Section 3

Step 8 - Sample Volume

Note: The minimum sample volume is ten milliliters.

When multiple bottles are selected in Bottle Per Sample mode all bottles in a subset receive a full sample volume. The volume is not divided among

the bottles.

8-A.Enter the desired volume of each sample using the numeric keypad. Press ACCEPT to continue to Intake Rinses.

11:00 AM 21 - APR - 01

 

SAMPLE VOLUME

ACCEPT

 

 

 

SAMPLES VOLUME:

 

BACKUP

______

CLEAR

 

ENTRY

 

 

 

 

 

 

ENTER: 10 — 9999

 

 

 

 

Step 9 - Intake Rinses

9-A.Enter number of rinses using the numeric keypad.Press ACCEPT to continue to Sample Retries.

11:00 AM 21 - APR - 01

INTAKE RINSES

ACCEPT

 

 

 

INTAKE RINSES:

 

BACKUP

0

CLEAR

 

ENTRY

 

 

 

 

 

 

ENTER: 0 — 3

 

 

 

 

Up to three intake rinses are enabled per sample cycle. After the sample cycle’s initial purge has been completed, the sample liquid is drawn in until it reaches the liquid sensor. The pump stops and purges the line before any liquid enters the bottle. This is repeated up to three times before the actual sample is taken and the line purged for the final time during that cycle.

Intake rinse can prevent cross contamination of samples. When the line is purged at the end of each sample cycle, a few droplets of sample liquid may cling to the inside walls of the tubing and the droplets are drawn in with the following sample. Intake rinses will condition the intake line with a source liquid that minimizes contamination from the previous sample.

Step 10 - Sample Retries

Note: Excessive intake tube line lengths combined with multiple Intake Rinses and Sample Retries can increase the pump tube and drive train wear. Locate the sampler as close to the sample liquid source as possible to minimize wear and maintenance requirements.

10-A.Enter the number of Sample Retries using the numeric keypad. Press ACCEPT to continue to Site ID.

Up to three sample retries are enabled per sample cycle. After the initial purge is completed, the sample liquid is drawn until it reaches the liquid sensor. If the sample liquid does not reach the sensor within a reasonable time (determined using the tubing length), the sample attempt is aborted, a purge is initiated and the first of up to three sample retries is attempted.

After three attempts and no sample liquid has been collected, the cycle is aborted, a Missed Sample is reported to the Sample History Log, and the sampler begins a new sample interval.

Page 48

 

Basic Programming Setup

8990startup.fm

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Hach 900 MAX manual Section Sample Volume, Intake Rinses, Sample Retries
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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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