Lokal 400Operating Manual Page 10
6.3.3. Switch-off time [3]
Asthesystemisusuallyrunonbatterypower,itisreasonabletosavebatterycapacitywheneverpossible.
Therefore, the operator can set the time period when the device is switched off automatically unless in
use.Thisswitch-offtimerangesfrom1minuteupto60minutes. Thisfeaturesincreasesbatterylifeand
thustheoperating periodofthesystem.
Theconfigurationprocesscomplieswiththesettingprocessforthedateandthetimeofdayasdescribed
inChapter 6.3.1.
6.3.4. Lighting [4]
The brightness level for the display lighting can be adjusted individually on a scale ranging from
0% to 100%. The scale has two colored sections indicating the impact of the brightness level on the
energy consumption and thus on the battery’s operating period.
If the brightness level is chosen from within the green section, the operational period of the battery is
maximal.Theredsectionindicatesreducedoperatingtimeofthedevice.
The brightness can be changedby turning the right dial. The setting menu can be left either bypressing
thedial,orbypressingthe”Cancel“ key, or bytappingthedooricononthescreen.
6.3.5. Frequency range/Geophone [5]
Every acoustic leakage detection measurement mode offers two pre-selected filters (ground
microphone and testrod) and also a user-defined filter selection to be applied directly. These
settings can be determined in theFrequencyrangesetting menu.
High-pass filters (HP) and low-passfilter (TP) as well as the maximumrangeof the frequencyspectrum
can be adjusted. The maximum frequency range available for the geophone mode is 4,000Hz. The
configuration process complies with the setting process for the date and the timeof dayas described in
Chapter6.3.1.
6.3.6. Hearing protection [6]
The Lokal 400 leakage detection device features an automatic noise level absorber. This function
ensuresthattherequirementsforHearingProtection as perVBG121(VGB–GermanAssociation
of Institutions for Statutory Accident Insurance and Prevention) are fully met when operating the
original headphones (part of the delivery).Forindividualadjustmentofthenoiselevel,theLOKAL400
deviceoffersascalerangingfrom1(relativelylownoiselevel)to3(maximumnoiselevel),withanysetting
stillbeinginfullcompliancewithVGB121requirements.
Theconfigurationprocesscomplieswiththesettingprocessforthedateandthetimeofdayasdescribed
inChapter6.3.1.
6.3.7. Touch screen [7]
Withthis setting option, theoperator can de-activate thetouch screen, calibrate it,or runafunctionaltest
on the screen. Use the dial on the right to navigate to the requested selection field and confirm your
selectionby pressingthedial.
IfOn/Off hasbeen selected,thetouch screenfunctioncan be activatedandde-activated respectively by
pressing the dial. Please note that if the touch function has been de-activated any input can be made
throughthedialonly!
If the touch function of the LCD display does no longer work properly (e.g. a menu item can only be
selected by tapping beside the symbol), it may be necessarytocalibrate the touch function. If you need
todoso,pleasefollowtheinstructions as displayed andtaponthe spots as indicatedintheinstructions.
Afterthisreset,thetouchfunctionshouldworkproperlyagain.
