*mydirectindustry

CORONA E

Product catalog summary

Application
The CORONA E is a fully electronic compact water meter designed for accurate volume recording at medium temperatures up to 90°C. It features impeller scanning for precise billing data collection.

Features

Electronic sensor control for flow rate recording.
Powered by a lithium battery with a lifespan of up to 12 years.
Standard optical ZVEI interface and adjustable reading date for billing.
Rotatable integrator and a single-line 7-digit display for easy reading.

Basic Features

Complies with OIML R49 class C / MID E2 + M1 ambient class.
Protection class IP 54 or IP 68 for cold and warm water meters.
Standard interfaces include Optical ZVEI, with optional M-Bus, L-Bus, and pulse interfaces.

Technical Data Display

LCD display with 7 digits showing flow rate in m³/h, l/h, m³, or l.
Total values range from 9,999.999 to 99,999.99.

Supply Voltage

Operates on a 3.0 VDC lithium battery with a nominal power of 30 μW.

Interfaces Overview

Optical ZVEI interface for communication, M-Bus protocol for data reading and parameterization.
L-Bus interface for radio module IZAR RADIO EXTERN and pulse output for volume.

Pulse Interface Specification

Decadic pulse rates from 0.1 to 100 l/pulse, configurable in the field.
Output type is open collector with a max frequency of 90 Hz.

General Specifications

Available in DN 15-20 and DN 25-40 models, suitable for cold (30°C) and warm (90°C) water.
Nominal pressure of 10/16 bar for DN 15-20 and 16 bar for DN 25-40.
Mounting position can be horizontal or vertical depending on the model.

Technical Data

Nominal diameters range from DN 15 to DN 40 with varying flow rates and dimensions.
Pressure loss and flow rate specifications are provided for different models.

Approval and Compliance

Complies with MID and national standards for both 30°C and 90°C applications.
Metrological class B/C depending on the model.

Dimensions

Detailed dimensions and weights are provided for each model, including connection threads and overall lengths.

Graphs

Pressure loss and typical error graphs are included for performance analysis.

Catalog excerpts

ELECTRONIC METER | MULTI-JET Fully electronic compact water meter with impeller scanning for recording volume. Highly accurate recording of all billing data at medium temperatures up ► Electronic sensor control for recording flow rate ► Lithium battery, lifetime up to 12 years ► Optical ZVEI interface equipped as standard ► Adjustable reading date for billing ► Single-line 7-digit display for easy meter reading

Open the catalog to page 1

ELECTRONIC METER | MULTI-JET ELECTRONIC - BASIC FEATURES IP 54 or IP 68 for cold and warm water meter Optical ZVEI M-Bus, L-Bus, pulse Ambient class Protection class Interfaces standard Interfaces optional* * Possible combinations - M-Bus / pulse - L-Bus / forward pulse - only M-Bus Note: IZAR@SET / HYDRO-SET Software for configuration of meters, readout of measured values and printout of meter logs. Available under www.diehl.com/metering (Products - downloads) TECHNICAL DATA DISPLAY Display indication Total values Values displayed Flow rate SUPPLY VOLTAGE Operating voltage UN VDC 3.0 (lithium...

Open the catalog to page 2

ELECTRONIC METER | MULTI-JET VOLUME- / PULSE Output type Max. voltage drop at active Max. current through inactive Max. reverse voltage without destroying outputs Open collector HYDROMETER GmbH • Postfach 1462 • 91505 Ansbach Subject to technical adjustments

Open the catalog to page 3

CORONA EDN 15 - 20 ELECTRONIC METER | MULTI-JET GENERAL Temperature range DN 15 - 20 30 (for cold water meter) / 90 (for warm water meter) Ambient operating temperature Ambient storage temperature Nominal pressure Mounting position TECHNICAL DATA Nominal diameter Nominal flow rate Nominal flow rate Overall length Overload flow rate Transition flow rate Minimum flow rate Maximum flow rate (short-term) Transition flow rate Minimum flow rate Starting flow rate Pressure loss at Q3 Flow rate at 0.1 bar pressure loss APPROVAL Nominal diameter Nominal flow rate Nominal flow rate Overall length MID (LNE...

Open the catalog to page 4

ELECTRONIC METER | MULTI-JET Nominal flow rate Nominal flow rate Overall length Overall length with coupling Connection thread on meter Connection thread of coupling Weight without coupling Weight with coupling PRESSURE LOSS GRAPH / TYPICAL ERROR GRAPH Pressure loss graph Typical error graph HYDROMETER GmbH • Postfach 1462 • 91505 Ansbach Subject to technical adjustments

Open the catalog to page 5

CORONA EDN 25 - 40 | HORIZONTAL ELECTRONIC METER | MULTI-JET GENERAL Temperature range DN 25 - 40 | HORIZONTAL 30 (for cold water meter) / 90 (for warm water meter) Ambient operating temperature Ambient storage temperature Nominal pressure Mounting position TECHNICAL DATA Nominal diameter Nominal flow rate Nominal flow rate Overall length Overload flow rate Transition flow rate Minimum flow rate Maximum flow rate (short-term) Transition flow rate Minimum flow rate Starting flow rate Pressure loss at Q3 Flow rate at 1 bar pressure loss (30 °C) APPROVAL Nominal diameter Nominal flow rate Nominal...

Open the catalog to page 6

CORONA EDN 25 - 40 | HORIZONTAL ELECTRONIC METER | MULTI-JET Nominal diameter Nominal flow rate Nominal flow rate Overall length Overall length with coupling Connection thread on meter Connection thread of coupling Flange diameter Hole circle diameter Number of screwholes Screwhole diameter Weight with coupling Weight with flanges Weight without coupling PRESSURE LOSS GRAPH / TYPICAL ERROR GRAPH Pressure loss graph Typical error graph

Open the catalog to page 7

CORONA EDN 25 - 40 | VERTICAL ELECTRONIC METER | MULTI-JET GENERAL Temperature range DN 25 - 40 | VERTICAL 30 (for cold water meter) / 90 (for warm water meter) Ambient operating temperature Ambient storage temperature Rising pipe, downpipe Nominal pressure Mounting position TECHNICAL DATA Nominal diameter Nominal flow rate Nominal flow rate Overall length Overload flow rate Transition flow rate Minimum flow rate Maximum flow rate (short-term) Transition flow rate Minimum flow rate Starting flow rate Pressure loss at Q3 Flow rate at 1 bar pressure loss (30 °C) APPROVAL Nominal diameter Nominal...

Open the catalog to page 8

Open the catalog to page 9

CORONA E

CORONA E

Catalog excerpts

All DIEHL Metering catalogs and technical brochures