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®
D829/ET MiniPurge
Manual
ML538
Important Note:
It is essential for safety that the installer and user of the Expo system follow these
instructions.
Please refer to the standard for principles and definition.
These instructions apply only to the pressurizing system. it is the responsibility of the
manufacturer of the pressurized enclosure to provide instructions for the enclosure.
ML538 | v8
19 January 2024
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Table of Contents
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Summary of Contents for EXPO MiniPurge D829/ET
- Page 1 Manual ML538 Important Note: It is essential for safety that the installer and user of the Expo system follow these instructions. Please refer to the standard for principles and definition. These instructions apply only to the pressurizing system. it is the responsibility of the manufacturer of the pressurized enclosure to provide instructions for the enclosure.
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Page 2: Table Of Contents
System Specification ......................... 1 MiniPurge® Control Unit Data ....................2 Pressure Relief/Outlet Valve with Integral Spark Arrestor ............3 Quick User Guide ........................3 Installation ..........................3 Operation of the System ......................3 Application Suitability ........................ 4 Description and Principle of Operation ..................5 Main Components ........................6 Air Supply Filter / Regulator ..................... -
Page 3: System Specification
-20ºC ≤ T ≤ +55ºC For limitations and conditions of use refer to the applicable certificates on ML497 ML538 | v8 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... -
Page 4: Minipurge® Control Unit Data
Minimum: 5.0 mbarg. Maximum: 15 mbarg. Default Setting: 10 mbarg. Tolerance: -0, +10% ML538 | v8 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... -
Page 5: Pressure Relief/Outlet Valve With Integral Spark Arrestor
Black The purge system commences the purge cycle: • The purge air will enter the enclosure. ML538 | v8 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... -
Page 6: Application Suitability
If an obvious problem has not been highlighted and corrected, follow the procedures in the Fault Finding section. If all checks have been carried out and the system still does not perform as expected, contact your local distributor or Expo Technologies. Section 3: Application Suitability ®... -
Page 7: Description And Principle Of Operation
The following materials are used in the construction of MiniPurge systems. If substances that will adversely affect any of these materials are present in the surrounding environment, please consult Expo Technologies for further guidance. Materials of Construction Stainless Steel Polyurethane... -
Page 8: Main Components
This sensor is factory calibrated to operate on falling flow rate at or above the minimum specified purge flow rate. ML538 | v8 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 9: Electronic Purge Timer
The cable from the switch is terminated in the /PA terminal box. ML538 | v8 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 10: Alarm / Pressurized Switch
ML538 | v8 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... -
Page 11: Pa Terminal Box
® The MiniPurge is designed for use under normal industrial conditions of ambient temperature, humidity and vibration. Please consult Expo before installing this equipment in conditions that may cause stresses beyond ® normal industrial conditions. The MiniPurge system must be installed by a competent person in accordance with relevant standards, such as IEC / EN 60079-14, and any local codes of practice. -
Page 12: Pipe Work
(dry) contacts within the pressurized enclosure. This is commonly achieved using the Power Interlock Switch. ML538 | v8 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 13: Power Interlock Switch
4. Check that the internal logic pressure gauge reads 2.3 barg / 33 psi / 230 kPag. 5. Check that the pressure gauge on main air supply reads 4 barg / 60 psi / 400 kPag. ML538 | v8 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... - Page 14 Times in excess of minimum are permit- ted. ML538 | v8 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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Page 15: Maintenance Of The System
• Replace large cover plate. • Check the condition of the air supply filter element. Clean or replace as necessary. ML538 | v8 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... -
Page 16: Additional Maintenance Checks
ML538 | v8 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... -
Page 17: Re-Calibration Of The Relief Valve Unit
• Turn clockwise to reduce the pressure setting and anti-clockwise to increase. • Replace sensor, screwing clockwise. • Reconnect all pipe work. ML538 | v8 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... -
Page 18: Fault Finding
General Information If you are having problems that cannot be corrected using one of the methods described, please call Expo or your supplier for further assistance. If the system is less than 12 months old, parts under warranty should be returned to Expo for investigation. -
Page 19: Relief Valve Opens (Continuously Or Intermittently)
Miniature gauge (Logic Pressure), 0-4 barg ETM-IS31-001 IS battery pack for electronic timer module ML538 | v8 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... -
Page 20: Glossary
TÜV 12.1462X MIU/e Ex e Terminal Box EU Declaration of Conformity SC027* ML538 | v8 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... - Page 21 EAЭC RU C-DE.AH07.B.04162/22 EAC Certification * Documents are attached to the manual. ML538 | v8 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...
- Page 22 The following materials are used in the construction of MIU/e: Stainless Steel, Steel, Brass, Copper, Polyamide, Silicone. If substances that will adversely affect any of these materials are present in the surrounding environment, please consult Expo Technologies for further guidance. This equipment is designed for use under normal industrial conditions of ambient temperature, humidity and vibration.
- Page 28 BROWN GREY BLACK BROWN GREY BLACK BROWN BLACK BLUE GREY BROWN GREY BLACK...
- Page 32 19ATEX0542X...
- Page 36 T : +44 20 8398 8011 E : euar@expopharma.ie E : sales@expoworldwide.com Expo Technologies Inc. Expo Technologies China Expo Technologies Inc. Qingdao Expo M&E Technologies Co. Ltd 9140 Ravenna Road Unit #3 617 Shilin Er Lu Twinsburg, Jimo District, Qingdao, OH 44087, USA...
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