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During Immersion Installation 

 

During installation procedure, there will be frequent dirt on electrode, clean it regularly. 

 

Measuring value is not stable.  

 

Different insertion depths affects the measured value. 

 

The position of the electrode must be above the sediment. 

Electrode Communication 

Default Communication Instructions: 

 

 

Data starting at 0x represents hexadecimal. 

 

The check code is 16CRC, the low byte is in the front and the high byte is in the back. 

 

Floating point number occupy four bytes. 

Communication Description (Factory Default): 

Host Computer Transmission Format: 

Function Code Description: 

 

This product supports 03,06,16 and other common function codes. 

 

The output register uses 16 function codes when writing double word data or writing 
multiple data in batches.

 

 

Baud Rate 

9600 (Default) 

Data Bit 

Stop Bit 

Check Bit 

No 

Address 

1 (Default) 

 

Data Type  Description  

Remarks 

 

Integer 

16-Bit 

Integer 

The high-low bytes of word 

component are not reversed  

Ex: O x 0032 to decimal  

number is 50  

Floating 

Point 

Number 

(CDAB) 

3412 

The high-low word of the 

double-byte component is  

reversed, but the high-low 

byte of the word is not  

reversed.  

Example: 72 37 41 DB transfer to 

floating point number.  

CDAB change order is ABCD. 

Eg: 41 DB 72 37 transfer to floating 

point is 27.4  

03 

Read single or multiple registers 

06 

Write single register 

16 

Write multiple registers 

Summary of Contents for SRWQ100-YL105-9001

Page 1: ...ongevity please take a moment to familiarize yourself with this manual before powering the device Please keep it handy for future reference In case of any questions regarding the installation or use o...

Page 2: ...Make sure no bubbles are present in membrane head for accurate results Extension cutting joint and forcefully pulling signal line may cause inaccurate results Electrode Wiring Please follow the instru...

Page 3: ...is replaced every 18 to 24 months Follow the below procedure to replace the membrane head and add electrolyte Disconnect the power supply Turn the membrane head counter clockwise Remove the membrane...

Page 4: ...re shipment user can directly use it Online monitoring of the measured medium should keep a constant flow rate range 15 30 L h The calibration of dissolved oxygen electrode is performed by zero oxygen...

Page 5: ...ion Code Description This product supports 03 06 16 and other common function codes The output register uses 16 function codes when writing double word data or writing multiple data in batches Baud Ra...

Page 6: ...37 0x41 0xDB 0x8E 0x20 Slave Computer Response Format Note 72 37 41 DB transfer to floating point number CDAB change order is ABCD i e 41 DB 72 37 transfer to floating point is 27 4 Read Integer Host...

Page 7: ...omputer Transmission Format Slave Computer Response Format Note Change the local computer address 1 to address 2 and write the hexadecimal number 0X00 02 into register 0X00 19 ID Address Function Code...

Page 8: ...nt data to the 0x24 register Floating point 1 0 to hexadecimal number is 3F800000 high and low transposition is 00003F80 Send command 0110 00 24 00 02 04 00 00 3F 80 E0 14 The First Point Zero Calibra...

Page 9: ...00 12 Floating Point 2 Adjust measurement Temperature Offset 0x 00 14 Floating Point 2 Adjust temperature value Damping Coefficient 0x 00 16 Integer 1 0 10 Device Address 0x 00 19 Integer 1 1 255 Bau...

Page 10: ...6 Write upper limit of measurement 01 10 00 0A 00 02 04 00 00 41 20 42 58 01 10 00 0A 00 02 61 CA The upper measurement limit is set to 10 00 7 Write lower limit of measurement 01 10 00 0C 00 02 04 0...

Page 11: ...regularly Be careful while disassembling and rinsing the chlorine membrane Do not wipe chlorine membrane on the electrode with filter paper or sandpaper If the membrane head is fouled and clogged the...

Page 12: ...Modbus master device set tings and verify that the Modbus master device parity check is set to None Rs232 or RS485 cable is faulty Replace repair cables No network offsets and terminations or network...

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