Section 4

4.Select either inches or centimeters using the CHANGE UNITS key. The distance must be greater than the minimum deadband of 10 in. (25.4 cm) for the 75 kHz sensor and 15 in. (38.1 cm) for the 50 kHz sensor.

5.Press ACCEPT when finished.

4.2Submerged Area/Velocity Sensor

The Submerged area/velocity sensor simultaneously measures level and velocity.

4.2.1 Submerged Area/Velocity Sensor Connection

Table 5 Submerged/Area Velocity Sensor Connection

Pin

Signal Description

Wire Color

Bare Leads

 

 

 

 

A

+12 V dc

Red

Red

 

 

 

 

B

ground

Green

Green

 

 

 

 

C

Receive (ground)

B/W Shield

Yellow

 

 

 

 

D

Receive (+)

B/W Center

Orange

 

 

 

 

E

Transmit (ground)

Black Shield

Violet

 

 

 

 

F

Transmit (+)

Black Center

Gray

 

 

 

 

G

Depth (-)

Black

Black

 

 

 

 

H

Depth (+)

White

White

 

 

 

 

Recommended Routing of Submerged Area/Velocity Cable

Proper routing of the cable serves two functions:

Keeps the in-line desiccant assembly inside the cover and out of the way when installing and removing the sampler from tight manholes.

Keeps the desiccant out of direct contact with the elements. Also, keeps water from dripping directly onto the desiccant assembly.

To secure the submerged area velocity cable, route the cable around the battery and clip it under the battery hold downs.

4.2.2Submerged Area/Velocity Sensor Programming

1.From the Main Menu, select OPTIONS>LEVEL SENSOR.

2.Select Submerged Xducer using the CHANGE CHOICE key. Press

ACCEPT.

3.From the MAIN MENU, select SETUP>MODIFY SELECTED ITEMS.

4.Highlight Velocity Direction using the UP and DOWN keys. Press SELECT.

5.Set the velocity direction (upstream, downstream, or always positive) using the CHANGE CHOICE key. Press ACCEPT to continue.

6.Highlight Velocity Units using the UP and DOWN keys. Press SELECT.

 

Page 63

8990sensors.fm

Submerged Area/Velocity Sensor

Page 65
Image 65
Hach 900 MAX manual Submerged Area/Velocity Sensor Connection, Submerged Area/Velocity Sensor Programming

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.