SHARKY 775

SHARKY 775

ULTRASONIC COMPACT ENERGY METER

SHARKY 775 is a ultrasonic compact energy meter designed for measuring the energy consumption in heating and bifunctional (heating/cooling) application, for billing purposes. The measurement principle is static and based on the measurement of the transit time. Ultrasonic technology offers many benefits: no moving parts (prevents wear and tear of the metering components), low pressure loss, large metering dynamics and low start flowrate, insensitiveness to suspended particles...

  • MID approval in class 2 with dynamic range (qi:qp) up to 1:250 (depending on DN), standard 1:100
  • Heat-transfer fluid: water
  • Complete range from DN 15 qp 0.6 m³/h up to DN 100 qp 100 m³/h
  • Low power consumption enabling a long battery lifetime (up to 16 years)
  • Integrated radio option
  • Modular version, M-Bus, M-Bus RS232, M-Bus RS485, Modbus RTU RS485, Analog outputs 4-20mA, pulse outputs and inputs
  • General
    ApplicationHeating - bifunctional (heating/cooling) | Heat-transfer fluid: glycol-free water
    ApprovalMID (DE-10-MI004-PTB013)
    Mounting position flow sensorAny position, calming sections not necessary
    Protection class flow sensorHeating: IP 54 | Bifunctional (heating/cooling): IP 65
    Battery supply3.6 VDC- D-cell up to 16 years lifetime*
    Mains supply24 VAC; 230 VAC
    Temperature sensor typePt 500 with 2-wires ; Ø 5.2 mm or direct sensor
    Cable length of temperature sensorPt 500: 2 / 3 / 5 / 10 m
    Absolute temperature range calculatorΘ°C+1 ... +180
    Flow measuring cycleWith power supply: ⅛ s | with D-cell battery: 1 s
    Material of the flow sensor bodyBrass (qp 1.5 ... 10 m³/h) or cast iron (qp 15 ... 100 m³/h)
    Test possibilitiesVia display, optical test pulses, test output or via NOWA software
    *Standard conditions of use and temperature. Theoretical life, with no guarantee.
  • Calculator - Basic features
    Environmental class (EN 1434)Class C
    Ambient class (MID)Class E2 + M2
    Ambient operating temperature°C+5 ... +55
    Ambient storage temperature°C-25 ... +60 (>35 °C max. 4 weeks)
    Protection classIP 54
    Communication3 communication slots (e. g. M-Bus + M-Bus + integrated radio; 2 primary addresses, 1 secondary address)
    Integrated RadioOptional
    Interfaces standardOptical ZVEI interface
    Interfaces optional2 Slots for modules with M-Bus, L-Bus, RS232, RS485, pulse output, pulse input, combined pulse in-/output or analogue output
    Temperature range heating°C+5 ... +130 / +150 (depending on meter size)
    Temperature range cooling°C+5 ... +90
    Temperature range heating/cooling meter°C+5 ... +105
    Extensive readable data memoryPeriodical log1 | history log | event memory
    1 Programmable storage interval (daily, weekly, monthly, ...)
  • Calculator - Integrated Radio
    Frequency band868 or 434 MHz
    Type of radio telegramReal Data or Open Metering Standard (OMS)
    Transmission data updatingOnline - no time delay between value measurement and data transmission
    Data transmissionUnidirectional
    Sending interval12 s (up to 16 years lifetime*); depending on telegram length (duty cycle)
    *Standard conditions of use and temperature. Theoretical life, with no guarantee.
  • Display
    Display indicationLCD, 8-digit
    UnitsMWh - kWh - GJ - Gcal - MBtu - gal - GPM - °C - °F - m³ - m³/h
    Total values99,999,999 - 9,999,999.9 - 999,999.99 - 99,999.999 (depending on the nominal diameter)
    Displayed valuesEnergy - Volume - Flow rate - Power - Temperature
  • Interfaces
    OpticalZVEI interface for communication and testing, M-Bus protocol
    M-BusConfigurable telegram, according to EN13757-3, data reading and parametrization via 2 wires with polarity reversal protection, auto baud detect (300 and 2,400 baud), 2 M-Bus outputs with 2 primary adresses
    L-BusAdapter for external radio module, configurable telegram, according to EN13757-3, data reading and parametrization via 2 wires with polarity reversal protection
    RS232Serial interface for communication with external devices, a special data cable is required, M-Bus protocol, 300 and 2,400 baud
    RS485Serial interface for communication with external devices, power supply with 12 V ± 5 V, M-Bus protocol, 2,400 baud
    Pulse outputModule with 2 Open Collector pulse outputs (potential-free), output 1: 4 Hz (pulse width 125 ms) pulse or static conditions (e.g. errors); output 2: 200 Hz (pulse width ≥ 5 ms), ratio: pulse duration/pulse break ~ 1:1, configurable via IZAR@MOBILE 2 software
    Pulse inputModule with 2 pulse inputs, max. 20 Hz, configurable via IZAR@MOBILE 2 software, data can be transferred remotely
    Combined pulse in-/outputModule with 2 pulse inputs and 1 pulse output, configurable via IZAR@MOBILE 2 software, needed for leak detection
    Analogue outputModule for 4 ... 20 mA with 2 programmable passive outputs, programmable value in case of error
  • Temperature input
    Measuring cycleTsWith mains supply: 2 s | with D-cell battery: 4 s
    Starting temperature differenceΔΘK0.125
    Min. temperature differenceΔΘminK3
    Max. temperature differenceΔΘmaxK175
  • Technical data flow sensor
    Nominal flow rateqpm3/h0.61.51.52.5661015254060100
    Nominal diameterDNmm15152020253240506580100100
    Overall lengthLmm110110130130260260300270300300360360
    Starting flow ratel/h12.52.54101020405080120120
    Minimum flow rate (DR 1:250)qil/h-66102424401601100116024012401
    Minimum flow rate (DR 1:100)qil/h615152560601001502504006001,000
    Maximum flow rateqsm3/h1.2335121220305080120120
    Overload flow ratem3/h2.54.64.66.718.418.424366090132132
    Operating pressurePNbar16/2516/2516/2516/2516/2516/2516/2516/2516/2516/252525
    Pressure loss at qpΔpmbar9512075100128165140140758075210
    Temp. range heating°C5 ... 1305 ... 1305 ... 1305 ... 1305 ... 1505 ... 1505 ... 1505 ... 1505 ... 1505 ... 1505 ... 1505 ... 150
    Kvs value (Δp=Q2/Kvs2)1.954.335.487.9116.7714.7726.7340.0991.29141.42219.09218.22
    1 Only for horizontal installation
  • Dimensions thread version
    Nominal flow rateqpm3/h0.61.51.52.5661015254060100
    Nominal diameterDNmm15152020253240506580100100
    Overall lengthLmm110110130130260260300270300300360360
    Overall length with couplingL2mm190190230230380380440-----
    Length of calculatorL1mm150150150150150150150-----
    HeightHmm14.514.51818232333-----
    HeightH1mm8282848488.588.594-----
    Height of calculatorH2mm54545454545454-----
    Width of calculatorBmm100100100100100100100-----
    Connection thread on meterInchG¾BG¾BG1BG1BG1¼BG1½BG2B-----
    Connection thread of couplingInchR1R1¼R1½-----
    Weightkg0.760.760.850.851.51.53.1-----
  • Dimensions flange version
    Nominal flow rateqpm3/h0.61.51.52.5661015254060100
    Nominal diameterDNmm15152020253240506580100100
    Overall lengthLmm110110130130260260300270300300360360
    Length of calculatorL1mm----150150150150150150150150
    HeightHmm----5062.56973.58592.5108108
    HeightH1mm----88.588.59499106.5114119119
    Height of calculatorH2mm----5454545454545454
    Width of calculatorBmm----100100100100100100100100
    Flange dimensionFmm----100125138147170185216216
    Flange diameterDmm----114139148163184200235235
    Hole circle diameterKmm----85100110125145160190190
    Screwhole diameterD1mm----1418181818192222
    Number of screwholespcs----44448888
    Weight brass bodykg----3.54.86.47.08.910.916.416.4
    Weight grey cast iron bodykg-------5.97.79.615.215.2
  • Pressure loss graph / typical error graph
    Pressure loss graphTypical error graph