Linshang LS310 Water Quality Tester User Manual
- August 29, 2024
- Linshang
Table of Contents
LS310 Water Quality Tester
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Specifications
-
Measurement Object: Tap water, purified water, bottled water,
ground water, surface water (non-sewage) and other drinking
water -
Measurement Parameters: COD (Chemical Oxygen Demand), TOC
(Total Organic Carbon), UV275 (Ultraviolet Absorption Value), TDS
(Total Dissolved Solids), Electrical conductivity, Temperature -
Measurement Range: COD(0-100mg/L), TOC(0-100mg/L),
UV275(0-1.0au/cm), TDS(0-2000ppm), Electrical
conductivity(0-4000us/cm), Temperature(0-50) -
Resolution: COD(0.01mg/L), TOC(0.01mg/L), UV275(0.001au/cm),
TDS(1ppm), Conductivity(1us/cm), Temperature(0.1) -
Accuracy: Display
-
Display: 240*135 1.14 inch TFT color screen
-
Power Supply: 2 AAA alkaline dry batteries
-
Size: 157 37 14mm
-
Weight: About 68g
-
Working Temperature Range: 0~50°C
-
Storage Temperature Range: -10~60°C, 85%RH no condensation
Features
-
The instrument simultaneously measures 6 parameters of water
quality for comprehensive evaluation. -
Color screen display with backlight indicating water quality
levels and providing a score. -
Ambient temperature compensation function for stable value and
long-term calibration. -
Small, portable, pen-like design for ease of use and
carry.
Operation
- Power on/off:
-
Power on: Short press button to turn on the
instrument. -
Power off: Long press button to shut down the
instrument. -
Calibration:
The instrument needs calibration when used for the first time or
after a long period of inactivity.
-
Long press button to enter calibration mode in measuring
mode. -
On the calibration interface, use buttons to select options and
confirm the selection. -
Insert the probe into pure water and press a button to start
calibration. -
If calibration fails, possible reasons include not placing the
instrument in pure water, contaminated probe, or light source
issues.
FAQ
Q: How often should I calibrate the LS310 Water
Quality Tester?
A: It is recommended to calibrate the tester
when using it for the first time and periodically as needed,
especially after a long period of inactivity or if you suspect
inaccurate readings.
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Shenzhen Linshang Technology Co., Ltd.
LS310 Water Quality Tester
User Manual V1.07
Please read this manual carefully before using and reserve it for reference.
2023/1/4 Page 1 of 10
I. Product Introduction
Shenzhen Linshang Technology Co., Ltd.
Water quality meter designed for use in applications such as tap water,
purified water and ground water. The instrument measures the drinking water’s
COD, TOC, and UV275 water quality parameters according to the ultraviolet
absorption spectrophotometry, and it measures the conductance between
electrodes to determine the water’s TDS and Electrical conductivity. The
instrument includes an intelligent scoring feature, and through the LCD
backlight color, it displays 4 degrees of water quality: fine, good, average,
and poor. The instrument contains a temperature correction feature that is
accurate and repeatable.
Standard for the product:
GB5749-2020 Standards for Drinking Water Quality
GB/T5750-2023 Standard Examination Methods for Drinking Water
JJG 821-2005 Verification Regulation of Total Organic Carbon Analyzer
JJG 376-2007 Verification Regulation of Electrolytic Conductivity Meters
II. Parameters
Tap water, purified water, bottled water, ground water, surface water
Measurement Object
(non-sewage) and other drinking water
Measurement parameters
COD (Chemical Oxygen Demand), TOC (Total Organic Carbon), UV275 (Ultraviolet Absorption Value), TDS (Total Dissolved Solids), Electrical conductivity, Temperature
COD(0-100mg/L), TOC(0-100mg/L), UV275(0-1.0au/cm), TDS(0-2000ppm), Measurement
Range
Electrical conductivity(0-4000us/cm), Temperature(0-50)
Resolution
COD(0.01mg/L), TOC(0.01mg/L), UV275(0.001au/cm), TDS(1ppm), Conductivity(1us/cm), Temperature(0.1)
Accuracy
COD: 0-5mg/L:±0.5mg/L; 5-100mg/L:±10%HH is the standard value TOC: 0-5mg/L: ±0.5mg/L; 5-100mg/L: ±10%H, H is the standard value UV275: 0-0.1au/cm: ±0.01au/cm; 0.1-1.0au/cm: ±10%H, H is the standard value TDS: 0-100ppm±5ppm100-2000ppm±5%H, H is the standard Electrical conductivity: 0-200us/cm±10us/cm200-4000us/cm±5%H,H is the standard
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Temperature: ±2
Shenzhen Linshang Technology Co., Ltd.
Display
240*135 1.14 inch TFT color screen
Power Supply
2 AAA alkaline dry batteries
Size
157 37 14mm
Weight
About68g
Working Temperature Range 0~50
Storage Temperature Range
-10~600~85%RHno condensation
III. Features
1. The instrument simultaneously measures 6 parameters of COD, TOC, UV275,
TDS, Electrical conductivity and Temperature to make a comprehensive
evaluation of the water quality.
2. The instrument uses a color screen display, which uses the color of the
backlight to indicate different water quality levels and provides a score.
3. The instrument has the function of ambient temperature compensation, the
value is stable, and it allows long-term calibration.
4. Small, portable, pen-like design that is simple to use and carry.
IV. Operation
1. Power on/off
Power on: Short press button, the version and the serial number of the instrument host and probe are displayed on the screen at the same time after powering on, and then the instrument will enter the measurement interface.
Power off: Long press the automatically shut down.
2. Calibration
button to shut down the tester or within 3 minutes no operation
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Shenzhen Linshang Technology Co., Ltd.
The instrument has to be calibrated when it is used for the first time or
after a lengthy period of inactivity.
Long press button to enter the calibration interface in measuring mode, On the
calibration interface,
short press
button to select the [Yes/No] option, and short press
button to confirm the selection.
At this time, insert the probe of the instrument into the pure water and short press
to start calibration.
After calibration is completed, it will prompt “Calibration successful!”, and exit to the measurement page.
If the calibration fails, the possible reasons are as follows: The instrument
has not been placed in pure water. The probe is contaminated, please rinse it
with clean water before calibrating. The attenuation of the light source makes
it unable to work normally, and needs to be returned to the
factory for inspection and maintenance
3. Measurement
Short press
to measure after inserting the instrument’s probe into the water sample to be tested.
Following the measurement, the water quality will be graded in accordance with the test results, and the display will show various backlight colors depending on the results: poor — red, general — yellow, good -green, excellent — blue. Scoring judgment:
TOC(mg/L)
0-1.25
COD(mg/L)
0-0.75
TDS(ppm)
0-250
Score
90-100
Judgment
Fine
Backlight color Blue
1.25-2.5 0.75-1.5 250-500 80-90 Good Green
2.5-5.0 1.5-3 500-1000 60-80 Average Yellow
5.0-12.5 3-7.5 1000-2000 <60 Poor Red
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Shenzhen Linshang Technology Co., Ltd.
4. Setup and Calibration
Press and hold the
button for 3 seconds in the off state to enter the Main Menu of the instrument
with three sub-options, press the button to confirm the selection.
briefly to select [Language, Calibration, Exit], short press the
Language: Short press
button to enter the language option and press
the right language, then press
button to confirm your selection.
button to select
Calibration: Short press the
button to enter the calibration interface, the function is the same
as long pressing the
in the measurement interface to enter the calibration interface.
Exit: Short press
button briefly to exit the main interface and enter the measurement interface.
V. Attentions
1. Corrosive liquids like beverages, tea, or sewage should not be utilized
with the device. 2. To prevent contaminating pure water during calibration,
the instrument must be cleaned of water
stains and dirt at the probe.
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Shenzhen Linshang Technology Co., Ltd.
3. The instrument must be calibrated with purified water (bottled purified
water is labeled “Purified Drinking Water”), and it is prohibited to calibrate
with mineral or natural drinking water.
4. After measuring the liquid out of the instrument, the residual liquid need
to be cleaned up at the probe to avoid mixing the two different liquids, which
might cause errors in the test results.
5. Use the temperature of 0-50 , such as beyond please calibrate before use,
extreme temperatures will cause permanent damage.
6. Do not use alcohol and other organic solutions to clean the contact probe,
as it will cause permanent damage.
7. When an instrument is used for the first time or has been inactive for a
while, it has to be calibrated.
8. The battery needs to be taken out when the instrument is not used for a
long time.
VI. Packing List
No.
Product Name
Quantity
Unit
1
Water Quality Meter
1
set
2
AAA alkaline battery
2
pcs
3
User Manual
1
pcs
4
Certificate / Warranty card
1
pcs
VII. Service
1. The gauge has one-year warranty. If the gauge works abnormally, please
send the whole gauge to our company for maintenance.
2. Provide users with spare parts and lifelong maintenance services. 3.
Provide the users with the gauge calibration service. Free technical support
for the long term.
Manufacturer: Shenzhen Linshang Technology Co., Ltd. Website:
www.linshangtech.com Service hotline: +86-755-86263411
Email: sales21@linshangtech.com
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References
Read User Manual Online (PDF format)
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