Section 3

b.If Stop After Last Sample is chosen, enter the samples to collect using the numeric keypad. Press ACCEPT to continue to Liquid Sensor.

11:00 AM 21 - APR - 01

SAMPLE DISTRIBUTION

ACCEPT

SAMPLES TO COLLECT:

2CLEAR

BACKUP

ENTRY

ENTER: 1 — 999

Example 1: The following example creates four identical composite samples automatically if the sampler is programmed as follows:

•Bottles— 4

•Sample Collection; Sampling Interval— 30 minutes

•Sample Collection; Samples to Collect— 25

•Sample Volume— 100 mL

Every 30 minutes a sample is initiated and a 100 mL sample is drawn into the first bottle. The distributor arm advances to bottle #2 and 100 mL of sample is drawn into the second. This also occurs in bottles #3 and #4.

Sampling will continue every 30 minutes until 25 samples are deposited.

Once all samples are deposited the program will terminate. If Run

Continuously is selected the sampling will restart automatically.

Step 7 - Liquid Sensor

The liquid sensor contains a pair of ultrasonic transducers which sense the presence of liquid inside silicone tubing.

7-A.Enable or Disable Liquid Sensor using the CHANGE CHOICE key.

Note: Sample retries cannot be enabled when the liquid sensor is disabled.

Enabling the Liquid Sensor

When the liquid sensor is enabled, the sampler will perform two duties:

•It senses when liquid reaches the pump during an intake cycle. The pump then reverses to rinse the line, up to three times.

•It senses the absence of liquid during a sample intake cycle if the intake tubing is plugged or if the water level has dropped below the level of the intake tube strainer. This initiates a Sample Retry if programmed

Disabling the Liquid Sensor/Timed Calibration

Disabling the liquid sensor turns the liquid sensor off. The sample volume is then metered using a timed method (Timed Calibration), instead of a sensed method.

7-B.Press ACCEPT to continue to Sample Volume.

 

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Basic Programming Setup

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Hach 900 MAX manual Enabling the Liquid Sensor, Disabling the Liquid Sensor/Timed Calibration
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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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