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Air Flow Monitoring
Operating Instructions for the Air Flow
Sensors and Monitors of Series F3.xEx and
NLSW75-AEx (St)
The person installing the devices as well as the system operator are obligated to ensure the satisfaction of the
mandatory national ex-legislation. Electrostatic charges on plastic parts and wires must be avoided. The
devices must be protected from any damage. The wire connecting the flow sensor must be attached to
stationary surfaces and must be protected from any harm. Stray radiation must be avoided.
Our products satisfy the requirements specified in the European directives WEEE 2012/19/EU and
RoHS 2011/65/EU.
SEIKOM-Electronic GmbH & Co. KG – Fortunastr. 20 – 42489 Wülfrath – Germany
Phone: +49(0)20 58 / 20 44 –
– Email: info@seikom-electronic.com
www.seikom-electronic.de
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Related Manuals for Seikom Electronic F3.xEx Series
Summary of Contents for Seikom Electronic F3.xEx Series
- Page 1 Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx (St) The person installing the devices as well as the system operator are obligated to ensure the satisfaction of the mandatory national ex-legislation. Electrostatic charges on plastic parts and wires must be avoided. The devices must be protected from any damage.
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Page 2: Table Of Contents
Table of Contents Preamble ..............................1 Safety Instructions ..........................1 General Information on Explosion Protection ..................1 Electrical Specifications for Ex-i ....................... 2 Intrinsically Safe Parameters ......................2 Sensor Properties for Series F3.xEx ....................3 Type Code ............................3 Dimensions of the Air Flow Sensors F3.xEx ..................3 2.5.1 F3Ex ............................ -
Page 3: Preamble
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx 1. Preamble Safety Instructions Please read the entire operating instructions to ensure the full operational capability of the devices and your own safety before starting their installation. If questions arise you may contact the manufacturer SEIKOM- Electronic GmbH &... -
Page 4: Electrical Specifications For Ex-I
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx Electrical Specifications for Ex-i Intrinsically Safe Parameters Type Value 25 VDC 80 mA 0,35 W @ 40 °C 0,24 W @ 110 °C negligible negligible SEIKOM-Electronic GmbH &... -
Page 5: Sensor Properties For Series F3.Xex
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx Sensor Properties for Series F3.xEx Type F3Ex F3.1Ex F3.2Ex F3.3Ex Article-No 50276/ex 50276/130/Ex 50276/150/Ex 50276/300/Ex Approx. immersion depth 50 mm 130 mm 165 mm 300 mm Permissible 0 °C ... -
Page 6: F3.2Ex
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx 2.5.3 F3.2Ex 2.5.4 F3.3Ex The drawing will be available in the near future. Temperature Class The sensors are suitable for use with temperature class T4. General Requirements 2.7.1 Intended Use a) Safe use can only be ensured if the devices are used according to the specifications of the operating... -
Page 7: Installation And Start-Up
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx i) The person performing the installation of the air flow sensors and their connection to the flow monitors is responsible for their correct function and must ensure that they are eligible for their intended use. -
Page 8: Installation Conditions Of The Air Flow Sensors F3.Xex
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx The following conditions must be met: a) Installation and maintenance may only be executed in atmospheres without any explosion hazard and in compliance with the applicable national regulations depending on the location of operation. b) Additional precautions must be made if hydrogen sulphide, ethylene oxide or carbon monoxide may be or are present. -
Page 9: Maintenance And Service
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx 4. Maintenance and Service Definitions Definitions according to IEC 60079-17: Maintenance and Repair: A combination of activities, carried out to maintain an object in a certain condition or to regain this condition, which satisfies the requirements of the relevant specifications and ensures the ability to perform the demanded functions. -
Page 10: Disposal
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx Problem Cause Solution Check supply voltage NLSW75-AEx does not work No or wrong supply voltage and connection Check installation NLSW75-AEx cannot Sensor not installed correctly or the measured conditions and identify flow range does not correspond to the technical data... -
Page 11: Technical Data Of The Air Flow Monitors Nlsw75-Aex
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx 9. Technical Data of the Air Flow Monitors NLSW75-AEx Type NLSW75-AEx NLSW75-AEx NLSW75-AEx Article-No 70789/DC/Ex 60620/Ex 70789/AC/Ex Operating voltage 24 V DC 230 VAC 24 V AC Voltage tolerance ±... -
Page 12: Start-Up And Switch-Point Adjustment
Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx Furthermore, the following points must be considered: a) For the installation of an intrinsically safe electrical circuit a block diagram (system description) is required, which must be supplied by the builder or operator b) The installation can only be conducted in a cleared status c) The start-up can only be performed after the mounting and electrical connection have been finished... - Page 13 Air Flow Monitoring Operating Instructions for the Air Flow Sensors and Monitors of Series F3.xEx and NLSW75-AEx Please do not hesitate to contact us in case of questions or problems. Technical development and errors reserved Revision status: 04/2021 SEIKOM-Electronic GmbH & Co. KG – Fortunastr. 20 – 42489 Wülfrath – Germany Phone: +49(0)20 58 / 20 44 –...
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