User's Manual
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 mea
surement
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 th e meter，the meter conducts self-inspection, after LCD displays, it measures
temperature and sound level automatically.
4.3.After testing，Press“
”to turn o 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
indic
ation
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
PCE-MSL 1
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. Battery compartment
8. Nameplate
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. Temperature unit Icon
9. Low battery Icon
10. MAX/MIN Icon
8. Operation instruction
8.1 Power on/off: press“ ”to turn on/off the meter.
8.2 Data Hold: In measuring mode，press“ ”, “HOLD” Icon will appear on the LCD，which indicates the
data is freezed, to release the held reading, press“ ”again.
8.3 MAX/MIN；In measuring mode，press“ ”， “MAX” will appear on the LCD, the captured maximum
sound level will be displayed on the LCD, Long press“ ”, the meter exit MAX/MIN measurement mode and back
to normal measuring mode.
8.4 key；with the meter on，press“ ”to select FAST(125s) or Slow(1s) time weighting measurement.
FAST: Fast sampling measurement,1 time per 125ms.
SLOW: Slow sampling measurement, 1 time per second
8.5 Use of compound key；
8.5.1 With the meter off，press“ ”first and hold，then press“ ”to turn on the meter，it can change
temperature unit(°C/°F).℃ is preset.
8.5.2 With the meter off，press “ ”first and hold，then press“ ”to turn on the meter， “ ”Icon on the
LCD display disappear，which indicates the power off function is disabled，you need to turn off the meter through
pressing “ ”by manual.
Note: When“ ”icon displayed on the screen, it indicates that the meter will automatically turn off after approx. 15
minutes of inactivity.
9. 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
11. Warranty
You can read our warranty terms in our General Business Terms which you can find here:
https://www.pce-instruments.com/english/terms.
12. Contact
If you have any questions about our range of products or measuring instruments please contact PCE Instruments.
PCE Instruments UK
By post:
PCE Instruments UK Ltd.
Units 12/13 Southpoint Business Park
Ensign Way, Southampton
Hampshire
United Kingdom, SO31 4RF
By phone:
02380 987 035
PCE Americas
By post:
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
33458 FL
USA
By phone:
561 320 9162
13. Disposal
For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament applies. Due to the
contained pollutants, batteries must not be disposed of as household waste. They must be given to collection points
designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use them or give them to a
recycling company which disposes of the devices in line with law.
For countries outside the EU, batteries and devices should be disposed of in accordance with your local waste
regulations.
If you have any questions, please contact PCE Instruments.
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