Extech Instruments TB400 - Page 5

TB400-en-GB_V1.3 8/16
5
7. Gentlyshakethe100NTUtestsolutionbottle,Lineupthewhitemarkonthebottleand
insertitintothetestchamberandcloseandlockthecover.
8. Momentarilypressthe"CAL"button.TheLCDwillflashCALfor10seconds.




9. Whencalibrationiscompletethe
LCDwillreturntonormaloperatingmode.

NOTE:Ifthefollowingerrormessageappears"Errorcannotbecalibrated..."checkthevalueofthe
standardsolution.Iferrormessagestillappearscompletethe"CalibrationClear"
procedure.
CAL
100 ntu
w ww . . co m
information@itm.com1.800.561.8187