HYDRUS 2.0 RESIDENTIAL

HYDRUS 2.0 RESIDENTIAL

ULTRASONIC METER

HYDRUS 2.0 RESIDENTIAL is a static water meter operating on ultrasonic measuring technology. This technology enables accurate calculation of water consumption with long-term stability and eliminates measuring deviations caused by sand, suspended particles, scale or air pockets. Moreover it does not require any earthing.
Developed within the framework of the MID, HYDRUS 2.0 RESIDENTIAL complies with the European regulations and holds sanitary conformity certificates (ACS, WRAS, KTW/W270 and others).
Its integrated radio enables remote reading of the meter's index and alarms both in mobile (walk-by, drive-by, passive drive-by) and fixed network mode.
HYDRUS 2.0 RESIDENTIAL offers a wide choice of connectivities compatible with the different IZAR reading modes.
A complete Diehl Metering solution is thus available to meet your needs.

The HYDRUS 2.0 RESIDENTIAL 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. Both the radio protocol and the optical interface are encrypted by default.

  • DN 15 to 40
  • MID approval up to R=800
  • IP 68
  • Wireless M-Bus radio, Wired M-Bus/Pulse/Pulse, Wireless M-Bus radio/L-Bus/Pulse, IZAR BE PULSE compatible, M-Bus, Pulse/Pulse
  • Display with alarm codes including leakage detection, radio on and error codes
  • Battery lifetime up to 16 years
  • 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 supply2x 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 Theorical lifetime, 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 - 32Volume (m³ + 3 digits after decimal point) and flow rate (m³/h + 3 digits after decimal point)
    Units displayed DN 40Volume (m³ + 3 digits after decimal point) and flow rate (m³/h + 2 digits after decimal point)
    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 - flow direction - display counter - low battery indication - leakage indication - metrological log access - radio signal ON/OFF - alarm indication - calibrated value
  • Communication interfaces
    OpticalFor switching the display loop, reading and configuration with IZAR@MOBILE 2
    Radio434 or 868 MHz, Open Metering Standard radio frame for mobile reading sent every 14 seconds, long range radio frame for fixed network sent every 15 minutes
    M-Bus2,400 baud, cable length 1.5 m*, power supply only via built-in battery - can be combined with 2 pulse outputs
    L-BusIn combination with radio, cable length 1.5 m* (only 1 interface communicating at the same time) and 1 pulse output
    Pulse (Open drain)2 pulse outputs, or 1 pulse and 1 L-Bus output, pulse cable length 1.5 m*
    *May vary by up to ± 3.5% due to manufacturing tolerances.
  • Security
    VersionsOMS Generation 3 - Profile A or OMS Generation 4 - Profile B
  • 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/pulse1 / 10 (depending on nominal diameter)
    Configuration pulse output 1Total volume or forward volume
    Configuration pulse output 2Flow direction or error, reverse volume, forward volume
    Pulse frequencyMax. frequency 10 Hz
    Pulse width125 ms
  • Available versions
    Wireless M-Bus radio/Pulse/L-Bus3 wires - only forward volume for pulse output 2 (minimum 10L/pulse)
    Wireless M-Bus radio onlywithout wire
    M-Bus only2 wires
    M-Bus/Pulse/Pulse5 wires - forward volume on pulse output 1 and reverse volume on pulse output 2
    Pulse/Pulse3 wires - total volume on pulse output 1 and direction on pulse output 2
    IZAR BE PULSE compatible4 wires - total volume on pulse output 1 and direction on pulse output 2 with fraud
  • 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 2Qhighm³/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
    2 Outlet pressure minimum 3 bars, maximum 100 hours per year, closed pipeline network
  • Approval
    ApprovalMID DE-19-MI001-PTB012
    Dynamic range (Q3/Q1)RUp to R=800
    StandardsISO 4064 | EN 14154 | OIML R49
    Sanitary conformityKTW/W270 | ACS | WRAS
  • Dynamic Range (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
    H=horizontal installation position / V=vertical installation position
  • 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 couplingInch3R1
    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
    3 Wrench size should not exceed 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 2Qhighm³/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
    2 Outlet pressure minimum 3 bars, maximum 100 hours per year, closed pipeline network
  • Approval
    ApprovalMID DE-19-MI001-PTB012
    Dynamic range (Q3/Q1)RUp to R=800
    StandardsISO 4064 | EN 14154 | OIML R49
    Sanitary conformityKTW/W270 | ACS | WRAS
  • Dynamic Range (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
    H=horizontal installation position / V=vertical installation position
  • 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