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Markes International Unity 2, Руководство по установке

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QUI-1056

Page 11

Markes International Ltd 

T:

 +44 (0)1443 230935   

F:

 +44 (0)1443 231531   

E:

 [email protected] 

 

www.markes.com 

3.

 

Installing UNITY 2 

3.1

 

Installing the Transfer Line 

UNITY 2 is supplied with a universal transfer line to convey desorbed analytes from UNITY 2 to a gas 
chromatograph or other analytical system. The sample path utilises a deactivated fused silica line 
(0.25mm I.D. and 0.35mm O.D.) heated over its entire length by means of a distributed heater and at the 
GC end by heat conduction from the GC oven. The heated transfer line is 1 m long, which is sufficient to 
reach most gas chromatographs even when a mass spectrometer is attached. 

NOTE

:  The parts supplied can be used in other combinations to suit particular instrument configurations. 

3.1.1

 

Installing the Transfer Line onto the GC 

There are two options for transfer line installation, one requires use of a hole in the top, side or back of the 
GC oven, while the other option is to gain access via an unused heated injector port. 

Option 1 – Through Hole in Oven Wall 

1.

 

Locate a hole in the inner oven wall with a corresponding hole leading to the outside of the 
instrument. 

2.

 

Where necessary, displace the oven insulation material such that the transfer line heater can be 
fitted directly against the external face of the oven wall. 

3.

 

Place one of the washers provided in the UNITY shipping kit on the external face of the oven wall, over 
the hole through which the transfer line will be passed. 

NOTE

:   A number of different washers are provided.  The washer required will be determined by the 

hole in the oven through which the transfer line will pass. 

4.

 

Fit the GC end of the UNITY transfer line through the hole in the washer and on through the hole in 
the GC oven wall. 

 

 

5.

 

Place a second washer over the UNITY transfer line so that it can be secured against the inside wall of 
the GC oven. 

Oven wall 

Oven wall 

Содержание Unity 2

Страница 1: ...QUI 1056 Version 2 0 February 2014 Markes International Ltd T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com Installation manual UNITY 2 ...

Страница 2: ...rt contact details 7 2 UNITY 2 Pre installation Check List 8 2 1 Minimum computer specification for UNITY 2 control 8 2 2 GC equipment requirements 8 2 2 1 Access into the GC oven 8 2 2 2 GC configuration parameter selection 8 2 3 Laboratory location 8 2 3 1 Space requirements 8 2 3 2 Quality of the laboratory air 9 2 3 3 Quality of the laboratory gas lines 9 2 4 Services 9 2 4 1 Power 9 2 4 2 Pre...

Страница 3: ... 3 2 Inserting Split Filter Tube 16 3 3 Installing the cold trap 18 3 4 Connections to UNITY 2 23 3 4 1 Gas connections 23 3 4 2 Electrical connections 23 4 Software 25 4 1 Installing the software 25 4 2 Running the software 25 4 3 Mass Flow Controllers 26 4 4 GC Interface Logic 26 5 Installation Checkout 28 5 1 Conditioning the Cold Trap 28 5 2 System checkout 28 ...

Страница 4: ...tended for use in domestic establishments or establishments directly connected to a low voltage power supply network that supplies buildings used for domestic purposes Where equipment is used in a field placement environment care must be taken to ensure that the instrument is not exposed to detrimental conditions i e rain wind or sun Exposure may diminish the performance cause damage to the instru...

Страница 5: ...nstrument or module may occur This damage may not be covered under standard warranties Injury may occur if proper lifting procedures are not followed symbol to alert the user that personal injury or instrument damage may occur if the instrument is improperly used or if instructions are not followed correctly This label indicates the instrument must not be disposed in regular waste but in WEEE sche...

Страница 6: ...of the hydrogen system is carried out in accordance with all applicable codes and standards Markes International will assume no liability for any damage or injury caused by the use of hydrogen For further advice on the use of hydrogen as a carrier gas please contact Markes International Technical Support 1 4 5 Cleaning and decontamination Please consult Markes International or your local agent for...

Страница 7: ...e or humidity allow 2 hours for return to the recommended ranges before switching on 1 6 Technical Specifications 1 6 1 Physical properties Height 40 cm 15 75 Width 16 cm 6 3 Length 51 cm 20 Mass 16 kg 35 2 lbs 1 6 2 Electrical properties Maximum Power 650 W Line voltage 100 240 V automatically selected Frequency 50 60 Hz Input inrush current A 40 A cold start 1 7 Technical support contact details...

Страница 8: ...ur GC oven It is important that the heated and insulated portion of the transfer line extends as far as the skin of the GC oven such that the GC oven heating begins at the point where heating of the transfer line ends A 25 mm diameter access hole is thus required into the GC with a 6 5 mm hole in the GC inner oven wall Further information is provided in Section 3 1 2 2 2 GC configuration parameter...

Страница 9: ...Y 2 requires a pressure regulated supply of dry air or nitrogen dewpoint lower than 50 C at between 50 and 60 psi both to actuate the main valve and to purge the cold trap box It is recommended that a secondary pressure regulator be used to control the supply of dry gas to UNITY 2 in addition to that controlling the general laboratory line pressure Any conventional pressure regulator should suffic...

Страница 10: ...ectronic Carrier Control ECC Please refer to the UNITY 2 ECC Installation Manual For optimum performance the carrier gas pressure to the ECC module should be regulated to approximately 10 to 15 psi above the column head pressure NOTE As ECC only controls the carrier gas suitable pneumatic control of the dry gas will still be required A U GAS01 from Markes International includes a carrier gas regul...

Страница 11: ...r line installation one requires use of a hole in the top side or back of the GC oven while the other option is to gain access via an unused heated injector port Option 1 Through Hole in Oven Wall 1 Locate a hole in the inner oven wall with a corresponding hole leading to the outside of the instrument 2 Where necessary displace the oven insulation material such that the transfer line heater can be...

Страница 12: ...Injector Port NOTE This option is only suitable if the inlet will not be required at any time 1 Remove components from the injector e g septum liner etc to enable the transfer line to pass through unobstructed 2 As the entry hole will generally be larger than the diameter of the metal line sleeve one or more of the large washers supplied will be needed Oven wall Oven wall Spacer Clamp Washer Washe...

Страница 13: ... 8 inch aluminium tube of the heated transfer line until it protrudes from the other UNITY 2 end of the transfer line Trim the PTFE sleeve to ensure enough fused silica is exposed Connect the fused silica transfer line to the GC column with a quick seal column connector C QSC10 or alternative connector 3 1 3 Connecting the Transfer Line to UNITY 2 Place UNITY 2 on the bench on the most convenient ...

Страница 14: ... mark 20 mm from the end of the fused silica using typing white marker enquiries markes com FV001 ferrule onto the union then thread the 1 16 on loosely Insert fused silica transfer into UNITY Pull 20 cm of fused silica from the PTFE line casing Cut off the first few mm of fused silica using an Make a mark 20 mm from the end of the fused silica using typing white out fluid or an alternative QUI 10...

Страница 15: ...8 mm wrenches spanners provided in the shipping kit CAUTION Do not over tighten or the ferrule will become distorted 5 Secure Transfer Line Assembly to UNITY 2 a Carefully bring the clamp plate PTFE plate and shield tube down into the position with the shield tube covering the union nut b The shield tube should be positioned such that the 1 16th side tubing projects though one of the cutouts c Pus...

Страница 16: ... F 44 0 1443 231531 E enquiries markes com www markes com 6 Plug the 2 connectors highlighted into their respective sockets 3 2 Inserting Split Filter Tube 1 Check the tube receivers to ensure the white PTFE frits are present in both sample and split tube sides ...

Страница 17: ... then replace them with spares which can be found in the shipping kit 3 Insert the split filter tube ensuring that the heated valve assembly does not move If it does move check the tube alignment 4 Replace the heated valve surround and secure with the 2 screws removed in the first step NOTE Ensure no wires are trapped under the cover edges ...

Страница 18: ...935 F 44 0 1443 231531 E enquiries markes com www markes com 5 Replace the rear top cover 3 3 Installing the cold trap Ensure the power to UNITY 2 is switched OFF 1 Remove the front top cover from UNITY 2 a Pull the cover forward b Lift up the cover to remove ...

Страница 19: ... the screw at the bottom of the Trap Pneumatics Assembly NOTE It is not necessary to remove the screw completely 3 Gently pull the Trap Pneumatics Assembly towards the front of the instrument taking care to keep it in the horizontal plane 4 Once clear of the screw lift the Trap Pneumatics Assembly clear and rotate to the left ...

Страница 20: ... into the cold trap box The tool should pass smoothly up to the o ring in the heated valve before further gentle pressure moves the tool another 2 3 mm NOTE If the tool does not move smoothly past the point where it enters the brass connector there may be a misalignment problem that must be corrected before continuing with this procedure 1 2 mm 2 1 ...

Страница 21: ...p gently push the trap tube into the cold trap box DO NOT APPLY EXCESSIVE FORCE TO THE QUARTZ COLD TRAP TUBE 8 As the cold trap contacts the o ring seal at the heated valve end there will be an increased resistance to movement The trap must be pushed in a further 2 3mm to ensure it is correctly seated in this o ring NOTE Once the trap is properly inserted the glass collar should be approximately 1...

Страница 22: ...rap and stainless steel connector MISALIGNMENT CAN CAUSE THE END OF THE QUARTZ TRAP TO SNAP c Apply gentle steady pressure to push the trap into the sealing O ring located inside the steel trap connector If the pneumatics assembly does slide easily onto the cold trap remove trap pneumatics and check seating of the o ring d Secure the Trap Pneumatics Assembly in place taking care to hold the assemb...

Страница 23: ...2 for full details 2 Connect the Purge gas to UNITY 2 The pressure must be set to between 50 and 60 psig NOTE The dewpoint of this purge gas must be lower than 50 C 3 Once carrier gas is supplied check the connection s on the back panel and the transfer line for leaks using an electronic helium leak detector 3 4 2 Electrical connections 1 Connect the power cable SERZ 0024 2 Connect the UNITY 2 to ...

Страница 24: ...td T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com Pressure Outlet Purge Pneumatic Gas Carrier Gas Inlet Power Lead Connection Power Switch GC Cable Connection PC Connection Gas Connections Electrical Connections ...

Страница 25: ...Windows 7 A shortcut to the Maverick exe file located within this folder should be placed on the desktop for ease of access 4 2 Running the software Ensure that the gas supplies to the system especially the dry air or nitrogen purge gas used for UNITY 2 valve actuation and purging the cold trap box are on Having checked the above switch UNITY 2 on using the switch located on the back panel of UNIT...

Страница 26: ...re for the changes to take effect 4 3 Mass Flow Controllers Once the software has detected the UNITY 2 the User Interface will be loaded A scan of the instrument hardware will be performed to determine whether any Mass Flow Controllers MFCs are installed If any MFCs are detected they will need to be configured correctly Please refer to the series 2 MFC installation manual QUI 1084 for further deta...

Страница 27: ... T 44 0 1443 230935 F 44 0 1443 231531 E enquiries markes com www markes com Check the correct operation of the GC ready signal If the signal appears inverted i e software reports GC not ready when GC is ready then change the GC Ready In logic ...

Страница 28: ...n Ensure the Trap High Temperature is compatible with the temperatures given in the Trap Certificate Click Heat Trap icon and answer Yes to Heat Trap with the Controlling Method Parameters 5 2 System checkout With Split On in Standby selected ensure air water background of MS is within operational limits Create a new method using parameters set out in documentation supplied with check standard QQR...

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