SHARKY Solar 775

ULTRASONIC COMPACT ENERGY METER

Application

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...

Features

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

SHARKY Solar 775

General

Application			Heating - heating with cooling tariff
Medium			TYFOCOR LS
Approval			-
Accuracy			±10 %
Mounting position flow sensor			Any position, no straight length
Protection class flow sensor			Heating: IP 54 \| Heating with cooling tariff : IP 65
Battery supply			3.6 VDC D-cell (up to 16 years lifetime*)
Mains supply			24 VAC; 230 VAC
Temperature sensor type			Pt 500 with 2-wire leads; Ø 5.2 direct sensor
Cable length of temperature sensor			Pt 500: 2 / 3 / 5 / 10 m
Volume measuring cycle			With mains unit: ⅛ s \| with D-cell battery: 1 s
Test possibilities			Via display, optical test pulses, test output or via NOWA software
Material of the flow sensor body			Brass

* Standard conditions of use and temperature. Theoretical life, with no guarantee.

Calculator - Basic features

Environmental class		Class C
Ambient class		Class E2 + M2
Ambient temperature	°C	+5 ... +55
Ambient storage temperature	°C	-25 ... +60 (>35 °C max. 4 weeks)
Protection class		IP 54
Communication		3 communication interfaces (e. g. M-Bus + M-Bus + integr. radio; 2 primary addresses, 1 secondary address)
Integrated Radio		Optional
Interfaces standard		Optical ZVEI interface
Interfaces optional		2 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 memory		Periodical log¹\| history log \| event memory

¹ Programmable storage interval (daily, weekly, monthly, ...)

Calculator - Integrated Radio

Frequency band			868 or 434 MHz
Type of radio telegram			Real Data or Open Metering Standard (OMS)
Transmission data updating			Online
Data transmission			Unidirectional
Sending interval			12 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 indication			LCD, 8-digit
Units			MWh - kWh - GJ - Gcal - MBtu - gal - GPM - °C - °F - m³ - m³/h
Display capacity			99,999,999 - 9,999,999.9 - 999,999.99 - 99,999.999 (depending on the nominal diameter)
Values displayed			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, 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-Bus			Adapter for external radio module, configurable telegram, according to EN13757-3, data reading and parametrization via 2 wires with polarity reversal protection
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), ratio: pulse duration/pulse break ~ 1:1, 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

Temperature input

Measuring cycle	T	s	With main units: 2 s \| with D-cell battery: 4 s
Starting temperature difference	ΔΘ	K	0.125
Min. temperature difference	ΔΘ_min	K	3
Max. temperature difference	ΔΘ_max	K	175
Absolute temperature measuring range	Θ	°C	0 ... +130

Technical data flow sensor

Nominal flow rate	q_p	m^³/h	1.5	2.5
Nominal diameter	DN	mm	15	20
Overall length	L	mm	110	130
Starting flow rate		l/h	2.5	4
Minimum flow rate	q_i	l/h	6	10
Maximum flow rate	q_s	m³/h	3	5
Overload flow rate		m³/h	4.6	6.7
Operating pressure	PN	bar	16	16
Pressure loss at q_p	Δp	mbar	75	100
Temp. range		°C	+5 ... +130	+5 ... +130
Kvs value (Δp=Q²/Kvs²)			5.48	7.91

Dimensions thread version

Nominal flow rate	q_p	m^³/h	1.5	2.5
Nominal diameter	DN	mm	15	20
Overall length	L	mm	110	130
Overall length with coupling	L2	mm	190	230
Length of calculator	L1	mm	150	150
Height	H	mm	14.5	18
Height	H1	mm	82	84
Height of calculator	H2	mm	54	54
Width of calculator	B	mm	100	100
Connection thread on meter		Inch	G¾B	G1B
Connection thread of coupling		Inch	R½	R¾
Weight		kg	0.76	0.85

Pressure loss graph

Pressure loss graph