2SL400‐en‐GB_V1.111/16
Introduction
Thank you for ModelselectingtheExtechInstruments SL400.Thisdeviceisshippedfullytested
andcalibratedand,withproperuse,will service.provideyearsofreliable Pleasevisitourwebsite
(www.extech.com)tocheckforthe versionlatest ofthisUserGuide,ProductUpdates,Software,
andCustomerSupport.
Safety
CAUTION: Avoid taking measurementsinhumidorwetenvironments.
WARNING: Ensure that the ambient humidity conditions are within those specified and referenced
intheEnvironmentalConditions section.
WARNING: Avoid taking measurementsinthepresenceof:
Explosive gases
Combustiblegases
Steam
Excessivedust
CAUTION:Do not operate the instrument in ambient temperature and humidity conditions beyond
thoserecommendedandreferencedinthe EnvironmentalConditions section.
ATTENTION:Keep the microphone dry and avoid severe vibration.
ATTENTION:Wind blowing across the microphone can add extraneous noise. If the instrument is
usedinwindyconditions,usethesuppliedmicrophonewindscreentopreventundesirablesignals.
Thefollowingsymbolsareused:
Caution: Incorrect use may damage the instrument.
The instrument conforms to the CE standard
SuppliedAccessories
User’s manual
Carrying case
9V battery
Microphone and windscreen
PC Software
MINI USB Cable (Mini B type)