HYDRUS 2.0 BULK

ULTRASONIC METER

HYDRUS 2.0 BULK is a static water meter operating on ultrasonic measuring technology. This technology enables accurate calculation of water consumption with long-term stability and eliminates measuring deviations caused by sand, suspended particles, scale or air pockets. Moreover it does not require any earthing.
Developed within the framework of the MID, HYDRUS 2.0 BULK complies with the European regulations and holds sanitary conformity certificates (ACS, WRAS, BELGAQUA, DM174 and others). The meter is also designed for cold and hot water.
Its integrated radio enables remote reading of the meter's index and alarms both in mobile (walk-by, drive-by, passive drive-by) and fixed network mode.
HYDRUS 2.0 BULK offers a wide choice of connectivities compatible with the different IZAR reading modes.
A complete Diehl Metering solution is thus available to meet your needs.

The HYDRUS 2.0 BULK saves 512 daily consumption values. This data can be read locally and accessed only by using the IZAR@MOBILE 2. As a second logging, a small amount of 32 monthly consumption values can be stored. Both the radio protocol and the optical interface are encrypted by default.

• DN 50 to 200
• MID approval up to R=1,000
• IP 68
• Wireless M-Bus radio, Wired M-Bus/Pulse/Pulse, Wireless M-Bus radio/L-Bus/Pulse, Pulse (IZAR BE PULSE compatible)
• Display with symbols and error codes
• Self-monitoring function
• Battery lifetime up to 16 years

• Technical data

  Water temperature		°C	+0.1 ... +50 (T30 / T50) | +0.1 ... +90 (T90)
  Accuracy			Class 2 according to ISO 4064:2014 / OIML R49:2013
  Ambient operating temperature		°C	-10 ... +55
  Ambient storage temperature		°C	-10 ... +70 (>35 °C max. 4 weeks)
  Environmental class			O (Outdoors)
  Mechanical environmental class			M2
  Electromagnetic environmental class			E2
  Flow profile sensitivity class			U0/D0 (no calming sections required)
  Installation position			Horizontal, inclined 45°, inclined 90°, vertical
  Nominal pressure	PN	bar	16
  Pressure loss class	Δp	bar	0.16
  Power supply			3.6 V lithium battery (D-cell)
  Battery lifetime1			Up to 16 years (all communication interfaces)
  Communication interfaces			Optical, OMS wireless M-Bus 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 512 daily + 32 monthly values
  Protection class			IP 68

  ¹ Theoretical lifetime, 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 50 - 100			Volume (m³ + 2 digits after decimal point) and flow rate (m³/h + 3 digits after decimal point)
  Units displayed DN 125 - 200			Volume (m³ + 1 digit after decimal point) and flow rate (m³/h + 3 digits after decimal point)
  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 - flow direction - display counter - low battery indication - leakage indication - metrological log access - radio signal ON/OFF - alarm indication - billing value

• Communication interfaces

  Optical			For switching the display loop, reading and configuration with IZAR@MOBILE 2
  Radio			434 or 868 MHz, Open Metering Standard (OMS) radio frame (short frame) for mobile reading sent every 14 seconds, long range radio frame for fixed network sent every 5 minutes, extra long range radio frame for fixed network sent every 15 minutes
  M-Bus			2,400 baud, cable length 1.5 m*, power supply only via built-in battery - is combined with 2 pulse outputs
  L-Bus			In combination with radio, cable length 1.5 m* (only 1 interface communicating at the same time)
  Pulse (Open drain)			2 pulse outputs, or 1 pulse and 1 L-Bus output, pulse cable length 1.5 m*

  *May vary by up to ±3.5% due to manufacturing tolerances.
• Security

  Versions

  OMS Generation 3 - Profile A or OMS Generation 4 - Profile B

• 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 DN 50		l/pulse	1 / 10 / 100 / 1,000 (depending on nominal size)
  Pulse rates DN 65 - 150		l/pulse	10 / 100 / 1,000 (depending on nominal size)
  Pulse rates DN 200		l/pulse	100 / 1,000 (depending on nominal size)
  Configuration pulse output 1			Total volume or forward volume
  Configuration pulse output 2			Flow direction or error, reverse volume, forward volume
  Pulse frequency			Max. frequency 10 Hz
  Pulse width			50 ms

• Available versions

  Wireless M-Bus radio/Pulse/L-Bus			3 wires - only forward volume for pulse output 2 (minimum 10L/pulse)
  Wireless M-Bus radio only			without wire
  Wired M-Bus/Pulse/Pulse			5 wires - forward volume on pulse output 1 and reverse volume on pulse output 2
  Pulse (IZAR BE PULSE compatible)			4 wires - total volume on pulse output 1 and direction on pulse output 2 with fraud