Summary of Contents for Seikom Electronic F3 Ex Series
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Operating instructions NLSW®45-3 Ex (Gg) & Sensor F3.x Ex 24 V AC, 24 V DC, 230 V AC Version 1.0...
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Operating instructions NLSW®45-3 Ex (Gg) & F3.x Ex The installation company and the system operator are responsible for observing and complying with the relevant national Ex regulations. Static charges on plastic and cable parts must be avoided. Protect devices effectively against damage. The sensor cable must be laid securely and effectively protected against damage.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex CONTENTS CONTENTS ........................... 3 1. PREAMBLE ..........................4 1.1 Safety instructions ..........................4 2. GENERAL INFORMATION ON EXPLOSION PROTECTION ............4 2.1 Electrical parameters for Ex-i ........................5 2.2 Intrinsically safe characteristics ......................5 2.3 Properties of the various sensor types.....................
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex 1. PREAMBLE 1.1 Safety instructions To ensure proper function and for your own safety, please read the enclosed operating instructions carefully before starting the installation. If you h a v e any questions, please contact the SEIKOM- Electronic team.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex 2.1 Electrical parameters for Ex-i When installing, please note that the Zener barriers BZE804 and BZE805 have different values. If the barriers are interchanged, the NLSW®45-3 Ex air flow monitor will not function correctly. 2.2 Intrinsically safe characteristics Type Value...
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex 2.3 Properties of the various sensor types Type F3 Ex F3.1 Ex F3.2 Ex F3.3 Ex Article no. 50276Ex/50 50276Ex/130 50276Ex/165 50276Ex/300 Immersion depth 50 mm 130 mm 165 mm 300 mm Permissible media 0 °C ...
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex 2.5 Dimensions of the air flow sensors F3.x Ex 2.5.1 F3 Ex 2.5.2 F3.1 Ex 2.5.3 F3.2 Ex 2.6 Temperature class The sensor is suitable for temperature class T4. +49 2058 916 900 0 - info@seikom-electronic.com - www.seikom-electronic.com page...
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex 2.7 General requirements 2.7.1 Intended use To ensure safe operation, the products may only be used in accordance with the information in the operating instructions. During use, the legal and safety regulations required for the respective application must also be observed.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex 3. COMMISSIONING AND INSTALLATION Depending on the IP protection rating, the time for cleaning the operating equipment (dust deposits) must be specified. Other important facts: The product may only be put into operation in Zone 2 (Cat. 3G, EPL Gc) or Zone 1 (Cat. 2G, EPL Gb in intrinsically safe circuits by specialists with a qualification similar to a competent person in accordance with TRBS 1203.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex The sensors must not be used in systems in which cathodic systems for corrosion protection are present. Although special precautions may make this possible, the manufacturer must always be consulted. Parasitic currents must not be conducted via the construction. Within the potentially explosive area, installation may only be carried out in accordance with the locally applicable installation regulations.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex 3.2 Installation Mounting is carried out via the PG7 located on the sensor housing. Installation is also possible using the enclosed PG7 nuts. The marking serves as an alignment aid to align the cross hole with the sensors in the air flow.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex Only accessories that meet all the requirements of European directives and national legislation may be used in potentially explosive atmospheres. Maintenance work involving disassembly of the sensors may only be carried out in an explosion-free atmosphere.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex 6. DISPOSAL The packaging and used parts must be disposed of in accordance with the regulations of the country in which the product is installed. 7. LABELING OF THE SENSOR (TYPE PLATE) Each airflow sensor of the F3.xEx series is marked with a legible label for the type of explosion protection required in the field as follows.
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex 8. TECHNICAL DATA OF AIR FLOW SWITCHES NLSW®45-3 Ex Type NLSW®45-3 Ex Item number 77029Ex/DC 77029Ex/AC 63377Ex Operating voltage 24 V DC 24 V AC 230 V AC Voltage tolerance ±...
Operating instructions NLSW®45-3 Ex (Gg) & sensor F3.x Ex 9. INSTALLATION OF FLOW SWITCHES NLSW®45-3 Ex The flow monitors of the NLSW®45-3Ex series must be installed together with the safety barriers outside the potentially explosive area. Make sure that the housing has a protection rating of IP40. Connection and commissioning must be carried out by qualified personnel.
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Operating instructions NLSW®45-3 Ex (Gg) & sensor F3. X Ex Large flow change: A yes/no statement is usually required here (e.g. fan running or stopped). Therefore, such a large safety distance can be selected that neither temperature changes nor turbulence have an influence on the switching behavior.
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