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 1024 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.

Information pursuant to Article 33 (1) of Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006:
This product series contains components with the following substances in a concentration of more than 0.1% weight by weight
(w/w):
- Lead (only for the flange variants)
- Lead titanium zirconium oxide

  • DN 15 to 50
  • 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 ... +90
    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
    Battery lifetime T701/T901Up 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 1024 daily values +32 monthly values and two annual due dates
    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 50Volume (m³ + 3 decimal places) and flow rate (m³/h + 3 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 - billing value indication - and more display loop options to choose from.
  • Interfaces - Overview
    OpticalFor switching the display loop and configuring / reading the meter via IZAR@MOBILE
    Radio434 or 868 MHz, Open Metering radio as standard (R3) for mobile reading sent every 14 / 64 seconds, long range radio frame (R4 / R4+ / mioty4metering) for fixed network sent every 5 / 15 / 60 minutes
    M-Bus2400 baud, cable length 1.5 m, power supply only via built-in battery - can be combined with two Pulse outputs
    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
  • 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 width50 - 125 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
  • Technical Data
    Nominal diameterDNmm1515202020202020
    Permanent flow rateQ3m3/h2.52.52.52.54444
    Overall lengthLmm110165130190105130165190
    Dynamic (Q3/Q1)R800800800800400800800800
    Overload flow rateQ4m3/h3.1253.1253.1253.1255555
    Transitional flow rateQ2l/h555516888
    Minimum flow rateQ1l/h3.133.133.133.1310555
    Starting flow ratel/h1.41.41.41.43.02.52.52.5
    Pressure loss at Q3bar0.460.460.40.40.550.40.40.4
    Pressure loss at Q4bar0.720.720.630.630.860.630.630.63
    Maximum flow rate2Qhighm³/h4.374.374.374.377777
    Flow rate at ΔP = 1 bar3.693.693.953.955.395.395.395.39
    2 Outlet pressure minimum 3 bar, maximum 100 hours per year, closed pipeline network
    3 Please see table DIMENSIONS
  • Approval
    ApprovalMID DE-19-MI001-PTB012
    Dynamic range (Q3/Q1)RUp to 800
    StandardsEN 4064, EN 14154, OIML R49
    Sanitary conformityKTW/W270, ACS, WRAS, Belgaqua, KIWA Netherlands, OTH, PZH, SVGW
  • Dynamic Range (R=Q3/Q1)
    Q3 2.5 m³/h - T30 / T50R160; 800 (400 for L 115 mm)
    Q3 2.5 m³/h - T70 / T90R160; 400; 800H / 400 V (250 for L 115 mm)
    Q3 4 m³/h - T30R160; 400; 800 (630 for L 105 mm and 115 mm)
    Q3 4 m³/h - T50 / T70 / T90R160; 400; 800H / 400V (630H for L 105 mm and 115 mm)
    Q3 6.3 m³/h - T30R
    Q3 6.3 m³/h - T50 / T70 / T90R
    Q3 10 m³/h - DN 25, DN 32 - T30R
    Q3 10 m³/h - DN 25, DN 32 - T50 / T70 / T90R
    Q3 16 m³/h - DN 40 - T30R
    Q3 16 m³/h - DN 40 - T50 / T70 / T90R
    Q3 16 m³/h - DN 50R
    Q3 25 m³/h - DN 50R
  • Dimensions
    Nominal diameterDNmm1515202020202020
    Permanent flow rateQ3m3/h2.52.52.52.54444
    Overall lengthLmm110165130190105130165190
    Counter lengthL1mm8989898989898989
    Counter widthBmm8989898989898989
    DIMENSIONS - THREAD
    Overall length with couplingL2mm190245230290205230295290
    Connection thread on meterInchG¾BG¾BG1BG1BG1BG1BG1¼BG1B
    Connection thread of couplingInch4R1
    HeightH1mm7171747474747474
    Weight without coupling (approx.)kg0.70.80.80.90.80.81.00.9
    Weight with coupling (approx.)kg1.11.21.21.31.21.21.61.3
    HeightHmm1818212121212721
    DIMENSIONS - FLANGE
    Flange diameterDmm
    Hole circle diameterKmm
    Number of screwholespcs
    Screwhole diameterD1mm
    HeightHmm
    HeightH1mm
    WidthFmm
    Weight with flanges (approx.)kg
    3 Further version with connection thread on meter inlet G7/8B and meter outlet G3/4B on request.
    4 Wrench size should not be bigger than 38 mm
  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph
  • Technical Data
    Nominal diameterDNmm252525252532404050505050
    Permanent flow rateQ3m3/h6.36.36.3101010161616162525
    Overall lengthLmm135150260150260260200300270300270300
    Dynamic (Q3/Q1)R400400400800800800800800250250400400
    Overload flow rateQ4m3/h7.877.877.8712.512.512.52020202031.2531.25
    Transitional flow rateQ2l/h25.225.225.22020203232102102100100
    Minimum flow rateQ1l/h15.815.815.812.512.512.52020646462.562.5
    Starting flow ratel/h5555558.78.725252525
    Pressure loss at Q3bar0.220.220.220.540.540.540.50.50.10.10.250.25
    Pressure loss at Q4bar0.340.340.340.840.840.840.780.780.190.190.450.45
    Maximum flow rate2Qhighm³/h11.0211.0211.0217.517.517.5282832.1332.1332.1332.13
    Flow rate at ΔP = 1 bar13.4313.4313.4313.4313.4313.4322.6322.6346.046.046.046.0
    2 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
    StandardsEN 4064, EN 14154, OIML R49
    Sanitary conformityKTW/W270, ACS, WRAS, Belgaqua, KIWA Netherlands, OTH, PZH, SVGW
  • Dynamic Range (R=Q3/Q1)
    Q3 2.5 m³/h - T30 / T50R
    Q3 2.5 m³/h - T70 / T90R
    Q3 4 m³/h - T30R
    Q3 4 m³/h - T50 / T70 / T90R
    Q3 6.3 m³/h - T30R160; 400
    Q3 6.3 m³/h - T50 / T70 / T90R160; 400H / 250V
    Q3 10 m³/h - DN 25, DN 32 - T30R160; 400; 800
    Q3 10 m³/h - DN 25, DN 32 - T50 / T70 / T90R160; 400; 800H / 400V
    Q3 16 m³/h - DN 40 - T30R160; 400; 800
    Q3 16 m³/h - DN 40 - T50 / T70 / T90R160; 400; 800H / 400 V
    Q3 16 m³/h - DN 50R250
    Q3 25 m³/h - DN 50R400
  • Dimensions
    Nominal diameterDNmm252525252532404050505050
    Permanent flow rateQ3m3/h6.36.36.3101010161616162525
    Overall lengthLmm135150260150260260200300270300270300
    Counter lengthL1mm898989898989969692929292
    Counter widthBmm898989898989898994949494
    DIMENSIONS - THREAD............
    Overall length with couplingL2mm255270380270380380340440390420390420
    Connection thread on meterInchG1¼BG1¼BG1¼BG1¼BG1¼BG1½BG2BG2BG2½BG2½BG2½BG2½B
    Connection thread of couplingInchR1R1R1R1R1R1¼R1½R1½R2R2R2R2
    HeightH1mm787878787878828290909090
    Weight without coupling (approx.)kg1.01.01.41.01.41.51.82.63.94.053.94.05
    Weight with coupling (approx.)kg1.61.62.01.62.02.13.03.85.55.655.55.65
    HeightHmm272727272730363641414141
    DIMENSIONS - FLANGE............
    Flange diameterDmm--115-115140-148----
    Hole circle diameterKmm--85-85100-110----
    Number of screwholespcs--4-44-4----
    Screwhole diameterD1mm--14-1418-18----
    HeightHmm--50-5062.5-69----
    HeightH1mm--84-8484-87----
    WidthFmm--100-100125-138----
    Weight with flanges (approx.)kg--3.4-3.44.6-6.3----
  • Pressure loss graph / Typical error graph
    Pressure loss graphTypical error graph