Glove Box
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(Difference between revisions)
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'''Please read these instructions before using the Glove Box, and log every operation in the [[Glove Box history]]''' | '''Please read these instructions before using the Glove Box, and log every operation in the [[Glove Box history]]''' | ||
| + | |||
| + | '''All users require training from a trained user (Feri, Fábián Gábor, Szirmai Péter). Use is allowed only if the trainer approves to that. Any violation results in being banned from use.''' | ||
[[File:Cow_small.jpg|right]] | [[File:Cow_small.jpg|right]] | ||
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===Checking before the work, also check daily when box is unused=== | ===Checking before the work, also check daily when box is unused=== | ||
| - | * Circulator and water cooling is running. Never press Regeneration button on the panel. | + | * Circulator and water cooling is running. Never press Regeneration button on the panel. |
| - | * Box pressure is 3-8 mbar, O<sub>2</sub>, H<sub>2</sub>O levels are below 0.1 ppm. If not, do not work!!! Report to Feri, 30-452-4705 | + | * Box pressure is 3-8 mbar, O<sub>2</sub>, H<sub>2</sub>O levels are below 0.1 ppm. If any of above is not like that, do not work!!! '''Report to Feri, 30-452-4705''' |
* Check pressure in Ar bottle-station. If below 10 bar, change bottle. PURGE!!! | * Check pressure in Ar bottle-station. If below 10 bar, change bottle. PURGE!!! | ||
| - | * Turn on the vacuum pump before use, wait until end vacuum goes to below | + | * Turn on the vacuum pump before use, wait until end vacuum goes to below < 0.1 mbar (indicator is on the Leybold station). The vacuum pump should not run when the box is not in use. Switch on/off with a separate switch on the floor near the pump. |
===Working=== | ===Working=== | ||
| - | * check if inner door of both antechambers are closed | + | * check if inner door of both antechambers are closed |
* fill up the used chamber from box (keep a slight 50-100 mbar pressure under the box, this prevents that residual air in the otherwise evacuated antechamber goes into the box) | * fill up the used chamber from box (keep a slight 50-100 mbar pressure under the box, this prevents that residual air in the otherwise evacuated antechamber goes into the box) | ||
| - | * open chamber door. NEVER TOUCH the inside with pure hands, use gloves. | + | * open chamber door. NEVER TOUCH the inside with pure hands, use gloves. |
| - | * place sample close to inner end. Never put in solvents | + | * place sample close to inner end. Never put in any solvents. Samples in containers should be a bit opened! |
| - | * | + | * BBe careful with the black valve handle, experience shows that if not gently handled it will leak! |
| - | * Evacuate to | + | * Evacuate to cc. 0.1 mbar (2 min. for small, 10 min for large chamber). Refill/repump twice to 500 mbar (max to 950 mbar, this prevents that residual air in the otherwise evacuated antechamber goes into the box). (Total: 6 min for small, 30 min for large chamber). |
| - | * Use gloves with talc. Use a shirt with a LONG SLEEVE. Use talc on naked arms. Remove rings, watches, bracelets, piercings etc. | + | * Use gloves with talc. Use a shirt with a LONG SLEEVE. Use talc on naked arms. Remove rings, watches, bracelets, piercings etc. |
| - | * Go inside slowly so that box | + | * Go inside slowly so that box can react the pressure change. Same for coming out. |
===Leave box after work: === | ===Leave box after work: === | ||
| - | * Always close inner doors. Careful, only the handle part of the small chamber door should be touched. Glove can be hurt!!! | + | * Always close inner doors. Careful, only the handle part of the small chamber door should be touched. Glove can be hurt!!! |
| - | * Switch off light | + | * Switch off light |
| - | * Both Chambers are closed from in-outside | + | * Both Chambers are closed from in-outside |
* Chambers are pumped out to vacuum (< 0.1 mbar) and closed from pump, i.e. both chamber valves are in the close position. | * Chambers are pumped out to vacuum (< 0.1 mbar) and closed from pump, i.e. both chamber valves are in the close position. | ||
| - | * Check O<sub>2</sub>, H<sub>2</sub>O levels. If not below 0.5 ppm, note the time it takes to go down. | + | * Check O<sub>2</sub>, H<sub>2</sub>O levels. If not below 0.5 ppm, note the time it takes to go down. '''Report to a trained user!''' |
* Switch off the vacuum pump if you do not use it for a day at least. | * Switch off the vacuum pump if you do not use it for a day at least. | ||
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==Regular service:== | ==Regular service:== | ||
| - | *H<sub>2</sub>O sensor clean: | + | *H<sub>2</sub>O sensor clean: 2-3 months |
| - | *Gloves: | + | *Gloves: every second year or when worn out. Small leaks around mounting ring. Change glove O-rings as well. |
| - | *Particle filters: | + | *Particle filters: once per year |
| - | *Small-large antechamber | + | *Small-large antechamber O-rings: when looks worn out (after cc. 3 years) |
Revision as of 12:16, 31 August 2011
Please read these instructions before using the Glove Box, and log every operation in the Glove Box history
All users require training from a trained user (Feri, Fábián Gábor, Szirmai Péter). Use is allowed only if the trainer approves to that. Any violation results in being banned from use.
Contents |
Normal operation
Checking before the work, also check daily when box is unused
- Circulator and water cooling is running. Never press Regeneration button on the panel.
- Box pressure is 3-8 mbar, O2, H2O levels are below 0.1 ppm. If any of above is not like that, do not work!!! Report to Feri, 30-452-4705
- Check pressure in Ar bottle-station. If below 10 bar, change bottle. PURGE!!!
- Turn on the vacuum pump before use, wait until end vacuum goes to below < 0.1 mbar (indicator is on the Leybold station). The vacuum pump should not run when the box is not in use. Switch on/off with a separate switch on the floor near the pump.
Working
- check if inner door of both antechambers are closed
- fill up the used chamber from box (keep a slight 50-100 mbar pressure under the box, this prevents that residual air in the otherwise evacuated antechamber goes into the box)
- open chamber door. NEVER TOUCH the inside with pure hands, use gloves.
- place sample close to inner end. Never put in any solvents. Samples in containers should be a bit opened!
- BBe careful with the black valve handle, experience shows that if not gently handled it will leak!
- Evacuate to cc. 0.1 mbar (2 min. for small, 10 min for large chamber). Refill/repump twice to 500 mbar (max to 950 mbar, this prevents that residual air in the otherwise evacuated antechamber goes into the box). (Total: 6 min for small, 30 min for large chamber).
- Use gloves with talc. Use a shirt with a LONG SLEEVE. Use talc on naked arms. Remove rings, watches, bracelets, piercings etc.
- Go inside slowly so that box can react the pressure change. Same for coming out.
Leave box after work:
- Always close inner doors. Careful, only the handle part of the small chamber door should be touched. Glove can be hurt!!!
- Switch off light
- Both Chambers are closed from in-outside
- Chambers are pumped out to vacuum (< 0.1 mbar) and closed from pump, i.e. both chamber valves are in the close position.
- Check O2, H2O levels. If not below 0.5 ppm, note the time it takes to go down. Report to a trained user!
- Switch off the vacuum pump if you do not use it for a day at least.
Regeneration (if O2 or H2O level does not go below 0.1 ppm after 1 day without use)
- Secure all important samples into chambers, pump the chambers out, close.
- Switch off Circulator
- set 0.3 bar on Ar-H2
- turn on Regeneration, process cannot be stopped!
- 1/2 bottle (100 bar) of Ar-H2 per regeneration is needed
- Status can be monitored by clicking on the absorbent and checking "Status"
Regular service:
- H2O sensor clean: 2-3 months
- Gloves: every second year or when worn out. Small leaks around mounting ring. Change glove O-rings as well.
- Particle filters: once per year
- Small-large antechamber O-rings: when looks worn out (after cc. 3 years)
