HYDRUS 2.0

HYDRUS 2.0

ULTRASONIC METER

HYDRUS 2.0 is a static ultrasonic water meter designed for all applications of domestic cold water supply enabling accurate measuring with long-term stability under difficult conditions (no measurement of air and insensitive to sedimentation). Developed within the framework of the MID, it complies with the European regulations and holds sanitary conformity certificates (KTW/W270, ACS, WRAS and others). The integrated communication function supports meter data provision via mobile reading (walk-by/drive-by/passive drive-by) or fixed network (upgrade without on-site configuration). In combination with Diehl Metering’s IZAR fixed network system, which stands out with excellent coverage, high data granularity and timeliness will be maintained. This is what makes it a high responsive infrastructure to take actions immediately.

The HYDRUS 2.0 saves 512 consumption values with a daily interval. This data can be read locally and accessed only by using the IZAR@MOBILE 2. As a second logging, a small amount of 32 consumption values can be stored. The HYDRUS 2.0 has a minimal sending interval of about 14 seconds and uses the OMS Generation 3 or 4, Profile B security level. Both, the radio protocol and the optical interface are encrypted by default.

  • DN 15 to 40
  • MID approved with dynamic range up to R 800
  • IP 68 suitable for outdoor installations
  • Integrated radio communication based on Open Metering telegram (OMS Generation 3 or 4, Profile B)
  • Wired M-Bus/Pulse/Pulse, wireless M-Bus, wireless M-Bus in combination with wired L-Bus/Pulse interface
  • Display with error and alarm codes including leakage detection
  • Battery lifetime up to 16 years
  • U0 / D0, no need for calming sections
  • General
    Medium temperature range°C+0.1 ... +50
    Ambient operating temperature°C-10 ... +55
    Ambient storage temperature°C-10 ... +70 (>35 °C max. 4 weeks)
    Nominal pressurePNbar16
    Power supplyTwo 3.6 VDC lithium batteries
    Battery lifetime T301/T501Up to 16 years
    Communication interfacesOptical, OMS wireless M-Bus 434 or 868 MHz, M-Bus, L-Bus and Pulse
    Data storageFor errors, alarms and measuring values, data logging capabilities to record up to 512 daily values +32 monthly values and an annual due date
    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, 9-digit, additional symbols/display counter/unit
    Units displayed DN 15 - DN 32Volume (m³ + 3 decimal places) and flow rate (m³/h + 3 decimal places)
    Units displayed DN 40Volume (m³ + 3 decimal places) and flow rate (m³/h + 2 decimal places)
    Values displayedDisplay test - volume - battery lifetime - firmware version - software checksum - flow - current/continuous/historical error - alarm status - high resolution volume - due date - due date volume - reverse volume - display counter - low battery indication - leakage indication - metrological log access - radio signal ON/OFF - alarm indication - meter lock ON/OFF
  • Interfaces - Overview
    OpticalFor switching the display loop
    Radio434 or 868 MHz, Open Metering Standard radio frame (R3) for mobile reading sent every 142/643 seconds, long range radio frame (R4) for fixed network sent every 152/53 minutes
    M-Bus2400 baud, cable length 1.5 m, power supply only via built-in battery - can be combined with two Pulse outputs, or one Pulse and one L-Bus output
    L-BusIn combination with radio, cable length 1.5 m (only one interface communicating at the same time)
    Pulse (Open drain)Two Pulse outputs, or one Pulse and one L-Bus output, Pulse cable length 1.5 m
    2 Fixed Network ready
    3 Fixed Network light
  • Security
    VersionsOMS Generation 3 or OMS Generation 4, Profile B, selectable
  • Volume / Pulse Open Drain
    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 (in case current does not exceed 27 mA)
    Pulse ratesl/pulseDecadic 1 / 10 (depending on nominal diameter)
    Pulse output 1 variantsTotal volume or forward volume
    Pulse output 2 variantsFlow direction or error, reverse volume
    Pulse frequencyMax. frequency 10 Hz
    Pulse width125 ms
  • Possible Communication Interfaces
    Wireless M-Bus/Pulse/L-Bus3 wire
    Wireless M-Bus onlywithout wire
    M-Bus only2 wire
    M-Bus/Pulse/Pulse5 wire
    Pulse/Pulse3 wire
    IZAR BE PULSE4 wire
  • Technical Data
    Nominal diameterDNmm15151515151520202020202020
    Permanent flow rateQ3m3/h1.61.61.62.52.52.52.52.544444
    Overall lengthLmm110165170110165170130190105130175190220
    Dynamic (Q3/Q1)R400400400800800800800800400800800800800
    Overload flow rateQ4m3/h2223.1253.1253.1253.1253.12555555
    Transitional flow rateQ2l/h6.46.46.455555168888
    Minimum flow rateQ1l/h4443.133.133.133.133.13105555
    Starting flow ratel/h1.41.41.41.41.41.41.41.43.02.52.52.52.5
    Pressure loss at Q3bar0.190.190.190.460.460.460.40.40.550.40.40.40.4
    Pressure loss at Q4bar0.30.30.30.720.720.720.630.630.860.630.630.630.63
    Maximum flow rate 4Qhighm³/h2.82.82.84.374.374.374.374.3777777
    Flow rate at ΔP = 1 bar3.673.673.673.693.693.693.953.955.395.395.395.395.39
    4 Outlet pressure minimum 3 bar, maximum 100 hours per year, closed pipeline network
  • Approval
    ApprovalMID DE-19-MI001-PTB012
    Dynamic range (Q3/Q1)RUp to 800
    StandardsISO 4064, EN 14154, OIML R49
    Sanitary conformityKTW/W270, ACS, WRAS
  • Dynamic Range (R=Q3/Q1)
    Q3 1.6 m³/h - T30R160; 400
    Q3 1.6 m³/h - T50R160; 400
    Q3 2.5 m³/h - T30R160; 400; 800
    Q3 2.5 m³/h - T50R160; 400; 800
    Q3 4 m³/h - T30R160; 400; 800 (630 for L 105 mm)
    Q3 4 m³/h - T50R160; 400; 800H / 400V (630 for L 105 mm)
    Q3 6.3 m³/h - T30R
    Q3 6.3 m³/h - T50R
    Q3 10 m³/h - DN 25 - T30R
    Q3 10 m³/h - DN 25 - T50R
    Q3 10 m³/h - DN 32 - T30R
    Q3 10 m³/h - DN 32 - T50R
    Q3 10 m³/h - DN 40 - T30R
    Q3 10 m³/h - DN 40 - T50R
    Q3 16 m³/h - T30R
    Q3 16 m³/h - T50R
  • Dimensions
    Nominal diameterDNmm15151515151520202020202020
    Permanent flow rateQ3m3/h1.61.61.62.52.52.52.52.544444
    Overall lengthLmm110165170110165170130190105130175190220
    Counter lengthL1mm89898989898989898989898989
    Counter widthBmm89898989898989898989898989
    DIMENSIONS - THREAD
    Overall length with couplingL2mm190245250190245250230290205230295290320
    Connection thread on meterInchG¾BG¾BG¾BG¾BG¾BG¾BG1BG1BG1BG1BG1¼BG1BG1B
    Connection thread of couplingInch5R1
    HeightH1mm71717171717174747474747474
    Weight without coupling (approx.)kg0.70.80.80.70.80.80.80.90.80.81.00.91.2
    Weight with coupling (approx.)kg1.11.21.21.11.21.21.21.31.21.21.61.31.4
    HeightHmm18181818181821212121272121
    DIMENSIONS - FLANGE
    Flange diameterDmm
    Hole circle diameterKmm
    Number of screwholespcs
    Screwhole diameterD1mm
    HeightHmm
    HeightH1mm
    WidthFmm
    Weight with flanges (approx.)kg
    5 Wrench size should not be bigger than 38 mm
  • Typical error graph
  • Technical Data
    Nominal diameterDNmm252525252525253240404040
    Permanent flow rateQ3m3/h6.36.36.36.31010101010101616
    Overall lengthLmm135150175260150175260260200300200300
    Dynamic (Q3/Q1)R400400400400800800800800400400800800
    Overload flow rateQ4m3/h7.877.877.877.8712.512.512.512.512.512.52020
    Transitional flow rateQ2l/h25.225.225.225.22020202040403232
    Minimum flow rateQ1l/h15.815.815.815.812.512.512.512.525252020
    Starting flow ratel/h555555558.78.78.78.7
    Pressure loss at Q3bar0.220.220.220.220.540.540.540.540.220.220.50.5
    Pressure loss at Q4bar0.340.340.340.340.840.840.840.840.340.340.780.78
    Maximum flow rate 4Qhighm³/h11.0211.0211.0211.0217.517.517.517.517.517.52828
    Flow rate at ΔP = 1 bar13.4313.4313.4313.4313.4313.4313.4313.4321.3221.3222.6322.63
    4 Outlet pressure minimum 3 bar, maximum 100 hours per year, closed pipeline network
  • Approval
    ApprovalMID DE-19-MI001-PTB012
    Dynamic range (Q3/Q1)RUp to 800
    StandardsISO 4064, EN 14154, OIML R49
    Sanitary conformityKTW/W270, ACS, WRAS
  • Dynamic Range (R=Q3/Q1)
    Q3 1.6 m³/h - T30R
    Q3 1.6 m³/h - T50R
    Q3 2.5 m³/h - T30R
    Q3 2.5 m³/h - T50R
    Q3 4 m³/h - T30R
    Q3 4 m³/h - T50R
    Q3 6.3 m³/h - T30R160; 400
    Q3 6.3 m³/h - T50R160; 400H / 250V
    Q3 10 m³/h - DN 25 - T30R160; 400; 800
    Q3 10 m³/h - DN 25 - T50R160; 400; 800H / 400V
    Q3 10 m³/h - DN 32 - T30R160; 400; 800
    Q3 10 m³/h - DN 32 - T50R160; 400; 800H / 400V
    Q3 10 m³/h - DN 40 - T30R160; 400
    Q3 10 m³/h - DN 40 - T50R160; 400H / 250V
    Q3 16 m³/h - T30R160; 400; 800
    Q3 16 m³/h - T50R160; 400; 800H / 400 V
  • Dimensions
    Nominal diameterDNmm252525252525253240404040
    Permanent flow rateQ3m3/h6.36.36.36.31010101010101616
    Overall lengthLmm135150175260150175260260200300200300
    Counter lengthL1mm898989898989898996969696
    Counter widthBmm898989898989898989898989
    DIMENSIONS - THREAD...........
    Overall length with couplingL2mm255270295380270295380380340440340440
    Connection thread on meterInchG1¼BG1¼BG1¼BG1¼BG1¼BG1¼BG1¼BG1½BG2BG2BG2BG2B
    Connection thread of couplingInchR1R1R1R1R1R1R1R1¼R1½R1½R1½R1½
    HeightH1mm787878787878787882828282
    Weight without coupling (approx.)kg1.01.01.11.41.01.41.41.51.82.61.82.6
    Weight with coupling (approx.)kg1.61.61.72.01.62.02.02.13.03.83.03.8
    HeightHmm272727272727273036363636
    DIMENSIONS - FLANGE...........
    Flange diameterDmm---115-115140-148-148
    Hole circle diameterKmm---85-85100-110-110
    Number of screwholespcs---4-44-4-4
    Screwhole diameterD1mm---14-1418-18-18
    HeightHmm---50-5062.5-69-69
    HeightH1mm---84-8484-87-87
    WidthFmm---100-100125-138-138
    Weight with flanges (approx.)kg---3.4-3.44.6-6.3-6.3
  • Typical error graph