Pro II Sound Level Meter V-9992
Title Page I. Safety Information.................................1 II. General Description ...........................1-2 III. Specifications.....................................2-3 IV. Name and Functions..........................4-5 V. Calibration Procedures ......................6-7 VI. Measurement Preparation ....................7 VII. Operating Precautions ..........................7 VIII. Measurement ........................................
SOUND LEVEL METER I. Safety Information Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Environmental Conditions Altitude up to 2000 meters Relative humidity 90% max Operation Ambient 0 - 40°C Maintenance & Cleaning Repairs or servicing not covered in this manual should only be performed by qualified personnel.
SOUND LEVEL METER Display with 0.1dB steps on a 4-digit LCD. Two equivalent weighted sound pressure levels, A and C. AC signal output is available from standard 3.5mm coaxial socket suitable for a frequency analyzer, level recorder, FFT analyzer, graphic recorder, etc. III. Specifications Standard Applied: IEC651 Type 2, ANSI S1.4 Type 2. Frequency Range: 31.
SOUND LEVEL METER AC Output: 1 Vrms at FS (full scale) Output impedance: Approx 100 Ohms FS: means the upper limit of each level range Power Supply: One 9V battery, 006P or IEC 6F22 or NEDA 1604 Power Life: Approximately 70 hours (alkaline battery) Operation Temperature: 0 to 40°C (32 to 104°F) Operation Humidity: 10 to 90% Relative Storage Temperature: -10 to 60°C (14 to 140°F) Storage Humidity: 10 to 75% Relative Dimensions: 9.1” L x 2.1” W x 1.3” H (23.1 cm x 5.3 cm x 3.3 cm) Weight: .75 lbs (.
SOUND LEVEL METER IV. Name And Functions 1 Windscreen If you operate at wind speed over 10m/sec (22 mph), please use protective accessory.
SOUND LEVEL METER 3 Power Button The key turns the sound level meter ON or OFF. 4 MAX / MIN Hold Button Press button to enter the maximum and minimum recording mode. Select the proper Level range before using MAX/MIN to ensure that reading value will not exceed the measurement range. Press once to select MAX value. Press again to select MIN value, and press again to select current Value with “ MAX /MIN “ annunciator blinking. Press and hold down button for 2 seconds to exit the MAX/MIN mode.
SOUND LEVEL METER AC output terminal - 1 Vrms Corresponding to each range step. - Output impedance = 100 ohms - Output signal by standard 3.5 mm coaxial socket signal on pin. Battery Cover V. Calibration Procedures Using a standard Acoustic Calibrator (94dB, 1kHz sine wave).
SOUND LEVEL METER (1) Make the following switch settings. Display: dBA Time Weighting: FAST Measurement Mode: MAX/MIN Mode function disable Level Range: 50 to 100 dB (2) Insert the microphone housing carefully into the insertion hole of the calibrator. (3) Turn on the switch of calibrator and adjust the CAL potentiometer of the unit. The level display will indicate the desired level. Our products are all well calibrated before shipment. Recommended Recalibration cycle: 1 year. VI.
SOUND LEVEL METER VIII. Measurement (1) Open battery cover and install a 9V battery in the battery compartment. (2) Turn power ON and select the desired response time and weighting. If the sound source consists of short bursts or only catching sound peak, set response to FAST. To measure average sound level, use the slow setting. Select A-weighting for general noise sound level and C-weighting for measuring sound level of acoustic material. (3) Select desired level.
