HYDRUS

ULTRASONIC METER

Static ultrasonic water meter for accurate measuring and recording for all applications of water supply.

• Ultrasonic water meter with long-term stability under difficult conditions (no measurement of air and insensitive against sedimentation)
• Higher performance than class D requirements
• Metrological class 2 and dynamic range up to R 400
• Compliant with MID, OIML R49 and EN 14154
• Mounting in any installation position, no calming sections required
• Housing with thread connection lead-free brass
• IP68 suitable for outdoor installations
• Certified for drinking water (KTW and ACS)
• Wired M-Bus, Radio OMS, Radio/L-Bus and Pulse interface available
• Radio communication based on Open Metering telegram (OMS-Generation 3, Profile A, or OMS-Generation 4, Profile B, selectable)
• Highest data security for AMR communication
• Displaying of error- and alarm codes, including leakage detection
• Battery lifetime up to 16 years
• Data logging capabilities to record up to 1.024 daily values + 32 configurable values (hourly, daily, weekly, monthly) and an annual due date

• General

  Medium temperature range		°C	0.1 ... 90
  Ambient operating temperature		°C	1 ... 70
  Ambient storage temperature		°C	-20 ... +70 (>35 °C max. 4 weeks)
  Nominal pressure	PN	bar	16
  Power supply			Two 3.6 VDC lithium-batteries (only one battery with M-Bus possible)
  Battery lifetime T301/T501			Up to 12 years (one battery), up to 16 years (two batteries)
  Battery lifetime T901			Up to 12 years (all interfaces)
  Interfaces			Optical, radio 434 or 868 MHz, M-Bus, L-Bus, pulse
  Data storage			For events and for consumption values
  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, 8-digit
  Units DN 15 - DN 32			Flow and volume (m³ + 3 digits after the comma)
  Units DN 40 + DN 50			Flow (m³ + 3 digits after the comma); Volume (m³ + 2 digits after the comma)
  Values displayed (depending on configuration)			Volume2 - flow - mediums temperature - display test2 - current error and alarm status2 - date - primary and secondary address - radio signal ON/OFF - battery lifetime2 - accounting day - error hour counter - pulse values - software checksum2

  ² Display according to approval (always on)
• Interfaces - Overview

  Optical			For configuration of display information and radio telegram, to switch to the various display loops
  Radio			434 or 868 MHz, real data telegram (configurable), Open Metering Standard (OMS-Generation 3, Profile A, or OMS-Generation 4, Profile B, selectable)
  M-Bus			2400 Baud (adjustable to 300 Baud), configurable telegram, cable length 1.5 m, power supply only via built-in battery
  L-Bus			In combination with radio, cable length 1.5 m
  Pulse (Open collector)			Two configurable pulse outputs, cable length 1.5 m

• Volume- / Pulse open collector

  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
  Pulse rates		l/pulse	Decadic 0.1 ... 100
  Pulse output 1 variants			Total volume or forward volume
  Pulse output 2 variants			Forward volume, direction3 or error
  Pulse duration			Depending on device configuration4
  Pulse break			Depending on device configuration4
  Pulse frequency			Depending on device configuration4

  ³ when total volume on pulse output 1, only direction possible on pulse output 2
  ⁴ detailed description on request