
Hand-held Analyzer 2250 Light – User Manual150
Threshold Level 0 to 140 dB Any sound levels below the threshold value do
not contribute to the Dose measurement data.
The time resolution for this calculation is 1 s for
calculation of Dose and ProjDose – and 10 ms
for calculation of TWA, TWA
v
, DoseUQ and
ProjDoseUQ.
Used for calculation of Dose, ProjDose, TWA,
TWAv, DoseUQ, ProjDoseUQ.
U = Time Weighting for Lav: F or S
Q = Exchange Rate for Lav: 4, 5 or 6 dB
Criterion Level 0 to 140 dB Criterion Level is the sound level allowed for an
8-hour period and would yield a 100% dose.
The criterion level must be set according to the
legislation with which you will have to comply.
Used for calculation of Dose, ProjDose,
DoseUQ, ProjDoseUQ.
U = Time Weighting for Lav: F or S
Q = Exchange Rate for Lav: 4, 5 or 6 dB
PeaksOver Level 0 to 200 dB Any peak levels that exceed the level set here
will be counted.
Used for calculation of #XPeaks(>NNNdB)
X = A, B, C or Z, set by Setup – Input –
Broadband Peak, NNN is the PeaksOver Level
Note: Two other peak counters are preset to
count peaks over 135 dB and 137 dB,
respectively
Exchange Rate for Lav 4 dB
5dB
6dB
The increase in noise level that corresponds to a
doubling of the noise level is determined by
Exchange Rate for Lav.
Set Exchange Rate for Lav as required by your
local standards.
Used for calculation of LavUQ, TWA, TWA
v
DoseUQ, ProjDoseUQ.
U = Time Weighting for Lav: F or S
Q = Exchange Rate for Lav: 4, 5 or 6 dB
Note: TWA and TWA
v
requires U = S and
Q = 5
Time Weighting for Lav F
S
Lav will be time weighted in accordance with this
parameter.
Used for calculation of LavUQ, TWA, TWA
v
DoseUQ, ProjDoseUQ.
U = Time Weighting for Lav: F or S
Q = Exchange Rate for Lav: 4, 5 or 6 dB
Note: TWA and TWA
v
requires U = S and Q = 5
Table A.11 (Cont.) Occupational health parameters
Parameter Values Comment
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