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Flexcell Cell Kit

Operator’s Manual

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Содержание FlexCell

Страница 1: ...Flexcell Cell Kit Operator s Manual...

Страница 2: ...obligation to install same on systems previously purchased All product specifications are subject to change without notice There are no warranties which extend beyond the description herein This warr...

Страница 3: ...Flexcell Kit Operator s Manual Copyright 1997 2017 Gamry Instruments Inc Part No 990 00121 Revision 4 11 November 30 2017...

Страница 4: ...or accessories that you need Disclaimer The information in this manual has been carefully checked and is believed to be accurate as of the time of printing However Gamry Instruments Inc assumes no re...

Страница 5: ...3 7 Attach the Glass Dome to the Cell 3 7 Complete the Reference Well Assembly 3 8 Test the Partially Assembled Cell for Leaks 3 9 Install the Drip Tube 3 9 Test for Leaks 3 10 Chapter 4 Routine Use o...

Страница 6: ...eratures 4 8 Usage at Low Temperatures 4 8 Temperature Gradients within the Cell 4 8 Electrolyte Deaeration 4 9 Electrode Area 4 9 Chapter 5 Accessory Equipment 5 1 Critical Pitting Test Systems 5 1 H...

Страница 7: ...rolyte Unlike other cells the active area of the test specimen is not bounded by a plastic barrier or O ring De ionized water is slowly forced through a fiber washer placed on the test solution side o...

Страница 8: ...Checking for Shipping Damage 1 2...

Страница 9: ...The specimen must be flat and sufficiently smooth so that an O ring can make a leak free seal to the metal The minimum specimen size is a square 4 cm on a side Smaller specimens will not seal on the O...

Страница 10: ...Chapter 2 Metal Specimens Checking for Shipping Damage 2 2...

Страница 11: ...s of shipping damage Be especially careful if the shipping container shows signs of rough handling Obviously the glass pieces are the most susceptible to damage Check the glass pieces for chipping and...

Страница 12: ...Ac e Bus hi ng Tef l on P N 935 00020 O Ri ng s uppl i ed wi t h Bus hi ngs Bot t om Cap Fl us hed Por t P N 820 00020 O Ri ng s uppl i ed wi t h Bus hi ngs 7 Ac e Bus hi ng Tef l on P N 935 00020 Sm...

Страница 13: ...Shipping Damage 3 3 Figure 3 2 Flexcell Reference Well Assembly R eference C apillary Tube P N 930 00024 R eference W ell P N 930 00017 R eference W ell B and S trap P N 935 00038 B all Joint C lamp S...

Страница 14: ...plex part that needs to be equipped with a number of additional parts and fittings prior to its use 1 Attach legs a Lay the bottom cap P N 820 00020 on a table with the face containing the conical dep...

Страница 15: ...es one of the legs with a wingnut A glance at Figures 3 1 may be helpful e Hold the sample support in one hand Turn the thumbscrew with your other hand poking the end of the thumbscrew into the depres...

Страница 16: ...tom cap e Tighten the 7 ACE Thred fitting finger tight You will be able to move the probe in and out within the fitting However the O ring seal should remain watertight as you do so 2 Install the Refe...

Страница 17: ...tall the Cooling Coil If you need to make measurements at temperatures below ambient you must install the cooling coil Install the cooling coil in the glass dome P N 930 00016 that makes up the top of...

Страница 18: ...me is under the clamp b Rotate the threaded screw so that the cylindrical adjustment nut engages the hooks on the other side of the gap in the clamp c Gently lock the clamp by pushing the locking leve...

Страница 19: ...ary tube e Place the reference well in a remotely located ringstand or other support Test the Partially Assembled Cell for Leaks The final step in initial assembly of the cell is a leak test Install t...

Страница 20: ...do not need a filter paper washer 1 Loop the drip tube over the top of the cell This tube fills with water to the same level as the water in the cell 2 Fill the cell with water pouring the water into...

Страница 21: ...ent distribution You can also use a noble metal wire counter electrode Bend one end of the wire into a hook and hang it over the lip of one of the ports If you desire a diffusion barrier to slow count...

Страница 22: ...thumbscrew and rotating the sample holder crossbar away from its mounting position then lifting the sample away from the bottom cap 4 Check the condition of the filter paper gasket If it is undamaged...

Страница 23: ...cell The higher the bag the less variation in flow rate as the experiment proceeds 5 Open the control valve fully After all the air has been cleared from the tubing except in the drop counter itself c...

Страница 24: ...jacket install it on the cell after the cell is filled with electrolyte The following description applies for both the 120 VAC and 240 VAC versions of the jacket The heating jacket wraps around the c...

Страница 25: ...ral 24 40 standard taper port in the glass dome 5 Carefully push the paddle against the bottom of the cell to rotate the paddle to a position perpendicular to the stirring rod 6 Loosen the nut on the...

Страница 26: ...nts a metal enclosure completely surrounding your cell may further reduce noise In this case connect this shield known as a Faraday shield to both ground leads short and long black leads in the cell c...

Страница 27: ...lly explosive results The vent on the gas bubbler is a suitable escape path if blanketing gas is not used If blanketing gas is used you must provide an alternate vent The cooling coil allows heating o...

Страница 28: ...ients within the Cell Stirring greatly reduces the magnitude of temperature gradients We recommend stirring whenever temperature control to better than 5 C accuracy is desired and whenever the tempera...

Страница 29: ...number of factors including gas flow rate temperature stirring rate and solution composition Allow at least 15 minutes for complete deaeration even under optimal conditions Some workers do not like g...

Страница 30: ...Chapter 4 Routine Use of the Flexcell Electrode Area 4 10...

Страница 31: ...longer being sold The controller integrated into Thermo Scientific recirculating baths RTE series with RS 232 I O and remote temperature sensing A cell can be cooled with tap water flow or a recircul...

Страница 32: ...other end of the cord 2 Disassemble the IEC male connector P N 720 00040 that was provided with the heating jacket You need to remove three screws 3 Slide the rubber hood onto the cut end of the cord...

Страница 33: ...ome very hot Stirrer P N 990 00117 is a stirring rod kit It can be used with a variety of stirring motors The stirring rod kit includes A precision 10 mm glass stirring rod P N 930 00020 A stirring pa...

Страница 34: ...option at extra cost This kit includes a stirring motor and controller a flexible coupling to connect to the stirring rod and a heavy duty ring stand The motor and controller in this kit operate from...

Страница 35: ...le in the reference electrode or the Luggin capillary Two or more of the cell leads are shorted together Noisy cell current or open circuit potential Your deoxygenation gas is still bubbling through t...

Страница 36: ...Chapter 6 Troubleshooting Poor experimental reproducibility 6 2...

Страница 37: ...4 0 cm Maximum Size 7 5 cm any length or 11 0 cm 11 0 cm rectangular 11 0 cm diameter circular Temperature Range Operating 25 C to 140 C Storage 40 C to 180 C not assembled Chemical Compatibility Wet...

Страница 38: ...Appendix A Specifications Volume 7 2...

Страница 39: ...r 4 6 duty cycle modulation 5 1 electric heating jacket 4 7 electrical contact 2 1 electrode area 4 9 electrode connections 4 6 emptying the cell 4 4 escape path 4 9 Faraday shield 4 6 fiber washer 1...

Страница 40: ...9 ring stand 5 4 RTD probe 3 6 rubber band strap 3 8 rubber foot 3 4 Sample Holder 3 5 sample support 3 5 SCE 4 2 shield 4 6 shipping damage 3 1 solenoid valve 4 8 stirrer 4 5 stirring 4 8 stirring m...

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