Appendix B Data Log, Logging Intervals | Hach 900 MAX instruction

Appendix B

Data Log

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

The sampler can record up to 116,000 readings from any or all input channels and store them in solid state, battery-backed memory for later viewing or retrieval.

This option allows the selection of channels to log, how often to log, and how to treat the memory when it becomes full (Slate or Wrap).

The sampler has two data logging modes:

•Power Save Mode

•Continuous Mode

Logging Intervals

Logging Intervals are designed to optimize the available memory so that readings can be logged for a longer period of time. A logging interval is the time period over which readings are taken and then averaged.

Power Save Mode

Power Save Mode is automatically initiated upon power-up if a battery is installed on the sampler. When operating in Power Save Mode, the sampler microprocessor spends most of its time asleep conserving battery power. Once per minute, the sampler wakes up, logs the readings from all enabled input channels, performs any other necessary functions and then goes back to sleep.

Selecting a five-minute logging interval means that the readings are still taken every minute but the data is not logged until the five-minute logging interval is complete. At that time the readings are averaged over the previous five minutes and that average is logged

Continuous Mode

Continuous Mode is automatically initiated upon power up if ac power is supplied. The microprocessor stays awake at all times taking readings every second. At the end of the specified logging interval, the readings are averaged over the previous interval and stored in memory. If a one-minute logging interval is selected, a reading will be taken approximately every second but no data is logged until the logging interval ends. At that time, the readings are averaged over the logging interval and only the average is logged.

If a five-minute logging interval is selected, readings are still taken every second but the data are not logged until the five-minute logging interval ends. At that time, the readings are averaged over the previous five minutes and the average is logged.

Extended Power Mode

Extended Power Mode provides additional battery life by keeping a sampler powered down during the entire logging interval. For example, if a logging interval of five minutes is selected, the sampler stays asleep until the five minutes has expired. It then wakes up, takes a reading, logs it in memory and goes back to sleep for another five minutes. The sampler does not wake up every minute as it does in normal

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8990apdx_pfeatures.fm	Programming Features

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 Appendix B Data Log, Logging Intervals, Power Save Mode, Continuous Mode

Models: 900 MAX