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Summary of Contents for Seikom Electronic NLSW 45-3 Ex SIL2
- Page 1 Operating instructions NLSW®45-3 Ex SIL2 24 V AC, 24 V DC, 230 V AC...
- Page 2 Version 1.0...
- Page 4 Operating instructions NLSW®45-3 Ex SIL2 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 as well as interference radiation must be avoided. Protect devices effectively against damage. The sensor cable must be laid securely and effectively protected against damage.
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Page 5: Table Of Contents
Operating instructions NLSW®45-3 Ex SIL2 CONTENTS CONTENTS ............................3 1. SAFETY INSTRUCTIONS ......................4 1.1 General safety instructions ......................4 1.2 Intended use..........................5 2. GENERAL INFORMATION ON EXPLOSION PROTECTION .............5 2.1 Electrical circuit diagram for Ex-i ....................6 2.2 Intrinsically safe characteristics.....................7 2.3 Properties of the various sensor types ..................7 2.4 Type code ...........................7 2.5 Dimensions of the air flow sensors F3.x Ex SIL2 ................8 2.6 Temperature class ........................8... -
Page 6: Safety Instructions
Operating instructions NLSW®45-3 Ex SIL2 1. SAFETY INSTRUCTIONS 1.1 General safety instructions Please read the product description carefully before using the device. Make sure that the product is fully suitable for your application. Improper or improper use can lead to malfunctions of the device or to undesirable effects on your application. -
Page 7: Intended Use
Operating instructions NLSW®45-3 Ex SIL2 1.2 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. This also applies to the use of accessories. -
Page 8: Electrical Circuit Diagram For Ex-I
Operating instructions NLSW®45-3 Ex SIL2 2.1 Electrical circuit diagram for Ex-i When installing, please note that the supplied Zener barriers BZE804 and BZE805 have different values. If the barriers are interchanged, the NLSW45-3 Ex SIL2 airflow monitor will not function properly. +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com page 6... -
Page 9: Intrinsically Safe Characteristics
Operating instructions NLSW®45-3 Ex SIL2 2.2 Intrinsically safe characteristics Type Value 25 VDC 80 mA 0.35 W @ 40°C 0.24 W @ 110°C Negligible Negligible 2.3 Properties of the various sensor types Type F3.x Ex SIL2 Article no. 50276ExSIL2/[Eintauchtiefe] 50 mm (F3 Ex SIL2), 130 mm (F3.1 Ex SIL2), 165 mm (F3.2 Ex SIL2), Immersion depth 300 mm (F3.3 Ex SIL2), 400 mm (F3.4 Ex SIL2), 500 mm (F3.5 Ex SIL2) Media temperature... -
Page 10: Dimensions Of The Air Flow Sensors F3.X Ex Sil2
Operating instructions NLSW®45-3 Ex SIL2 2.5 Dimensions of the air flow sensors F3.x Ex SIL2 Sensor type Length A (in mm) Length B (in mm) F3 Ex SIL2 F3.1 Ex SIL2 F3.2 Ex SIL2 F3.3 Ex SIL2 F3.4 Ex SIL2 F3.5 Ex SIL2 2.6 Temperature class The sensor is suitable for temperature class T4. -
Page 11: Functionality
Operating instructions NLSW®45-3 Ex SIL2 General areas of application: Fan monitoring, extraction systems, supply air systems, mechanical and plant engineering. 3.2 Functionality Flow monitors of the NLSW45-3 Ex SIL2 series operate according to the calorimetric principle. The relay of a device switches when the flow velocity reaches a preselected threshold value. The calorimetric measuring principle is based on a heated, temperature-sensitive resistor. -
Page 12: Technical Data
Operating instructions NLSW®45-3 Ex SIL2 4. TECHNICAL DATA Type NLSW®45-3 Ex SIL2 NLSW®45-3 Ex SIL2 NLSW®45-3 Ex SIL2 24 V AC 24 V DC 230 V AC Item number 77029ACExSIL2_Gg 77029ACExSIL2_Gg 63377ExSIL2_Gg Operating voltage 24 V AC 24 V DC 230 V AC 50/60 Hz Voltage tolerance ±... -
Page 13: Device Dimensions
Operating instructions NLSW®45-3 Ex SIL2 4.1 Device dimensions 4.2 Labeling of the sensors (type plate) Each airflow sensor of the F3.x Ex SIL2 series is marked with a legible marking for the type of explosion protection required in the field as follows. This marking must not be removed. SEIKOM-Electronic GmbH &... -
Page 14: Installation And Commissioning
Operating instructions NLSW®45-3 Ex SIL2 5. INSTALLATION AND COMMISSIONING Installation and commissioning must be carried out by authorized and qualified personnel. 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. -
Page 15: Installation Conditions For Airflow Sensors F3.X Ex Sil2
Operating instructions NLSW®45-3 Ex SIL2 Stuck parts of the product (e.g. due to frost or corrosion) must not be forcibly loosened if an explosive atmosphere is present. The sensors must not be used in systems in which cathodic systems for corrosion protection are present. -
Page 16: Installation
Operating instructions NLSW®45-3 Ex SIL2 ▪ An extension of the sensor cable (shielded) is only permitted in a non-explosive atmosphere and may not exceed a total length of 30 m with a minimum cross-section of 1.5 mm². do not exceed The following points must be observed for the connecting cable during operation: ▪... -
Page 17: Commissioning The Device
Operating instructions NLSW®45-3 Ex SIL2 Color code: GY=grey | BK=black | BN=brown 5.4 Commissioning the device The two potentiometers (purple) fixed with protective lacquer are set at the factory and must not be adjusted. The following procedure is recommended for commissioning and setting the devices: Connect two suitable sensors (F3.x) to the device using the supplied terminals;... -
Page 18: Switching Point Adjustment
Operating instructions NLSW®45-3 Ex SIL2 Connect the PLC or control unit to relay output A and B (green) using the terminals supplied. Please note the NO/NC contact assignment and circuit. Set the "Sensitivity" potentiometer (dark blue) for both channels to the left stop (insensitive). -
Page 19: Servicing And Maintenance
Operating instructions NLSW®45-3 Ex SIL2 Large flow change: A 'yes/no' statement is usually required here (e.g. fan running or fan stopped). Therefore, such a large safety distance can be selected that neither temperature changes nor turbulence have an influence on the switching behavior. The switching points are set on the evaluation unit of the airflow monitor. -
Page 20: Troubleshooting
7. TROUBLESHOOTING The following instructions are intended as first aid if your airflow monitor is not working properly. If you have any further questions, the SEIKOM Electronic team will be happy to help you at any time by phone or e-mail. - Page 21 Operating instructions NLSW®45-3 Ex SIL2 Switching point with hot +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com page 19...
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Page 22: Disposal
Operating instructions NLSW®45-3 Ex SIL2 flowing medium set. 8. DISPOSAL The packaging and used parts must be disposed of in accordance with the regulations of the country in which the product is installed. +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com page 20... -
Page 23: Eu Declaration Of Conformity
Operating instructions NLSW®45-3 Ex SIL2 9. EU DECLARATION OF CONFORMITY +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com page 21... - Page 25 +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com Page 21...
- Page 26 +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com Page 22...
- Page 27 +49 2058 2044 - info@seikom-electronic.com - www.seikom-electronic.com Page 23...
- Page 28 Growing network of local distributors available online www.seikom-electronic.com Our product portfolio Flow Temperature Pressure Air quality and Zener barriers Universal Transmitter +49 2058 2044 info@seikom-electronic.com www.seikom-electronic.com SEIKOM-Electronic GmbH & Co KG Fortunastrasse 20 42489 Wülfrath...
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