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DIEHL Metering
CORONA P 423/424

CORONA P 423/424

Product catalog summary

Application
The CORONA P 423/424 is a multi-jet impeller meter designed for control, metering, or remote display of flow rate. It features a pulse output contact and is suitable for both forward and return metering.

Features

Low head loss and extended measuring range.
Records small water consumption amounts.
Handles high loads for short periods.
Ensures long-term accuracy.
Includes a strainer insert for easy cleaning.
Pulse contact is easily replaceable and available with screw connection or cable.
Maximum contact load is 24 V (SELV) 0.2 A.

General Specifications

Applicable for horizontal pipes (423) and rising pipes (424).
Medium temperature range: 0 to 30°C.
Temperature safety up to 50°C.
Ambient operating and storage temperature: 0 to 55°C.
Nominal pressure: 10 bar.
Display range: 0.05 l to 99,999 m³.
Protection class: IP 65 (IP 68 with pulse contact and cable).

Technical Data

Nominal diameters: 20, 25, 40, 50 mm.
Nominal flow rates: 2.5, 6, 10, 15 m³/h.
Maximum flow rates (short-term): 5, 12, 20, 30 m³/h.
Transition flow rates: 250, 500, 1000, 1500 l/h.
Minimum flow rates: 30, 70, 100 l/h.
Starting flow rates: 4-6, 6-8, 20-25, 25-30 l/h.
Flow rate at 1 bar pressure loss: 7, 12, 24, 34 m³/h.

Approval

EC approvals for various nominal diameters.
Metrological classes: A/B/C.

Dimensions

Overall lengths and connection threads vary by nominal diameter.
Weight specifications provided with and without coupling.

Graphs

Includes pressure loss and typical error graphs for both horizontal and rising pipe meters.

Catalog excerpts

MULTI-JET METER | WET RUNNER Multi-jet impeller meter with pulse output contact for control, metering or remote display of flow rate Especially low head loss and extended measuring range ► Records very small amounts of water consumption ► Withstands high load for short time periods ► Maximum long-term accuracy ► Forward and return metering ► Strainer insert in inlet connection for cleaning without damaging the seal ► Measuring data better than specified by calibration regulations Easiliy replaceable pulse contact ► Pulse contact with screw connection (standard version) or cable 2 m ► Max. contact load 24 V (SELV) 0.2 A

Open the catalog to page 1

CORONA P 423/424 Meter for horizontal pipes 423 MULTI-JET METER | WET RUNNER Medium temperature range Temperature safety Ambient operating temperature Ambient storage temperature Nominal pressure Display range Pulse value Protection class Meter for horizontal pipes 423 IP 65 (IP 68 with pulse contact and cable) TECHNICAL DATA Nominal flow rate Qn m3/h Maximum flow rate (short-term) Qmax m3/h Transition flow rate Q, |/h Minimum flow rate Qmin |/h Starting flow rate |/h Flow rate at 1 bar pressure loss m3/h Nominal diameter Metrological class Overall length with coupling L2 mm Connection thread...

Open the catalog to page 2

CORONA P 423/424 Meter for horizontal pipes 423 MULTI-JET METER | WET RUNNER 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 3

CORONA P 423/424 Meter for rising pipes 424 MULTI-JET METER | WET RUNNER Medium temperature range Temperature safety Ambient operating temperature Ambient storage temperature Nominal pressure Display range Pulse value Protection class Meter for rising pipes 424 IP 65 (IP 68 with pulse contact and cable) TECHNICAL DATA Nominal flow rate Qn m3/h Maximum flow rate (short-term) Qmax m3/h Transition flow rate Q, |/h Minimum flow rate Qmin |/h Starting flow rate |/h Flow rate at 1 bar pressure loss m3/h Nominal diameter Metrological class HYDROMETER GmbH • Postfach 1462 • 91505 Ansbach Subject to technical...

Open the catalog to page 4

CORONA P 423/424 Meter for rising pipes 424 MULTI-JET METER | WET RUNNER 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 P 423/424

CORONA P 423/424

Catalog excerpts

All DIEHL Metering catalogs and technical brochures