Digital Display Turbidity Instruments
Last Updated: April 1, 2025
Description
Digital Display Turbidity Instruments are devices designed to measure the turbidity of a liquid, which is the cloudiness or haziness caused by large numbers of individual particles. These instruments provide a digital readout of the turbidity level, allowing for precise monitoring and control of water quality.
Working Principle
Digital Display Turbidity Instruments operate by passing a light beam through a sample of the liquid. The amount of light scattered by the suspended particles in the liquid is measured by photodetectors. The degree of light scattering is directly proportional to the turbidity of the liquid. These instruments are useful because they provide a quantitative measure of water clarity, which is crucial for assessing water quality and ensuring safety in various applications.
Applications
Turbidity measurement is essential in several specific applications. In drinking water treatment, monitoring turbidity is critical as increased turbidity can lead to higher risks of gastrointestinal diseases. In environmental monitoring, turbidity affects aquatic life by reducing sunlight penetration, which is necessary for the growth of aquatic plants and fauna. Additionally, turbidity instruments are used in industrial processes, such as in the pharmaceutical and chemical industries, to ensure product quality and compliance with regulatory standards .
Advantages over other Mechanical - Shock and Vibration Control Equipment
Digital Display Turbidity Instruments offer advantages over mechanical shock and vibration control equipment by providing precise and real-time measurements of turbidity without the need for physical contact with the sample. This non-contact measurement reduces the risk of contamination and wear, ensuring more reliable and consistent readings over time .
Limitations
One limitation of Digital Display Turbidity Instruments is their dependency on the stability of the light source. For example, tungsten filament lamps, commonly used in these instruments, can suffer from burnout and require stable voltage to function accurately. Additionally, these instruments may require frequent recalibration to maintain accuracy, especially in environments with varying sample compositions .
Considerations
When considering the use of Digital Display Turbidity Instruments, several factors should be taken into account. Initial costs can vary depending on the complexity and features of the instrument. Operating expenses may include regular maintenance and calibration to ensure accuracy. Durability is a concern, particularly in harsh environments, where robust housing and non-contact optics can help maintain performance. Accuracy is critical, and regular calibration against known standards is necessary to ensure reliable measurements. Replacement and maintenance costs should also be considered, as components like light sources may need periodic replacement .
from PCE Instruments / PCE Americas Inc.
Inside the meter, there is an infrared LED light source with a wavelength of 850 nm. A photodiode positioned in a 90 ° angle to the measuring ray absorbs the light reflected by the particles in the dissolution. Diffused light or Nephelometric measuring methods are used for the lower measuring... [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 1000
- Water Quality Parameters: Turbidity
- Accuracy: 5
from ABB Measurement & Analytics
AV412 UV254 dual-channel, low- and high-range dissolved organics monitors are designed for use on potable water treatment plants. In particular, they can be used to monitor the quality of the outlet from sand and carbon filters to provide a THM precursor measurement. Long term field trials have... [See More]
- Display Type: Digital
- Form Factor: Panel; Wall, Pipe
- Water Quality Parameters: Turbidity
- User Controls: Digital Front Panel
from ABB Measurement & Analytics
The ATS430 is a compact, yet extremely robust turbidity sensor capable of measuring turbidity and total suspended solids (TSS) concentrations up to 4000 NTU or 100,000 mg/l. With a choice of hermetically-sealed stainless steel or titanium versions, each featuring scratch-resistant sapphire optical... [See More]
- Display Type: Digital
- Suspended Solids per Liquid Volume: 0 to 100000
- Water Quality Parameters: Suspended Solids; Turbidity
- Turbidity Range: 0.0 to 4000
from SWAN Analytical USA, INC.
Electronic transmitter/controller for the measurement of turbidity; for wall mounting. Measuring range: 0.000 to 200 FNU/NTU with a precision of +/- 0.003 FNU or 1% of reading. For the use with Swansensor Turbiwell. [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 200
- Water Quality Parameters: Turbidity
- Accuracy: 1
from Anton Paar
A solution for the measurement of turbidity in liquids, the HazeQC ME turbidity measuring module, is provided by Anton Paar as part of a modular measuring system. The approved ratio method with measurement at three angles (transmission 0 °, scattered light at 25 ° and 90 °) is used to... [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 400
- Water Quality Parameters: Turbidity
- Form Factor: Lab / Benchtop; In-situ / Field
from Hach
The TU5 Series platform employs a patented optical design that sees more of your sample than any other turbidimeter, delivering the best low level precision and sensitivity while minimizing variability between measurements. For the first time you will be able to remove uncertainty of which... [See More]
- Display Type: Digital
- Form Factor: Panel; Wall Mount
- Water Quality Parameters: Turbidity
from optek-Danulat, Inc.
The optek DT9011 is a precision, laboratory-quality turbidimeter. The DT9011 features an advanced, triple-beam, optical design, measuring forward scatter (11°), side scatter (90°), and direct (0°) light. [See More]
- Display Type: Digital
- Form Factor: Lab / Benchtop
- Water Quality Parameters: Turbidity
- User Controls: Digital Front Panel; Computer Interface
from Engineered Systems & Designs, Inc.
ABOUT ESD. All instruments are manufactured in the USA. Our modern facility and skilled staff guarantee the highest quality products. We strive to provide you with same-day response to all inquiries. We maintain an inventory that enables us to ship 95% of our product line within 24-48 hours. Every... [See More]
- Display Type: Digital
- Form Factor: Lab / Benchtop
- Water Quality Parameters: Turbidity
- User Controls: Manual Operation
from KROHNE Messtechnik
Reliable sludge blanket measurement via optical sensor. The sludge level meter OPTISYS SLM 2100 features an accurate and reliable profile measurement of the sedimentation tank using an optical sensor which travels through all layers of the tank reading suspended solids concentration at the different... [See More]
- Display Type: Digital
- Form Factor: In-situ / Field
- Water Quality Parameters: Turbidity
- Electrical Output: Analog Current
from Emerson Automation Solutions – Rosemount
The Model 56 Analyzer offers single or dual sensor input with an unrestricted choice of dual measurement combinations. The high resolution full-color display gives unsurpassed visibility and functionality for liquid analytical instrumentation. High resolution full-color screen: easily viewed process... [See More]
- Display Type: Digital
- Form Factor: Panel
- Water Quality Parameters: Turbidity
- User Controls: Digital Front Panel
from HF scientific
Designed to provide the accuracy demanded by today ’s scientist, the Micro100 Laboratory Turbidimeter is ready to meet the challenge. Features like the Auto Alert Calibration Prompt and the Quick Connection Lamp Module, allow for simple calibration and low maintenance. With a resolution of... [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 1000
- Water Quality Parameters: Turbidity
- Accuracy: 2
from OMEGA Engineering, Inc.
The TRH444 is a compact turbidity analysis instrument designed for precision measurement of turbidity. The meter is equipped with an advanced microprocessor that results in long-term stability over a wide range of operational conditions. With its low level precision and accuracy, the TRH444 meets... [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 1000
- Water Quality Parameters: Turbidity
- Accuracy: 0.0100
from Campbell Scientific, Inc.
The Archer-PCon is a portable data-collection tool for Campbell Scientific data-acquisition systems. It is an Archer Field PC with our PConnectCE datalogger-support software installed, plus the hardware needed to connect the archer to a Campbell datalogger. The Archer is ultrarugged, meaning you can... [See More]
- Display Type: Digital
- Form Factor: Hand Held ; In-situ / Field
- Water Quality Parameters: Turbidity
- User Controls: Digital Front Panel
from SWAN Analytical USA, INC.
High Precision Nephelometer complying with ISO 7027 (EN 27027, DIN 38404) for the continuous measurement of low level turbidity in pure and ultra pure water. Features. Range: 0.000 to 100.0 FNU with a precision of ± 0.001 FNU or 1% of reading. Programmable automatic zero point measurement for... [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 100
- Water Quality Parameters: Turbidity
- Accuracy: 1
from HF scientific
Designed to provide the accuracy demanded in today ’s laboratory, the Micro1000 Laboratory Ratio Turbidimeter is ready to meet the challenge. Features like the Auto Alert Calibration Prompt and the Quick Connection Lamp Module, allow for simple calibration and low maintenance. A full time... [See More]
- Display Type: Digital
- Turbidity Range: 0.0 to 10000
- Water Quality Parameters: Turbidity
- Accuracy: 2 to 10
from Campbell Scientific, Inc.
The Archer-OBS is a portable data-collection tool for use with Campbell Scientific's OBS-3A Turbidity and Temperature Monitoring System. It comes with Campbell's new OBS-Mobile software —versatile, easy-to-use software that allows the OBS-3A to communicate with the Archer. The Archer is... [See More]
- Display Type: Digital
- Form Factor: Hand Held ; In-situ / Field
- Water Quality Parameters: Turbidity
- User Controls: Digital Front Panel