Intelligent digital sound level meter noise test measurement
equipment
1. Safety
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.
▲ Environment conditions:
1.RH≤90RH％(Non-condensation)
2.Operating temperature:-20～60℃/-4～140℉
▲ Maintenance
1.Repairs or servicing not covered in this manual should only be
performed by qualified personnel.
2.Wipe the unit with a dry soft cloth. Do not use abrasives or
solvents on this instrument.
▲ Safety Symbol:Comply with EMC
2. Application
This unit adopts condenser microphone as the sensor, high
configuration MCU calculation, high accuracy, fast response. This
Sound Level Meter is designed to meet the measurement requirements
of safety Engineers, Health, Industrial safety offices and sound
quality control in various environments like factory, school,
construction, etc.
3. Features
- High accuracy, fast response
- Color LCD display with backlight
- Temperature measurement
- MAX,MIN
- Data HOLD
- Wide frequency range
- Fast/slow time weighting
- Over range indication
- Enable/Disable auto power off
4. Basic Operation
4.1. Open battery cover and install 3*1.5v AAA batteries in the
battery compartment.
4.2. Power on；press“ ”to turn on the meter,the meter conducts
self-inspection, after LCD displays, it measures temperature and
sound level automatically.
4.3. After testing,Press“ ”to turn off the meter
Note: Remove the battery when the meter is to be stored for long
periods of time to avoid battery leakage
5. Specification
| Applied Standard | IEC61672-1 CLASS2 |
| Measuring level range | 35dB～135dB |
| Dynamic range | 50dB |
| Frequency range | 31.5Hz～8KHz |
| Accuracy | ±2.0dB |
| Frequency weighting | A frequency weighting |
| Time weighting | FAST:125ms/ SLOW: 1s |
| Microphone | 1/2 inch electrets condenser microphone |
High/low reading indication | ﹥100dB,LCD displays“Hi” |
| ﹤100dB,LCD displays“LO” |
| Temperature range | -20℃～70℃/-4℉～158℉ |
| Temperature accuracy | ±1.5℃/2.7℉ |
| Resolution | 0.1 |
| Data update | 300ms |
| Battery life | at least 60 hours |
Enable/Disable Auto power off | The meter shuts off automatically after 15 minutes inactivity under
auto power off mode, disable auto power off is available |
| Battery | 3*1.5V “AAA” batteries |
| Operating conditions | -20℃～60℃/-4℉～140℉,10RH%～90 RH% |
| Storage conditions | -20℃～60℃/-4℉～140℉,10 RH%～75 RH% |
| Dimensions | 144*56*30.5mm |
| Weight | 73g |
6. Meter description
1. Windscreen microphone cover
2. LCD Display
3. Hold button
4. Power on/off button
5. MAX/MIN
6. Fast/ Slow selection key
7. Nameplate
8. Battery compartment
7. LCD display description
1. Data hold Icon
2. Auto power off Icon
3. Temperature readings
4. Sound level readings
5. Fast/Slow Icon
6. Hi/Lo Icon
7. Frequency weighting Icon
8.T emperature unit Icon
9. Low battery Icon
10. MAX/MIN Icon
8. Notes
1) This meter has already been calibrated before delivery. Do not
revise the calibration parameters without professional personnel
and device.
【Note】All products are well calibrated before delivery. Recommended
recalibration cycle: 1 year..
2) Repairs or servicing not covered in this manual should only be
performed by qualified personnel.
3) Wipe the unit with a dry soft cloth periodically. Do not use
abrasives or solvents on this instrument.
4) Remove the battery when the meter is to be stored for long
periods of time to avoid battery leakage.
5) when the battery is low,LCD display,A new battery is needed.
6) Do not store or operate the meter in high temperature or
humidity.
7) Wind blowing across the microphone increases the noise
measurement. Use the supplied windscreen to cover the microphone
when appliance.
8) Keep microphone dry and avoid severe vibration.
10. Accessories:
1. User's manual
2. 3*1.5V AAA Battery
3. Windscreen
