Downlook Ultrasonic Sensor | Hach 900 MAX specs

Section 4 Sensor Setup

4.1 Downlook Ultrasonic Sensor

4.1.1 Downlook Ultrasonic Sensor Connection

The downlook ultrasonic sensor connection is located on the back side of the refrigerated cabinet. The gray rectangular box houses the ultrasonic module and the transducer connector labeled ULTRASONIC. The connector is keyed and can only be inserted in the proper orientation (key up).

4.1.2 Downlook Ultrasonic Sensor Programming

The downlook ultrasonic sensor does not require specific programming, unless more than one sensor option is connected to the sampler. When more than one sensor option is connected to the sampler:

1.From the Main Menu, select OPTIONS>LEVEL SENSOR.

2.Select Ultra-Sonic using the CHANGE CHOICE key. Press ACCEPT.

4.1.3Downlook Ultrasonic Sensor Calibration

4.1.3.1 Liquid Depth

Note: Always re-check the

Level Adjust when re-installing the flow meter.

Calibrate the current water level via one of two methods; Liquid Depth or Sensor Height. An Invisible Range can also be set which allows the transducer to ignore reflections from obstructions between the sensor and the water surface, such as ladder rungs, channel side walls, etc. Each method has its own advantages and disadvantages; selecting the proper method will depend upon the site conditions. Calibrate the ultrasonic sensor each time the sensor is installed at a new site.

This method requires the level or depth of liquid in the channel that is contributing to flow. In a round pipe, the entire depth typically contributes to flow. In a weir, only the depth that is flow over the weir plate contributes to flow. Level Depth calibration is primarily used when:

•Access is available to the primary device for a physical measurement of the liquid depth, and

•When water is flowing during installation (channel is not dry).

1.From the Main Menu, select OPTIONS>ADVANCED

OPTIONS>CALIBRATION>ULTRASONIC SENSOR.

2.Select Calibrate U-Sonic using the UP and DOWN keys. Press SELECT.

3.Select Standard as the type of Ultrasonic Transducer using the CHANGE CHOICE key. Press ACCEPT to continue.

Temperature Time Constant

The speed of sound in air varies with the temperature of the air. The ultrasonic sensor is equipped with temperature compensation to help eliminate the effect of temperature variation under normal site conditions. The transducer must be equal to the ambient air temperature at the site prior to calibration for optimum results. The manufacturer recommends that sensors be shielded from direct sunlight for this reason.

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900 MAX specifications

The Hach 900 MAX is an advanced analytical instrument designed to perform water quality analysis with precision and efficiency. This multiparameter water quality analyzer is tailored for a wide range of applications, including environmental monitoring, wastewater treatment, and industrial processes. Its unique design and technology make it a valuable tool for professionals in the field.

One of the standout features of the Hach 900 MAX is its ability to measure multiple parameters simultaneously. Equipped with advanced sensors, the device can analyze key water quality indicators such as pH, turbidity, dissolved oxygen, conductivity, and various chemical parameters. This comprehensive measurement capability allows users to gain a complete understanding of water quality in a single run, saving both time and resources.

The Hach 900 MAX utilizes cutting-edge technologies to provide accurate and reliable results. Its integrated optical sensors employ advanced photometry, which enhances the detection of chemicals in water samples with high sensitivity. Additionally, the device includes advanced calibration management tools that ensure consistent accuracy over time. Users can easily perform routine calibrations with minimal effort, facilitating reliable data collection.

Another notable characteristic of the Hach 900 MAX is its user-friendly interface. The instrument features a large, touchscreen display that allows for intuitive navigation through various settings and parameters. Users can quickly access real-time data, generate reports, and analyze trends using the built-in software. The ability to customize dashboards and create visual representations of data enhances user experience and simplifies the decision-making process.

In addition to its analytical capabilities, the Hach 900 MAX emphasizes connectivity and data management. The instrument can be connected to laboratory information management systems (LIMS) and other data networks, enabling smooth data transfer and integration into existing workflows. This connectivity enhances collaboration among team members and facilitates compliance with regulatory requirements.

Durability is another hallmark of the Hach 900 MAX. The device is designed for use in demanding environments, with robust construction and protection against dust and moisture. This reliability ensures that the analyzer remains operational even in challenging conditions, making it suitable for field applications.

Overall, the Hach 900 MAX stands out as a powerful and versatile tool in the realm of water quality analysis. With its multiparameter measurement capabilities, advanced sensor technologies, user-friendly interface, and reliable performance, it enables professionals to obtain accurate insights into water quality efficiently. As environmental concerns continue to grow, instruments like the Hach 900 MAX play a crucial role in ensuring the safety and sustainability of water resources.

Hach 900 MAX Downlook Ultrasonic Sensor Connection, Downlook Ultrasonic Sensor Programming

Models: 900 MAX

Section 4

Sensor Setup