SHARKY 774
ULTRASONIC COMPACT ENERGY METER
Application
The ultrasonic compact energy meter can be used for measuring the energy consumption in heating application for billing purposes.
Features
- Approval for ultrasonic meter with dynamic range of 1:100 (qi:qp) in class 2
- Improved power consumption, longer battery lifetime
- High long term stability, tested and verified at independent AGFW test
- Insensitive against dirt
- Extensive readable data memory
- M-Bus communication or 434 MHz integrated radio
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General
Application Heating Approval CMC / CPA class 2 Mounting position flow sensor Any position Protection class IP 65 Supply Battery 3.6 VDC, up to 12 years lifetime Temperature sensor type Pt 500 with 2-wire leads; Φ 5.2mm Temperature range medium °C 5 ... 105 Cable length of temperature sensor m 1.5 / 3 / 5 / 10 Volume measuring cycle s 2 Test possibilities Via display, optical test pulses, communication test -
Calculator-Basic features
Environmental class Class C Ambient operating temperature °C 5 ... 55 Ambient storage temperature °C -25 ... +60 (>35°, max. 4 weeks) M-Bus interface According to EN13757-3, GB/T26831, cable length 1.5 m Radio interface Optional, 434 MHz Optical interface ZVEI standard Extensive readable data memory History log; event memory -
Display
Display indication LCD, 8-digits Units kWh (MWh, GJ) Total values 99,999,999 (9,999,999.9 - 999,999.99 - 99,999.999) Values displayed Energy - Power - Volume - Flow rate - Temperature and more -
Interface
M-Bus According to EN 13757-3, GB/T 26831 for data reading and parametrization, auto baud detect (300 and 2400 baud) Radio Open Meter Standard (OMS), according to EN13757-4, GB/T 26831 -
Temperature input
Measuring cycle T s 16 Starting temperature difference ΔΘ K 0.125 Min. temperature difference ΔΘmin K 3 Max. temperature difference ΔΘmax K 102 Temperature range calculator Θ °C 1 ... 130 -
Technical data flow sensor
Nominal flow rate qp m3/h 1.5 2.5 3.5 3.5 6 6 10 Nominal diameter DN mm 15 25 25 32 25 32 40 Overall length L mm 110 130 260 260 260 260 300 Starting flow rate l/h 2.5 4 7 7 7 7 20 Minimum flow rate qi l/h 15 25 35 35 60 60 100 Maximum flow rate qs m3/h 3 5 7 7 12 12 20 Overload flow rate m3/h 4.6 6.7 18.4 18.4 18.4 18.4 24 Operating pressure PN bar 16 16 16 16 16 16 16 Pressure loss at qp Δp mbar 75 100 44 44 128 128 95 Temp. range heating °C 5...105 5 ... 105 5 ... 105 5 ... 105 5 ... 105 5 ... 105 5 ... 105 -
Dimensions thread version
Nominal flow rate qp m3/h 1.5 2.5 3.5 3.5 6 6 10 Nominal diameter DN mm 15 25 25 32 25 32 40 Overall length L mm 110 130 260 260 260 260 300 Overall length with coupling L2 mm 190 250 380 380 380 380 440 Length of calculator L1 mm 90 90 90 90 90 90 90 Height H mm 14.5 23 23 23 23 23 33 Height H1 mm 55 58 62.5 62.5 62.5 62.5 68 Height of calculator H2 mm 27 27 27 27 27 27 27 Height of calculator H3 mm 40 40 40 40 40 40 40 Width of calculator B mm 135 135 135 135 135 135 135 Connection thread on meter Inch G3/4B G5/4B G5/4B G3/2B G5/4B G3/2B G2B Connection thread of coupling Inch R1/2 R1 R1 R5/4 R1 R5/4 R3/2 Weight kg 0.70 0.88 1.53 1.53 1.53 1.53 3.13 -
Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
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Pressure loss graph/typical errorgraph
