Product Details
KWS-5000 Dissolved CO2 Sensor in Water
Introduction
The KWS5000 is a gas detection module for detecting the
concentration of carbon dioxide in an aqueous solution. Patented
optical cavity, imported light source and dual channel detector for
spatial double reference compensation. KWS5000 has good
selectivity, anaerobic dependence and long life. It also has UART,
IIC digital output, analog voltage output and PWM frequency output
mode, which is convenient for customers to choose applications. The
KWS5000 provides customers with zero calibration, sensitivity
calibration and clean air calibration commands, and provides
customers with manually calibrated MCDL pins. The customer can
conveniently use the external free-flowing clean air to perform a
relative zero calibration of the sensor module. The KWS5000 uses a
convection-diffusion venting method and a protective cover to
accelerate the gas convection diffusion rate and protect the gas
permeable membrane. Removable construction for easy cleaning of the
sensor housing.
Feature
- Convective diffusion ventilation and protective cover
- Removable structure for easy cleaning of the sensor sleeve
- Realizing spatial double-channel reference compensation
- No oxygen dependence
- Long working life
Application
- Aquaculture
- Agricultural greenhouse environmental monitoring
- Biopharmaceutical Environmental Monitoring
- Water Quality Analysis
- Solution analysis
Technical Specifications
Item | Parameter |
Principle | NDIR infrared absorption |
Measuring range | 2000ppm/5000ppm/10000ppm |
Response time | 10 sec |
Accuracy | ±20ppm/±50ppm/±300ppm |
Protection level | IP68 |
Deepest depth | Underwater 60 meters |
Temperature range | 0 ~ 80°C |
Output | Support RS-485, MODBUS protocol |
Power supply | DC 5V |
Size | Φ27*104.8mm |
Probe cable length | Φ27*104.8mm |
Probe cable length | 10 m, customizable 5 m, 15 m and 30 m cable |
Cap life | 1 year |
Maximum working pressure | 1.5bar |
Product material | POM |
Dimensions
Signal interface definition
There is 3 kinds of signal output like below:
| | Signal definition |
SN | Wire color | UART+IIC interface | UART+485 interface | UART+4-20mA interface |
1 | Red | 5VDC | 12V | 12V |
2 | Black | GND | GND | GND |
3 | Green | Uart_RXD | Uart_RXD | Uart_RXD |
4 | Yellow | Uart_TXD | Uart_TXD | Uart_TXD |
5 | White | IIC_SDA | RS485A | 4-20mA(0.4-2V) output |
6 | Brown | IIC_SCL | RS485B | Reserved |
Order information
Tpye | Measure range | Signal | Protocol | Cable length | Description |
KWS5000 | | | Product type |
| 2000 | | 0-2000ppm accuracy±20ppm (default) |
5000 | 0-5000ppm accuracy±50ppm |
10000 | 0-10000ppm accuracy ±300ppm |
XXXX | customize range |
| 485 | | RS485 interface |
IIC | IIC interface |
Iout | 4-20mA current |
Vout | 0-5V Vout put |
PWM | PWM output |
| RTU (default) | | Modbus RTU Protocol |
ACSII | Modbus ASCII Protocol |
self defined | customized protocol |
| 0.5m (default) | customized |
KWS5000 | 2000 | 485 | RTU | 0.5 | |
Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.
We have been specializing in manufacturing pressure, level and flow
measuring instruments and related products for 10 years.
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.