Chapter 1 – Introduction
Measurement Parameters
BB1122–11
1–9
2238 Mediator
User Manual
Underrange% Under-
range%
The percentage of time
that an underrange
occurred during a meas-
urement
––
Elapsed Time
Elapsed
Time
The amount of time that
has passed since the cur-
rent measurement began
(measurement time
excluding pauses)
––
Start Time Start
Time
The start time for the cur-
rent measurement
––
Start Date Start
Date
The start date for the cur-
rent measurement
––
Time Time The current time – –
Detector 2 — RMS Parameters
L
Xeq
LCeq Equivalent continuous
level for the duration of
the measurement as
defined by IEC1672
“A”, “C”
or “L”
–
L
XIeq
LCIeq Equivalent continuous
level of the impulse
weighted SPL
“A”, “C”
or “L”
“I”
L
XYmax
LCFmax Max. L
XYp
value detected
within the elapsed time
“A”, “C”
or “L”
“F”, “S” or
“I”
L
XYmin
LCFmin Min. L
XYp
value detected
within the elapsed time
“A”, “C”
or “L”
“F”, “S” or
“I”
L
XYp
LCFp Sound pressure level
(display only)
“A”, “C”
or “L”
“F”, “S” or
“I”
L
XYinst
LCFInst Randomly sampled
instantaneous value of
RMS level (display only)
“A”, “C”
or “L”
“F”, “S” or
“I”
Table 1.1 (cont.) Parameters available with the Enhanced module
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