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REED SWITCH 570

REED SWITCH 570

REED SWITCH 570

Product catalog summary
Application
The Reed Switch 570 is designed for generating high pulse frequencies for electronic processing, such as signal converters, remote transmission of flow rates, pipe leakage monitoring, pump control, and dosing and measuring heat amounts.

Features
  • Sensor replacement does not affect water meter calibration.
  • Simultaneous tapping of two different pulse values.
  • Optional integrated contact protection.
  • Special version available for Ex range with EEC design inspection certificate.

Function
The sensor works with a magnet in the water meter counter to provide a pulse frequency proportional to flow. A reed switch acts as the sensor, with an impeller magnet creating one pulse per revolution.

Technical Data
  • Contact rating: 24 V ~, 0.2 A (without protective resistor).
  • Cable type: 2 x 0.25 mm², length 2 m (max 10 m without EMC test).
  • Operating temperature: -25 to +90 °C.
  • Storage temperature: -40 to +90 °C.
  • Protection class: IP 68.
  • Optional protective resistor: 100 Ω, ¼ W.

Usability
Compatible with various bulk water meters and multi-jet meters, with different pulse values depending on the meter type and size.

Dimensions
  • Length: 11 mm
  • Height: 25 mm
  • Width: 9.5 mm

Notes
  • Installation must be with the cable downwards.
  • Reed switches do not require CE marking.
  • Overvoltage protectors recommended for long cables.

Order References
Different types available for various meter models, with options for cable length and connection type.

Installation of Transmitter for MFD Counter
  1. Remove protective cover by pressing the catch.
  2. Press transmitter into position on the counter.
  3. Secure the transmitter cable for strain relief.
  4. Bring the cable out through the U-shaped cut-out.
  5. Snap the protective cover back into place.
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Catalog excerpts

REED SWITCH 570-1

REED SWITCH 570 DIEHL ELECTRONIC ACCESSORY I TRANSMITTER Generation of a high pulse frequency for electronic processing (e.g. signal converters) as well as remote transmission of analogue flow rate valute to display instruments or recorders, pipe leakage monitoring, control of pumps and values, dosing and measuring heat amounts. ► Sensor easily replaced without affecting the water meter calibration ► Two pulses of different values can be tapped off simultaneously ► Integrated contact protection available on special request ► Special version for Ex range (EEC design inspection certificate)

 Open the catalog to page 1
REED SWITCH 570-2

ELECTRONIC ACCESSORY | TRANSMITTER The sensor acts together with the magnet fitted as standard in the counter of the water meter to provide a pulse frequency proportional to the flow. A reed switch is used as sensor and the initiator is an impeller fitted with a magnet, which creates one switching pulse per TECHNICAL DATA Contact rating Cable type Cable length Cable length (without EMC test) Operating temperature Storage temperature Protection class Reed switch (make) cast in plug 24 V ~, 0.2 A* (without protective resistor) * The pulse transmitter is also available with a protective resistor...

 Open the catalog to page 2
REED SWITCH 570-3

ELECTRONIC ACCESSORY | TRANSMITTER ORDER REFERENCES Counter version Article number INSTALLATION OF TRANSMITTER FOR MFO COUNTER • Remove protective cover by pressing in the catch (1.). • Press transmitter (2.) into the desired position on the counter (the pulse sequences can be read off the dial). This is done by pressing the transmitter against the spring and engaging it in position by pressing against the counter. • Press the transmitter cable between the cams on the cover ring and the counter wall for strain relief purposes. • Then bring out the cable through the U-shaped cut-out (3.). • Snap...

 Open the catalog to page 3
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.