INSTRUMENTS INSTRUMENTS Model R8050 Sound Level Meter Instruction Manual www reedinstruments REED Instruments com 1-877-849-2127 | info@reedinstruments.com | www.reedinstruments.
Table of Contents Safety............................................................................................. 2 Specifications................................................................................. 3 Instrument Description................................................................4-6 Operating Instructions.................................................................6-7 Battery Replacement......................................................................
Specifications Standard Applied: Frequency Range: Measuring Level Range: Resolution: Accuracy: Frequency Weighting: Time Weighting: Level Ranges: Display: Display Update: Alarm Function: Maximum Hold: Microphone: Calibration: Auto Power Off: Operating Temperature: Operating Humidity: Storage Temperature: Storage Humidity: Power Supply: Battery Life: Dimensions: Weight: IIncludes: Optional Accessories: IEC 61672-1 CLASS 2 31.5Hz~8KHz 30~130 dB 0.1 dB ±1.
Instrument Description INSTRUMENTS reedinstruments REED Instruments www com 4 INSTRUMENTS | info@reedinstruments.com | www.reedinstruments.
1. Windscreen If you operate at wind speeds over 10m/sec, please put protective accessories in front of the microphone. 2. display SYMBOL LCD MAX OVER F S A C LO HI BAT FUNCTION 4-digits Max. value hold Over range Fast response Slow response A-weighting C-weighting Low range High range Low battery 3. Power oN/oFF Button Turn the meter power ON/OFF 4. Backlight Button Turn the display backlight ON/OFF 5. A-Weighting/C-Weighting Select Button A/C A: A-Weighting. For general sound level measurements.
8. MAX/Hold Button MAX/HOLD The MAX Hold position is used to measure the maximum level of sounds. The maximum measured level is updated continuously. Pressing the button a second time will release the maximum hold function and allow another measurement. The Data Hold function freezes the reading on the display. Data Hold Button: Press and hold the button for 2 seconds to turn the data Hold function on or off. 9. Microphone 1/2-inch electret condenser microphone 10.
Measurement Procedures 1. 2. 3. 4. 5. 6. Turn on power 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, use the SLOW setting. Select A-weighting for general noise sound level and C-weighting for measuring sound level of acoustic material. Select desired level.
Calibration Procedure To calibrate the REED R8050, an external calibrator that can provide a 94.0dB signal at 1 kHz is required (REED R8090) in addition to a small screw-driver. 1. Open the battery compartment and locate the two calibration potentiometers behind the 9V battery (see diagram) 2. Turn the meter ON 3. Put the meter in the ‘C’ weighting mode 4. Put the meter in the ‘FAST’ response mode 5. Place the REED R8050 microphone into the calibrator. Set the calibrator to output a 1kHz sine wave @ 94dB 6.
