Svantek SV 102+ Dual-Channel Noise Dosimeter
SV 102+ Dual Channel Noise Dosimeter replaces our ground breaking SV 102. It has been designed for the
accurate measurement of noise exposure to ISO 9612 and MIRE (microphone in real ear) measurements to
ISO 11904-1.
This new instrument uses a class beating high resolution, full colour OLED screen making it even easier to
read; even in full daylight. The small memory capability of its predecessor; the SV102, has been upgraded by
adding a microSD card for an incredible amount of storage capability. The sampling rate has been increased
from 24 kHz to 48 kHz which enables the measurement of sound in the full frequency band. Also new is an
LED that indicates the status of the measurement and changes colour when the noise dose exceeds the limit
set.
A unique feature of all SVANTEK dosimeters, including the SV102 +, is their ability to simultaneously analyser
1/1 octave and record audio events. The use of 1/1 octave analysis is the most accurate method for the
correct selection of hearing protection to ISO 4869-2 while simultaneous audio recording allows the user to
capture and eliminate false sounds affecting the result of exposure to noise
Unlike classic single channel noise dosimeters, the two channel SV102 + gives the unique opportunity to
assess the exposure on both sides of the head simultaneously. This is particularly important where a worker
is exposed to noise coming from a dominant directional source where placing the microphone on only one
side could understate the true level of noise exposure. Another use of dual channel technology is the
simultaneous measurement of noise both outside and inside any hearing protection being used with the use
of a SV25S MIRE microphone.
MIRE methodology requires 1/3 octave analysis, another feature uniquely available in the SV102 +. MIRE
measurement involves measuring the sound in the ear and performing a one-third octave band analysis on
it. Using the SV102 + in conjunction with a special microphone probe like the SV25S, placed at the entrance
of the ear canal, makes this all possible. A typical application of MIRE measurement is noise exposure
monitoring in telephone call centres where the sound comes from the headphones; an application not
suited to classical dosimetry methods.
Calibration of the both the SV102 + and the MIRE microphone is done using a SV34 calibrator. The
calibration factor is stored inside the instrument and in the TEDS memory of the SV102+ microphones. This
cross checking solution helps to prevent incorrect calibration factors being used.
The SV102 + is a low power instrument and is powered using only two small AAA batteries. It is fully
supported by our Supervisor software which is dedicated to Health and Safety applications.
Applications
- Sound measurements
- Environmental noise
- Occupational noise
- Building acoustic
- Ultrasound/infrasound
- High level/low level noise
- Machine vibration
- Tonality measurement
Part No
1) Svantek Model SV 102+ – Class 2 Dual Channel Noise Dosimeter
2) Svantek Model SF 102+ OCT – 1/1 octave analysis option
3) Svantek Model SF 102+ 3OCT – 1/1 & 1/3 octave analysis option
4) Svantek Model SF 102+_REC – Audio events recorder option
Features
- Dual channel Acoustic Dosimeter conforming to IEC 61252 and ANSI S1.25-1991
- Dual channel class 2, Sound Level Meter conforming to IEC 61672
- Dual channel 1/1 octave analysis (option)
- Dual channel 1/3 octave analysis (option)
- Single measurement range
- Measurement range 45 dBA RMS ÷ 141 dBA Peak
- MIRE measurement technique with SV 25S (optional hardware required)
- Individual evaluation of the HPDs attenuation in real-world
- Three parallel independent profiles per channel
- Advanced data logger with audio-events-recording (option)
- Automatic calibration thanks to the TEDS technology
- MicroSD card 8 GB
- USB interface
- Super contrast OLED display 160×128 pixels
- Integration time programmable up to 24 h
- Power supply by two AA rechargeable or standard batteries
- Easy operation
- Extremely compact, lightweight (260 grams with batteries) and robust case (volume comparable to
PDA devices)
Specification
Standards : IEC 61252; ANSI S1.25-1991; Class 2: IEC 61672:2002, ISO 11904-1
Acoustic Dosimeter Mode : Lav/Leq, SPL, Lmax, Lmin, SEL, SEL8, PSEL, LEPd, Dose (%),
TWA, E, E_8h, Peak, Run Time, Upper Limit Time (ULT),
L(C-A), Projected Dose (D_8h)
SLM Mode : Leq, Spl, SEL, LEP,d, Lden, Ltm3, Ltm5, statistics – Ln (L1-L99), LMax, LMin, LPeak
Simultaneous measurement in three profiles with independent set
of filters and detectors
Weighting Filters : A, C and Z
RMS Detector : Digital true RMS detector with Peak detection, resolution 0.1 dB
Time constants: Slow, Fast, Impulse
Microphone : SV 25D, Class 2, ceramic microphone, 1/2" housing with built-in preamplifier & integrated cable SVÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25S, special microphone with dedicated probe for
Microphone-In-Real-Ear technique (option)
SV 25D and SV 25S have built-in TEDS functionality for the automatic calibration
Measurement Range : 45 dBA RMS ÷ 141 dBA Peak (with SV 25D microphone)
Frequency Range : 20 Hz ÷ 20 kHz, sampling rate 48 kHz
Dynamic Range : 100 dB
Data Logger 1 : Time-history logging of Leq/Lmax/Lmin/Peak/Lav results to
internal memory with time step down to 100Â millisecond to
microSD card
Audio Recorder 1 : Time-domain signal events recorder (option)
Dual-channel Mode : Dual-channel measurement mode with second microphone SV 25D or SV 25S
1/1 Octave 1 : Dual-channel 1/1 octave real-time analysis and spectra logging,
10 filters with centre frequencies from 31.5 Hz to 16 kHz, Type 1: IEC
61260 (option)
1/3 Octave 1 : Dual-channel 1/3 octave real-time analysis and spectra logging, 31 filters with centre frequencies from 20Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Hz to 20 kHz, Type 1, IEC 61260 (option)
Basic Data
Input : 2 x LEMO 2-pin, Direct
Display : Colour 160 x 128 pixels OLED type
Memory : MicroSD card 8 GB (removable & upgradeable)
Interfaces : USB 1.1 Client
Extended I/O – AC output (1 V Peak) / Digital Output (Alarm trigger) /
Digital Input (Input trigger)
Power Supply : Two AA batteries (alkaline): operation time > 16 h (3.0 V / 1.6 Ah) 2
Two rechargeable batteries (not included): operation time > 20h (2.4 V / 2.6 Ah) 2
USB interface: 150 mA HUB
Environmental Conditions : Temperature: from -10Â o C to 50Â o C
Humidity: up to 90 % RH, non-condensed
Dimensions : 95 x 83 x 33 mm (without microphones)
Weight : 260 grams with batteries (without microphones)
1 function parallel to the acoustic dosimeter mode or meter mode
2 depends on instrument operation mode
Svantek SV 102+ Dual-Channel Acoustic Dosimeter datasheet
