RS PRO RS-1150 User manual

Instruction Manual
RS-1150
146-4650
Sound Level Meter

Sound Level Meter / EN
09/15/17 Version No. 00
CONTENTS
Title Page
1. INSTRUMENT CARE............................................................................1
2. FEATURES...........................................................................................2
3. SPECIFICATIONS................................................................................3
4. CONTROLS AND FUNCTIONS............................................................6
5. DISPLAY DESCRIPTION .....................................................................8
6. PREPARATION FOR USE ...................................................................9
7. CALIBRATION PROCEDURE............................................................10
8. MEASUREMENT PROCEDURE.........................................................11
9. OUTPUT CONNECTORS...................................................................12

Sound Level Meter / EN
09/15/17 Version No. 00 1
1. INSTRUMENT CARE
Do not attempt to remove the mesh cover from the microphone as this will
cause damage and affect the accuracy of the instrument.
Protect the instrument from impact. Do not drop it or subject it to rough handling.
Transport it in the supplied carrying case.
Protect the instrument from water, dust, extreme temperatures, high humidity
and direct sunlight during storage and use.
Protect the instrument from air with high salt or sulphur content, gases and
stored chemicals, as this may damage the delicate microphone and sensitive
electronics.
Always turn the instrument off after use. Remove the batteries from the
instrument if it is not to be used for a long time. Do not leave exhausted
batteries in the instrument, as they may leak and cause damage.
Clean the instrument only bywiping it with a soft, dry cloth or, when necessary,
with a cloth lightly moistened with water. Do not use any solvents, alcohol or
cleaning agents.

Sound Level Meter / EN
2 09/15/17 Version No. 00
2. FEATURES
The Sound Level Meter complies with the requirements of IEC 61672-1: 2013
standard for a Class 2 instrument.
The instrument contains several features which permit sound level
measurements under a variety of conditions.
Features include:
Ease of use
Easy to read large display
Three measurement ranges
Fast, Slow and Impulse time weightings
A, C and Z frequency weightings
Maximum, Minimum and Peak hold sound pressure level
Both AC and DC signal outputs are available from a single standard 3.5mm
coaxial socket suitable for use with a frequencyanalyzer, level recorder, FFT
analyzer, graphic recorder, etc.
※ Protected by:
Taiwan: D170349
U.S.A. : US D741,733
China : ZL 2014 3 0449747.6

Sound Level Meter / EN
09/15/17 Version No. 00 3
3. SPECIFICATIONS
Applicable standards: IEC 61672-1: 2013 Class 2
ANSI S1.4: 1983 Type 2
Measurement functions:
•Main processing functions
SPL: Current time-weighted sound pressure level A, C or Z
MaxL: Maximum time-weighted sound pressure level A, C or Z
MinL: Minimum time-weighted sound pressure level A, C or Z
MaxP: Peak sound pressure level A, C or Z
•Total range: 30 to 130dB
•Max. measurement level: 130dB
•Total linear operating range: In accordance with IEC 61672-1, A-weighted,
1000Hz: 30dB to 130dB.
•Level range selection: 3 range in steps 30 to 90dB, 45 to 110dB, and 65 to
130dB
Frequency range: Overall characteristics including microphone: 31.5 to
8000Hz
Frequency weighting: A, C and Z filter weightings satisfying IEC 61672-1
Class 2
Time weighting (RMS detection): Fast (F), Slow (S) and Impulse (I)
according to IEC 61672-1 class 2
•Reference conditions:
Type of the acoustic field: Free
Reference sound pressure level: 114.0dB (related to 20µPa)
Reference level range: 65 to 130dB
Reference frequency:1000Hz
Reference temperature:+23℃
Reference relative humidity: 50%RH
Reference static pressure:101.325 kPa
Reference incidence direction:Perpendicular to the front of the microphone
diaphragm.

Sound Level Meter / EN
4 09/15/17 Version No. 00
•Calibration: Acoustic using sound calibrator
Calibration check frequency is 1000Hz
Nominal calibration level for the free field: 114.1dB
Nominal calibration level for the diffuse field: 114.0dB
•Frequency for acoustic testing:8000Hz
•Warm-up time:≦2min
Display LCD
•Display screens:
4 digit numerical indication of sound level, from 30.0 to 130.0dB with 0.1dB
resolution.
Bar-graph indication of current sound level with 2dB resolution.
Sound level range indicator: 30 – 90dB, 45 – 110dB or 65 –130dB in 3 ranges.
•Display update rate: 0.5 second
•Display first indication: Depends on the condition the instrument when it was
last turned off.
•Warning indications:
Out-of-range indications: OVER displayed at upper limit of the range
UNDER displayed at lower limit of the range
Outputs
•AC output (using selected frequency weighting)
Output voltage:1Vrms (at full-scale of the range)
Output impedance: 5kΩ
Load impedance: ≧1MΩ
•DC output
Output voltage: 10mV/dB
Output impedance: 5kΩ
Load impedance:≧1MΩ
Power requirements
•One 006P 9V or IEC 6F22 or NEDA 1604 battery.
•Battery life: Approx. 24 hours
•Power consumption: ~10mA

Sound Level Meter / EN
09/15/17 Version No. 00 5
Ambient conditions:
•Operating conditions:-10℃to+50℃,30%to90%RHnon-condensing,65kPa to
108 kPa
•Storage conditions: -10℃to +60℃, <70%RH non-condensing, 65 kPa to 108
kPa
•Effect of temperature: < 0.5dB (-10 to +50℃)
•Effect of humidity: < 0.5dB (for 30%RH to 90%RH at 40℃, 1000Hz)
Dimensions: Approx. 246(L) ×64(W) ×26(H) mm
Weight (including battery): Approx. 180g
Supplied accessories: Instruction manual, Batteries, Adjustment screwdriver,
Windscreen, 3.5φplug, Carrying case

Sound Level Meter / EN
6 09/15/17 Version No. 00
4. CONTROLS AND FUNCTIONS
1. Microphone: Electret Condenser microphone
2. Display: The LCD shows the sound level as a numeric value and a bar graph.
The display also shows the operation mode of the instrument, the
selected measurement parameters and warning indications.
3.
key: Press to turn the instrument on and off.
4. key: Level range key: Select the level range for the measurement.
The following 3 settings are available: 30 to 90dB, 45 to 110dB, 65 to
130dB.
5. key: Used for reading the maximum (MaxL), Minimum (MinL) and Current
(SPL blinking display) time-weighted sound level encountered during
a measurement.

Sound Level Meter / EN
09/15/17 Version No. 00 7
 Press key to enter maximum recording mode, the “ MaxL ” mark will appear.
Press key to circulate the display of the maximum (MaxL), Minimum
(MinL) and Current (SPL blinking display) reading.
Press key for 3 seconds to restart the maximum recording mode.
Press key for 6 seconds to exit this mode.
6. key: Sets the frequency weighting to A,C or Z.
7. key: Sets the time weighting to FAST (F), SLOW (S) or Impulse (I).
FAST: Uses a 125ms time-constant. This setting is used in most situations.
SLOW: Uses a 1s time constant, which smoothes out fluctuating levels.
Impulse: Uses a 35ms time constant. Which was traditionallyused to display an
impulsive type noise, allowing the maximum levels to be more easily
seen on a changing display.
8. key: The maximum level in dB reached by the sound pressure at any
instant during a measurement period. It is the true peak level of the
pressure wave, which should not be confused with the highest sound
pressure level, termed MaxL.
Sets the Peak frequency weighting:
a. Press and hold down key then Press key to turn on the meter, until
the “MaxP” mark is displayed.
b. Press key to sets the desired peak frequency weighting A, C or Z.
c. Press key again to exit.
PEAK measurement:
a. Press keyto enter peak recording mode, the “MaxP” mark is displayed.
b. Press key again to restart the peak recording mode.
c. Press key for 3 seconds to exit this mode.
9. CAL potentiometer: Calibration potentiometer for level adjustment.
10. DC/AC output socket:
DC output signal corresponding to sound level.
AC output signal with frequency weighting.

Sound Level Meter / EN
8 09/15/17 Version No. 00
11. Tripod mounting: ¼” - 20 UNC Female thread.
12. Battery cover.
5. DISPLAY DESCRIPTION
1. dB: Sound level range indication (3 ranges:30 – 90dB, 45 – 110dB,
65 – 130dB)
2. UNDER: Under - range indication.
3. OVER: Over - range indication.
4. MaxL: Maximum time-weighted sound level reading indication.
5. MinL: Minimum time-weighted sound level reading indication.
6. SPL: Time-weighted sound level reading indication “Sound Pressure Level”.
7. : Battery capacity indication. When the “ ” mark is blinking, the 9V
battery must be replaced.
8. Bar graph shows the current sound level (2dB resolution).
9. dB: Sound level until.
10. FSI: F - “Fast” time weight indication.
S - “Slow” time weight indication.
I - “Impulse” time weight indication.
11. CAZ: C - “C” Frequency weight indication.
A - “A” Frequency weight indication.
Z - “Z” Frequency weight indication.
12. Sound level reading (0.1dB resolution): 30.0 – 130.0dB.
13. CAZ: Peak frequency weighting C, A or Z indication.
14. PEAK sound level reading.
15. MaxP: Peak sound level reading indication.

Sound Level Meter / EN
09/15/17 Version No. 00 9
6. PREPARATION FOR USE
1. Battery Installation
When the low battery indication symbol “ ” blink appears on the display,
there is insufficient power to make accurate measurements and the 9V battery
must be replaced.
Turn the meter off.
Remove the meter’s battery cover.
Replace the battery.
Affix the battery cover.
2. Windscreen
When making measurements outdoors in strong winds or when measuring air
conditioning equipment or similar, wind noise and strong air movements at the
microphone can cause measurement errors. Such effect can be reduced by
using the windscreen.
3. Tripod Mounting
For long-term measurements, the instrument may be mounted on a standard
camera tripod using the integral ¼” x 20 UNC mounting thread.
Tripod mounting thread
Windscreen

Sound Level Meter / EN
10 09/15/17 Version No. 00
7. CALIBRATION PROCEDURE
Most national standards recommend that you calibrate your sound level meter
before each set of measurements and check the calibration after each set.
The procedure to check/adjust the displayed sound level in response to sound
calibrator:
1. Turn off the sound calibrator.
2. Press the key to turn on the meter.
3. Use the key to select the 65 to 130dB reference sound
level range.
4. Use the key to select “A” frequency weighting.
5. Use the key to select “FAST” time weighting.
6. Insert the microphone very carefully and slowly all the way
into the sound calibrator coupling orifice.
7. Switch on the 1000Hz sound calibrator in its nominal
114dB level setting.
8. Adjust the CAL potentiometer of the instrument, until the
display reading for diffuse field is the same as the certified
pressure level of the calibrator, or is 0.1 dB higher than this
pressure level for free-field. This applies to calibrators.
9. Set the power switch of the sound calibrator to OFF.
10. Remove the microphone very carefully and slowly from the coupler.

Sound Level Meter / EN
09/15/17 Version No. 00 11
8. MEASUREMENT PROCEDURE
Sound level measurement
1. Press the key to turn on the instrument. The initial state depends on the
condition the instrument was in before it was last turned off.
2. Press the keyto selectthe desiredfrequencyweighting.Fornormal soundlevel
measurements,selectthe“A”setting.
3. Press the key to select the desired time weighting (dynamic
characteristics). Normally, the “FAST” setting should be used.
4. When performing measurement according to IEC or other standards, the
frequency weighting and time weighting setting required by the standard should
be selected.
5. Press the keyto select desired level range. Choose a setting in which the bar
graph indication registers approximately the middle of the range. If the “OVER”
indicator appear during measurement, the upper limit of the selected range has
been exceeded. Increase the range setting until the symbol remains off during
measurement.Similarly,ifthe“UNDER”indicator appears,reducetherangesetting
until the symbol remains off during measurement. Both indicators are non-latching
and will clear when the correct range is selected.
6. The numeric level indication shows the currentlymeasured sound level. The
reading is updated two times per second.
7.Press the key or key to record the maximum time-weighted sound
level or peak sound level encountered during a measurement period. Refer to
key or key operation.

Sound Level Meter / EN
12 09/15/17 Version No. 00
9. OUTPUT CONNECTORS
AC Output:
An AC signal corresponding to the frequency-weighted signal is available at this
connector.Output voltage: 1Vrms±50mVrms (scale upper limit)
Output impedance: approx. 5kΩ
Load impedance:≧1MΩ
The output voltage when the meter is in calibration mode
(-16dB from scale upper limit, 1000Hz sine wave) is 158.5mVrms.
DC Output:
A level-converted DC signal generated by RMS detection and logarithmic
compression is available at this connector. The signal reflects the frequency
and time weighting settings of the instrument.
Output voltage: 10mV±0.1mV/dB
Output impedance: approx. 5kΩ
Load impedance:≧1MΩ
The output voltage when the meter is reading 114dB is nominally 1.14V DC.

Manuel d’utilisation
RS-1151
146-4650
Appareil de mesure du niveau acoustique
FR

Appareil de mesure du niveau acoustique / FR
09/15/17 Version No. 00
TABLE DES MATIÈRES
TITRE PAGE
1. PRECAUTIONS D’EMPLOI................................................................................1
2. CARACTERISTIQUES .......................................................................................2
3. SPECIFICATIONS..............................................................................................3
4. COMMANDES ET FONCTIONS........................................................................5
5. DESCRIPTION DE L'AFFICHAGE.....................................................................8
6. PREPARATION AVANT UTILISATION .............................................................9
7. PROCEDURE DE CALIBRAGE.......................................................................10
8. PROCÉDURE DE MESURE.............................................................................11
9. CONNECTEURS DE SORTIES .......................................................................12

Appareil de mesure du niveau acoustique / FR
09/15/17 Version No. 00 1
1. PRECAUTIONS D’EMPLOI
Ne pas tenter d’enlever la protection du microphone. Cela causerait des
dommages et affecterait la précision de l’appareil.
Protéger l’appareil des coups externes. Ne pas laisser tomber ou utiliser de
manière inadaptée. Transportez dans l’étui fourni.
Pendant le stockage et l’utilisation de l’appareil, veuillez le protéger de l’eau,
la poussière, des températures extrêmes, de l'humidité et de l'exposition
directe aux rayons du soleil.
Protégez l’appareil des environnements où l’air est hautement salé ou
sulfureux, gazeux et contient des produits chimiques. Cela endommagerait
la sensibilité du microphone et l’électronique.
Eteigneztoujours l’appareil après utilisation. Retirez les piles de l’appareil s’il
n’est pas utilisé pendant une longue durée. Ne pas laisser les piles usagées
dans l’appareil, elles pourraient couler et endommager l'appareil.
Nettoyer l’appareil en l'essuyant à l'aide d'un chiffon doux et sec ou, si
nécessaire, à l’aide d’un chiffon légèrement humide. Ne pas utiliser de
solvants, d’alcool ou autres produits de nettoyage.

Appareil de mesure du niveau acoustique / FR
2 09/15/17 Version No. 00
2. CARACTERISTIQUES
L'appareil de Mesure du Niveau Sonore répond aux normes du standard IEC
61672-1: 2013 des appareils de classe 2.
Les caractéristiques de l’appareil permettent de mesurer le niveau sonore dans
des conditions variées.
Caractéristiques:
Facile d’utilisation.
Lecture facile sur l’écran large.
3 gammes de mesure.
Rapide, lent et pondérations du temps d’impulsion.
Pondération des fréquences A, C ou Z
Niveau de pression acoustique en mémoire Maximum, Minimum et de Crête
Signaux de sortie AC et DC via une prise coaxiale standard de 3.5mm
compatible pour l’utilisation d’un analyseur de fréquence, enregistreur de
niveau, analyseur FFT, enregistreur de graphiques, etc.
※Protégé par : Taiwan : D170349
Etats-Unis : US D741.733
Chine : ZL 2014 3 0449747.6

Appareil de mesure du niveau acoustique / FR
09/15/17 Version No. 00 3
3. SPECIFICATIONS
Normes standards: IEC61672-1: 2013 Class 2
ANSI S1.4: 1983 Type 2
Fonctions de mesure
•Fonctions de traitement principales
SPL: Niveau actuel de pression acoustique pondérée dans le temps A, C ou Z
MaxL: Niveau de pression acoustique pondéré en fonction du temps
maximum A, C ou Z
MinL: Niveau de pression sonore pondéré en fonction du temps minimum A, C
ou Z
MaxP: Crête Niveau de pression acoustique A, C ou Z
•Plage totale: 30 à 130dB
•Niveau de mesure maximum: 130dB
•Plage totale de fonctionnement linéaire :En accord avec l’IEC 61672-1,
Pondération A, 1000Hz: 30dB à 130dB.
•Sélection des plages de niveau: 3 plages par intervalles de 30 à 90dB, 45 à
110dB, 65 à 130dB
Plage de fréquence :Caractéristiques globale comprenant le microphone :
31.5 à 8000Hz
Pondération de fréquence : Pondérationsde filtrage A, C et Z respectant IEC
61672-1 Classe 2
Pondération de temps (Détection RMS) : Rapide (F), Lent (S) et Impulsion (I)
conformément à IEC 61672-1 classe 2
•Conditions de références :
Type de champ acoustique : Libre
Niveau de pression acoustique de référence : 114.0dB (relatif à 20µPa)
Plage de niveau e référence : 65 à 130dB
Fréquence de référence : 1000Hz
Température de référence : +23°C
Humidité relative de référence : 50%RH
Pression statique de référence : 101.325 kPa
Direction d’incidence de référence : Perpendiculaire par rapport à l’avant du
diaphragme du microphone.
•Calibration : Utilisation du calibrateur acoustique SLC 1356.
La fréquence de calibration est de 1000Hz.
Niveau nominal de calibration pour un champ libre : 114.1dB
Niveau nominal de calibration pour un champ diffus : 114.0dB
•Fréquence pour les tests acoustique 8000Hz
•Temps de mise en route :
≦ 2mins

Appareil de mesure du niveau acoustique / FR
4 09/15/17 Version No. 00
Affichage LCD
•Ecran d’affichage :
Niveau acoustique indiqué par 4 chiffres numériques, de 30.0 à 130dB par pas de
0.1dB.
Graphique en barre du niveau acoustique actuel avec une résolution de 2dB.
Indicateur de la plage du niveau acoustique: 30 à 90dB, 45 à 110dB ou 65 à
130dB
•Fréquence de rafraichissement : 0.5 seconde
•Affichage de la première indication : Dépend de la condition dans laquelle
l’appareil a été mis hors tension.
•Indicateur d’avertissements:
Indications hors-plage : OVER est affiché lorsque la limite supérieure de la
plage est dépassée
UNDER est affiché lorsque la limite inférieure de la
plage est dépassée
Sorties
•Sortie AC (utiliser la fréquence pondérée)
Tension de sortie : 1Vrms (plage complète)
Impédance de sortie : 5kΩ
Charge d’impédance: ≧ 1MΩ
•Sortie DC
Tension de sortie: 10mV/dB
Impédance de sortie: 5kΩ
Charge d’impédance: ≧ 1MΩ
Alimentation électrique
•Une pile 9V (006P ou IEC6F22) au manganèse à charge élevée ou équivalente.
•Durée de vie des piles: Approx. 24 heures
•Intensité courante: ~10mA
Conditions ambiantes
•Conditions de fonctionnement: -10°C à +50°C, 30% à 90%RH sans
condensation, 65 kPa à 108 kPa
•Conditions de stockage : -10°C à +60°C, <70%RH sans condensation, 65 kPa
à 108 kPa
•Effet de la température: < 0.5dB (-10 à +50℃)
•Effet de l’humidité: < 0.5dB (de 30%RH à 90%RH à 40°C, 1000Hz)
Dimensions: Approx. 246(L)×64(W)×26(H) mm
Poids (batterie comprise): Approx. 180g
Accessoires supplémentaires: Pile 9V, Aérée, Tournevis, Fiche 3.5φ, Etuit de
transport, Manuel d’utilisation