SHARKY 775
ULTRASONIC COMPACT ENERGY METER
Application
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...
Features
- 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
- Programmable installation side (in option)
-
Basic features
Application Heating - bifunctional (heating/cooling) | Heat-transfer fluid: glycol-free water Approval MID (DE-10-MI004-PTB013) Environmental class (EN 1434) Class C Ambient class (MID) Class E2 + M2 Ambient operating temperature °C +5 ... +55 (<35 °C have a positive lifetime effect) Ambient storage temperature °C -25 ... +60 (>35 °C max. 4 weeks) Communication 3 communication interfaces (e. g. M-Bus or integrated radio + 2 communication modules) Integrated Radio Optional Frequency band 868 or 434 MHz Type of radio telegram Open Metering Standard (OMS), optional individual encryption key Transmission data updating Online - no time delay between value measurement and data transmission Data transmission Unidirectional Sending interval With A-cell: 180 s (up to 10.5 years lifetime); with D-cell: ~12 s (up to 16 years lifetime); with mains unit: ~12 s; depending on length of telegram (duty cycle) Test possibilities Via display, optical test pulses, test output or via NOWA software *Standard conditions of use and temperature. Theoretical life, with no guarantee. -
Reach
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 (CAS no.: 7439-92-1)
- Lead titanium zirconium oxide (CAS no.: 12626-81-2) -
Basic features - Calculator
Protection class IP 54 Battery supply 3.6 VDC A-cell up to 10.5 years lifetime (depending on configuration); 3.6 VDC D-cell up to 16 years lifetime Mains supply 24 VAC (50 - 60 Hz); 230 VAC (50 - 60 Hz) Temperature sensor type Pt 100 or Pt 500 with 2-wire leads; Ø 5.2 / 6 mm or direct sensor Cable length of temperature sensor Pt 100: 1.9 m; Pt 500: 1.9 / 2.9 / 4.9 / 9.9 m Absolute temperature range calculator Θ °C 1 ... 180 Measuring cycle - flow With mains supply: ⅛ s; with A-cell battery: 1 s; with D-cell battery: 1 s Measuring cycle - temperature sensor T s With mains supply: 2 s; with A-cell battery: 16 s; with D-cell battery: 4 s Starting temperature difference ΔΘ K 0.125 Min. temperature difference ΔΘmin K 3 Max. temperature difference ΔΘmax K 120 / 175 (heating) | 50 (cooling) Interfaces standard Optical ZVEI interface Interfaces optional 2 Slots for modules with M-Bus, L-Bus, LON works, LoRa, MOD Bus, RS232, RS485, pulse output, pulse input, combined pulse in-/output or analogue output Extensive readable data memory Periodical log1; 3 history logs; event memory 1 Programmable storage interval (daily, weekly, monthly, ...) -
Basic features - Flow sensor
Mounting position flow sensor Any position, calming sections not necessary, inlet installation / outlet installation / in field programmable Protection class flow sensor Heating: IP 54; heating with cooling tariff: IP 65 Material of the flow sensor body Brass or spheroidal cast iron (only qp 15 up to qp 100 m³/h) Temperature range heating °C 5 ... 105 / 130 / 150 (depends on meter size and material) Temperature range cooling °C 5 ... 50 Temperature range heating/cooling meter °C 5 ... 105 -
Display
Display indication LCD, 8-digit Units MWh - kWh - GJ - Gcal - MBtu - gal - GPM - °C - °F - m³ - m³/h Total values 99,999,999 - 9,999,999.9 - 999,999.99 - 99,999.999 (depending on the nominal diameter) Displayed values Energy - Volume - Flow rate - Power - Temperature -
Interfaces
Optical ZVEI interface for communication and testing, M-Bus protocol M-Bus Configurable telegram, according to EN13757-3, two wires with non polarity, auto baud detect (300 and 2400 baud), one M-Bus load Wireless M-Bus Open Metering Standard (OMS), Generation 3 Profile A or Generation 4 Profile B; frequency band 868 or 434 MHz L-Bus Adapter for external radio module, configurable telegram, according to EN13757-3, data reading and parametrization via 2 wires with polarity reversal protection Modbus RTU Polarity independent, Voltage 12 - 24 V AC/DC, <150 mW; protocol - Modbus RTU, Channel - EIA-485 (galvanic isolated), Baud rate 1,200 ... 115,200. The default communication: 9,600 bps Baud rate, 8N1 data format, Modbus Slave ID - 1 LonWorks Polarity independent; Voltage 12 - 24 V AC/DC, <150 mW; Channel - TP/FT-10, Baud rate - 78 kbits per second, Data format - Differential Manchester Coding LoRa Five different telegrams can be selected via OTC App (AppStore Android). Up to 11 years lifetime with own battery and the modern ECO Mode. Transmission interval varies with the connection quality. RS232 Serial interface for communication with external devices, a special data cable is required, M-Bus protocol, 300 and 2,400 baud RS485 Serial interface for communication with external devices, power supply with 12 V ± 5 V, M-Bus protocol, 2,400 baud Pulse output Module 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), configurable via IZAR@MOBILE 2 software Pulse input Module with 2 pulse inputs, max. 20 Hz, configurable via IZAR@MOBILE 2 software, data can be transferred remotely Combined pulse in-/output Module with 2 pulse inputs and 1 pulse output, configurable via IZAR@MOBILE 2 software, needed for leak detection Analogue output Module for 4 ... 20 mA with 2 programmable passive outputs, programmable value in case of error -
Technical data flow sensor
Nominal flow rate qp m3/h 0.6 1.5 1.5 2.5 6 6 10 15 25 40 60 100 Nominal diameter DN mm 15 15 20 20 25 32 40 50 65 80 100 100 Overall length L mm 110 110 130 130 260 260 300 270 300 300 360 360 Starting flow rate l/h 1 2.5 2.5 4 10 10 20 40 50 80 120 120 Minimum flow rate (DR 1:250) qi l/h - 6 6 10 24 24 401 601 1001 160 2401 2401 Minimum flow rate (DR 1:100) qi l/h 6 15 15 25 60 60 100 150 250 400 600 1,000 Maximum flow rate qs m3/h 1.2 3 3 5 12 12 20 30 50 80 120 120 Overload flow rate m3/h 2.5 4.6 4.6 6.7 18.4 18.4 24 36 60 90 132 132 Operating pressure PN bar 16/25 16/25 16/25 16/25 16/25 16/25 16/25 16/25 16/25 16/25 25 25 Pressure loss at qp Δp mbar 95 120 75 100 128 128 140 134 120 140 130 210 Temp. range heating - brass body °C 5 ... 130 5 ... 130 5 ... 130 5 ... 130 5 ... 150 5 ... 150 5 ... 150 5 ... 150 5 ... 150 5 ... 150 5 ... 150 5 ... 150 Temp. range heating - spheroidal cast iron body °C - - - - - - - 5 ... 105 5 ... 105 5 ... 105 5 ... 105 5 ... 105 kv value (qp² (m³/h) = kv² x Δp (bar)) 1.95 4.33 5.48 7.91 14.77 16.77 26.73 40.09 91.29 141.42 219.09 218.22 1 Only for horizontal installation -
Dimensions thread version
Nominal flow rate qp m3/h 0.6 1.5 1.5 2.5 6 6 10 15 25 40 60 100 Nominal diameter DN mm 15 15 20 20 25 32 40 50 65 80 100 100 Overall length L mm 110 110 130 130 260 260 300 270 300 300 360 360 Overall length with coupling L2 mm 190 190 230 230 380 380 440 - - - - - Length of calculator L1 mm 150 150 150 150 150 150 150 - - - - - Height H mm 14.5 14.5 18 18 23 23 33 - - - - - Height H1 mm 82 82 84 84 88.5 88.5 94 - - - - - Height of calculator H2 mm 54 54 54 54 54 54 54 - - - - - Width of calculator B mm 100 100 100 100 100 100 100 - - - - - Connection thread on meter Inch G¾B G¾B G1B G1B G1¼B G1½B G2B - - - - - Connection thread of coupling Inch R½ R½ R¾ R¾ R1 R1¼ R1½ - - - - - Weight1 kg 0.76 0.76 0.85 0.85 1.5 1.5 3.1 - - - - - 1 Meter with A-cell, without modules, 1.4 m cable length, 1.9 m cable length of temperature sensor Ø 5.2 mm -
Dimensions flange version
Nominal flow rate qp m3/h 0.6 1.5 1.5 2.5 6 6 10 15 25 40 60 100 Nominal diameter DN mm 15 15 20 20 25 32 40 50 65 80 100 100 Overall length L mm 110 110 130 130 260 260 300 270 300 300 360 360 Length of calculator L1 mm - - - - 150 150 150 150 150 150 150 150 Height H mm - - - - 50 62.5 69 73.5 85 92.5 108 108 Height H1 mm - - - - 88.5 88.5 94 99 106.5 114 119 119 Height of calculator H2 mm - - - - 54 54 54 54 54 54 54 54 Width of calculator B mm - - - - 100 100 100 100 100 100 100 100 Flange dimension F mm - - - - 100 125 138 147 170 185 216 216 Flange diameter D mm - - - - 114 139 148 163 184 200 235 235 Hole circle diameter K mm - - - - 85 100 110 125 145 160 190 190 Screwhole diameter D1 mm - - - - 14 18 18 18 18 19 22 22 Number of screwholes pcs - - - - 4 4 4 4 8 8 8 8 Weight brass body kg - - - - 3.5 4.8 6.4 7.0 8.9 10.9 16.4 16.4 Weight grey cast iron body kg - - - - - - - 5.9 7.7 9.6 15.2 15.2 -
Pressure loss graph / typical error graph
Pressure loss graph
Typical error graph
