PRM2103 Reference Manual
PRM2103-FF Heater Controls
B-2
TAKE NOTE
Alternately, you can
perform an acoustic
calibration with SLM Utility-G3
or G4 software. Refer to the
respective software manuals
for more information.
Step 5
Press
5
to open the Calibrate tool. The user may select a
calibrator from the list or enter new information about a
calibrator.
Step 6
If using a Model CAL200 calibrator, set to 114 dB, and
equivalent free-field level of -0.12 dB at 1 kHz should be
applied for 1/2” free-field microphones.
Step 7
Turn on the calibrator. Select the Calibrate button on the
Model 831 and press
5
. The Calibrating message box
appears. The present sound level (114.0 dB), the difference
between the calibration level and the present sound level
(
), and an indication of stability are displayed in this
message box. When the pointer in the stability indicator is
vertical, the sound level is stable.
FIGURE B-1
Calibrating Message
Step 8
After a few seconds, when the calibration is completed,
another message box appears that shows the amount of
change being made to the calibration. To accept the
calibration, press
5
. To reject this calibration, select No and
press
5
.
Step 9
After performing this acoustical calibration, perform a
calibration check.
B.3 PRM2103-FF Heater Controls
The PRM2103-FF includes a heater to provide protection from
condensation to the microphone. The heater state can be specified for
one of four settings: Off, Low, High, or Auto. The default setting is Auto,
which is recommended for most applications. See 3.3 "PRM2103 Heater
Controls" on page 3-3.
B.3.1 Heater Controls on the Model 831
TAKE NOTE
The heater settings
are visible on the Model 831
only when the PRM2103-FF is
connected to the sound level
meter.
To specify the heater controls through the sound level meter, follow these
steps:
Step 1
Press the
3
(TOOLS) key.
Step 2
Select System Properties and
5
.
Содержание PRM2103
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