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Summary of Contents for Thermo Scientific 495 Series
- Page 1 Classic Electrically Heated Stills OPERATION MANUAL AND PARTS LIST SERIES 495 Model Numbers A1011 A1015 A1013 A1016 60004BI • 5/23/07...
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Page 2: Table Of Contents
Table of Contents Safety Information ..............................3 Alert Signals ..............................3 Warnings ................................3 Introduction................................5 Evaporator ................................5 Condenser ................................5 Features Provided ............................6 Electric Heat..............................6 Low Water Cut-Off ............................6 Still Heat Control ..............................7 Unpacking ................................8 Installation ................................9 Siting ................................9 Accessories ..............................9 Plumbing Connections ............................9 Electrical Connections ............................11 Operation ................................12 Initial Startup ..............................12... -
Page 3: Safety Information
Care should be taken when installing, operating or servicing Barnstead products. The specific safety notes pertinent to the Thermo Scientific Barnstead Electrically Heated Stills are Caution listed in safety information section. Cautions alert you to a possibili- Your Barnstead Electrically Heated Still has been de- ty of damage to the equipment. - Page 4 AFETY NFORMATION Avoid splashing disinfecting solutions on cloth- ing or skin. Ensure all piping connections are tight to avoid leakage of chemicals. Always depressurize chemical lines before dis- assembly. Ensure adequate ventilation. Follow carefully the manufacturersʼ safety in- structions on labels of chemical containers and Material Safety Data Sheets (M.S.D.S.).
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Page 5: Introduction
Introduction Thermo Scientific Barnstead electrically heated water stills are available in four sizes; 1, 2, 5 and 10 gallons per hour of distilled water. The distilled water produced by the stills contains not more than 1.0 ppm total solids, with a pH value of 5.4 to 7.2 and an electrical resistance of not less than 300,000 ohms at 25°C when the stills... -
Page 6: Features Provided
NTRODUCTION Features Provided All stills are equipped with a deconcentrator to continu- ously deconcentrate impurities from the evaporator and retard scale formation. A constant level device with hot well arrangement is provided for evaporator water level control and for primary elimination of volatile impurities. All stills are equipped with a drain valve. -
Page 7: Still Heat Control
NTRODUCTION Still Heat Control The heat control consists of a cabinetized contactor designed for wall mounting. The contactor cabinet has a removable cover and knockouts for conduit connections. The contactor is provided to control the heat supply to the still heating elements, as determined by the low water cut- off controller. -
Page 8: Unpacking
Unpacking Unpack the still carefully so as not to damage any of the parts. Ensure that all parts are removed from the container befoer discarding the packing materials. -
Page 9: Installation
Installation Siting Move the still evaporator to the operating location and install the evaporator so that it is level and plumb. Accessories All operating and convenience accessories purchased with the still should be installed after the still has been assem- bled on its mounting and before connecting the service lines to the still. - Page 10 NSTALLATION l l i t y t i n i l t t i i t s s l l Notes CW-1: Cooling water inlet connection 1, 2 and GPH stills (water supply pressure - 40 to 90 psi.) CW-2: Cooling water inlet connection on 10 GPH still Figure 3 (water supply pressure - 40 to 90 psi.
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Page 11: Electrical Connections
NSTALLATION Electrical Connections Connect the electrical heating service to the still as shown in Figure 14. The heating service terminal board is located inside the junction box at the base of the still. Customer must supply adequate on-off control for electrical heating service. Make the electrical connection to the terminal board in the low water cutoff control cabinet as shown in Figure 9 and in ac- cordance with the following instructions:... -
Page 12: Operation
The still is start- and gases escaping the vent should ed and stopped with the “ON/OFF” toggle switch. be 70°C or higher. To measure the vent temperature, use a thermocouple probe, such as the Thermo Scientific PM20700 Digital Pyrometer, inserted into the vent. -
Page 13: Deconcentrator Adjustment
PERATION Deconcentrator Adjustment The function of the deconcentrator is to maintain a mini- mum concentration of dissolved impurities in the evapora- tor, thus reducing scale formation and tendency to foam to a minimum. The deconcentrator is adjusted as follows: Permanent Hard Water or Softened Water (Softened feed is not recommended). -
Page 14: Normal Operation
70°C or higher. To measure the vent temperature, use a thermocouple Close the cooling water inlet valve. probe, such as the Thermo Scientific PM20700 Digital Pyrometer, inserted Open the drain valve and let the still drain com- into the vent. - Page 15 PERATION Note Valves shown in dotted lines must be installed by customer. Available as optional equipment. Condenser Vent Distillate Cooling Water Tube Throttling Valve Cooling Water Inlet Valve Deconcentrator Valve Electrical Terminal Connection Box Drain Valve Figure 4 Operating Controls...
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Page 16: Maintenance And Servicing
Maintenance and Servicing Note Cleaning Methods If desired, 10% solutions of sulfamic or acetic acids may be used instead Cleaning requirements fall into two classes, scale re- of the HCI. Sulfamic and acetic acids moval and biological cleaning. Scale removal may be have an advantage over hydrochloric accomplished chemically or mechanically. -
Page 17: Disassembly For Cleaning
AINTENANCE AND ERVICING biological contamination from the affected part. This may be accomplished as follows: Warning Immerse the part in an isopropyl alcohol or a Avoid splashing the isopropyl alcohol mild detergent (not containing bleach) solution solution on open cuts. overnight. - Page 18 AINTENANCE AND ERVICING Disassemble the drain line and clean as required. Ensure that the drain line is clear (including the drain opening in the evaporator) before using detergent or acid cleaners. Reassemble the drain line. Soft scale may be removed as described under “Soft Scale Removal.”...
- Page 19 AINTENANCE AND ERVICING spouts out of the condenser vent at least 12 inches. Operate in this manner for 30-60 min- utes to sterilize and clean out the still. 13. Adjust the still as described in “Initial Operation.”...
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Page 20: Theory Of Operation
Theory of Operation The still consists primarily of a boiler or evaporator which holds the water during the evaporation pro- cess; electric heating elements of the immersion type inserted in the evaporator to boil the water; and a condenser which condenses the steam from the boil- er to form the distillate. -
Page 21: Troubleshooting
Troubleshooting This section contains troubleshooting, testing and repair instructions. A troubleshooting chart is included to help the repair specialist find the difficulty quickly. Tests for Condenser Leaks Visual Test. A simple test for condenser leaks may be per- formed as follows: Shut off the still heating elements. -
Page 22: Condenser Test For Scale
ROUBLESHOOTING Condenser Test for Scale Note Test the cooling water side of the condenser for scale The condenser cannot be repaired as follows: and must be replaced as a unit. Adjust the cooling water throttling valve so that just a puff of steam issues from the condenser vent. -
Page 23: Heating Element Test And Replacement
ROUBLESHOOTING Heating Element Test and Replacement Whenever a heating element is suspected of not operating properly, test and if necessary, replace the heating element as follows: Warning To avoid electrical shock, this product Shut off the still. Close the water supply valves to must be disconnected from the power the still. - Page 24 ROUBLESHOOTING Install the bus bars and wiring between heater terminals. Retighten the heater retaining screws to eliminate the possibility of leakage. 10. Add water to the evaporator and ensure that none of the heating elements are leak- ing. 11. Reassemble the still and connect the elec- trical heating service to the heating ele- ment.
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Page 25: Heating Elements
ROUBLESHOOTING Heating Elements Listed below are the heating elements available. The heat- ing elements now have compression nuts. These are direct- ly interchangeable with the older threaded types. Heating elements are shipped complete as shown in Figure 6. Still Catalog No. Heater Heater Quantity... -
Page 26: Troubleshooting Chart
Troubleshooting Chart . l l i t i r i t s a l l n i l i l e e l i e l i t i r . l l i l l i t i t s e l l f i l B "... -
Page 27: Parts List
Parts List A1011 A1013 A1015 A1016 A1016X003 (1 GPH) (2 GPH) (5 GPH) (10 GPH) (10 GPH) i t s a l l v i l ) " ) " " 8 i t s a l l v i l i t s a l l n i l... - Page 28 ARTS Note For more details on heating ele- ments, refer to “Heating Element Replacement.” Note Junction box includes terminal Figure 7 block segments (04205 or 04150) and terminal block ends. (1-2 GPH) (5-10 GPH)
- Page 29 ARTS Index Description Catalog No. 1 GPH & 2 GPH 2 GPH 5 GPH 10 GPH 10 GPH Still Distillate Capacity & Figure 8 Still Heat Control Contactor...
- Page 30 ARTS Terminal Block Terminal Block Terminal Block 1 Gallon Still 2 and 5 Gallon Still 10 Gallon Still Catalog Single Phase Three Phase G.P.H. 120 V (2 wire) 120/240 V (3 wire) 240 V (2 wire) 480 V (2 wire) 120/208 V (4 wire) 240 V (3 wire) 380/220 V (4 wire)
- Page 32 ARTS Full Load Current At 120 VAC 120/240 VAC 120/208 VAC 240 VAC 480 VAC 1 Phase 1 Phase 3 Phase 3 Phase 3 Phase Float Feeder for Classic Stills Floorstand for Classic Stills Used for pretreated water conservation. The float The floorstands are crafted of sheet metal and are mechanism controls the flow of pretreated water to provided with adjustable levelers.
- Page 33 ARTS Automatic Feedwater Flow Automatic Controls Shutoff Valve for Classic Allows for completely unattended 24-hour operation when Stills still is attached to tank. Adjustable drain timer/cycler 2-, 4-, 8- or 16- hour drain allows reduced still cleaning frequency. For the conservation of water and automatic operation.
- Page 34 ARTS Puramatic Diverter for Wall Brackets for Classic Still Classic Stills The wall brackets are made of aluminum casting (G3275 is made of steel). Divert substandard distilled water to drain. All of the piping is constructed of inert pure tin. The automatic temperature compensated purity meter.
- Page 35 ARTS Cartridge Pretreatment Kit for Classic Stills The pretreatment kit removes scale-forming impurities from the feedwater to the still evaporator (boiler) while improving the distillate purity. Each pretreatment kit has a scale eliminator cartridge, Cat. No. D8921, containing ion-ex- change resin to remove scale-forming impurities and acti- vated carbon to remove chlorine and volatile organic impu- rities.
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Page 36: Accessories For Electric Stills
Accessories for Electric Stills Accessory Numbers for Electric Stills Accessory A1011 A1013 A1015 A1016 l l a y l l c i t c i t c i t Tin-Coated Vertical Cylindrical Storage Tanks Accessory A1011 A1013 A1015 A1016 o l l n i l l l a o l l... - Page 37 CCESSORIES FOR LECTRIC TILLS Tin-Coated Rectangular Storage Tanks Accessory A1011 A1013 A1015 A1016 o l l o l l Accessories to Accompany Tin-Coated Rectangular and Cylindrical Storage Tanks Accessory A1011 A1013 A1015 A1016 l o i...
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Page 38: Ordering Procedures
Ordering Procedures Please refer to the Specification Plate for the complete model number, serial number, and series number when requesting service, replacement parts or in any corre- spondence concerning this unit. All parts listed herein may be ordered from the Thermo Scientific dealer from whom you purchased this unit or can be obtained promptly from the factory. -
Page 40: Warranty
(ii) misuse (including use inconsistent with written operating instructions for the product), mishandling, contamination, overheating, modification or alteration of the product by any customer or third party or (iii) use of replacement parts that are obtained from a party who is not an authorized dealer of Thermo Scientific prod- ucts.
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