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®
D818-ET MiniPurge
Manual
ML 511
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.
ML511 | v13
28-June-2022

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Summary of Contents for EXPO MiniPurge D818-ET

  • Page 1 Manual ML 511 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.
  • Page 2: 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 ..............
  • Page 3: Section 1: System Specification

    Ex [pxb] ia IIC T5 Gb Ex [pxb] ia IIIC T100ºC Db -20ºC to +55ºC ML511 | 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...
  • Page 4: Minipurge ® Control Unit Data

    Purge Time: User selectable, in 1 minute intervals, up to 99 minutes (tolerance -0, +3 seconds). ML511 | 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...
  • Page 5: Relief Valve Unit And Purge Outlet Valve With Integral Spark Arrestor

    4 kg (8.8 lb). Note: Special settings are available on request, see Test and Inspection Sheet. ML511 | 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...
  • Page 6: Section 2: Quick User Guide

    Status Alarm / Pressurized Green Pressurized and in leakage compensation mode ML511 | 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...
  • Page 7: 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 8: Section 4: Description And Principle Of Operation

    This system has been specifically designed to maintain a stable internal pressure within the enclosure. ML511 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
  • Page 9: Section 5: Main Components

    This sensor is factory calibrated to operate on falling flow rate at or above the minimum specified purge flow rate. ML511 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
  • Page 10: Intermediate Sensor

    Warning: It is potentially dangerous to energise the pressurized enclosure in an non-pressurized condition when it is known that there is potentially explosive gas or dust in the hazardous location. ML511 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
  • Page 11: Visual Indicators

    It either increases or decreases the air flow into the enclosure as appropriate to maintain a stable running pressure. The CLAPS Regulator must be set at the time of commissioning. ML511 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
  • Page 12: Relief Valve Unit

    ® 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 13: Pipe Work

    ML511 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
  • Page 14: Power Supplies And Their Isolation

    1. Check all connections and that the Relief Valve Unit is fitted correctly with an unobstructed path to the purge exhaust. ML511 | v13 Page Expo Technologies UK Expo Technologies US Expo Technologies China T: +44 (0) 20 8398 8011...
  • Page 15 15.Gradually turn the CLAPS Regulator anti-clockwise to reduce enclosure pressure. 16.Reduce regulator until intermediate sensor causes contacts to open. ML511 | 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...
  • Page 16: Normal Operation

    After this, the purge and pressurization sequence is automatic. ML511 | 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...
  • Page 17: Section 8: Maintenance Of The System

    To adjust the lift off pressure of the Relief Valve: • Attach test equipment as described in the Commissioning Section. ML511 | 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...
  • Page 18: Re-Calibration Of The Pressure Sensors

    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: Section 9: Fault Finding

    CLAPS setting • Refer to Re-calibration of Pressure Sensors in the Maintenance section ML511 | 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...
  • Page 20: Relief Valve Opens (Continuously Or Intermittently)

    CLAPS Sensor must be factory set to the value as stated on the Customer Test and Inspection Sheet ML511 | 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...
  • Page 21: Section 11: Glossary

    Manual Override Switch Hook-up AGE-WC00-117 Size 3 MotorPurge Relief Valve XBR-RTD0-010 ML511 | 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...
  • Page 22: Section 13: Certifications

    IECEx Certificate IECEx EPS 14.0092X *Certificates are attached to the manual. ML511 | 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...
  • Page 25 [ ] 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 33 19ATEX0542X...
  • Page 39 IECEx Certificate of Conformity INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC Certification System for Explosive Atmospheres for rules and details of the IECEx Scheme visit www.iecex.com Certificate No.: IECEx SIR 06.0087X Page 1 of 4 Certificate history: Issue 5 (2014-07-30) Status: Current Issue No: 6 Issue 4 (2014-05-20) Issue 3 (2014-05-08) Date of Issue:...
  • Page 40 IECEx Certificate of Conformity Certificate No.: IECEx SIR 06.0087X Page 2 of 4 Date of issue: 2021-09-30 Issue No: 6 Manufacturer: ABTECH Limited A B Controls & Technology Sanderson Street Lower Don Valley Sheffield S9 2UA United Kingdom Manufacturing locations: This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements.This certificate is granted subject to the conditions as set out in IECEx Scheme...
  • Page 41 IECEx Certificate of Conformity Certificate No.: IECEx SIR 06.0087X Page 3 of 4 Date of issue: 2021-09-30 Issue No: 6 EQUIPMENT: Equipment and systems covered by this Certificate are as follows: SPECIFIC CONDITIONS OF USE: YES as shown below: When used in an EPL ta (Da) application the power supply to the equipment is to be rated for a prospective short circuit current of not more than 10 kA.
  • Page 42 IECEx Certificate of Conformity Certificate No.: IECEx SIR 06.0087X Page 4 of 4 Date of issue: 2021-09-30 Issue No: 6 DETAILS OF CERTIFICATE CHANGES (for issues 1 and above) This issue, Issue 6, recognises the following change; refer to the certificate annex to view a comprehensive history: Issued to Update the QAR.
  • Page 43 Annexe to: IECEx SIR 06.0087X Issue 6 Applicant: ABTECH Limited Apparatus: BPG Range of Junction Boxes The BPG range of junction boxes utilises a BPG enclosure covered by certificate number Sira 99ATEX3172U and are fitted with an arrangement of suitably certified terminals. BPG ref.
  • Page 44 Annexe to: IECEx SIR 06.0087X Issue 6 Applicant: ABTECH Limited Apparatus: BPG Range of Junction Boxes EPL Da BPG ref. Maximum Power Dissipation (W) T6/T85°C T6/T85°C T6/T85°C T6/T85°C T5/T100°C T4/T100°C Ta +40°C Ta +55°C Ta +60°C Ta +65°C Ta +55°C Ta +90°C (max) (max)
  • Page 45 Annexe to: IECEx SIR 06.0087X Issue 6 Applicant: ABTECH Limited Apparatus: BPG Range of Junction Boxes Full certificate change history Issue 1 – this Issue introduced the following change: 1. To allow GB/SIR/ExTR06.0101/01 to replace GB/SIR/ExTR06.0101/00 Issue 2 – this Issue introduced the following changes: 1.
  • 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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