Dissolved Oxygen Probe, O. Connections J20

Section 5

4.Attach the positive battery terminal to the terminal block screw labeled “glass” and the negative battery terminal to the terminal block screw labeled “ref.”

5.After making all connections, measure the exact voltage on the “C” cell or power supply with a voltmeter. Then press a key to continue. The sampler displays the message “Waiting for ORP to Stabilize.”

6.Once the reading is sufficiently stable enter a new millivolt level. The “C” cell battery should be approximately 1500 mV (or 1.5 V) when new. Enter the exact voltage of the current source in millivolts.

7.Press ACCEPT to store the new calibration values.

8.Disconnect the “C” cell battery or regulated power supply from the ORP input terminals.

9.Reconnect the ORP Probe leads to the input terminals.

5.4Dissolved Oxygen Probe

5.4.1 Dissolved Oxygen Probe Connection

This connection is for interfacing the optional D.O. probe to the

D.O./Conductivity Pre-Amp (Cat. No. 3369).

Table 10 D.O. Connections (J20)

Pin	Signal Description	Wire Color

A	DO - (neg)	Green

B	DO + (pos)	Red

C	Thermister	Black

D	Thermister	Yellow

Strain Relief Recommendation

A strain relief is recommended to protect the cable/probe junction during application where the sensor will be thrown or tossed into liquid.

5.4.2 Dissolved Oxygen Probe Programming

Note: The membrane thickness must be programmed into the

instrument. The instrument uses this information to determine if the sensor is generating a reasonable current. Failure to program this value may result in false error conditions

1.From the Main Menu, select OPTIONS>ADVANCED OPTIONS>DATALOG.

2.Highlight Select Inputs using the UP and DOWN keys and press SELECT.

3.Highlight D.O. using the UP and DOWN keys, then press SELECT.

4.Press CHANGE CHOICE to cycle between Logged and Not Logged, then press ACCEPT.

5.Enter a logging interval, then press ACCEPT. Valid logging intervals are shown on the status bar.

6.Press CHANGE CHOICE to select the appropriate units (ppm, ppb, mg/L, sat). Press ACCEPT to continue.

7.Select another channel to configure, press RETURN to back up one step or press MAIN MENU to return to the Main Menu.

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Dissolved Oxygen Probe	8990options.fm

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 manual Dissolved Oxygen Probe Connection, Dissolved Oxygen Probe Programming

Models: 900 MAX