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HYDRUS

Product catalog summary

Application
The HYDRUS Ultrasonic Meter is designed for precise measurement and recording in water supply applications. It features real data communication, long-term stability, unlimited system capability, leak detection, and higher performance than class D requirements. It is suitable for outdoor installation and can be mounted in any position with a battery life of up to 16 years.

General Specifications
The meter operates within a medium temperature range of 1 to 50°C and can withstand temperatures up to 90°C. It functions in ambient temperatures from 1 to 70°C and can be stored between -20 to +70°C. It supports a nominal pressure of 16 bar and is powered by one or two 3.6 VDC lithium batteries, with a lifetime of up to 16 years. The meter includes interfaces such as optical, radio, M-Bus, L-Bus, and pulse, and has a protection class of IP 68.

Technical Data Display
The meter features an 8-digit LCD display showing flow and volume, medium temperature, error and alarm status, battery life, and more. It supports various units depending on the nominal diameter.

Interfaces Overview
The meter includes optical, radio (434 or 868 MHz), M-Bus, and pulse interfaces, allowing for configuration and data transmission.

Volume/Pulse Open Collector
Specifications include a maximum frequency of 20 Hz, input voltage of 30 V, and input current of 27 mA. The pulse duration and pause are both 25 ms at maximum frequency.

Technical Data for DN 15-20
Nominal flow rates range from 1.6 to 4 m³/h, with various dimensions and pressure loss values. The meter is approved under MID LNE 14586, OIML R49, EN 14154, TVO, KTW, and ACS standards.

Pulse Interface Specification for DN 15-20
Pulse rates range from 0.1 to 100 l/pulse, with configurable pulse values and variants.

Dimensions for DN 15-20
Details include nominal flow rates, diameters, lengths, connection threads, and weights with and without coupling.

Technical Data for DN 25-50
Nominal flow rates range from 6.3 to 25 m³/h, with corresponding dimensions and pressure loss values. The meter is approved under the same standards as DN 15-20.

Pulse Interface Specification for DN 25-50
Pulse rates are decadic, with configurable pulse values and variants.

Dimensions for DN 25-50
Includes details on nominal flow rates, diameters, lengths, connection threads, and weights with and without coupling or flanges.

Graphs
The document includes pressure loss and typical error graphs for both DN 15-20 and DN 25-50 meters.

Catalog excerpts

ULTRASONIC METER Static ultrasonic water meter for accurate measuring and recording for all applications of water supply. ► Real data communication, open metering telegram ► Long-term stability under difficult conditions ► Unlimited system capability Higher performance than class D requirements ► No calming sections required ► Insensitive against sedimentation ► Mounting in any installation position, battery lifetime up to 16 years ► Suitable for outdoor installation ► Displaying of error and alarm codes ► Data logger for consumption values

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ULTRASONIC METER Medium temperature range Temperature safety (medium) Ambient operating temperature Ambient storage temperature Nominal pressure Power supply Battery lifetime Data storage Protection class One or two 3.6 VDC lithium batteries (second battery not possible at M-Bus) Up to 12 years (one battery), up to 16 years (two batteries) Optical, radio 434 or 868 MHz, M-Bus, L-Bus, pulse For events and for consumption values TECHNICAL DATA DISPLAY Display indication Values displayed (depending Flow and volume (m3 + 3 digits after the comma) Flow (m3 + 3 digits after the comma); Volume (m3 +...

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ULTRASONIC METER TECHNICAL DATA Nominal flow rate Overload flow rate Q4 m3/h Transition flow rate Q2 |/h Minimum flow rate Q., |/h Starting flow rate l/h Nominal flow rate Overload flow rate Q4 m3/h Transition flow rate Q2 |/h Minimum flow rate Q., |/h Starting flow rate l/h PULSE INTERFACE - SPECIFICATION Pulse rates l/pulse Decadic 0.1 ...100 Display 3 digits after comma Pulse value 1 l/pulse 0.1 (factory setting) Pulse value 2 l/pulse 1 (factory setting) Pulse variants Two forward pulses; pulse and direction signal Note: In the field the pulse values can be configured as desired in the specified...

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HYDRUSDN 15 - 20 ULTRASONIC METER Nominal flow rate Nominal diameter Overall length Counter length Counter width Overall length with coupling Connection thread on meter Connection thread of coupling Weight without coupling (approx.) Weight with coupling (approx.) Overall length Counter length Counter width Overall length with coupling Connection thread on meter Connection thread of coupling Height Nominal flow rate Nominal diameter Weight without coupling (approx.) Weight with coupling (approx.)

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ULTRASONIC METER PRESSURE LOSS GRAPH / TYPICAL ERROR GRAPH Pressure loss graph Typical error graph HYDROMETER GmbH • Postfach 1462 • 91505 Ansbach Subject to technical adjustments

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ULTRASONIC METER TECHNICAL DATA Nominal flow rate Overload flow rate Q4 m3/h Transition flow rate Q2 |/h Minimum flow rate Q., |/h Starting flow rate l/h Nominal flow rate Overload flow rate Q4 m3/h Transition flow rate Q2 |/h Minimum flow rate Q., |/h Starting flow rate l/h PULSE INTERFACE - SPECIFICATION Pulse rates Pulse variants 2 digits after comma l/pulse 10 (factory setting) Direction (factory setting) Pulse and direction signal Note: In the field the pulse values can be configured as desired in the specified value range. HYDROMETER GmbH • Postfach 1462 • 91505 Ansbach Subject to technical...

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ULTRASONIC METER Nominal flow rate Nominal diameter Overall length Counter length Counter width Overall length with coupling Connection thread on meter Connection thread of coupling Weight without coupling Weight with coupling (approx.) DIMENSIONS - FLANGE Flange diameter Hole circle diameter Screwhole diameter Weight with flanges (approx.) HYDROMETER GmbH • Postfach 1462 • 91505 Ansbach Subject to technical adjustments

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HYDRUSDN 25 - 50 ULTRASONIC METER Nominal flow rate Nominal diameter Overall length Counter length Counter width Connection thread on meter Connection thread of coupling DIMENSIONS - THREAD Overall length with coupling Weight without coupling (approx.) Weight with coupling (approx.) DIMENSIONS - FLANGE Flange diameter Hole circle diameter Screwhole diameter Weight with flanges (approx.) PRESSURE LOSS GRAPH / TYPICAL ERROR GRAPH Pressure loss graph Typical error graph

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HYDRUS

HYDRUS

Catalog excerpts

All DIEHL Metering catalogs and technical brochures