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Flow meters and switches

Flow meters and switches
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Flow meters and switches

Product catalog summary
Introduction
This document outlines the technical specifications and operational guidelines for Elettrotec's flow meters and switches, specifically the adjustable visual and electric flow indicators and switches of type IF and IFE. These devices are used in industrial applications to monitor fluid or gas flow, providing visual indications or electric alarm signals.
Specifications and Components
The flow meters and switches feature a robust construction with materials such as anodized light alloy, nickel-plated brass, or 304 stainless steel. Key components include a shutter with a permanent magnet, a Pyrex glass tube with a graduated scale, and seals. The design ensures operation without mechanical friction, enhancing safety and reliability.
Operation
The devices operate by allowing fluid or gas to flow upwards, moving a shutter along a guide tube. The flow rate is indicated on a graduated scale, and a magnetic field activates an electric alarm contact, adjustable via a movable cursor.
Installation and Usage
Flow switches should be installed vertically, away from magnetic fields and ferromagnetic walls. The fluid must be impurity-free for optimal operation. Suitable applications include cooling circuits, heat pumps, and chemical industries.
Technical Information
Protective circuits are necessary for reed contacts to handle inductive or capacitive loads. For inductive loads, a semiconductor diode is used, while an RC link is applied for AC. For capacitive loads, a resistor limits current peaks.
Conversion Table and Springs
A conversion table for water and air flow rates is provided, along with recommended springs for fluids more viscous than water.
Warnings
Ensure the combination of switching voltage and current does not exceed rated power. Proper installation and maintenance are crucial for performance and safety.
Specifications and Procedures
  • Current Discharge Limitation: Use circuit R1 or R2 to limit current discharge from capacitors.
  • Contact Arc Suppression: For inductive loads, use a graph to determine suppression values.
  • Protective Circuits: Outlined for different load types, including capacitive loads and lamps.
General Specifications
  • Visual Flow Indicators: Operating temperature from -10°C to +100°C, max flow rate of 60 LPM for water.
  • Ordering Information: Specify fluid type, temperature, and pressure when ordering.
Product Information
  • Adjustable Visual and Electric Flow Switches: Switching voltage of 60 W in DC and 60 VA in AC, max operating voltage of 220 V-50 Hz.
  • Compliance: Products comply with CE 89/336 standards.
Ordering Information
Details on ordering adjustable electric flow switches, specifying model type, electrical contacts, and body material. Models range from IF1 to IF6 with options for NO or SPDT contacts.
Technical Data
Switches have a switching power of 60 W in DC and 60 VA in AC, with a max operating voltage of 220 V-50 Hz. They feature IP65 protection and an operating temperature range from -10°C to +100°C.
Installation Guidelines
Flow switches should be mounted vertically with a max inclination of 15°, installed at least 50 mm away from iron parts or magnetic fields.
General Specifications
Includes a table detailing operating range, dimensions, max pressure, and weight for each model.
Important Notes
Elettrotec reserves the right to modify technical data or discontinue products without notice. Users must verify product suitability for specific applications.
Overview
Technical specifications and ordering information for Elettrotec's flow meters, including FMX and EPF series, designed for measuring and controlling liquid and gas flow.
FMX Series - Oxygen Flow Meters
Designed for non-pulsating oxygen flow, featuring a regulating valve, acrylic body, and stainless steel fittings.
EPF Series - Variable Area Flow Meters
Suitable for any angle installation, ideal for continuous flow monitoring of liquids or gases.
Ordering Information
Details on ordering codes for FMX and EPF series, specifying model, gasket, version, and fitting material.
Important Notes
Users must verify product suitability, including material compatibility. Technical data may not apply to all situations.
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Catalog excerpts

Flow meters and switches-1

Flussimetri e flussostati Flow meters and switches PORTATA / FLOW CONTROL DEVICES FOR FLUIDS

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Flow meters and switches-2

FLUSSIMETRI E FLUSSOSTATI VISIVI ED ELETTRICI REGOLABILI TIPO  IF ADJUSTABLE ELECTRIC FLOW INDICATORS AND SWITCHES WITH OR WITHOUT VISUAL INDICATION TYPE IF Flussimetri e flussostati vengono normalmente impiegati per controllare il passaggio di un fluido o di un gas in un circuito e avere una semplice indicazione di portata oppure, nelle versioni dotate di contatto, trasmettere un segnale elettrico di allarme a distanza, su un quadro di controllo, qualora si registri una variazione della intensità del flusso. Sono particolarmente indicati per l’utilizzo negli impianti di carico e scarico acqua,...

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Flow meters and switches-3

FLUSSOSTATI ELETTRICI REGOLABILI TIPO IFE ADJUSTABLE ELECTRIC FLOW SWITCHES IFE I flussostati IFE vengono normalmente impiegati per controllare il passaggio di un fluido in un circuito e trasmettere un segnale elettrico ON-OFF di allarme a distanza su un quadro di controllo, qualora si registri una variazione dell’intensità del flusso. Sono particolarmente indicati per l’utilizzo negli impianti di carico e scarico acqua e olio, nonché nei circuiti di raffreddamento, pompe di calore, riscaldatori, saldatrici, trasformatori, scambiatori di calore, compressori, impianti chimici, farmaceutici, alimentari,...

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Monogramma per determinare la soppressione dell’arco di contatto per carichi induttivi. Circuiti protettivi per contatti Reed Protective circuits for Reed contacts Graph for determining the contact arc suppression for inductive loads. Carichi induttivi Inductive loads Esempio 2: Quando la scarica di corrente è critica, la resistenza dovrebbe essere determinata con il monogramma più basso, ad esempio: scarica di corrente 0,5 A Rmin = 400 Ω Example 2: When the inrush current is critical, the resistance should be determined with the lower graph, for example inrush current 0.5 A Rrm=400 Ω Protezione...

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FLUSSIMETRI VISIVI Visual flow indicators Temperatura di lavoro (standard) Con guarnizioni in FKM Fissaggio in linea in posizione Inclinazione max. Entrata del fluido Portata max. controllabile -10°C... +100°C +130°C (su richiesta) VERTICALE 15° BASSO  ALTO 60 l/min - H2O Operating temperature (standard) -10°C... +100°C With FKM gasket +130°C (on demand) Fastening VERTICAL Max inclination 15° Fluid inlet DOWN  TOP Max flow rate 60 LPM - H20 Applicare il flussostato distante almeno 50 mm da pareti o corpi ferrosi e lontano da campi magnetici. A Flow indicators and switches must be mounted at...

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Flow meters and switches-6

FLUSSOSTATI VISIVI ED ELETTRICI REGOLABILI Adjustable Visual and Electric flow switches Switching voltage in DC 60 W Switching voltage in AC 60 VA Max operating voltage 220 V-50 Hz Voltage intensity in DC/AC 0,8 (resistive) Breakdown voltage 300 V Open contact resistance 4 pF Insulation resistance 1010 Ohm Contact (dry condition) NO (Normally Open) C/O contacts (“SC” model) SPDT (on request) Connector PG09 Electrical protection IP65 Operating temperature (standard) -10°C... +100°C With FKM gasket +130°C (on demand) Fastening VERTICAL Max inclination 15° Fluid inlet DOWN  TOP Max flow rate 60...

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IF... V2E... FLUSSOSTATI VISIVI ED ELETTRICI REGOLABILI Adjustable Visual and Electric flow switches Switching voltage in DC 60 W Switching voltage in AC 60 VA Max operating voltage 220 V-50 Hz Voltage intensity in DC/AC 0,8 (resistive) Breakdown voltage 300 V Open contact resistance 4 pF Insulation resistance 1010 Ohm Contact (dry condition) NO (Normally Open) C/O contacts (“SC” model) SPDT (on request) Connector PG09 Electrical protection IP65 Operating temperature (standard) -10°C... +100°C With FKM gasket +130°C (on demand) Fastening VERTICAL Max inclination 15° Fluid inlet DOWN  TOP Max...

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Flow meters and switches-8

FLUSSOSTATI ELETTRICI REGOLABILI Adjustable electric flow switches Potenza commutabile in CC 60 W Potenza commutabile in CA 60 VA Tensione max. di lavoro 220 V-50 Hz Intensità di corrente in CC/CA 0,8 (resistivi) Tensione di breakdown 300 V Capacità dei contatti aperti 4 pF Resistenza di isolamento 1010 Ohm Contatto a riposo (senza fluido) NA (normalmente aperto) Contatti in scambio “SC” SPDT (su richiesta) Connettore PG09 Protezione elettrica IP65 Temperatura di lavoro (standard) -10°C... +100°C Con guarnizioni in FKM +130°C (a richiesta) Fissaggio in linea in posizione VERTICALE Inclinazione...

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Flow meters and switches-9

IF... DE... FLUSSOSTATI ELETTRICI REGOLABILI Adjustable electric flow switches Potenza commutabile in CC 60 W Potenza commutabile in CA 60 VA Tensione max. di lavoro 220 V-50 Hz Intensità di corrente in CC/CA 0,8 (resistivi) Tensione di breakdown 300 V Capacità dei contatti aperti 4 pF Resistenza di isolamento 1010 Ohm Contatto a riposo (senza fluido) NA (normalmente aperto) Contatti in scambio “SC” SPDT (su richiesta) Connettore PG09 Protezione elettrica IP65 Temperatura di lavoro (standard) -10°C... +100°C con guarnizioni in FKM +130°C (su richiesta) Fissaggio in linea in posizione VERTICALE...

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Flow meters and switches-10

FLUSSOSTATI ELETTRICI REGOLABILI Adjustable electric flow switches Switching voltage in DC 20 W Switching voltage in AC 20 VA Max operating voltage 220 V-50 Hz Current intensity in DC/AC 0,5 (resistive) Breakdown voltage 300 V Insulation resistance 1010 Ohm Contact (dry condition) NO (Normally Open) Electrical connection 2P+G PG09 Electrical protection IP65 Operating temperature (standard) -10°C... +80°C Fastening VERTICAL Max inclination 15° Fluid inlet DOWN  TOP Max flow rate 60 LPM - H20 Max flow resistance with H2O 0,5 bar Max pressure 50 bar Differential ~45% of set value Applicare il flussostato...

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Flow meters and switches-11

FLUSSOSTATI ELETTRICI REGOLABILI Adjustable electric flow switches Potenza commutabile in CC 20 W Potenza commutabile in CA 20 VA Tensione max. di lavoro 220 V-50 Hz Intensità di corrente in CC/CA 0,5 (resistivi) Tensione di breakdown 300 V Resistenza di isolamento 1010 Ohm Contatto a riposo (senza fluido) NA (normalmente aperto) Connessione elettrica 2P+T PG09 Protezione elettrica IP65 Temperatura di lavoro (standard) -10°C... +80°C Fissaggio in linea VERTICALE Inclinazione max. 15° Entrata del fluido BASSO  ALTO Portata max. controllabile 60 l/min - H2O Perdita di carico max. con H2O 0,5 bar...

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*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.