ICON ProCon TB550 Series Turbidity Sensor User Manual
- July 2, 2024
- Icon
Table of Contents
ICON ProCon TB550 Series Turbidity Sensor
Product Introduction
The turbidity sensor is based on infrared scattered light technology .The infrared light emitted by the light source will be scattered when it passes through the sample under test during transmission. The intensity of the scattered light is directly proportional to the turbidity.
The turbidity sensor is equipped with a scattered light receiver in a 90° direction. The turbidity value is obtained by analyzing the intensity of the scattered light. It can be widely used for turbidity monitoring in sewage plants, water plants, water stations, surface water and other industrial applications.
Technical Specifications
| Sensor Model No. | TB550 |
|---|---|
| Power Supply | 9-36VDC |
| Accuracy | ±5% of Measured Value |
| Pressure Range | ≤43.5Psi |
| Working Temperature | 32 – 113oF |
| Measurement Range | 0.01-4000NTU |
| Output | MODBUS RS485 |
| Resolution | 0.001 |
| Response Time | 6s < 90s < 300s (Adjustable) |
| Waterproof Grade | IP68 |
| Housing Material | SS316L, POM |
| Connection | 3/4″ NPT |
| Cable Length | 10m |
| Installation | Immersed |
Installation
Immerse the sensor into the sample and ensure that the tip is fully installed so as to avoid the sensor head being affected by air bubbles.
Calibration
The turbidity sensor has been calibrated before leaving the factory. Self-
calibration is rarely required. If calibration is necessary, please see the
standard liquid that is required for suspension concentration calibration. The
specific configuration is as follows.
Preparation Method (Turbidity Standard Liquid 200mL 4000NTU) :
| Serial No. | Material | Ammonium Chloride |
|---|---|---|
| A | Hydrazine Sulfate, N2H6SO4 (GR) | 5.00g |
| B | Methenamine, C6H12N4 (AR) | 50.00g |
- Accurately weigh 5.000g of Hydrazine Sulfate (GR) and dissolve it in zero turbidity water. The solution is then transferred to a 500ml volumetric flask, diluted to scale, shaken and filtered (filtered with 0.2μm aperture, same below).
- Accurately weigh 50.000g of Methenamine (AR), dissolve it in zero turbidity water and transfer it into a 500ml volumetric flask, dilute to scale, shake well.
- Preparation of 4000NTU Formazine Standard Solution: Transfer 100ml of each of the above two solutions into a 200ml volumetric flask which is placed in a 25 ± 1°C incubator or constant temperature water bath. Let stand for 24 hours to make 4000NTU standard solution.
Turbidity Standard Solution
The total preparation volume was 200ml.
No.| Concentration (NTU)| 400NTU Absorb Quantity (ml)|
4000NTU Absorb Quantity (ml)
---|---|---|---
1| 10| 2.5| –
2| 100| 2.5| 2.5
3| 400| –| 10
4| 700| –| 17.5
5| 1000| –| 25
*Formulation Formula: A=KB/C**
- A: Absorb quantity (ml)
- B: Concentration of the solution required to be formulated (NTU)
- C: Proto-standard liquid concentration (NTU)
- K: Total amount of preparation (ml)
Example: 10 NTU turbidity standard solution configuration method
Dissolve 2.5ml (The concentration was 400 NTU) solution transfer to a 100ml
volumetric flask, add deionized water or distilled water and dilute to a 100ml
scale line, shake well and use to measure.
Sensor Calibration
Sensor Read
Connect the digital turbidity sensor to the computer through the Modbus RS
485, and open the Modbus debugging software: mbpoll.exe, Set the address
1,9600, N, 8,1, then select “Float” at “Display”, as shown in the figure
below; where 00002 shows the temperature value, that is, the ambient
temperature of the turbidity sensor is 14.5oC, 00004 shows the turbidity
value, where the aqueous solution in which the turbidity sensor is located is
20.7 NTU.
Manual Start Brush
As shown in the figure below, after connecting the turbidity sensor, select 06
function code in the communication software, Address input: 20, Value input
66, click Send, to observe the sensor brush start.
Set Up Brush Time
As shown in the figure below, after connecting the turbidity sensor, select 06
function code in the communication software, Address input: 21, Value input
30, click Send, and the wiper of the sensor will start every 30 minutes. If
you do not require the wiper, an input of 0 needs to be entered in the Value
line.
Read the Automatic Brush Time
As shown in the figure below, after connecting the turbidity sensor, select
Display in the communication software and select Signed (integer), and the
communication address 11 displays 30, indicating that the sensor starts the
scraping every 30 minutes.
Sensor Calibration
Connect the turbidity sensor to the computer. Select “Setup- -Poll
Definition”, then select 03 function code, Address: 100, Length: 60. Prepare
the known concentration of the standard solution, stir well,. Place the
turbidity sensor and double-click the calibration point address on the
computer to view the dialog box. Input the standard liquid value. After
confirming the sensor will begin to automatically calibrate, the calibration
result is the corresponding voltage address bit data. The calibra-tion is
complete after 10s voltage stabilization.
Example : To calibrate the turbidity sensor of range 0-400 NTU, the calibration solution prepared is 250 NTU. Select the 06 function code, Address input is 00138, that is, the 9th calibration point, then enter 250 in the Value. After the voltage value of the 00150 is stable, the calibration is completed.
Change Sensor Address
After connecting the sensor and MODBUS software, select “06” function code,
enter “17” in “Address”, “Value” in “2” or the mailing address to be modified,
click “Send”, a popup shows “Response OK”, indicating the sensor address
modification is completed. Without knowing the sensor communication address,
the sensor can be read using the broadcast address 255.
Read Instruction Parsing
The communication protocol adopts MODBUS (RTU) protocol. The communication
content and address can be changed according to the customer’s needs.
The default configuration is network address 01, port rate 9600, no check, a
stop bit. Users can set the change;
Function code 04 instruction for example:
- Temperature value =14.8ºC, Turbidity value=17.0NTU;
- Host sent: FF 04 00 00 00 08 XX XX
- Slave reply: FF 04 10 00 00 00 00 3E 8A 41 6D F9 6B 41 87 9C 00 44 5E XX XX
Explanation
- [FF] Represents the sensor address address
- [04] Represents function code 04
- [10] Represents have 16 bytes of data
- [3E 8A 41 6D]=14.8; | Temp. value; parsing order:41 6D 3E 8A
- [09 18 41 88]=17.0; | Turbidity value; parsing order:41 88 09 18
- [XX XX] Represents the CRC 16 check code.
Restore Factory Calibration
If the digital turbidity sensor calibration is wrong during the calibration
process, select “06” function code, enter “200” in “Address” , “60” in “Value”
, click “Send”. A pop-up display “Response OK” appears.
Sensor Wiring
| Color | Description |
|---|---|
| Red | +VDC |
| Black | -VDC |
| Green | RS485A |
| White | RS485B |
Maintenance
In order to obtain the best measurement results, regular maintenance is required. Maintenance mainly includes the sensor cleaning, check whether the sensor is damaged. The associated state of the sensor can also be viewed during maintenance and detection.
Sensor Cleaning
The two lenses on the sensor need to be cleaned. Please make regular cleaning
and maintenance according to the actual use situation to ensure the accuracy
of measurement. When cleaning, first rinse with clean water, and then use
detergent & cloth to wipe inorder to remove stubborn stains.
Inspection of Sensor Damage
Check the appearance of the sensor. If there is any damage, contact ICON at
905-469-7283 to replace it in time to
prevent the fault caused by water filling of the sensor due to damage.
Communication Protocol
The sensor is equipped with MODBUS RS485 communication function.
Sensor Read Address | Funciton Code 04 | Communication Configuration: 9600 N 8 1
Add| Items| Value| Authority| Type| Description
0| Reserved| | | |
2| Temperature| | Read-Only| Single Float|
4| Turbidity| | Read-Only| Single Float|
Sensor Calibration Address | Function Code 03
Add| Items| Value| Authority| Type| Range
11
|
Brush Time
|
0
|
Read-Write
|
Integer
| 1 – 10080 |
Unit : Min
17| Address| 1| Read-Write| Integer| 1 – 254
20| Manual Brush| 0| Write-Only| Signed| Send 66
21
|
Automatic Brush
|
0
|
Write-Only
|
Signed
|
1 – 10080 |
Unit : Min
Sensor Calibration Address | Function Code 0x03 Read | Function code 0x10 Fix
Add| Items| Range| Authority| Type|
100| First Calibration Point|
According to the Range
| Read-Write| Single Float|
102| Fifth Calibration Point| Read-Write| Single Float|
104| Eighth Calibration Point| Read-Write| Single Float|
106| Tenth Calibration Point| Read-Write| Single Float|
108| First Voltage| | Read-Write| Single Float|
110| Fifth Voltage A| | Read-Write| Single Float|
112| Fifth Voltage B| | Read-Write| Single Float|
114| Eighth Voltage A| | Read-Write| Single Float|
116| Eighth Voltage B| | Read-Write| Single Float|
118| The Tenth Voltage| | Read-Write| Single Float|
120| Dynamic Correction| 0.000| Read-Write| Single Float|
122| Linear Compensation| 1.000| Read-Write| Single Float|
124| Temperature Correction| 0.000| Read-Write| Single Float|
126| Temperature Setting| 25.0| Read-Write| Single Float|
128| Second Calibration Point| | Read-Write| Single Float|
130| Third Calibration Point| | Read-Write| Single Float|
132| Fourth Calibration Point| | Read-Write| Single Float|
134| Sixth Calibration Point| | Read-Write| Single Float|
136| Seventh Calibration Point| | Read-Write| Single Float|
138| Ninth Calibration Point| | Read-Write| Single Float|
140| Second Voltage| | Read-Write| Single Float|
142| Third Voltage| | Read-Write| Single Float|
144| Fourth Voltage| | Read-Write| Single Float|
146| Sixth Voltage| | Read-Write| Single Float|
148| Seventh Voltage| | Read-Write| Single Float|
150| Ninth Voltage| | Read-Write| Single Float|
200
|
Factory Calibration
|
60
|
Write-Only
|
Integer
| Only Calibration Values are Restored
Warranty, Returns and Limitations
Warranty
Icon Process Controls Ltd warrants to the original purchaser of its products
that such products will be free from defects in material and workmanship under
normal use and service in accordance with instructions furnished by Icon
Process Controls Ltd for a period of one year from the date of sale of such
products. Icon Process Controls Ltd obligation under this warranty is solely
and exclusively limited to the repair or replacement, at Icon Process Controls
Ltd option, of the products or components, which Icon Process Controls Ltd
examination determines to its satisfaction to be defective in material or
workmanship within the warranty period. Icon Process Controls Ltd must be
notified pursuant to the instructions below of any claim under this warranty
within thirty (30) days of any claimed lack of conformity of the product. Any
product repaired under this warranty will be warranted only for the remainder
of the original warranty period. Any product provided as a replacement under
this warranty will be warranted for the one year from the date of replacement.
Returns
Products cannot be returned to Icon Process Controls Ltd without prior
authorization. To return a product that is thought to be defective, go to
www.iconprocon.com, and submit a customer return (MRA) request form and follow
the instructions therein. All warranty and non-warranty product returns to
Icon Process Controls Ltd must be shipped prepaid and insured. Icon Process
Controls Ltd will not be responsible for any products lost or damaged in
shipment.
Limitations
This warranty does not apply to products which: 1) are beyond the warranty
period or are products for which the original purchaser does not follow the
warranty procedures outlined above; 2) have been subjected to electrical,
mechanical or chemical damage due to improper, accidental or negligent use; 3)
have been modified or altered; 4) anyone other than service personnel
authorized by Icon Process Controls Ltd have attempted to repair; 5) have been
involved in accidents or natural disasters; or 6) are damaged during return
shipment to Icon Process Controls Ltd reserves the right to unilaterally waive
this warranty and dispose of any product returned to Icon Process Controls Ltd
where: 1) there is evidence of a potentially hazardous material present with
the product; or 2) the product has remained unclaimed at Icon Process Controls
Ltd for more than 30 days after Icon Process Controls Ltd has dutifully
requested disposition. This warranty contains the sole express warranty made
by Icon Process Controls Ltd in connection with its products. ALL IMPLIED
WARRANTIES, INCLUDING WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY DISCLAIMED. The remedies
of repair or replacement as stated above are the exclusive remedies for the
breach of this warranty. IN NO EVENT SHALL Icon Process Controls Ltd BE LIABLE
FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND INCLUDING PERSONAL OR
REAL PROPERTY OR FOR INJURY TO ANY PERSON. THIS WARRANTY CONSTITUTES THE
FINAL, COMPLETE AND EXCLUSIVE STATEMENT OF WARRANTY TERMS AND NO PERSON IS
AUTHORIZED TO MAKE ANY OTHER WARRANTIES OR REPRESENTATIONS ON BEHALF OF Icon
Process Controls Ltd. This warranty will be interpreted pursuant to the laws
of the province of Ontario, Canada.
If any portion of this warranty is held to be invalid or unenforceable for any reason, such finding will not invalidate any other provision of this warranty.
For additional product documentation and technical support visit:
www.iconprocon.com | e-mail:
sales@iconprocon.com or
support@iconprocon.com | Ph: 905.469.9283
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