In situ & Online Water Quality Monitor
The full-spectrum water quality monitor is a new generation of environmentally-friendly sensors introduced by Stalwart. Easy-to-install cost less, it can measure multi-parameters real-time, automated and transportable. The product adopts rod structure and open flow cell, equipped with automatic cleaning device, which can be directly immersed in water to realize in-situ on-line detection of water quality. The test process has no chemical reagents, less maintenance work and long instrument life span.
The instrument has data storage and wireless transmission function, adopts RS485 interface and Modbus protocol, and has low power consumption. There are 4 analog signal output ports (4-20mA) and a USB port, as well as relays that can trigger an alarm or control an external device.
New solution traditional reagent photoelectric colorimetric instrument requires regular replacement of reagents, long measurement time, high failure rate, and the need to build a station.1.1
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Sensor |
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Measuring Principle |
Ultraviolet visible light 200-720nm continuous spectrum |
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Measurement Parameter |
COD, turbidity |
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Measuring Optical distance (Optional between 1-35mm) |
1/5/10/35mm |
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Measurement Cycle |
1-600min（adjustable） |
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Measurement Range (customized) |
10-150mg/L COD (Optical distance: 10m） |
10-100NTU turbidity (Optical distance: 10m） |
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Measurement Accuracy |
±5% |
±5% |
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Repeatability |
5% |
5% |
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Zero-point Drift |
±2% |
±2% |
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Range Drift |
±2% |
±2% |
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Compensation Function |
Double beam automatic compensation, turbidity compensation |
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Automatic Cleaning |
Probe configuration for automatic cleaning, maintenance free (with air compressor and solenoid valve) |
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Shell Material |
Stainless steel or titanium (base on water quality and customer requirements) |
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Dimensions |
600mm*136mm |
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Weight |
12kg |
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Power Supply |
12VDC |
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Communication Method |
RS485 |
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Power Consumption |
12W |
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Correction |
Factory calibration / field correction (base on accuracy and customer requirements) |
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Protection level |
IP68 |
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Installation |
Various installation methods such as immersion and extraction bypass installation (base on customer requirements) |
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Storing Temp.℃ |
-20-40℃ |
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1.2
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Controller |
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Display |
Large screen dot matrix liquid crystal display |
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Communication Output |
NB-loT, WIFI, 4G |
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Data Storage |
32GB |
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Protection Level |
IP65 |
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Sensor Interface |
1 M12 industrial interface for connecting sensors |
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USB Interface |
Yes |
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Analog Output |
4-channel 4-20mA output |
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Relay Control |
4-way 24V 1A relay high and low point control |
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Power Supply |
220±10%VAC;50-60HZ |
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Cable Length |
Standard 10 meters, can be customized |
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Storage T℃ |
-20-40℃ |
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Warranty |
1 Year |
1.3
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Installation Condition |
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Protection Level |
IP68（Equipped with protective box） |
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Ambient T ℃ |
0-40℃ |
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Relative Humidity |
0-95%RH（Non-condensing） |
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Test Liquid Temp ℃ |
0~40℃ |
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Flow Rate Requirement |
＜3m/s |
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PH Range |
6-9 |
1.4
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Optical Path Selection Reference |
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OPTICAL DISTANCE （mm） |
PARAMETER |
UNIT |
MEASURING RANGE |
DETECTION LIMIT |
MEASURING LIMIT |
ACCURACY |
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1 |
COD |
mg/L |
40-800 |
40 |
50 |
COD≤80mg/L, Accuracy≤3mg/L, or COD＞80mg/L, Accuracy≤5% |
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Turbidity |
NTU |
40-800 |
40 |
50 |
Turbidity≤80NTU, Accuracy≤2NTU, or Turbidity>80NTU, Accuracy≤5% |
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5 |
COD |
mg/L |
8-250 |
8 |
15 |
COD≤60mg/L, Accuracy≤3mg/L, or COD＞60mg/L, Accuracy≤5% |
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Turbidity |
NTU |
8-180 |
8 |
15 |
Turbidity≤40NTU, Accuracy≤2NTU, or Turbidity＞40NTU, Accuracy≤5% |
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10 |
COD |
mg/L |
5-140 |
4 |
10 |
COD≤30mg/L, Accuracy≤3mg/L, or COD＞30mg/L, Accuracy≤5% |
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Turbidity |
NTU |
5-100 |
5 |
10 |
Turbidity≤20NTU, Accuracy≤2NTU, or Turbidity＞20NTU, Accuracy≤5% |
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35 |
COD |
mg/L |
1-60 |
1 |
3 |
COD≤10mg/L, Accuracy≤3mg/L, or COD＞10mg/L, Accuracy≤5% |
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Turbidity |
NTU |
2-40 |
2 |
5 |
Turbidity≤10NTU, Accuracy≤2NTU, or Turbidity＞10NTU, Accuracy≤5% |
SVM-2000 Brochure