Operation
Z33081_00_001 45
ThemainoperationoftheBPHG90canbe(re)startedbyclickingtheStartbutton.This
actionwillstartthecryocoolerandcooldownoftheconversionchamber(seesectionStart
Function [}48]).
The Purge function is used to clear the working volume and all internal tubing of the
instrument from air or other contaminants (see section Purge Function [} 48]). It is
recommendedtoexecuteapurgeprocedurebeforestartingthecoolingoftheconversion
chamber. Once the conversion chamber is cold (i.e. below 280 K), a purge cannot be
performedandthecorrespondingbuttonisgreyedout.
Warm Up executes a fast, forced warmup of the conversion chamber with a dedicated
heater (see section Generator Shut‐down [} 53]). It is recommended that a warmup be
performedbeforethesystemispowereddown.
The BPHG 90 monitors the operating times of maintenance critical components and
checks them against their preset service intervals. If any of the service intervals are
exceededwhiletheBPHG90isinoperation,thenaMaintenanceWarningisissued(see
sectionOperating Information [}46]).Itisstillpossibletooperatethesystemafteranon
critical maintenance warning has been issued. After a critical maintenance error, the
instrumentshutsdown.
7.2 SystemSettings
The BPHG 90 operations are controlled by a number of parameters which are factory
preset. These parameters are accessible via the Settings function (see the next figure)
whichcanbecalledupbytappingtheSettingsbuttonatthebottomrighthandcornerof
mostoperatingscreens.ThemainSettingsaccesswindowhastwotabs:
• Usersettings.
• Servicesettings.
The Service (BRUKER) is intended only for trained service personnel and is password
protected.
Figure7.8:SystemSettingsandUserSettingsInterface
Theuserhasaccesstotwosettingsscreens:GeneralorPHG.
TheGeneralbuttonoffersgeneralsystemsetupfunctionsfore.g.touchscreencalibration
andsystemdateandtimesettings.
ThePHGbuttonpresentstheuseraccessibleoperatingparameters.Thisscreenhastwo
tabs:SettingsandOperatingInformation.