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E-mail
476592670@qq.com
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Phone
13375366215
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Address
Weifang Oulong Technology Park
Shandong Leiente Intelligent Technology Co., Ltd
476592670@qq.com
13375366215
Weifang Oulong Technology Park
1、 Product Overview:
Handheld water quality testing instrument brand domestically producedThe LD-S11 water quality detector from Leien Intelligent Technology is a device suitable for industrial wastewater, aquaculture, river monitoring, swimming venues, and other fields. It is equipped with rapid colorimetric detection reagents and can measure quickly, simply, accurately, and stably. With its exquisite appearance, simple operation interface, and accurate detection system, it helps users obtain fine data, analyze water conditions more accurately and effectively, prevent breeding risks in advance, and avoid losses in a timely manner.
2、 Application industry:
Suitable for pure water plants, waterworks, domestic sewage treatment plants, industrial wastewater, aquaculture, river monitoring, swimming venues, water source protection, production monitoring, scientific research experiments, etc.
3、 Detection principle:
Extract a certain amount of water sample, and after pre-treatment, drip the detection reagent according to the reagent instructions for different detection items. The detection reagent will react with the analyte in the water, and the reaction solution will present a specific color.
Handheld water quality testing instrument brand domestically producedBy using a white LED to irradiate the color developing solution, the sensor can obtain its tricolor value. Firstly, the tricolor value of the blank solution is detected, and then the tricolor value of the tested sample is detected. Based on the relationship between wavelength and color, the tricolor value is normalized according to the color after the reagent reaction. According to the absorbance formula A=lg (I0/I1), where I0 is the incident light intensity and I1 is the transmitted light intensity, the instrument can accurately calculate the concentration value of the detection item in the water based on the built-in standard curve and its corresponding absorbance (A).

4、 Instrument features:
1.PH、 Dissolved oxygen, ammonia nitrogen, nitrite, total alkalinity, hydrogen sulfide, salinity, phosphate, total hardness, water temperature, residual chlorine, detection indicators, etc
2. Android intelligent system operation is more convenient and fast
3. Built in operation process, simple operation, no need for training, direct hands-on experience
4. Fast detection speed, on-site data reading
5. Portable, small in size, light in weight, convenient for outdoor testing
6. Small and beautiful appearance, stable operation and maintenance free, with good cost-effectiveness
7. Imported cold light source is used, with stable optical performance and a lifespan of up to 100000 hours


5、 Testing items:
parameter name |
range |
according to the standard |
measurement method |
measurement error |
repetitiveness |
PH |
1-14 |
No |
test strip |
±1% |
±1% |
dissolved oxygen |
0~12 mg/L |
GB 7489-87 |
Colorimetric dish (10mm) |
≤10% |
≤2% |
ammonia nitrogen |
0~4mg/L |
HJ 586—2010 |
Colorimetric dish (10mm) |
≤5% |
≤2% |
nitrite |
0 ~2 mg/L |
GBT 7493-1987 |
Colorimetric dish (10mm) |
≤5% |
≤2% |
Total alkalinity |
0~500 mg/L |
literature |
titration |
≤5% |
≤2% |
hydrogen sulfide |
0~4 mg/L |
GB-T 16489-1996 |
Colorimetric dish (10mm) |
≤5% |
≤2% |
salinity |
1.00-1.060 |
No |
specific gravity |
0.001 |
0.002 |
phosphate |
0~2 mg/L |
GB11893-89 |
Colorimetric dish (10mm) |
≤5% |
≤2% |
Total Hardness |
GB7747-87 |
titration |
≤5% |
||
water temperature |
-50-85℃ |
No |
sensor |
±1% |
≤0.1 |
residual chlorine |
0~10 mg/L |
HJ586-2010 |
Colorimetric dish (10mm) |
≤5% |
≤2% |
6、 Parameter indicators:
detection method |
Photoelectric colorimetry |
test mode |
concentration |
wavelength range |
340~800nm |
system |
Android Intelligent Operating System |
wavelength selection |
automatic |
display screen |
3.5-inch color LCD screen |
error |
±3%FS |
Sensitivity (absorbance) |
0.001 |
Usage environment |
Relative humidity ranging from 0~50 ℃ to 90% |
data storage |
Over 80000 items |
communication |
Type-C、WIFI、 Bluetooth |
battery |
5600mAh lithium battery |
Continuous working hours |
12 hours |
power supply voltage |
5V/DC直流 |
size |
18cm*8cm |
weight |
700g |
Supported languages |
Simplified Chinese or English |
7、 Configuration List:
serial number |
unit |
1 |
Taiwan |
2 |
only |
3 |
only |
4 |
only |
5 |
only |
6 |
box |
7 |
plastic dropper |
6 |
filter paper |
1 |
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data cable |
1 |
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charger |
1 |