REVOLVING TABLE TYPE RT/HS-DGA – 20 V II USER`S MANUAL
Contents
1. HS DGA REVOLVING TABLE Rev 2 SEA MARCONI USER S MANUAL Data 04 04 05 HSDGA 20V II Pag 1 di 7 REVOLVING TABLE TYPE RT HS DGA 20 V II USER S MANUAL Contents System descripto Set up of the Syste M n COPYRIGHT amp PATENTS TUTTI I DIRITTI SONO RISERVATI DI PROPRIETA DELLA SEA MARCONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE HS DGA REVOLVING TABLE Rev 2 SEA MARCONI PROCEDURE DI UTILIZZO Data 04 04 05 HSDGA 20V 2 di 7 Generals The Revolving Table system Type RT HSDG 20V II has been developed to optimize the sample preparation step of insulating liquids for DGA Dissolvd Gas Analysis with Head Space technique Main features of the system are sample handling and dosing under inert gas flow and controlled atmosphere interferences from air gases O2 N gt CO2 dramatically reduced 1 2 3 20 sample prepared per one man hour even by non skilled personnel 4 suitability for insulating mineral oils synthethic insulating liquids askarels silicones 5 enhanced samples storage delay 2 weeks from sample preparation to sample analysis 6 high repeatability even with different2. HS DGA REVOLVING TABLE are 48 SEA MARCONI PROCEDURE DI UTILIZZO Data 04 04 05 RT HSDGA 20V II Pag 4 di 7 weighted at the nearest 0 01 g for the subsequent identification of the quantity of sample injected 3 Close the Revolving Table installing the cover checking that the marks on the cover and on the base coincide then tighten the securing knobs 4 Start the inert gas Argon flushing to remove all the air into the system open the high flow flowmeter at a flow rate 40 to 60 the inert gas enter the table from the bottom positioned hole Flow for 10 minutes 5 Turn the wheel handle on the cover positioning Vial n 1 under the vial flushing station under the inert gas inlet pipe 6 Close the high flow flowmeter and start vial rinsing open the low flow flowmeter at a rate 2 to 4 ml min The inert gas enter the table from the cover Flow for 2 3 minutes 7 Filling the vials a Turn the wheel handle on the cover positioning Vial n 1 under the sample inject point see figure b Inject the sample into the vial about 15 ml using a stainless steel needle 8 Positioning the plug on the vial a Turn the wheel handle on the cover positioning Vial n 1 under the Vial plug positioning station b Using the black slide press move toward the vial press to full stroke position the plug on the vial 9 Sealing the vial a Turn the wheel handle the cover posi
3. di 7 24 The system operates in a controlled ambient for ensuring a good repeatability of sample preparation with sample labelling and a controlled flow of the inert gas 3 Set up of the system Before using it the system must be prepared in the following manner see figures below 1 place the equipment on a firm workbench under a fume evacuation hood 2 connect the inert gas delivery hose to the connection located on the front panel Gas inlet point hi 4 Use The sequence of operations for sample preparation involves four main steps performed on the stations of the Revolving Table a Station for vial flushing b Station for sample injection c Station for caps positioning d Station for vial sealing plug crimping The movements of the drum during the various sequential phases are done by actuating the turning handle positioning the vials in the different workstations Operation sequence 1 Chech if the Set Up of the system see 8 3 has been dome correctly 2 Open the Revolving Table by removing the 6 upper knobs and insert in the drum 20 numbered vials with their assigned plug The vials and the plug must be previously COPYRIGHT amp PATENTS TUTTI I DIRITTI SONO RISERVATI E DI PROPRIETA DELLA SEA MARCONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE
4. CONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE
5. analysts 7 small size easily handled Tachnical and manufacturing general specifications 1 Material transparent plexigass delrin stainless steel AISI 304 2 Size 350mm h 240mm 3 Weight 8 Kg System description The Revolving Table is essentially composed by a turning drum of a revolving type equipped with 20 seats for 20 ml headspace vials combined with the relevant airtight sealing plugs List of components see enclosed drawing 1 Canister 2 Cover 3 Sealing knobs 4 Turning handle 5 High flow flowmeter 6 low flow flowmeter 7 Sample injection point 8 Horizontal slide for seal positioning 9 Vertica slide for vial lifting 10 Plug clamping position The revolver can turn inside the transparent canister so that all the manual manoeuvres required are performed dosing of the sample positioning of the sealing plug and sealing of the vial for the filling in an Argon gas inert atmosphere or any other gas inert to TCD and FID gascromatographer monitors characterised by a low solubility in oil COPYRIGHT amp PATENTS TUTTI I DIRITTI SONO RISERVATI DI PROPRIETA DELLA SEA MARCONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE HS DGA REVOLVING TABLE Rev 2 SEA MARCONI PROCEDURE DI UTILIZZO Data 04 04 05 HSDGA 20V II Pag 3
6. nt the bias values obtained are greater increase the flow rate of inert gas in the equipment and increase the vial flushing time item 6 Precauzioni di utilizzo During the operations described here above the system is involved with potentially dangerous chemicals Always comply with the current safety rules and regulations in particular COPYRIGHT amp PATENTS TUTTI I DIRITTI SONO RISERVATI DI PROPRIETA DELLA SEA MARCONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE 9 SEA MARCONI HS DGA REVOLVING TABLE PROCEDURE DI UTILIZZO HSDGA 20V a Always wear laboratory gloves b Wear protective glasses during sample injection COPYRIGHT amp PATENTS Rev 2 Data 04 04 05 Pag 6 di 7 TUTTI I DIRITTI SONO RISERVATI DI PROPRIETA DELLA SEA MARCONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE HS DGA REVOLVING TABLE Rev 2 18 SEA MARCONI PROCEDURE DI UTILIZZO Data 04 04 05 HSDGA 20V II Pag 7 di 7 7 Enclosure Enclosure 1 Revolving Table 20 COPYRIGHT amp PATENTS TUTTI I DIRITTI SONO RISERVATI DI PROPRIETA DELLA SEA MAR
7. tioning Vial n 1 under the sealing cap tightening point station b Lift the vial using the outer knob COPYRIGHT amp PATENTS TUTTI I DIRITTI SONO RISERVATI DI PROPRIETA DELLA SEA MARCONI A SEGUITO ANCHE ABBREVIATA SM E VIETATA LA RIPRODUZIONE TOTALE O PARZIALE DEL PRESENTE DOCUMENTO SENZA L AUTORIZZAZIONE SCRITTA DI SM LE VIOLAZIONI SONO PERSEGUITE IN TERMINI DI LEGGE HS DGA REVOLVING TABLE are SEA MARCONI PROCEDURE DI UTILIZZO Data 04 04 05 RT HSDGA 20V II Pag 5 di 7 c Seal the vial using the crimper The vial is sealed and ready for the chromatographic analysis 10 Repeat steps 8 10 for all the sample to be analysed 11 At the end of the operation shut off the flow of inert gas open the equipment loosening the cover knobs and remove the numbered vials ready for the analysis 12 The vials filled with oil can now be weighted By deducting the weight of the empty vial and the relevant plug the weight and the volume once the density is known of the oil to be analysed is defined Notes It is recommended to include in the sequence of the 20 sample an empty vial without sample oil to be analysed by gas chromatography to check traces of atmospheric gases eventually present in the equipment The values obtained can be deducted as bias from the instrumental analytical results Typical bias values are 500 ppm 1500 ppm CO 50 ppm In the eve
Download Pdf Manuals
Related Search