Thermo Scientific ARL EQUINOX 5000, Инструкция пользователя

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Chapter | Maintenance and Cleaning
Confidential, limited rights
PN AA83865 | Revision A | 25-Oct-2019
Instruction Notice, ARL EQUINOX 5000-5500
Page 45
1.
Power down the instrument and unplug the power supply cord from the power supply.
See Section Operation on page
38 for more information.
2.
Close the isolating gas valve (8).
3.
Remove the front bottom left cover of the instrument to have access to the cylinder.
4.
Close the gas cylinder and the gas regulator.
5.
Unplug the inlet fitting from the receptacle “Inside Gas Bottle” (2).
6.
Open the gas regulator in order to purge it to avoid pressure inside before dismounting it.
It must be closed again after this purge.
7.
Remove the cylinder from the grips.
8.
Dismount the regulator from the old cylinder and remount it on the new cylinder.
9.
Install the new cylinder in place of the old one.
10.
Open the gas cylinder and open slightly the gas regulator in order to have a low gas flow.
Connect the inlet fitting to the input receptacle “Inside Gas Bottle” (2) and adjust the outlet
gas pressure on the regulator to the recommended value (6 bar).
11.
If the gas pressure is set too high, use the output connector of the CPS detector. To
decrease the pressure, close the gas regulator and insert a male quick fitting in the CPS
output connector (consisting in a female quick fitting receptacle) for a fe w seconds.
Increase again the pressure by opening slowly the gas regulator.
12.
Remount the front bottom left cover of the ARL EQUINOX 5000/5500.
13.
Start up the ARL EQUINOX 5000/5500 (see Operation on page 38 ).
14.
Check the non-contamination by air, by performing a noise background recording. After
powering the detector, run an acquisition without X-ray, to measure it. If spikes appear
after few 15 minutes, then air pollution would be the cause. Proceed to the flushing (high
voltage should be off).
15.
If necessary, proceed to the calibration with the software.