Difference between revisions of "Jimenez Lab Troubleshooting"
From Jimenez Group Wiki
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| − | + | =ToF-AMS= | |
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* If you have no signal | * If you have no signal | ||
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** If you have some ions | ** If you have some ions | ||
*** Check the single ion with bitwise, this tests whether the MCP could be damaged | *** Check the single ion with bitwise, this tests whether the MCP could be damaged | ||
| − | |||
=Gilibrator= | =Gilibrator= | ||
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=SMPS= | =SMPS= | ||
| − | + | ==Impactor== | |
* displayed sample flow > CPC flow | * displayed sample flow > CPC flow | ||
** Critical orifice in impactor is probably clogged | ** Critical orifice in impactor is probably clogged | ||
| Line 29: | Line 27: | ||
*** carefully wash the critical orifice that's just upstream of the impactor plate | *** carefully wash the critical orifice that's just upstream of the impactor plate | ||
*** dry throughly and reattach impactor | *** dry throughly and reattach impactor | ||
| + | ==3081 Column== | ||
| + | *Changing Dacron Filter | ||
| + | *Won't reach target voltage | ||
| + | **result of arcing in the top portion of the column | ||
| + | ***check connection of HV wire to brass head (spring connection point is a set screw that holds the head in place) | ||
| + | ***check HV wire insulation for any distress repair with heat shrink | ||
| + | ***check ground wire and make sure it is adequately seperated from the HV wire repair with heat shrink | ||
Latest revision as of 13:41, 18 May 2010
ToF-AMS
- If you have no signal
- Check all the connections
- Check whether you see the pulser pickup when plugging the signal into an oscilloscope
- If yes, the pulsers and preamplifier are working
- If not, it could be: (a) lack of power for the preamp; (b) damaged preamp; (c) damaged pulsers; (d) loose connection
- If you have some ions
- Check the single ion with bitwise, this tests whether the MCP could be damaged
Gilibrator
- Unit will not turn on
- remove flow cell
- open back cover
- unplug battery pack from main board
- plug in power supply
- If unit turns on battery pack is faulty, if unit does not turn on board is faulty.
- Ordering battery pack: Reis environmental 1.800.677.7347 p/n 700560
SMPS
Impactor
- displayed sample flow > CPC flow
- Critical orifice in impactor is probably clogged
- remove impactor from SMPS and disconnect flow meter tubes
- remove and clean impactor plate
- carefully wash the critical orifice that's just upstream of the impactor plate
- dry throughly and reattach impactor
- Critical orifice in impactor is probably clogged
3081 Column
- Changing Dacron Filter
- Won't reach target voltage
- result of arcing in the top portion of the column
- check connection of HV wire to brass head (spring connection point is a set screw that holds the head in place)
- check HV wire insulation for any distress repair with heat shrink
- check ground wire and make sure it is adequately seperated from the HV wire repair with heat shrink
- result of arcing in the top portion of the column
