Svantek SV 971A User Manual

SV 971A User Manual
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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
set to Normal and you cannot change it. The detailed
description of the measurement range parameters is
given in Appendix C.
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11.5 SETTING EXPOSURE TIME – EXPOSURE TIME
The Exp. Time position enables setting the desired
value of the workday exposure time which is used for
calculation of the LEPd results (see Appendix D).
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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:
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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.
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Svantek SV 971A Specifications

General

Brand	Svantek
Model	SV 971A
Category	Measuring Instruments
Language	English