Deyi SR-516A User manual

SR-516A manual
Instruction Manual Overview
1. Safety and Maintenance
2. Description of exterior
structure
3. Description of key functions
4. Display Interface
5. Operation Description
6. Power on or off
7. How to take sample test
8. Test unit interface conversion
9. Temperature unit conversion
10. Manual and automatic
measurement conversion
11. Automatic measurement
interval setting
12. History search
Parameter setting:
Backlight setting
Clear records
Time setting
Auto power off setting
Language setting
Restore factory settings
Technical Parameters
Common Problems Analysis
Overview:
1. This product through the laser scattering principle, can detect 0.3um,
0.5um, 1.0um, 2.5um, 5.0um, 10um particle size dust quantity
concentration, temperature, humidity and AQI level of the detector.

2. With data recording 999 groups, 3.2-inch TFT full-color display,
automatic and manual measurement, real-time date and time,
rechargeable lithium battery or separate external USB power supply,
sensor life ≧8000 hours, data stability and other features
Applications in.
3. Electronics, optics, chemical, food, medicine and health, biological
products, aerospace and other industrial production Household,
public places, schools, agriculture Micro-pollution source detection.
Safety and Maintenance
1. Please do not place the instrument in a dusty or corrosive gas
environment, so as not to reduce the life of the instrument or
damage it.
2. When the battery icon of the display is empty or red, please charge it
in time, and remove the battery when it is not used for a long time.
3. Do not store or use the instrument in high temperature, high
humidity, flammable, explosive and strong electromagnetic field
environment.
4. Please use soft cloth and neutral cleaner to clean the shell, do not
use abrasive and solution to prevent corrosion of the shell and
damage instrument.

Function:
1. Display screen
2. Operation keys
3.USB interface
4.Airflow window ①
5. Label sticker
6. Battery compartment
7. Airflow window ②
8. Airflow window ③
Note: 1. Do not block the airflow window with objects when testing

Button function
Operation Description
Power on or off
Short press the button once to turn on or off the phone
Test Data
Short press the button once to set the PM2.5 value alarm, press the up, down,
left, and right keys to adjust the value change
Counting and weighting mode conversion
Short press the button once to switch ug/m3 or Piece/L mode
Temperature unit conversion
Short press the button once to switch °C/°F
Test mode：
Records or Setting
Set mode：Shifting or adding
Measurement mode: short
press to enter alarm value
setting
Setting mode: move up menu
Measureme
nt mode: short
press to enter alarm value
setting
Measurement mode: convert 6 types of
co
unts / 3 types of weight counting
Setting mode: shift or reduce data
ON/OFF
Test mode：
Turning the alarm tone on or off
Set mode
：
OK/Cancel Menu
Test mode：Convert
temperature units
Set mode：Move down menu

History search
Press the button 1 time and press Go to <Records>, left and
right keys to shift, up and down keys to modify the record page.
Parameter Setting
Press button 2 times and press When you enter <Setting>,
press the up and down keys to move to select the corresponding
parameter, the background color of the selected item becomes white,
and the left and right keys can modify the parameter.
Backlight settings
Left and right keys can switch brightness
25%-50%-75%-100%
Clear records
Left and right keys to enter the data clearing menu, press the left key
again to confirm clearing, right key to exit clearing.

Time modification
Left and right keys to enter the time setting menu, press left and right
keys again to shift, up and down keys to modify the parameters.
Press to confirm changes and return to the main settings menu.
Auto-off time
Left and right keys to select OFF (no auto-off) / 15 minutes / 30 minutes
/ 45 minutes / 1 hour / 2 hours / 4 hours / 8 hours.
Record interval
Left and right keys to enter, press up and down keys to select the
appropriate time interval.
Language setting
Left and right keys to switch Chinese/English.
Restore factory settings
Left and right keys can enter to restore the original factory parameter
settings, press the left key again to confirm the reset, and the right key
to exit the reset.

Technical Specification
Parameters Indicators
Unit Particle Measurement Range
0.3/0.5/1.0/2.5/5.0/10um
Counting efficiency
0%@0.3 um 98%@>=0.5 um
Effective amount of particulate matter
mass concentration
Program (PM2.5 standard value)
0~500Ug/m3
Particle mass concentration maximum
amount
Range (PM2.5 standard value)
≥1000 Ug/m3
Particle mass concentration resolution
1 Ug/m3
Accuracy ±10%@100~500 Ug/m3
±10 Ug/m3@0~100 Ug/m3
Operating temperature range
10~+60 ℃
Operating Humidity Range 0~99%
Storage Temperature Range
40~+80 ℃
Temperature measurement range
20~60℃
Temperature Measurement Accuracy
±1℃
Temperature Resolution
0 01℃
Humidity measurement range
0~100%RH
Temperature Accuracy
±2%RH
Humidity Resolution 0.01%RH
Power supply battery Built-in removable 3.7V/18650 cylindrical battery
or external 5V USB power supply
Operating Current 180mA
Battery life
＞
9hours
Charging time 3hours
Auto power off Settable (factory default 15 minutes auto
shutdown)
Record groups
999group
Weight
235g
Size
140*134*33mm

Analysis of common problems
Problems
The number and concentration of particulate matter in the air
quality.
Data is not accurate
Analysis
1. Particulate matter data has a certain spatial and temporal nature,
sampling do not in the air flow velocity fluctuations or particulate
matter changes obviously, if necessary, you can sample data multiple
times
2. No data display of the number of particles in the air and
concentration quality
Problems
Manual mode when not pressed sampling
Battery power is too low to start the sensor work
Temperature and humidity are not accurate
Analysis
1. Temperature and humidity sensor sampling window with debris, dirty

Problems
1. Ventilation window is blocked by something
2. Do not turn on
Analysis
1. The battery is dead or damaged, powered by USB socket, if you can
turn on and the upper right corner of the power grid has changed, is
the battery is dead, such as no change only shows OK icon. Indicates
that the battery has been damaged.
2. The battery +/- polarity is reversed, it should be noted that one end
of the battery without a protruding contact point is the "-" pole, and
the end with a protruding contact point is the "+" pole. Can refer to
the following chart