Interscience COMPACTGC Instruction Manual Download

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COMPACT

Instruction manual

version 2.01 (January 2005)

Summary of Contents for COMPACTGC

Page 1: ...COMPACTGC Instruction manual version 2 01 January 2005...

Page 2: ...ght result from any use of this manual or the information contained therein even if this information is properly followed and problems still arise This publication is not part of the Agreement of Sale...

Page 3: ...nstallation complies with local law regulations the instrument is used according to the instructions provided and if its operation is only entrusted to qualified trained personnel The CompactGC should...

Page 4: ...ctors 11 4 Pre concentration Module PM 16 5 The CompactGC editor program 17 Command buttons 18 Tab pages 19 Pull down menu s 22 6 Operation 28 6 1 Column installation 28 6 2 Leak check 30 6 3 Quick st...

Page 5: ...inite safety hazard Contact your supplier for purged housings if the CompactGC needs to be applied in an EX classified zone Keep away from live circuits Analytical column and component replacement and...

Page 6: ...ogen the following recommendations must be observed 1 Ensure that all hydrogen cylinders are complying with the safety conditions provided for their proper use and storage they must be equipped with s...

Page 7: ...dard 19 rack For installation of the analytical column and for service the instrument is accessed by removing the top cover Ventilation Depending on the configuration and operation parameters sufficie...

Page 8: ...gth is 10 m EZChrom EZStart This RS 232 connection is used for the digital detector data in case of the EZChrom EZStart data system Maximum tested length is 10 m Wherever in this manual is spoken abou...

Page 9: ...ditor RS 232 connector D sub 9 pole Digital output D sub 15 pole Flash programming Split out 1 16 Swagelok Carrier gas in 1 16 Swagelok Detector gas in 1 16 Swagelok Detector out 1 16 Swagelok Actuato...

Page 10: ...times Typical analysis times are 10 seconds to 2 minutes The CompactGC editor a dedicated program for method programming sets all parameters The CompactGC is an up to 3 channel instrument with a choic...

Page 11: ...ice which can be operated in the following modes Constant pressure Programmed pressure Pressure pulse pressure surge Four different gasses can be used helium hydrogen nitrogen and argon In case of cha...

Page 12: ...alue 0 and cools down The GC needs a reboot mains power switch or warm reset from the CGC editor menu to return to normal operation DGM The second type of digital gas supply contains two pressure chan...

Page 13: ...efore the applied ovens are isothermal and highly stable The three ovens have independent temperature control so each column operates at its optimum temperature The standard supplied oven is used for...

Page 14: ...reased sensitivity This detector is a dual channel microvolume cell with two filaments on constant mean temperature See figure 3 4 Figure 3 4 TCD detector Operation principle The filaments are continu...

Page 15: ...re depending on required sensitivity Reference flow 1 2 ml min Polarity depending on carrier gas Range depending on required sensitivity FID Operation principle In gas analysis the FID is popular for...

Page 16: ...n of the formed water Hydrogen flow 30 ml min Air flow 300 ml min During ignition the hydrogen pressure is raised by 40 for easy start of the flame This is performed automatically when the ignition bu...

Page 17: ...diatomic helium to the dissociative ground state This is the well known Hopfield emission The photon energy from the diatomic helium continuum is in the range of 13 5 to 17 7 eV The PDD is essentiall...

Page 18: ...e calculated by subtracting the discharge flow from the total flow He cylinder customer gas supply reducer T piece fixed restrictor FPM capillary column vent PDD Figure 3 8 GC system with the PDD Afte...

Page 19: ...manual 16 4 Pre concentration Module PM For trace analysis of gases sample components can be pre concentrated using a Peltier cooled micro trap Contact your local supplier for more information about t...

Page 20: ...ditor can be closed and the PC can be disconnected from the PC since all values are stored in the permanent memory of the CompactGC and the programmed sequence is carried out independently of the Comp...

Page 21: ...when new entered method parameters have to be sent to the CompactGC Only the changed parameters are sent STATUS Besides the actual values displayed at the channel pages a status window can be opened t...

Page 22: ...This page is used for test and development purposes The external events in most cases valves can be controlled directly from here A mouse click on the wanted event followed by the SEND buttons activat...

Page 23: ...g the run Valve This command is used to activate the external events mostly valves Since up to 8 events can be connected also the valve number has to be entered Output bit The output bit command progr...

Page 24: ...of the run PC processor speed network connections etc Normally 5 10 seconds are appropriate Channel If an action can be applied to more than device temperature flow valves a channel number has to be...

Page 25: ...File Besides the functions of the above mentioned command buttons the CompactGC method can be printed from here View Status This line has the same function as the Show Status command button Log file...

Page 26: ...lable on this page T filament TCD This parameter sets the filament temperature of the TCD A high value in relation to the TCD block temperature means high sensitivity Input gain TCD Gain factor of the...

Page 27: ...ation detectors this parameter switches the polarization voltage on and off FID ignite FID After setting the correct detector gas values for hydrogen and air this button activates the ignition coil in...

Page 28: ...value This parameter is protected by a password After changing parameters use the command Send changes to GC to save the changes in the CompactGC Edit positions This option is password protected and...

Page 29: ...ATUS window IMPORTANT for safety reasons these parameters need to be set correctly Especially in case of low bleed columns there is a small 1 2 pA signal drop when the flame goes out so the FID action...

Page 30: ...This command enables the Flame Off detection manually The status of the Flame Off detection enabled disabled is listed in the STATUS window Restart CGC warm re boot This command allows a remote soft r...

Page 31: ...lied Figure 6 1 Injector valve side Injector valve side Install the knurled nut and the ferrule with appropriate internal diameter without the column Cut the column end to the correct length in such a...

Page 32: ...end to the correct length in such a way that no stress is present on the column after installation Guide the column into the nut Tighten the nut by hand valve nut nut Figure 6 2 Column installation D...

Page 33: ...ft nut In case of a leak hydrogen will enter the column oven For a total check of this channel the FID detector is disconnected and the flame jet is replaced by a blind jet turn off the hydrogen and a...

Page 34: ...lection set output bit 7 to 1 at 1 second and enter value 0 at 2 seconds The end of the run has to be programmed in the RRT figure 6 4 as well in the data system Since the CompactGC starts his run dir...

Page 35: ...CompactGC manual 32 Figure 6 4 run time table window In case the CompactGC was switched off the data system has to be closed and restarted for re establishing the digital communication with EZChrom...

Page 36: ...it line of the carrier gas normally need no replacement since their function is to protect the electronic split regulation by a gradually release of the vented components Ferrules Ferrules and seals s...

Page 37: ...llowing parameters need to be entered Interface configuration Tools interface configuration When the correct RS 232 connection is present the information shown at serial number confirms the communicat...

Page 38: ...n The interface connection window can be closed and the configuration window of the instrument needs to be opened Add modules according the CompactGC configuration Besides one to three detectors the e...

Page 39: ...dle channel and detector 3 to the CompactGC back channel Appropriate names can be entered here FID front TCD back etc For TCD the Y as Multiplier is set to 0 002500 for FID PDD PID 0 00100 has to be e...

Page 40: ...osed needs to be entered The Trigger should also be set to the used RS 232 port in other to start the EZChrom data acquisition by the CompactGC Instrument setup After finishing the configuration the i...

Page 41: ...CompactGC manual 38 Complete the setup by setting the external trigger as shown below...

Page 42: ...OC relais 2 D in bit 1 stop CompactGC L Tue TTL OC relais 3 D in bit 2 L Tue TTL OC relais 4 D in bit 3 L Tue TTL OC relais 5 D in bit 4 L Tue TTL OC relais 6 D in bit 5 L Tue TTL OC relais 7 D in bi...

Page 43: ...des a high stable high resolution 20 bits analog signal In order to preserve the quality as good as possible short cables are advised Beside the output signal two additional connections are important...

Page 44: ...Green and Red system LED s CompactGC front display functionality GREEN slow blinking short Off READY all active devices Green Blinking 1 Hz NOT READY RED off NO RUN RED continuous on RUN run time tab...

Page 45: ...awing Pull down menu s 22 Edit positions Pull down menu s 25 26 Editor program 17 Electrical connections 39 End of this run Run time table 21 Entry Run time table 19 Event configuration 37 EZChrom EZS...

Page 46: ...Send method Command button 18 Sequence Run time table 20 Setup Pull down menu s 24 Software 17 Space requirements 4 Start chromatogram Run time table 20 Start run Command buttons 19 STATUS Command but...

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