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DIEHL Metering
CORONA DP 405

CORONA DP 405

Product catalog summary

Application
The CORONA DP 405 is a multi-jet meter designed for proportional control of pumps and motors, and for remote transmission of flow rates. It is suitable for both horizontal and rising pipe installations.

Features

Dry-running design with magnetic coupling to prevent sediment faults.
Waterproof, rotatable counter for easy reading.
Built-in pulse contact with a 2-meter cable, housed in a waterproof enclosure.
Maximum contact load of 24 V (SELV) 0.2 A.
Outlet prepared for a DVGW-approved non-return valve.
Special hard nickel-plated version available.

General Specifications

Medium temperature range: 0 to 30°C, with safety up to 90°C.
Ambient storage temperature: 0 to 55°C.
Nominal pressure: 16 bar.
Display range: 0.05 liters to 99,999 m³.
Pulse values available: 0.25 to 1000 liters per pulse.
Accuracy class: A, Protection class: IP 65.

Technical Data for Horizontal Pipes

Nominal diameters: 20, 25, 40, 50 mm.
Nominal flow rates: 2.5 to 15 m³/h.
Maximum flow rates: 5 to 30 m³/h.
Transition flow rates: 250 to 1500 l/h.
Minimum flow rates: 100 to 600 l/h.
Starting flow rates: 20-90 l/h.
Flow rate at 1 bar pressure loss: 7 to 34 m³/h.

Dimensions for Horizontal Pipes

Overall lengths: 175 to 300 mm.
Connection threads: G1B to G2B.
Weights without coupling: 1.7 to 11.7 kg.

Technical Data for Rising Pipes

Nominal diameters: 20, 25, 40 mm.
Nominal flow rates: 2.5 to 10 m³/h.
Maximum flow rates: 5 to 20 m³/h.
Transition flow rates: 250 to 1000 l/h.
Minimum flow rates: 100 to 400 l/h.
Starting flow rates: 20-70 l/h.
Flow rate at 1 bar pressure loss: 6 to 22 m³/h.

Dimensions for Rising Pipes

Overall lengths: 105 to 200 mm.
Connection threads: G1B to G2B.
Weights without coupling: 2.1 to 5.5 kg.

Graphs
The document includes pressure loss and typical error graphs for both horizontal and rising pipe installations.

Catalog excerpts

MULTI-JET METER | DRY RUNNER Contact water meter for proportional control of pumps, motors, etc. and for remote transmission of flow rates. ► Multi-jet impeller meter in completely dry-running design with magnetic ► Only the impeller operates in the wet chamber to prevent faults due to ► Encapsulated waterproof counter. Reading not obstructed by condensation ► Counter can be rotated to any position for easy reading ► Built-in pulse contact (with cable 2 m) cast in a waterproof enclosure and easily replaceable Max. contact load 24 V (SELV) 0.2 A ► The outlet is prepared for installing a non-return valve (DVGW approved) ► Special version hard nickel-plated available

Open the catalog to page 1

CORONA DP 405Meter for horizontal pipes MULTI-JET METER | DRY RUNNER GENERAL Medium temperature range Meter for horizontal pipes 0 ... 30 Temperature safety Ambient storage temperature Nominal pressure Display range Pulse value* Accuracy class Protection class * Reed switch with luster terminal available. TECHNICAL DATA Nominal diameter Nominal flow rate Maximum flow rate (short-term) Transition flow rate Minimum flow rate Overall length with coupling Starting flow rate Flow rate at 1 bar pressure loss Nominal diameter Nominal flow rate Connection thread on meter (ISO 228/1) Connection thread...

Open the catalog to page 2

CORONA DP 405 Meter for horizontal pipes MULTI-JET METER | DRY 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 DP 405Meter for rising pipes MULTI-JET METER | DRY RUNNER GENERAL Medium temperature range Meter for rising pipes 0 ... 30 Temperature safety Ambient storage temperature Nominal pressure Display range Pulse value* Accuracy class Protection class * Reed switch with luster terminal available. TECHNICAL DATA Nominal diameter Nominal flow rate Maximum flow rate (short-term) Transition flow rate Minimum flow rate Overall length with coupling Starting flow rate Flow rate at 1 bar pressure loss Nominal diameter Nominal flow rate Connection thread on meter (ISO 228/1) Connection thread of coupling...

Open the catalog to page 4

CORONA DP 405 Meter for rising pipes MULTI-JET METER | DRY 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 5

CORONA DP 405

CORONA DP 405

Catalog excerpts

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