VAC DRI-TRAIN HE-493 Technical Manual
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VAC DRI-TRAIN HE-493 Technical Manual

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  • Page 2 • .Orawi ngs and photos herein add to the overall clarity and accuracy of the text. Additional requirement for information relative to any VAC system should be referred to: Vacuum/Atmospheres Company 4652 West Rosecrans Avenue P.
  • Page 3 Before any item may be returned for repair or replacement, a Returned Goods Authorization Number {RGA) must be obtained from the VAC Sales Department. Be prepared to provide information about the chemicals which the item to be returned has been exposed. VAC Sales may be reached at:...
  • Page 4 Vacuum/ Atmospheres Company will not accept a returned Rotron Blower unless the blower has been decontaminated by your facility. Documentation showing that all contamination has been removed must be provided. An RGA (Returned Goods Authorization) must be obtained from VAC before any blower may be re­ turned for repairs. Rotron Blower...
  • Page 5 90 days; others are warranted for one year. VAC warrants that it will re p air, or furnish, F.O.B. its factory, a re p lacement p rovided a p art is found to have...

  • Page 6: Table Of Contents

    fl.lC ___________________ Vacuum/Atmospheres TABLE OF CONTENTS SECTION PARA TITLE PAGE ... . . INTRODUCTION ... . WARRANTY ..
  • Page 7 �C ___________________ Vacuum/Atmospheres LIST OF ILLUSTRATIONS FIGURE TITLE PAGE DRI-TRAIN/DRI-LAB SIMPLIFIED SYSTEM • • • • • HE-493 DRI-TRAIN (Side of Glove Box) • • 1-4 HE-493 DRI-TRAIN (Front of Glove Box) • • • 1 - 5 HE-493 ASSEMBLY • • • • • • • • • • • • • • • • • • • HE-493 DRI-TRAIN FLOW DIAGRAM •...
  • Page 8 VAC ______________________ Vacuum/Atmospheres SECTION 1. GENERAL APPLICATION The purpose of the HE-493 ORI-TRAIN is to provide a moisture and oxygen­ free atmosphere by recirculating an inert gas inside a glove box such as a Vacuum/Atmospheres DRI-LAB. This permits handling of materials sensitive to moisture and oxygen contamination.
  • Page 9 VAC ______________________ Vacuum/Atmospheres The DRI-TRAIN/DRI-LAB system is a completely sealed, recirculating system. When the desired atmosphere is attained, the gas is contin- uously recirculated. This recirculating gas continually undergoes moisture and oxygen removal, and is automatically replenished as neces­ sary. ( See Figures 1-1 through 1-4. )

  • Page 10: Regeneration

    141C _________________ Vacuum/Atmospheres PURIFIER ORI-LAB VAC. PUMP � REGENERATION P U RGE Figure 1-1. DRI-TRAIN / DRI - LAB Simplified System -2 / 84 HE - 493-.
  • Page 11 VAC _______________________ Vacuum/Atmospheres Circulation Valve Inlet to HE-493) Rege Contr ir culation alv e utlet fr o m E - 4 9 3 ) Figure 1-2. HE-493 DRI-TRAIN (Standard mounting on left end panel of DRI-LAB) PURIFIER Figure 1-3. HE-493 DRI-TRAIN (From front of DRI-LAB)

  • Page 13: Specifications And Dimensions

    VAC ______________________ Vacuum/Atmospheres Table 1-1. SPECIFICATIONS AND DIMENSIONS 5 cfm. Flow Rate: Piping: copper. Connections are 0-ring sealed. Power: 5 amp, 115 v, 50/60 cy. Purifier: 100% of atmosphere passes through the moisture/ oxygen purifier beds at room temperature. Oxygen removal capacity: 13 liters;...

  • Page 15: Vacuum Pump

    VAC _____________________ Vacuum/Atmospheres Table 1-2. MAJOR HE-493 ORI-TRAIN COMPONENTS (Cont.) ITEM SYMBOL NOMENCLATURE Junction Boxes (2). One inside glove box for connect­ ing power to blower. One above purifier for connecting power to heater in purifier. VACUUM PUMP. (Separate purchase.) Evacuates the system.

  • Page 16: Utility Requirements

    VAC _____________________ Vacuum/Atmospheres SECTION 2 . INSTALLATION GENERAL Read all instructions t hrough completely before beginning. These instructions are standard, and some may not apply to custom systems. Remove components from crate. Remove all packing, tape, and shipping blocks or bands.
  • Page 17 Sealstik fittings; compression fittings and flare fittings are not recommended. If in doubt, pl ease consult with the VAC representative for your area, or c ontact the factory direct. 2-2.1 Regeneration Gas Connection is located on top of Regeneration Control Box (see Figure 1-4) HE-493 assemb ly.
  • Page 18 Vacuum Valve Evacuates air from the purifier. UTILITY CONNECTION VOLTS/AMPS PHASE/FREQ. FUNCTION Electrical Junction Box 115 vac, Single To supply electrical 5 amps 50/60 hz p ower for Purifi er operations. HE- 4 93-7/ 8 0...
  • Page 19 VAC ________________ Vacuum/Atmospheres FLOWMETER CIRCULATION INLET BLOWER REGENERATION . GAS LESS THAN 4% HYDROGEN PURIFIER CIRCULATION OUTLET VACUUM DRI-L R B VENT LEGEND � HAND VAL VE SOLENOID VALVE HE- 4 9 3 DRI - TRAIN Flow Diagram Figure 2-1.

  • Page 20: Electrical Checkout

    VAC ______________________ Vacuum/Atmospheres SECTION 3. INITIAL SETUP GENERAL It is strongly recommended that anyone attempting to set up and operate the HE-493 read the entire manual throu g h before beginning. Initial setup of the HE-493 follows the general se q uence below:...
  • Page 21 VAC _____________________ Vacuum/Atmospheres Table 3-1. ELECTRICAL CHECKO UT STE P ACTION EXPECTED RESULT External power off. 5 amp circu it breaker Reset by pus hing in if required. Turn REGENERATION TIMER VACUUM. Turn REGENERATE/CIRCULATE switc h to OFF. Connect power to control box .
  • Page 22 LEAK TEST These instructions are standa rd and may not apply to custom systems. VAC recommend s the use of a helium leak detector if pos sib le. Do n ot use halogen leak detection equipment for leak testing. Halogens are harmful to seals, copper, and other materials used in the construction of VAC equipment.
  • Page 23 Page# 1 Vacuum /Atmospheres Corporation "Leak Testing #105-HE-493 & MO-5" Leak Test Procedures for HE-493, MO-5, HE-493-SB & MO-5 SB Dri-Train with HE-63-P or PC-1 Pedatrol, Dri-Lab and Oxygen Analyzer These tests assume that the gloves are installed, the antechamber doors and valves are closed and manual purge exhaust valve is closed.
  • Page 24 Page# 2 Inches Water Column Positive (gloves pushed out). Use Snoop (bubble solution) and Snoop everything on the Dri-Lab and/or Ori-Train watching closely for bubbles. -2" Negative Test, (-2 Inches Negative Water Column Pressure).This test is most effective when you have an Oxygen Analyzer. Without an Oxygen Analyzer you would have to rely on the Broken Light Bulb Test or some other Indicator.
  • Page 25 Page# 3 does get warm after two or three hours into the regeneration cycle; if not , check fuse f r heater and voltage at heater terminals. ( B) Record regeneration gas cylinder pressure before and after regeneration to assure that proper amount was consumed. { C} Check to see that the regeneration gas is actually Forming Gas ( inert gas with Hydrogen).
  • Page 26 IU-ILi _ _ ____________________________ VacuumlAtmospheres � ;:..., � � ..@< ..Vl1Cil739S :,() /NlJfC'PT'"OR £,c.,r ,R,Et} IUJ88ER covcRFD WIR£ V,:lC #.5/ .µ !o/z -1S"LG- TE,rl,#;.,;.i iie, ST�IP 2flf7o6,'<165Flt66 " ' - N'ElfiRRK 6-'S2-�¾L� 2 �, HEAi>- &RtW �INC> VRC *2000 CONNECTOR �...

  • Page 29: Initial Regeneration

    l/AC _____________________ Vacuum/Atmospheres Open circulation outlet valve (B) slowly (Step H) to refill purifier. If connected to DRI-LAB (glove box), care should be taken in refilling to avoid a vacuum condition in the DRI-LAB. H. Refill purifier with Outlet Circulation valve (B) open. I.
  • Page 31 VAC _ ___________________ Vacuum/Atmospheres LARGE QUANTITIES OF HALIDES, CHLORIDES, HALOGENS (FREON), ALCOHOLS, HYDRAZINE, PHOSPHENE, ARSINE, ARSINATE, MERCURY AND SATURATION WITH WATER M AY ALSO DEACTIVATE THE OXYGEN REACTANT IN THE ORI-TRAIN. THE MOISTURE AND ADSORBENT IS NOT AFFECTED BY THESE CHEMICALS.
  • Page 32 �C ______________________ Vacuum/Atmospheres 3-5 ESTABLISHING AN INERT ATMOSPHERE If customer uses an evacuable vacuum glove box or VAC-LAB, evacuate VAC-LAB, back fill with inert gas, then start regeneration (paragraph 3-5). Install a valve in pressure sensing line of PEOA­ TROL.
  • Page 33 �C _______________________ Vacuum/Atmospheres When the gas cylinder nears empty (or when approximately eight volumes of gas have been purged through the glove box), reset regulator to 20 psi, replace service port plug, and then reset Photohelic pressure limit as desired. INotal For initial startup, proceed to Regeneration Proce­...

  • Page 34: Operations & Theory

    VAC ______________________ Vacuum/Atmospheres SECTION 4. OPERATIONS & THEORY GENERAL The HE-493 ORI-TRAIN is designed to control the oxygen and moisture content in the atmosphere of a sealed glove box. It can run continu­ ously and need not be turned off, except for maintenance.
  • Page 35 £OAOIN& PROCEOURe. (.0AD,,.L5$. Ol"HO£.ECULAR !VEVE (!n;;11"3J) r�u rtJPl'Olltr (!l#AKB roLEVEL TOP C,I' SIEYS) 2.- LORD OXYSEN G,l=f'1'E!f (1reH •.;o, 5 I.SS, REF) THR'U TOP PORT Clf. ' ) (SHRl<E TO I.EV/:/.. TOP OP: .3r t.OAO llfi,LS.S, OF HOI.ECUAR 5/EYE (treH 3I) TIIRV TOP Pelltr "' (5-E ro t.Ei/E/..
  • Page 36 l/AC ________________ � ____ Vacuum/Atmospheres through the three layers of chemicals into the lower plenum, and then through the lower outlet where it is returned to the glove box. The purifier comes encased in an insulation blanket for the protection of the operator during the regeneration cycle.

  • Page 37: Oxygen Removal

    VAC ______________________ Vacuum/Atmospheres Unfasten the four upper and four lower retainer nuts and the three upper and lower retainer flange nuts. Open Junction box located on top of the purifier and disconnect wiring. Remove red cap from purge solenoid valve (J) to slip valve off fitting.

  • Page 38: Levels Of Purity Attainable

    VAC ______________________ Vacuum/Atmospheres at ambient temperature, and are regenerated by the same process. Also removed by the sieve at ambient temperature are carbon dioxide, sulfur dioxide, nitrogen dioxide, hydrogen sulfide, carbon monoxide, and many organic compounds including: alcohols, aromatics, amines, halogenated compounds, oxygenated compound s, hydrocarbons, and organic acids.

  • Page 39: Oxygen Recovery Rates

    VAC ______________________ Vacuum/Atmospheres 1,000 soo ______ 600-------i t.!) � 2 00 1------tirl----+---I TIME-MINUTES Figure 4 -2. Oxygen Recovery Rates 4 -7 REGENERATION Regeneration of the purifier is performed when the purifier is no longer maintaining the required atmospheric purity in the glove box.
  • Page 40 3-5.1, Regeneration Cycle). As mentioned in Section 3. INote VAC rec ommends that the cu stomer regenerate the purifier approximately once a week if customer's proc esses produce c orros ive o r normally h armful vapors that tend to saturate the contents.

  • Page 41: Circulator/Blower

    VAC __ __ _________________ Vacuum/Atmospheres the purifier at a fixed flow rate of one-third cubic foot per minute (a rate set during installation ensuring an adequate amount of hydrogen in the Q5 absorbent during the PURGE cycle of the regeneration process).

  • Page 42: Gas Flow Diagram

    IU-ILi ________________ Vacuum/Atmospheres FLOWMETER PURGE CIRCULATION INLET 1------ BLOWER REGENERATION 'IBAN LESS HYDROGEN PURIFIER CIRCULATION OUTLET VACUUM DRI-LRB VENT LEGEND � HAND VALVE SOLENOID VALVE Figure 4-3 . Gas Flow Diagram HE-493-R3-7 /90...
  • Page 43 VAC , __ __ __________________ Vacuum/Atmospheres VACUUM PUMP (Customer Furnished) A two-stage 4.5 cfm pump, or equivalent, is required during regeneration of the H E-49 3 ( and during pressure control of the glove box). Informa­ vacuum pump runs continuously when main (outside) power is on.

  • Page 44: Maintenance And Troubleshooting

    Halogens are harmful to seals, copper, and other materials used by Vacuum/Atmospheres Company. VAC will n ot assume responsibility for systems tested by methods other than defined in this manual , and recommends that the customer use a helium leak detector.
  • Page 45 �C _____________________ Vacuum/Atmospheres Vacuum p um p disconnected from the VACUUM valve and associated plurrbing. ° Connect the helium leak detector at the VACUUM valve line. ° Close the ORI-TRAIN inlet and outlet val ves (manually). With the REGENERATION TIMER in VACUUM position, the regeneration gas PURGE and VENT val ves are deenergized .
  • Page 46 II.IC ______________________ Vacuum/Atmospheres If the HE-493 is installed on a ORI-LAB, a slight negative ef feet wi 11 occur in the glove box when refilling the purifier. Reconnect the vacuum pump to the VACUUM valve plumbing. 5-1.3 Vacuum Pump Oil The oil in the vacuum pump should be replaced: After each regeneration.
  • Page 47 l#IC ______________________ Vacuum/Atmospheres Valves - solenoid and manual Regeneration Timer Leaks Circulator/Blower Replacement of charge in purifier Pressure (in glove box) 5-2.1 Solenoid Valves Proper operation of the solenoid valves is verified by testing for the presence of a magnetic field around the body of the solenoid. This is done by placing a small magnet near the red cap on the solenoid.
  • Page 48 VAC _____________________ Vacuum/Atmospheres to splice wires onto the pigtail leads attached to the replacement solenoid. It is strongly recommended that the electrician use pre­ insulated splices of the STAKON type. If the so lenoid and its related circuitry are n ot at fau lt, and a mech anic al f ailure is indic ated , refer to Table 5-1 as a means of verifying the sym ptom of valve failure.
  • Page 49 LTfl DATE REVISION 2-,U.8'11 l(EPRAWN ·I I BLR CIRCULATE BLOWER / fLT � - �- -- - -; G' CIRCULATE UC. H T REC.ENE RATE --�----- ---1 ' R _.,,, 2L T R.£GE.NERATE LIGHT , - -- - - ---- ®...

  • Page 50: Valve (Solenoid & Manual) Failure Indication

    VAC _____________________ Vacuum/Atmospheres Table 5-1. VALVE {SOLENOID AND MANUAL) FAILURE INDICATION VALVE FAILURE INDICATION PURGE {J) FAILURE TO ENERGIZE VENT {N) Note Both J and N solenoid valves work together. I f either fails, the following would be evident: - Regeneration failure.
  • Page 51 1/AC ______________________ Vacuum/Atmospheres Table 5-1. VALVE ( SOLENOID AND MANU AL) FAILURE INDICATION (Cont.) VALVE FAILURE INDICATION VACUUM (K) (continued) INotel Regeneration failure is a term which mea n s that a f t e r a f u ll r egenera tio n c ycle (pa rag r a p h 3-5.1) the purity of the system is not being maintained.
  • Page 52 VAC _____________________ Vacuum/Atmospheres T able 5-1. VALVE (SOLENOID AND MANUAL) FAILURE INDICATION (C ont.) VALV- E FAILURE INDICATION FAILURE TO OPEN CIRCULATION INLET ( A ) CIRCULATION OUTLET If either of the manua 1 inlet/out- 1 et valves fail, the following...
  • Page 54 VAC __ __ __________________ Vacuum/Atmospheres Blower is not damaged by running when the ORI-TRAIN inlet and outlet valves (A & B} are closed. 5-2.5 Charge Replacement Refer to paragraph 4-3.1, herein. 5-2.6 Pressure Problems Malfunctions in the HE-493 ORI-TRAIN which could cause increases or...

  • Page 55: Vacuum Pump

    RANTY at the beginning of this manual. REWORKED PARTS Most parts purchased by VAC for use in the HE-493 are reworked at the factory in various necessary ways to make them leak free under light gas conditions such as those which are common to ORI-TRAIN applications.

  • Page 58: I-I

    �r; ___________________ � __________ Vacuum/Atmospheres INDEX (continued) PARA TABLE FIGURE Model Variations •••••••••••••••••••••••••• 1-3 Operations •••••••••••••••••••.•••.•••••••• 4 Oxygen Recovery Rates ••••.••••••••••••••••••••••••••••••••••••••••••••••••• 4-2 Removal •••••••••••.•••••••••••..•••.•.• 4-4 Plumbing Connections •••••••••••••••••••••• 2-2 ••••••••••• 2-1 Power ..•.•..•...•..••.••••.•...•..••..•.•..••. 1-1 Purifier •••••••••••••••••••••••••••••••••• 4-2 ••••••••••• l-l, ••••••••••• 4-l ..........
  • Page 59 VAC ______________________________ Vacuum/Atmospheres TABLE FIGURE INDEX PARA Vacuum Leak Check .••••.••.•••••••••.•.•••••.•. 3-3.1 Pump ••••••••••••••••••••••••••••••••••• 1-2 ••••••••••• 1-2, ...•...•....2-2.2, ..2-1 ••••••••••••••••••••••••••••••••••• 4-9, 6-4, ••••••••••••••••••••••••••••••••••• A pp endix Valves .••••••••••••••.•••••••••..••••••.•. 3-5.1 .•••••••• 1-2 Vent •••••••••••••••••••••••••••••••••••••• 2-2.4 Warnings •••••••••••••••••••••••••••••••••• 3-5.1, •••••••• 3-2 ..•......
  • Page 60 �C _ ______________________ Vacuum/Atmospheres APPENDIX A VACUUM PUMP...

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