2SL400‐en‐GB_V1.02/16
Introduction
Thank you for selecting the Extech Instruments Model SL400. This device is shipped fully tested
andcalibratedand,withproperuse,willprovideyearsofreliableservice.Pleasevisitourwebsite
(www.extech.com)tocheckforthelatestversionofthisUserGuide,ProductUpdates,Software,
andCustomerSupport.
Safety
CAUTION:Avoidtakingmeasurementsinhumidorwetenvironments.
WARNING:Ensurethattheambienthumidityconditionsarewithinthosespecifiedandreferenced
intheEnvironmentalConditionssection.
WARNING:Avoidtakingmeasurementsinthepresenceof:
Explosivegases
Combustiblegases
Steam
Excessivedust
CAUTION:Donotoperatethe
instrumentinambienttemperatureandhumidityconditionsbeyond
thoserecommendedandreferencedinthe EnvironmentalConditionssection.
ATTENTION:Keepthemicrophonedryandavoidseverevibration.
ATTENTION: Wind blowing across the microphone can add extraneous noise. If the instrumentis
usedinwindyconditions,usethesuppliedmicrophonewindscreento
preventundesirablesignals.
Thefollowingsymbolsareused:
Caution:Incorrectusemaydamagetheinstrument.
TheinstrumentconformstotheCEstandard
SuppliedAccessories
User’smanual
Carryingcase
9Vbattery
Microphoneandwindscreen
PCSoftware
MINIUSBCable(MiniBtype)
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