HYDRUS 2.0 Composite

ULTRASONIC METER

Application

HYDRUS 2.0 is a static ultrasonic water meter designed for all applications of domestic cold water supply enabling accurate measuring with long-term stability under difficult conditions (no measurement of air and insensitive to
sedimentation). Developed within the framework of the MID, it complies with the European regulations and holds sanitary conformity certificates (AoC DEU, ACS and others). The integrated communication function supports meter data provision via mobile reading (walk-by/drive-by/passive drive-by) or fixed network (upgrade without on-site configuration). In combination with Diehl Metering’s IZAR fixed network system, which stands out with excellent coverage, high data granularity and timeliness will be maintained. This is what makes it a high responsive infrastructure to take actions immediately.

Features

DN 15
MID approved with dynamic range up to R 800
IP 68 suitable for outdoor installations
Integrated radio communication based on Open Metering telegram (OMS Generation 3 or 4, Profile B)
Wired M-Bus/Pulse/Pulse, wireless M-Bus, wireless M-Bus in combination with wired L-Bus/Pulse interface
Display with error and alarm codes including leakage detection
Battery lifetime up to 16 years
U0 / D0, no need for calming sections

Privacy

The HYDRUS 2.0 saves 1024 consumption values with a daily interval. This data can be read locally and accessed only by using the IZAR@MOBILE 2. As a second logging, a small amount of 32 consumption values can be stored. The HYDRUS 2.0 has a minimal sending interval of about 14 seconds and uses the OMS Generation 3 or 4, Profile B security level. Both, the radio protocol and the optical interface are encrypted by default.
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 titanium zirconium oxide (CAS no.: 12626-81-2)

General

Medium temperature range		°C	+0.1 ... +90
Ambient operating temperature		°C	-10 ... +55
Ambient storage temperature		°C	-10 ... +70 (>35 °C max. 4 weeks)
Nominal pressure	PN	bar	16
Power supply			Two 3.6 VDC lithium batteries
Battery lifetime T30¹/T50¹			Up to 16 years
Battery lifetime T70¹/T90¹			Up to 16 years
Communication interfaces			Optical, OMS wM-Bus / Long range radio (R4, R4+, mioty® for Metering) 434 or 868 MHz, M-Bus, L-Bus and Pulse
Data storage			For errors, alarms and measuring values, data logging capabilities to record up to 1024 daily values +32 monthly values and two annual due dates
Protection class			IP 68

¹ Depends on the sending interval of the radio telegram, the telegram length and the ambient temperature at the installation

Technical data display

Display indication			LCD, 9-digit, additional symbols/display counter/unit
Units displayed DN 15			Volume (m³ + 3 decimal places) and flow rate (m³/h + 3 decimal places)
Values displayed			Display test - volume - battery lifetime - firmware version - software checksum - flow - current/continuous/historical error - alarm status - high resolution volume - due date - due date volume - reverse volume - display counter - low battery indication - leakage indication - metrological log access - radio signal ON/OFF - alarm indication - billing value indication - and more display loop options to choose from

Interfaces - Overview

Optical			For switching the display loop and configuring / reading the meter via IZAR@MOBILE
wMBus (R3)			434 or 868 MHz, Open Metering radio as standard (R3) for mobile reading sent every 14 / 64 seconds (default)
Long range radio R4 / R4+ / mioty® for Metering			434 or 868 MHz, OMS for fixed network sent every 5 / 15 / 60 minutes
M-Bus			2400 baud, cable length 1.5 m, power supply only via built-in battery - can be combined with two Pulse outputs
L-Bus			In combination with radio, cable length 1.5 m (only one interface communicating at the same time)
Pulse (Open drain)			Two Pulse outputs, or one Pulse and one L-Bus output, Pulse cable length 1.5 m

Security

wM-Bus (R3), R4, R4+, mioty® for Metering OMS Generation 3 or OMS Generation 4 Profile B, selectable

Volume / Pulse Open Drain

Max. input voltage	V	30
Max. input current	mA	27
Max. voltage drop at active output	V/mA	2/27
Max. current through inactive output	μA/V	5/30
Max. reverse voltage without destroying outputs	V	6 (in case current does not exceed 27 mA)
Pulse rates	l/pulse	Decadic 1 / 10 (depending on nominal diameter)
Pulse output 1 variants		Total volume or forward volume
Pulse output 2 variants		Flow direction or error, reverse volume
Pulse frequency		Max. frequency 10 Hz
Pulse width		50 - 125 ms

Possible communication interfaces

wM-Bus/Pulse/L-Bus 3 wire
wM-Bus only without wire
R4 / R4+ / mioty® for Metering without wire
M-Bus only 2 wire
M-Bus/Pulse/Pulse 5 wire
Pulse/Pulse 3 wire
IZAR BE PULSE 4 wire

DN 15

Technical data

Nominal diameter	DN	mm	15	15	20	20
Permanent flow rate	Q₃	m³/h	2.5	2.5	2.5	4
Overall length	L	mm	110	165	190	190
Dynamic (Q₃/Q₁)	R		800	800	800	800
Overload flow rate	Q₄	m³/h	3.125	3.125	3.125	5
Transitional flow rate	Q₂	l/h	5	5	5	8
Minimum flow rate	Q₁	l/h	3.13	3.13	3.13	5
Starting flow rate		l/h	1.4	1.4	1.4	2.5
Pressure loss at Q₃		bar	0.46	0.46	0.4	0.4
Pressure loss at Q₄		bar	0.72	0.72	0.63	0.63
Maximum flow rate²	Q_high	m³/h	4.37	4.37	4.37	7
Flow rate at ΔP = 1 bar			3.69	3.69	3.95	5.39

² Outlet pressure minimum 3 bar, maximum 100 hours per year, closed pipeline network
³ Please see table DIMENSIONS

Approval

Approval MID DE-19-MI001-PTB012
Dynamic range (Q₃/Q₁) R Up to 800
Standards EN 4064, EN 14154, OIML R49
Sanitary conformity AoC DEU, ACS, WRAS and others
Dynamic range (R=Q3/Q1)

Q₃ 1.6 m³/h - T30 / T50 R 400
Q₃ 1.6 m³/h - T70 / T90 R 400H; 250V
Q₃ 2.5 m³/h - T30 / T50 R 160; 800
Q₃ 2.5 m³/h - T70 / T90 R 160; 400; 800H / 400 V

Dimensions

Nominal diameter	DN	mm	15	15	20	20
Permanent flow rate	Q₃	m³/h	2.5	2.5	2.5	4
Overall length	L	mm	110	165	190	190
Counter length	L1	mm	89	89	89	89
Counter width	B	mm	89	89	89	89
Overall length with coupling	L2	mm	190	245	290	290
Connection thread on meter		Inch	G¾B	G¾B	G1B	G1B
Connection thread of coupling		Inch	R½	R½	R¾	R¾
Height	H1	mm	71	71	74	74
Weight without coupling (approx.)		kg	0.5	0.6	0.6	0.6
Weight with coupling (approx.)		kg	0.9	1.0	1.0	1.0
Height	H	mm	18	18	21	21

Pressure loss graph / Typical error graph

Pressure loss graph

Typical error graph

wM-Bus/Pulse/L-Bus			3 wire
wM-Bus only			without wire
R4 / R4+ / mioty® for Metering			without wire
M-Bus only			2 wire
M-Bus/Pulse/Pulse			5 wire
Pulse/Pulse			3 wire
IZAR BE PULSE			4 wire

Approval		MID DE-19-MI001-PTB012
Dynamic range (Q₃/Q₁)	R	Up to 800
Standards		EN 4064, EN 14154, OIML R49
Sanitary conformity		AoC DEU, ACS, WRAS and others

Q₃ 1.6 m³/h - T30 / T50	R	400
Q₃ 1.6 m³/h - T70 / T90	R	400H; 250V
Q₃ 2.5 m³/h - T30 / T50	R	160; 800
Q₃ 2.5 m³/h - T70 / T90	R	160; 400; 800H / 400 V