EXPO MiniPurge D760-ES Скачать руководство пользователя

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ML548_ES | v3

12-Aug-2020

D760-ES MiniPurge

Manual

ML 548_ES

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.

Содержание MiniPurge D760-ES

Страница 1: ...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...

Страница 2: ...Purge Valve 9 Purge Flow Regulator 10 CLAPS Sensor 10 CLAPS Regulator 10 Relief Valve Unit 10 PA Terminal Box 10 Thermostat and Heater 10 Section 6 Installation of the System 11 Relief Valve Unit 11 A...

Страница 3: ...ML548_ES v3 ii Section 11 Glossary 20 Section 12 Drawings and Diagrams 20 Section 13 Certifications 21...

Страница 4: ...EXPO 20MDOC1403X as attached Users may decide to connect RTD monitoring circuits as 2 3 or 4 wire circuits as preferred The temperature monitoring circuits themselves are provided by others If the log...

Страница 5: ...t to 2 5 barg 36 psi Process Connections Purge supply and outlet to pressurized enclosure 1 NPT female Minimum supply line 25 mm 1 ID tube inlet sized appropriately for flow rate Reference points sign...

Страница 6: ...barg Tolerance 0 10 Note there must be a 2 5 mbarg difference between the intermediate and CLAPS sensor calibration point For example Minimum pressure 5 mbarg intermediate pressure 6 5 mbarg CLAPS sen...

Страница 7: ...in air supply pressure during the purge process Operation of the System Once the system is installed correctly turn on the air supply Refer to Commissioning section The purge system commences the purg...

Страница 8: ...ay be used in IECEx and ATEX Zone 1 and or Zone 2 Categories 2 and 3 respectively MiniPurge systems may be used for hazards of any gas group Apparatus associated with the MiniPurge system such as intr...

Страница 9: ...enclosure before pressurization Purging is the process of removal contaminated air and replacement with air or inert gas known to be free from flammable gas The duration of this purge process is norma...

Страница 10: ...d indicator turns Red The sensor is factory calibrated and set to operate in falling pressure at or above the minimum specified pressure Purge Flow Sensor The Purge Flow Sensor monitors flow through t...

Страница 11: ...This valve receives a signal from the purge timer that indicates the completion of the purge cycle and verifies that the pressurization signal is still present If both conditions are satisfied a signa...

Страница 12: ...h is operated by the purge flow signal that allows a remote electrical system status indicator to signal that the system is purging sometimes referred to as purge in progress The cable from the switch...

Страница 13: ...it When the system changes to leakage compensation mode the Purge Outlet Valve is closed and the enclosure sealed The Relief Valve Unit has an in built relief valve This is sized to ensure that if the...

Страница 14: ...s might affect the calibration of the device In particular the exterior of the spark arrestor should not be painted or blocked in any way Air Supply Quality The MiniPurge system should be connected to...

Страница 15: ...bove the minimum the Minimum Pressure Sensor re turns a positive pressurized signal causing the alarm indicator on the control unit to change from red to green When the pressure falls below the minimu...

Страница 16: ...and all screws in the terminals are secure In all cases the application and isolation of power must be controlled by the MiniPurge system using the power interlock signal No switches are permitted bet...

Страница 17: ...Pag 7 Check that the pressure gauge on main air supply reads 4 2 barg 61 psi 420 kPag 8 Check that the Pressure Relief Valve is correctly set by isolating the High Pressure Sensor and Purge Outlet Val...

Страница 18: ...r until intermediate sensor causes contacts to open 18 Check reading on manometer matches calibration label on pressure sensor 19 Continue to reduce the CLAPS Regulator to test the minimum pressure se...

Страница 19: ...s is suitable for use in the hazardous location There are no unauthorised modifications The air supply is uncontaminated The interlocks and alarms function correctly Approval labels are legible and un...

Страница 20: ...thread sealant If the thread has seized up remove to a safe area and heat slightly to soften prior to making any adjustment This prevents potential damage to the brass of the nozzle Disconnect pipe w...

Страница 21: ...been designed for ease of fault finding and many of the components fitted are plug in or chassis mounted Check components by substitution only after establishing that such action is necessary Before...

Страница 22: ...uring purge Check air supply pressure at the inlet to the control unit Ensure that the supply pipe bore is suitable for the flow rate Pressurized Enclosure Excessive leakage from the pressurized enclo...

Страница 23: ...y set to the value as stated on the Customer Test and Inspection Sheet S0015 018 Pressure gauge Air Supply Pressure 0 10 barg S0015 135 Miniature gauge Logic Pressure 0 4 barg AGE GE00 168 Electronic...

Страница 24: ...01ATEX1295X IECEx Certificate IECEx SIR07 0027X Ex e Terminal Box ATEX Certificate BASEEFA 06ATEX0117X IECEx Certificate IECEx BAS06 0028X Electronic Timer ATEX Certificate FM 10 ATEX0003X IECEx Cert...

Страница 25: ...QILGHQWLDO DQG DUH UHWXUQDEOH XSRQ UHTXHVW 7KH DUH QRW WR EH FRSLHG RU FRPPXQLFDWHG LQ SDUW RU LQ ZKROH ZLWKRXW ZULWWHQ FRQVHQW IURP SR 7HFKQRORJLHV LPLWHG QHLWKHU DUH WKH WR EH XVHG LQ DQ ZD DJDLQVW...

Страница 26: ...17 7 21 6 2 1 5 1 352 7 21 7KH FRQWHQWV RI WKLV GUDZLQJ GRFXPHQW DUH RS ULJKW SR 7HFKQRORJLHV LPLWHG 7KH DUH WR EH WUHDWHG DV FRQILGHQWLDO DQG DUH UHWXUQDEOH XSRQ UHTXHVW 7KH DUH QRW WR EH FRSLHG RU F...

Страница 27: ...5 752 31 80 7 32 5 6833 336 6 67 0 5 8 725 6 67 0 5 8 725 8 2 6833 5 8 725 2 6833 5 8 725 8 385 2 5 8 725 385 2 5 8 725 8 G 7 5 233 5 3 3 7 1 5 2 5 57 6 1625 0 17 5 57 6 1625 G 7 50267 7 5 1 352 7 21...

Страница 28: ...1 2 76 5 9 1 7 7 1 72 72548 2 1P OEI LQ 5 1 352 7 21 7KH FRQWHQWV RI WKLV GUDZLQJ GRFXPHQW DUH RS ULJKW SR 7HFKQRORJLHV LPLWHG 7KH DUH WR EH WUHDWHG DV FRQILGHQWLDO DQG DUH UHWXUQDEOH XSRQ UHTXHVW 7KH...

Страница 29: ...interests DIMENSIONS IN mm DENOTES IMPERIAL WEIGHT Kg TITLE DO NOT SCALE IF IN DOUBT ASK FINISH MATERIAL A3 SCALE DRAWING STATUS A TOLERANCES UNLESS OTHERWISE STATED FLATNESS TO BE LESS THAN 0 4 OVER...

Страница 30: ...RECOMMENDED MINIMUM SIZE FOR PURGE AIR DISTRIBUTION PIPEWORK ELECTRICAL SIGNAL VIA EEx e JUNCTION BOX B C D E F 8 5 7 6 4 3 1 2 3RD ANGLE PROJECTION The contents of this drawing document are Copyrigh...

Страница 31: ...d IIC T6 OPTIONAL AC 15 4A 250V Ex d IIC T6 COMPLETE CONTACTS ALARM CONTACTS LOW PRESSURE HIGH PRESSURE INTERMEDIATE LOW PRESSURE SYSTEM PURGING PURGE PURGE INLET PRESSURE ENCLOSURE MOTOR ENCLOSURE PR...

Страница 32: ...PPLY SUPPLY PT100 RTD SENSOR PT100 RTD SENSOR TYPICAL TYPICAL 4 WIRE BARRIER CONNECTION 4 WIRE BARRIER CONNECTION 1 SH SH B C D E F 8 5 7 6 4 3 1 2 3RD ANGLE PROJECTION The contents of this drawing do...

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Страница 49: ...poworldwide com Expo Technologies Ltd Registered in England No2854600 www expoworldwide com Expo Technologies purge pressurization systems may incorporate temperature sensors based on platinum resista...

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Страница 52: ...chnologies UK Expo Technologies Ltd Unit 2 The Summit Hanworth Road Sunbury On Thames TW16 5DB UK T 44 20 8398 8011 F 44 20 8398 8014 E sales expoworldwide com Expo Technologies China Qingdao Expo M E...

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