SHARKY Solar 775



SHARKY SOLAR 775 is a ultrasonic compact energy meter designed for measuring the energy consumption in solar systems. 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...


  • Designed for the specific heat transfer fluid TYFOCOR LS
  • Available in DN 15 and 20
  • Low power consumption enabling a long battery lifetime (up to 16 years)
  • Integrated radio option
  • Modular version, M-Bus, RS232, RS485, Analog outputs 4-20mA, pulse outputs and inputs
  • General
    ApplicationHeating - heating with cooling tariff
    MediumTYFOCOR LS
    Accuracy±10 %
    Mounting position flow sensorAny position, no straight length
    Protection class flow sensorHeating: IP 54 | Heating with cooling tariff : IP 65
    Battery supply3.6 VDC D-cell (up to 16 years lifetime*)
    Mains supply24 VAC; 230 VAC
    Temperature sensor typePt 500 with 2-wire leads; Ø 5.2 direct sensor
    Cable length of temperature sensorPt 500: 2 / 3 / 5 / 10 m
    Volume measuring cycleWith mains unit: ⅛ s | with D-cell battery: 1 s
    Test possibilitiesVia display, optical test pulses, test output or via NOWA software
    Material of the flow sensor bodyBrass
    * Standard conditions of use and temperature. Theoretical life, with no guarantee.
  • Calculator - Basic features
    Environmental classClass C
    Ambient classClass E2 + M2
    Ambient temperature°C+5 ... +55
    Ambient storage temperature°C-25 ... +60 (>35 °C max. 4 weeks)
    Protection classIP 54
    Communication3 communication interfaces (e. g. M-Bus + M-Bus + integr. radio; 2 primary addresses, 1 secondary address)
    Integrated RadioOptional
    Interfaces standardOptical ZVEI interface
    Interfaces optional2 Slots for modules M-Bus, RS232, RS485, pulse output, pulse input, combined pulse in-/output or analogue output
    Temperature range°C+5 ... +130
    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
    Data transmissionUnidirectional
    Sending interval12 s (up to 16 years lifetime*) depending on length of telegram (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
    Display capacity99,999,999 - 9,999,999.9 - 999,999.99 - 99,999.999 (depending on the nominal diameter)
    Values displayedEnergy - 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 addresses
    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 main units: 2 s | with D-cell battery: 4 s
    Starting temperature differenceΔΘK0.125
    Min. temperature differenceΔΘminK3
    Max. temperature differenceΔΘmaxK175
    Absolute temperature measuring rangeΘ°C0 ... +130
  • Technical data flow sensor
    Nominal flow rateqpm³/h1.52.5
    Nominal diameterDNmm1520
    Overall lengthLmm110130
    Starting flow ratel/h2.54
    Minimum flow rateqil/h610
    Maximum flow rateqsm3/h35
    Overload flow ratem3/h4.66.7
    Operating pressurePNbar1616
    Pressure loss at qpΔpmbar75100
    Temp. range°C+5 ... +130+5 ... +130
    Kvs value (Δp=Q2/Kvs2)5.487.91
  • Dimensions thread version
    Nominal flow rateqpm³/h1.52.5
    Nominal diameterDNmm1520
    Overall lengthLmm110130
    Overall length with couplingL2mm190230
    Length of calculatorL1mm150150
    Height of calculatorH2mm5454
    Width of calculatorBmm100100
    Connection thread on meterInchG¾BG1B
    Connection thread of couplingInch
  • Pressure loss graph