Section 4

Note: Always check the Level Adjust when reinstalling the sampler following a calibration. (See Keypad Description on page 16.)

3.Place the sensor face up in the bucket or liquid. Tap lightly to remove air bubbles. If these bubbles are not removed you can receive false readings from the sensor during calibration (Figure 17).

4.Place the sensor face down under at least 16 cm (6 in.) of water and wait 20 seconds. Make sure the water surface is calm and the sensor is stable.

5.Press any key to continue.

6.Measure the depth from the bottom of the bucket to the surface of the water and enter the value using the numeric keypad (Figure 17).

7.Press ACCEPT.

Figure 17 Calibrating the Submerged Area/Velocity Sensor

4.3 Submerged Pressure Sensor

The submerged pressure sensor is a pressure transducer that contains a titanium diaphragm. As the water pressure increases, (with increasing level in the flow stream) the diaphragm is deflected, or pushed, against a solid state device called a strain gauge. The strain gauge converts the pressure against the diaphragm to a voltage. As the level in the flow stream increases, the voltage coming from the submerged pressure sensor increases. The voltage is read by the microprocessor in the Sampler at a regular interval and converted to a number which represents the level in the flow stream. The level reading can then be converted by the meter to a flow rate based on the mathematical formula for the selected primary device.

4.3.1 Submerged Pressure Sensor Connection

The submerged pressure sensor connection is located on the left side of the controller housing and is labeled submerged pressure sensor. The connector is keyed and can only be inserted in the proper orientation (key up).

 

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Submerged Pressure Sensor

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Hach 900 MAX manual Submerged Pressure Sensor Connection
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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.
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