BB106411.book : 2237-ch3 Black 9
Chapter 3 – Taking Measurements
Taking Measurements
BB1064–11
3–9
2237 Controller
User Manual
7. If you are keeping manual records, then press to
step through the displayed parameters until the ones you
need are visible. Take note of your readings.
8. If you want to make a print using a portable printer,
then refer to section 4.2 for connecting and printing in-
structions.
9. If you want to download your results to a computer, then
refer to section 4.3.
3.2.3 Overload Conditions
If you measure sound with peak values higher than the upper
limit of the measurement range, then the sound level meter
will register an overload. This may invalidate your measure-
ment because the instrument is not capable of reading how
loud the overload was, only that an overload occurred. Over-
loads are indicated in two ways:
1. Instantaneous Overload: If an overload has occurred with-
in the last second, then the upper limit of the measure-
ment range value will change to read “OVL”, as shown in
Fig. 3.4, until the overload stops.
2. Latched Overload: If the instrument is taking a meas-
urement when the overload occurs, it will show OVL until
the overload stops (as described above). Thereafter, the
upper limit of the measurement range will blink until a
new measurement is started.
Fig.3.4 Instantaneous overload
STOP 00:00:00
MaxP ---.- dB
AF MinL ---.- dB
30 OVL
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