HYDRUS 2.0 RESIDENTIAL

Application

HYDRUS 2.0 RESIDENTIAL 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 RESIDENTIAL 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 RESIDENTIAL 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.

Features

• DN 15 to 50
• MID approval up to R=800
• IP 68
• OMS radio, Wired M-Bus/Pulse x2, OMS radio/L-Bus/Pulse, Pulse x2, Remote radio with IZAR BE PULSE
• Display with symbols and error codes
• Alarm functions
• Battery lifetime up to 16 years
• U0 / D0, no calming section needed

• Privacy

  The HYDRUS 2.0 RESIDENTIAL saves 512 consumption values with a daily interval. This data can be read locally and accessed only by using the IZAR@MOBILE. As a second logging, a small amount of 32 consumption values can be stored. 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 (only for the flange variants) - (CAS no.: 7439-92-1)
  - 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)
  Environmental class			O (Outdoors)
  Mechanical environmental class			M2
  Electromagnetic environmental class			E2
  Nominal pressure	PN	bar	16
  Power supply			2x 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 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 Theorical 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 15 - DN 50			Volume (m³ + 3 digits 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 rate - 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 symbol
• Communication interfaces

  Optical			For switching the display menu, reading and configuration with IZAR@MOBILE
  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 15 minutes
  M-Bus			2,400 baud, cable length 1.5 m*, power supply only via built-in battery
  L-Bus			Only active when radio is deactivated
  Pulse (Open drain)			1 or 2 pulse outputs with cable length 1.5 m*, Pulse output soldered with IZAR BE PULSE cable lenght 1.5m*

  *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		l/pulse	1 / 10 (depending on nominal diameter)
  Configuration pulse output 1			Total volume or forward volume
  Configuration pulse output 2			Flow direction, error, reverse volume or forward volume
  Pulse frequency			Max. frequency 10 Hz
  Pulse width			50 - 125 ms
• Available versions

  OMS radio + Pulse / L-Bus + Pulse			3 wires - radio and forward volume on pulse output / 3 wires - L-Bus and forward volume on pulse output
  Wired M-Bus + Pulses x2			5 wires - forward volume on pulse output 1 and reverse volume on pulse output 2
  Pulses x2			4 wires - total volume on pulse output 1 and direction on pulse output 2 with fraud
  Remote radio with IZAR BE PULSE			With IZAR BE PULSE completly soldered to HYDRUS 2 to put a radio clip-on module (LoRaWAN, Sigfox, Wize, OMS)