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®
D801-ET MiniPurge
Manual
ML488
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.
Expo Technologies reserves the right to replace any component, with one of the equivalent functionality.
ML488 | v19
13-January-2022
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Summary of Contents for EXPO D801-ET MiniPurge ML488
- Page 1 Manual ML488 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 3: Table Of Contents
Section 1: System Specification ......................1 ® MiniPurge Control Unit Data ............................2 Relief Valve Unit and Purge Outlet Valve with integral spark arrestor ............3 Section 2: Quick User Guide .........................4 Installation ....................................4 Operation of the System ..............................4 Section 3: Application Suitability ......................5 Section 4: Description and Principle of Operation ................6 Section 5: Main Components .......................7 Air Supply Filter ..................................7... -
Page 4: Section 1: System Specification
(-20°C ≤ T ≤ +55°C) For limitations and conditions of use refer to the applicable certificates. ML488 | v19 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: Minipurge ® Control Unit Data
Tolerance -0, +10%. Note: There must be a 1.5 mbarg difference between the minimum pressure and intermediate sensors. ML488 | v19 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: Relief Valve Unit And Purge Outlet Valve With Integral Spark Arrestor
23 kg (50.7 lb) Orifice: Special orifice plate may be required. ML488 | v19 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 7: Section 2: Quick User Guide
Yellow On completion of an uninterrupted purge cycle of the required length, the system will indicate purge complete. ML488 | v19 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 8: Section 3: Application Suitability
® 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... -
Page 9: Section 4: Description And Principle Of Operation
This system has been specifically designed to maintain a stable internal pressure within the enclosure. ML488 | v19 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 10: Section 5: Main Components
Red/”Green” visual indicator. The sensor is factory calibrated to operate on a falling pressure at or above the minimum specified pressure. ML488 | v19 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 11: Purge Flow Sensor
The cable from the switch is terminated in the /PA terminal box. ML488 | v19 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 12: Alarm / Pressurized Switch
INMETRO standards (and must match the certification scheme for the motor). The main requirement is that IP66 (or better) ingress protection must be provided by use of seals or washers. ML488 | v19 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... -
Page 13: Section 6: Installation Of The System
® 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 14: Pipe Work
It is the responsibility of the user to ensure that the switch is only operated within appropriate technical limits. ML488 | v19 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011... - Page 15 Power to apparatus that is already suitable for use in hazardous locations need not be isolated by the ® MiniPurge system. ML488 | v19 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 16: Section 7: Commissioning
• The flashing yellow indicator confirms the timer has started. • The differential pressure should be greater than 6.4 mbarg. ML488 | v19 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: Normal Operation
After this, the purge and pressurization sequence is automatic. ML488 | v19 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: Section 8: Maintenance Of The System
• The adjustment is sensitive, and it is recommended that a turn (maximum) adjustments are applied between tests. ML488 | v19 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 19: Re-Calibration Of The Pressure Sensors
• Turn clockwise to reduce the pressure setting and anti-clockwise to increase. • Replace sensor, screwing clockwise. • Reconnect all pipe work. ML488 | v19 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: Section 9: 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 21: Relief Valve Opens (Continuously Or Intermittently)
The intrinsically safe battery pack • Replace as necessary. is discharged ML488 | v19 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: Section 10: Recommended Spares List
*must be factory set to correct value that is stated on customer system Test & Inspection sheet. NOTE: Replacement of the EPW-EPPS-000 with the IS battery pack ETM-IS31-001 should be carried out after consultation with Expo Technologies site service team. Section 11: Glossary... -
Page 23: Section 12: Drawings And Diagrams
IECEx Certificate IECEx UL 17.0016X * Certificates are attached to the manual. ML488 | v19 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 24 X ±0.5 3RD ANGLE DIMENSIONS IN mm The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential and are returnable upon request. They are not to X.X ±0.2 STD ±1...
- Page 25 DIMENSIONS IN mm OTHERWISE STATED X ±0.5 The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential and are returnable upon request. They are not to X.X ±0.2 STD ±1...
- Page 26 X ±0.5 3RD ANGLE DIMENSIONS IN mm The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential and are returnable upon request. They are not to X.X ±0.2 STD ±1...
- Page 28 [ ] DENOTES IMPERIAL IF IN DOUBT ASK to be copied or communicated in part or in whole without written consent from Expo Technologies Limited, neither are they to be used in any way against our interests. FLATNESS TO BE LESS THAN X.XX ±0.1...
- Page 29 IF IN DOUBT ASK [ ] DENOTES IMPERIAL to be copied or communicated in part or in whole without written consent from Expo Technologies Limited, neither are they to be used in any way against our interests. FLATNESS TO BE LESS THAN X.XX ±0.1...
- Page 30 IF IN DOUBT ASK [ ] DENOTES IMPERIAL to be copied or communicated in part or in whole without written consent from Expo Technologies Limited, neither are they to be used in any way against our interests. FLATNESS TO BE LESS THAN X.XX ±0.1...
- Page 31 IF IN DOUBT ASK [ ] DENOTES IMPERIAL to be copied or communicated in part or in whole without written consent from Expo Technologies Limited, neither are they to be used in any way against our interests. FLATNESS TO BE LESS THAN X.XX ±0.1...
- Page 32 ± © ± ± ± t i r ±...
- Page 38 This Certificate does not replace the original EAC Document In accordance with SERCONS INTERNATIONAL Russian Certification Authority in Europe the company: Expo Technologies Limited, United Kingdom, Unit 2, The Summit Hanworth Road, Sunbury on Thames Sur-rey , TW16 5DB fulfills the necessary requirements to be certified according to EAC regulations.
- Page 48 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 617 Shillin Er Road Twinsburg, Sunbury-On-Thames,...
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