ZW-PH101 Water Quality Sensor Module
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Specifications
- Model: ZW-PH101
- Working Voltage: 12V (DC)
- Power Consumption: 1
- Temperature Range: –
- Output Mode: Digital signal output
- Output Linearity: Linear
- Response Time: –
- Detection Temperature Range: –
Product Information
The ZW-PH101 water quality sensor module is a universal module
that uses electrochemical principles to detect the H+ content in
water. It offers good selectivity and stability with low power
consumption, high accuracy, linear output, easy calibration, and
excellent stability. The sensor is designed for easy use with
digital signal output.
Applications
The ZW-PH101 sensor module is widely used for water quality pH
detection in various fields including laboratory research, water
plant water supply, waste-water treatment, aquaculture, and
farmland irrigation.
Usage Instructions
- Connect the ZW-PH101 sensor module to a 12V DC power
source. - Ensure proper calibration of the sensor for accurate
readings. - Place the sensor in the water sample to detect the H+
content. - Read and interpret the digital signal output for pH
values. - After usage, clean and store the sensor module properly.
Precautions
For any inquiries or assistance, contact Zhengzhou Winsen
Electronics Technology Co., Ltd at Tel: +86-371-67169097/67169670
or Email: sales@winsensor.com.
FAQ
Q: What is the working voltage of the ZW-PH101 sensor
module?
A: The working voltage is 12V (DC).
Q: In which fields can the ZW-PH101 sensor module be used?
A: The sensor module can be used in laboratory research, water
plant water supply, waste-water treatment, aquaculture, and
farmland irrigation.
Q: How should I calibrate the ZW-PH101 sensor module?
A: Calibration instructions are provided in the user manual.
Follow the recommended calibration procedures for accurate
readings.
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PH Water Quality Sensor Module
(ModelZW-PH101)
Manual
Version1.2 Valid From2021-12-16
Zhengzhou Winsen Electronic Technology Co., Ltd
Statement
This manual copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without the written permission, any part of this manual shall not be copied, translated, stored in database or retrieval system, also can’t spread through electronic, copying, record ways. Thanks for purchasing our product. In order to let customers use it better and reduce the faults caused by misuse, please read the manual carefully and operate it correctly in accordance with the instructions. If users disobey the terms or remove, disassemble, change the components inside of the sensor, we shall not be responsible for the loss. The specific such as color, appearance, sizes &etc, please in kind prevail. We are devoting ourselves to products development and technical innovation, so we reserve the right to improve the products without notice. Please confirm it is the valid version before using this manual. At the same time, users’ comments on optimized using way are welcome. Please keep the manual properly, in order to get help if you have questions during the usage in the future.
Zhengzhou Winsen Electronics Technology CO., LTD
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
ZW-PH101 water quality sensor module
Profile
The ZW-PH101 water quality sensor module is a universal module that uses electrochemical principles to detect the H + content in water, with good selectivity and stability. Using the digital signal output, very easy to use. ZW-PH101 is designed and manufactured with mature electrochemical detection technology closely combined with sophisticated circuit design.
Sensor characteristics
Low power consumption, high accuracy ,linear output, easy calibration and excellent stability.
Main application
It is widely used for water quality pH detection in laboratory research, water plant water supply, waste-water treatment, aquaculture, farmland irrigation and other fields.
Technical indicators
Items Working voltage
Consumption Temperature range
Output mode Output linearity Response time Detection Temperature range
Parameter 12V(DC) <25mW 0-50 RS4855V Linear
30S 0-50
Items Measure range Resolution ratio
Size Response time Output linearity
Service life Working current
Parameter 0-14
0.02pH 40×25mm
30 s Linear 3 years <5mA
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading sensing solutions supplier in China!
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
Stable 2. Pin definition
Note: The tolerance range is ± 0.2mm Fig1. Sensor Structure
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7 PIN8
VCC GND
A B GND RXD3V TTL level TXD3V TTL level) level +5V
Fig2. Module Pins
Sensor linearity
The sensor be placed in standard pH buffer: pH4.01, pH 6.86 and pH 9.18 to record the output of the module as shown in the figure below.
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading sensing solutions supplier in China!
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
Y=0.99759x-0.01725 R2=0.99
Fig3. Linear sensor curve
Communication Protocol 1.General settings
Baud rate Data byte Stop byte
Check
9600 8 1
Null
2.General command
Host-computer software send format
Integer
Type 16 byte
Instructions Indicates that high and low bytes are not reversed
Note For example :0x 0032 turn into the decimal number is 50
Function code specification 03 06 16
Read single or multiple registers Write a single register Write multiple registers
Read the current concentration value sending format
Module
address
FC
start address
Number of registers
CRC16
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Email: sales@winsensor.com
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Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
Device 1
0X01
0X03
High byte 0X00
Low byte 0X30
High byte 0X00
Low byte 0X01
Low byte 0X84
High byte 0X05
Reply format
Measurement value return
Module address
0X01
FC 0X03
Byte number 0X02
Reading concentration (Hexadecimal integer ) High byte Low byte
0X04
0X74
CRC16
Low byte 0XBA
High byte 0XA3
Write the device address sending format
Device ID
FC
address
Device 1
0XFE
0X06
Register initial address
High byte 0X00
Low byte 0X12
Write Equipment
address (The HEX
integer)
High Low byte
byte
0X00
0X01
CRC16
Low byte 0XFC
High byte 0X00
Reply format Device 1
Module address
0X01
Function Code
0X06
Register initial address
High Low byte byte 0X00 0X12
Equipment address
(Hexadecimal integer )
High byte Low
byte
0X00
0X01
CRC16
Low byte 0XE8
High byte 0X0F
The calibration of the sensor
Device ID
FC
address
pH4.01 pH6.86 pH9.18
0X01 0X01 0X01
0X06 0X06 0X06
Register address
High byte 0X00 0X00 0X00
Low byte
0X32 0X33 0X34
Write zero point
concentration value
(The HEX integer)
High Low byte
byte
0X01
0X91
0X02
0XAE
0X03
0X96
CRC16
Low byte 0XE8 0XF9 0X48
High byte 0X39 0X19 0X9A
3.Check and calculation
/*******************************************************************************
Namecrc16 verification
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading sensing solutions supplier in China!
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
Functioncrc16 verification Enter(byte pointer )*ptr(data lenth) len Return(double byte) crc ********************************************************************************/ uint16_t getCRC16_485(volatile unsigned char* ptr, unsigned char len) {
unsigned char i; uint16_t crc = 0xFFFF; while (len–) {
crc ^= *ptr; for (i = 0; i < 8; i++) {
if (crc & 1) {
crc >>= 1; crc ^= 0xA001; } else { crc >>= 1; } } ptr++; } return(crc); }
Precautions
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading sensing solutions supplier in China!
Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
1. The module shall avoid contact with organic solvents, coatings, agents and oils. 2. Do not apply the module to systems involving personal safety. 3. Do not install the module in a strong air convection environment. 4. The module shall not withstand excessive impact or vibration, and can not shake during use, otherwise the value returned will be inaccurate. 5. Please supply the module in strict accordance with the power supply voltage of the module. The voltage exceeding 12V will lead to irreversible damage to the module. 6. Do not place the module in a strong air convection environment. 7. Do not place the module in a high concentration of organic gas for a long time.
Zhengzhou Winsen Electronics Technology Co., Ltd Add: No.299, Jinsuo Road, National Hi-Tech Zone,
Zhengzhou 450001 China Tel: +86-371-67169097/67169670 Fax: +86-371-60932988 E-mail: sales@winsensor.com Website: www.winsen-sensor.com
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading sensing solutions supplier in China!
Documents / Resources
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Winsen ZW-PH101 Water Quality Sensor Module [pdf] User Guide ZW-PH101, ZW-PH101 Water Quality Sensor Module, ZW-PH101, Water Quality Sensor Module, Sensor Module, Module |