40 / 80 / 160 / 200 / 250 / 3158 / 4008
    Dynamic range (Q3/Q1) - Q3 25m³/h (T30 - T50)R40 / 80 / 160 / 200 / 250 / 315 / 400
    Dynamic range (Q3/Q1) - Q3 6.3 - 25 m³/h (T90)R40 / 80 / 160
    7 variant DN 25 with body length 135 mm and 150 mm only in R 80
    8 not for DN 50
  • Dimensions
    Nominal diameterDNmm253225324040505050
    Nominal flow rateQ3m³/h6.36.310101016162525
    Overall lengthLmm260260260260300300270270300
    Counter lengthL1mm929292929292929292
    Counter widthBmm949494949494949494
    DIMENSIONS - THREAD.........
    Overall length with couplingL2mm380380380380440440390390420
    Connection thread on meterinchG1¼BG1½BG1¼BG1½BG2BG2BG2½BG2½BG2½B
    Connection thread of couplinginchR1R1¼R1R1¼R1½R1½R2R2R2
    HeightH1mm848484848787909090
    Weight without coupling (approx.)kg1.61.81.61.83.053.053.93.94.05
    Weight with coupling (approx.)kg2.22.42.22.44.254.255.55.55.65
    HeightHmm262626263131414141
    DIMENSIONS - FLANGE........
    Flange diameterDmm115140115140148148163163163
    Hole circle diameterKmm8510085100110110125125125
    Number of screwholespcs444444444
    Screwhole diameterD1mm141814181818181818
    HeightHmm5062.55062.5696973.573.573.5
    HeightH1mm848484848787909090
    WidthFmm100125100125138138147147147
    Weight with flanges (approx.)kg3.454.73.454.76.676.677.237.237.47
  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph