Larson Davis CAL150, Руководство пользователя

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CAL150 Technical Reference Manual Using the CAL150 Calibrator 2-1
C H A P T E R
2
Using the CAL150
This chapterr describes the setup and operation of the
CAL150.
Installing the Battery
The CAL150 uses a nine-volt battery and it is recommended
that you use an alkaline battery to extend the running time of
your calibrator. The CAL150 will run for approximately 100
hours on one nine-volt battery when using the 114 dB output
level. This will give you nearly 4200 calibrations.
Follow the steps below to install the battery:
Step 1 Slide the battery door on the lower section of the
back panel up to remove it.
Step 2 Gently pull the battery connector clip sufficiently
outside the interior to permit it to be snapped onto
the battery terminals.
Step 3
Tuck the battery, with the battery connector clip
attached, into the battery compartment.
Step 4 Slide the battery door back into place, pressing
until the tab snaps the door securely shut.
Microphone Calibration
The CAL150 provides a nominal tone of 1 kHz, which
requires no weighting filter corrections when used with
sound level meters utilizing A, B, C or Z (Flat) frequency
weighting.
Selecting the Output Level
The output level is user-selected to be 94.0 or 114.0 dB
using the slide selector on the side of the CAL150. Slide the
switch to lower position for 114.0 dB or to the upper