Rotork Controls P3W-001 Pakscan 3 Wireless Field Control Unit User Manual Antenna Information

Rotork Controls Ltd Pakscan 3 Wireless Field Control Unit Antenna Information

Contents

Antenna Information

rotork engineering report Number: ER436 Page of 1 of 4 Revision: 1 Date: 14/10/2010 Title: Pakscan 3 Wireless: Aerial Specification Circulation Copy: Revision 1 Prepared Checked Approved MWH Paul Davis Tom Hannon 14/10/10 14/10/10 14/10/10 Synopsis Only: Revision Notes: Synopsis: This specification defines the requirements for a 2.4GHz aerial for use with the Pakscan 3 Wireless system. The aerial will be suitable for both WT and EP applications.
rotork engineering report Number: ER436 Page of 2 of 4 Revision: 1 Date: 14/10/2010 Contents 1. INTRODUCTION................................................................................................. 3 2. FUNCTIONAL REQUIREMENTS ....................................................................... 4 3. ENVIRONMENTAL ............................................................................................. 4 3.1 TEMPERATURE ............................................................................................... 4 3.2 VIBRATION ..................................................................................................... 4 3.3 SHOCK .......................................................................................................... 4 3.4 SEISMIC ......................................................................................................... 4
rotork engineering report Number: ER436 Page of 3 of 4 Revision: 1 Date: 14/10/2010 1. Introduction There is a requirement for a 2.4GHz band aerial, for use with industrial wireless networking, with approval for use in potentially explosive atmospheres. (ATEX, FM, CSA hazardous area certification) The aerial will mount in a standard conduit entry with an M25 thread.
rotork engineering report Number: ER436 Page of 4 of 4 Revision: 1 Date: 14/10/2010 2. Functional Requirements 1) The aerial shall be designed to operate over the 2.4GHz ISM band. (i.e. from 2.400 GHz to 2.4835 GHz) 2) The aerial shall mount in a PTFE cover tube manufactured to Rotork drawing 49725 3) The aerial shall have 200mm of RG174 cable connected. 4) The RG174 cable will be terminated with an SMA male plug (normal polarity). 5) The horizontal radiation pattern shall be omni-directional +/- 1dB. (It is intended that the aerial be mounted with the conducting elements vertical, giving a vertically polarised electric field component.) 6) The nominal gain should be 0dBd. 7) The nominal feed impedance shall be 50 ohms. 8) The SWR is to be less than 1.5:1 over the frequency range 2.400 GHz to 2.4835 GHz. 3. Environmental 3.1 Temperature -40°C to +70°C Actuator Ambient. Assume 10°C temperature rise internally 3.2 Vibration Plant Induced -The equipment is to be suitable for use in environments where the cumulative level of all vibration within the frequency range 10 - 1,000 Hz. is less than 1g rms. 3.3 Shock Functional after 5 positive and 5 negative impacts, of half sine wave pulses, applied in each perpendicular axis. Pulse to be 5g for 11ms duration with a10% pre & post pulse. Tests to be carried to BS EN 60068-2-27. 3.4 Seismic 2g acceleration over a frequency range of 1 to 50Hz if operating during and after event, 5g if it is required to maintain structural integrity.

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