Choosing Preamp Heater Options; Setting Reference Spectra - Larson Davis SoundAdvisor 831C Reference Manual

9.13 Choosing Preamp Heater Options

FIGURE 9-10 Recommended Heater Settings

9.14 Setting Reference Spectra

SoundAdvisor Model 831C
If a heater is detected as part of your chosen preamp, select your preference
for the heater control.
Step 1
On the meter, press Tools
*//
softkey (
Step 2
Choose a setting from the Heater drop-down menu.
Enabled: The heater automatically turns on or off according to the
•
humidity and ambient temperature as shown in Figure 9-10. We
recommend using this setting.
100%
90%
High
80%
70%
60%
50%
40%
30%
20%
10%
0%
-10 0 1
Timer: Turns the heater on and off automatically according to the
•
Start Time (24-hr time) and End Time (24-hr time) you set here.
• Off: The heater remains off.
This feature applies to SoundAdvisor™ 831C meters with the Octave Band
Analysis firmware option (831C-OB1) purchased, and installed.
When you apply octave band data, you have the option to choose a negative
or positive A, or C weighting, or you can define up to 4 unique reference
spectra as shown in the following process.
Choosing Preamp Heater Options
3

System Properties, then press the top-left
) until the Other page displays.
Heater Control
Low
2 3 4
T e m p e r a t u r e ( C )
Off
5 6 60
9-15