Section 1: System Specification ....................1 SmartPurge Control Unit Data ....................1 Electrical Ratings ........................2 Section 2: Quick User Guide .....................3 Installation ..........................3 Operation of the System ......................3 Purge Parameter Setup ......................4 Section 3: Application Suitability .....................5 Section 4: Description and Principle of Operation ..............5 Section 5: Main Components ....................6 SmartPurge Controller ......................6 Air Supply Unit .........................6...
• All piping must be clean and free of dirt, condensation and debris prior to connection to the purge system or pressurized enclosure. Note: It is essential for safety that the installer and user of the Expo system follow these instructions. Operation of the System Once installed correctly follow the directions below to make the system operational.
Where a risk of asphyxiation exists, a warning label must be fitted to the pressurized enclosure. The following materials are used in the construction of SmartPurge systems. If substances that will adversely affect any of these materials are present in the surrounding environment, please consult Expo Technologies ltd for further guidance. Materials of Construction...
Suitable for low flow rate applications, applications where a continuous flow of air is required for cooling or when the dilution of hazardous gases generated inside the enclosure is required. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
The other display will show “0000” during password entry. Cable Gland Kit – SP2-GK An Expo recommended set of cable glands for field wiring. M16 Gland for cable of outer diameter 4 – 8.4 mm and M20 Gland for cable of outer diameter 7.2 – 11.7 mm Remote LED –...
SmartPurge control unit is first mounted onto a chassis plate which is mounted via Anti-Vibration (AV) mounts. General Safety Warnings The Expo SmartPurge purge and pressurization system must only be used in accordance with the instructions in this manual and for the purpose described earlier.
The purge air from the SmartPurge Control Unit should be piped within the pressurized enclosure to ensure purging of potential dead air spots. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
The status / alarm outputs must not be used to control the switching of power to the protected equipment. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
Before mounting the SmartPurge, it should be configured for the flow range required. To carry out this configuration, choose the appropriate flow rate from Table 1 ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
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For internal mounting of the SmartPurge, use an EXPO adaptor plate accessory. Pipe work to and from the air supply unit must be sized to provide adequate airflow with the minimum pressure drop (restrictive pipe fittings should be avoided). The air outlet from the Air Supply Unit should be located or piped to the opposite side of the enclosure to ensure effective purging, unless effective purging can be proved by other means.
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If required, it may be possible to use a custom inlet or outlet flow restrictor in order to achieve satisfactory purge operation. Only standard 8 & 16 hole outlet orifices should be used. SmartPurge allows for custom orifice settings. Consult EXPO for further information.. ML484 | v13...
Initial Commissioning Note: The system is pre-set and no adjustments (other than those detailed in this document) should be made without consultation with Expo. • Ensure the SmartPurge has been correctly installed. • Ensure that all electrical power to the enclosure being protected is isolated.
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• Check function of alarm contacts when pressure drop below 0.5 mbar occurs. • If correct operation is not observed refer to the fault finding section of this handbook. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
Some menus will request confirmation by displaying Confirm? Y / N. Press for Yes and for No. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011 T: +1 (440) 247 5314 T: +86 532 8906 9858 E: sales@expoworldwide.com...
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• The Maintenance Password is fixed by Expo, and is not available to general users, as this password controls access to the pressure sensor and flow rate calibration system.
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There is no control by the system over the flow of purge air. After the purge has completed, the system checks for flow above the minimum dilution rate. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
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Choosing purge start will inhibit the start of a purge cycle if an external alarm input is present. The default condition is “Purge Start” ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011 T: +1 (440) 247 5314 T: +86 532 8906 9858 E: sales@expoworldwide.com...
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Number of Volume. Changes. Where the purge air volume has been measured by testing, enter the desired volume here. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011 T: +1 (440) 247 5314 T: +86 532 8906 9858 E: sales@expoworldwide.com...
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• The minimum flow rate is automatically calculated as 40% of the maximum flow rate available for the selected orifice. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011 T: +1 (440) 247 5314 T: +86 532 8906 9858 E: sales@expoworldwide.com...
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• The purge time has a minimum value of 1 minute. The user can amend the purge time to a larger value than the one calculated by the system. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
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• Purge acknowledge only applies when the parameter Purge Start is set to manual. This message prompts the user to initiate the purge cycle by pressing the enter button. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
It is suggested that the best way to ensure this is to perform this operation with the enclosure door open and the air supply turned off Carry out re-zeroing as follows: ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011 T: +1 (440) 247 5314 T: +86 532 8906 9858 E: sales@expoworldwide.com...
Press 4 times to return to main menu Repairs If the SmartPurge needs repairs, these should be carried out by an Expo Service Person. ML484 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
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System SP2’ Designed and manufactured by Expo Technologies Ltd Summer Road, Thames Ditton, Surrey, KT7 0RH, UK The above system has been assessed and is considered capable for use in a SIL2 high demand safety function. The assessment was based on the assumptions and data provided ESC Ltd Report No.
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Expo Technologies USA Expo Technologies UK Expo Technologies China Expo Technologies Inc. Expo Technologies Ltd. Qingdao Expo M&E Technologies Co. Ltd 9140 Ravenna Road Unit #3 Unit 2 The Summit, Hanworth Road 329 Huashan Er Lu Twinsburg, Sunbury-On-Thames, Jimo City, Qingdao,...
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