GC-2014 FTD Jet

Detector FTD-2014

Maintenance works must only be undertaken after the temperature of each part has been lowered to less than 50 deg.C.
Place any detached items on a clean sheet or tray. Do not lose or contaminate these items.
Undertake the works using the appropriate tools. Any dirt on the tools being used must be wiped off in advance using gauze etc. dipped in acetone.

Phillips screwdriver, tweezers, Hexnut screwdriver (option, Part No. 670-18800)

1	Shutdown the system and stop the gas supply for detectors.
2		Loosen the FTD electrode holding screws and remove the holding plate.
3		Detach the FTD electrode.
4		Loosen the high voltage unit fixing nut.
5		Pull the high voltage brush out.
6		Loosen the FID jet using a hexnut screwdriver. Hexnut screwdriver (option, Part No. 670-18800)
7		Detach the FID jet using tweezers. Do not jolt the jet as this may break the quartz.
8		Check for any dirt or blockages in the jet. If dirty, wipe the dirt away using a cotton bud soaked in solvent. Replace it with a new item if it is blocked. FID jet (0.5 dia.): 221-70162-95 (standard, for packed column, marked 'P' on the side) FID jet (0.3 dia.): 221-70162-93 (for capillary column)
9	Fit the FID jet and use a hexnut screwdriver to turn it until it comes to a firm stop.
10	Put back the high voltage unit and the FTD electrode by following the removal procedure in reverse.
11	Start up the system.