SV 104IS USER’S MANUAL ______________________________________________________
8
1 INTRODUCTION
The SV 104IS instrument is a revolutionary new approach to occupational health and safety noise
monitoring offering voice comments, audio events recording and vibration shock detection functions
which are new and useful concepts in an instrument of this size. It is a cable-free dosimeter and is typically
attached to the user’s shoulder, close to the ear using the mounting clips supplied.
This personal dosimeter has an incredibly robust 1/2" MEMS microphone (part number SV 27IS)
enabling easy and automatic calibration using most commonly available acoustic calibrators.
The class beating, high resolution, amazing colour OLED screen displays information in both text and
graphical form and offers excellent visibility in dark sites as well as in full daylight conditions.
Three independent acoustic profiles allow parallel measurements with separately defined filters
and RMS detector time constants. Each profile provides an extensive number of results (like Leq, Lmax,
Lmin, Lpeak, L, LE,…). All required weighting filters (A, C, Z) can be calculated in parallel.
For instance, it is trivial to set one profile to monitor noise parameters using the ACGIH (American
Conference of Governmental Industrial Hygienists) preset, second profile set to OSHA HC (Occupational
Safety and Health Administration - Hearing Conversation) preset and simultaneously monitor noise with the
OSHA PEL (Occupational Safety and Health Administration – Permissible Exposure Level) settings.
Using the computational power of its digital signal processor the SV 104IS instrument can
simultaneously measure the dosimeter results and perform real time 1/1 Octave analysis including the
calculations of the statistical levels.
An inbuilt tri-axial accelerometer for vibration shock detection firmly places SV 104IS as both the
most technically advanced and the most robust personal dosimeter out there.
Advanced time history logging for each profile provides safe and complete information about
measured signal in the internal considerably large 64MB memory.
The instrument is powered from internal new generation Li-ion rechargeable battery offering above
50 hours
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of continuous operation. Typical operating time for new battery is 60 hours. This cell technology
offers up to 500 charge cycles and still maintains above 85% of initial performance. Low battery self-
discharge is about 1% per month in comparison to 40% per month in standard NiMH technology.
The powering and charging of the instrument with use of SA 104-5 or SA 104-1 docking station with
the USB interface enables easy data exchange connection between the SV 104IS and a PC.
The instrument works with Svantek’s specialist health and safety software package - Supervisor,
and also with the full analysis package SVAN PC++.
Robust and lightweight design including solid screw mounted windshield enhances the exceptional
features of this new generation instrument. Add to it the automatic calibration feature and one can say:
“Never before has a noise dosimeter been so accomplished yet so affordable, making your measurements
more accurate and reliable than ever before”.
To get started quickly with the SV 104IS, the first part of the manual describes basic noise dosimetry
information followed by a guide to setting up the dosimeter and running measurements.
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Display off. Octave analysis off;
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