Section 7

Electrostatic Discharge (ESD) Considerations

To minimize ESD risks, maintenance procedures not requiring power to the sampler should be performed with power removed.

Delicate internal electronic components can be damaged by static electricity, resulting in degraded instrument performance or eventual failure.

The manufacturer recommends taking the following steps to prevent ESD damage to your instrument:

•Before touching any instrument electronic components (such as printed circuit cards and the components on them) discharge static electricity from your body. This can be accomplished by touching an earth-grounded metal surface such as the chassis of an instrument, or a metal conduit or pipe.

•To reduce static build-up, avoid excessive movement. Transport static-sensitive components in anti-static containers or packaging.

•To discharge static electricity from your body and keep it discharged, wear a wrist strap connected by a wire to earth ground.

Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and work bench pads.

7.4 Internal Maintenance Items

The following items require access to the inside of the case for service:

•Fuses for the RS485 and analog interface connectors (if equipped)

•Internal desiccant module

•RAM memory batteries

•System upgrades (4–20 mA, modem, alarm relays, etc.)

•Circuit board repair

7.5 Removing and Opening the Controller

CAUTION

ATTENTION

Always power the unit OFF and

Débranchez toujours l'alimentation de l'analyseur d'echantillonneur et

then disconnect all cables from

débranchez tous les câbles de l'analyseur avant de déposer l'unité de

the sampler before removing the

commande.

controller.

 

 

 

To remove the controller from the refrigerator:

 

1.

Turn the unit off by pressing the OFF key.

 

2.

Disconnect and remove all cables to the controller housing, including the

 

 

distributor/full bottle shutoff cable.

 

3.

Disconnect all tubing.

 

4.

Remove the two refrigerator mounting screws from the inside of the

 

 

refrigerator.

 

5.

Carefully lift the controller assembly up and off the refrigerator.

 

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Internal Maintenance Items

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Hach 900 MAX manual Section Electrostatic Discharge ESD Considerations, Internal Maintenance Items
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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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