Ht-instruments HT157 Manuel d'utilisateur télécharger pdf (Page 38)

HT155 - HT157

EN - 36

Line 4

This line indicated the sound pressure level set on the portable calibrator

HT151 during the calibration operation (see § 6.1.3)

Line 5

This line shows the results of the calibration operation. When the

instrument is calibrated by means of frequency weighting type C, “Lpx=”

indicates the current sensitivity level of the microphone

Line 6

This line contains the menu items which can be selected by the user

 The “Rec.” option allows displaying the results of each calibration

operation

 The “Cal.” Option allows activating the calibration procedure (see §

6.1.3)

 The “App.” option is used for saving each setting defined by the user

during the manual adjustment procedures of the sensitivity levels

 The “Mod.” option is used for the selection of the items relevant to the

manual adjustments of the sensitivity levels

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Ht-instruments HT157 Manuel d'utilisateur Page 38