LEQ detector
Following LEQ detectors are available in the instrument: Imp., Fast and Slow.
Dosimeter specific parameters can be set in accordance with the OSHA HC
(Occupational Safety and Health Administration - Hearing Conversation),
OSHA PEL (Occupational Safety and Health Administration – Permissible
Exposure Level) and ACGIH standards.
Criterion Level is a steady noise level permitted for a full eight-hour work shift:
60dB, 65dB, 70dB, 75dB, 80dB, 84dB, 85dB, 87dB, 90dB;
Threshold Level is a noise level limit below which the dosimeter does not
accumulate noise dose data: None, 60dB, 65dB, 70dB, 75dB, 80dB, 85dB,
90dB;
Exchange Rate is an amount by which the permitted sound level may increase if
the exposure time is halved: 2, 3, 4, 5, 6;
ULT Threshold Level (Upper Level Time) is a threshold level for calculation of
the ULT results: 70dB ÷ 140dB;
PTC Threshold Level (Peak Threshold Counter) is a threshold level for
calculation of the PTC results: 70dB ÷ 140dB.
11.4 CHECKING MEASUREMENT RANGE – RANGE
The measurement range for the Dosimeter function is
50.0 LEQ(A) – 141.0 PEAK. The detailed description of
the measurement range parameters is given in
Appendix C.
The calibration factor is always added to the lower and
upper range level.
11.5 SETTING EXPOSURE TIME – EXPOSURE TIME
The Exp. Time enables setting the desired value of the
workday exposure time which is used for calculation of
the LEPd results (see Appendix D).
11.6 SETTING ALARM THRESHOLDS FOR DOSE METER RESULTS – ALARM
The Alarm position is active only in the Dosimeter
function and enables programming the alarm thresholds
for three profiles (Thresh. P1 (2,3)).
Thresholds can be set for next measurement results of
the Dosimeter in ranges:
DOSE: 1÷200%;
D_8h: 1÷200%;
PTC: 1÷1000;
ULT: 1÷60s.
If Off is selected, the alarm for the measurement result is
switched off.
To Next Page
Loading...
Need help?
General
