SECTION 4: Operation

4.1 Menu options

The main menu provides access to various functional settings/options, as seen in the Table 2 below. Each menu option has a submenu, whereby configuration is done.

Table 2: Main menu options

 

 

 

 

 

Calibrate Sensor

Select Display Language

Self-test Relay

Enable/Disable Channels

Modbus Setup

Sensor Upper Limit(Range)

Set Alarm Level

Setup Current Date

Select Gas Type

Set Relay Option

Setup Current Time

Cal. Gas Value

Relay Assignment

View Events Log

Serial Number and Firmware version

Relay Alarm Mode setting

Manual Reset

Exit

 

 

 

4.2 Navigating main menu

Navigation through the menu options is done by activating menu button 1 or 2. The same function is provided using magnet to select Reed switch 1 (indicated by printed magnet in the 8’ o clock position on the face plate) or Reed switch 2 (indicated by printed magnet in the 6’ o clock position on the face plate).

1.Enter the main menu, either intrusive or non-intrusive (using the magnet), by selecting/activating any button then select “yes” by using switch 1.

2.The message “Calibrate Sensor?” will be displayed.

3.Activate up-down buttons (switch 1) or (switch 2) to scroll/navigate through main menu options.

4.Select/activate the enter key (switch 3) to display sub menu. See

5.Figure 16 and Figure 17.

6.To exit the main menu, continue using the navigation keys (up-down keys) and select “Exit” with enter key at each menu stage (sub menu and main menu).

7.The main menu will be exited automatically if no option is selected; it takes 50 seconds to exit to each of the previous options or stage entered. If left untouched, this continues until the main menu is fully exited.

Figure 16: Main menu navigation

 

 

 

 

Select “Yes” by

 

Select menu button 1 or 2

 

selecting menu

 

to scroll/navigate through

Enter main menu?

button 1

Calibrate Sensor?

main menu

Yes No

1 2 3

Menu buttons/

Switches

MAN-0076 Rev 05 Millennium II

December 07, 2012

Net Safety Monitoring Inc

1 2 3

Menu buttons/

Switches

22

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Emerson M22, M21 user manual Operation, Menu options, Navigating main menu

M22, M21 specifications

The Emerson M21 and M22 are advanced industrial controllers designed to enhance process automation and operational efficiency in various industries. Emerson, a leader in automation technology, introduced these models to meet the growing demands for precision, reliability, and connectivity in today’s fast-paced industrial environments.

One of the standout features of the M21 and M22 controllers is their robust processing power. They are equipped with high-speed processors that enable rapid data processing and real-time decision-making. This capability allows users to respond promptly to changing process conditions, ensuring optimal performance and minimizing downtime.

The M21 and M22 offer versatile connectivity options, supporting various communication protocols such as Ethernet, Modbus, and TCP/IP. This extensive connectivity facilitates seamless integration into existing systems, allowing for easy collaboration between devices across different platforms. Users can monitor and control processes from virtually anywhere, providing flexibility and convenience.

Scalability is another essential characteristic of the M21 and M22. These controllers can easily adapt to growing operational demands, enabling businesses to expand their automation solutions without the need for complete overhauls. Whether you're running a small system or a large, complex operation, these controllers can scale to meet your needs.

Furthermore, Emerson has incorporated advanced diagnostic and predictive maintenance features into the M21 and M22 models. These technologies leverage data analytics to predict potential failures before they occur, allowing users to take proactive measures. This not only minimizes unexpected downtime but also extends the lifespan of equipment, contributing to overall cost savings.

In terms of user interface, the M21 and M22 come with intuitive software that provides easy navigation and configuration. The interface is designed to be user-friendly, reducing the learning curve for new operators and allowing for efficient setup and management of processes.

Finally, both controllers are built with a focus on reliability and durability, making them suitable for various industrial environments, including harsh or demanding settings. Their robust design ensures consistent performance, even in challenging conditions.

In summary, the Emerson M21 and M22 controllers represent cutting-edge solutions in industrial automation, offering high processing power, flexible connectivity, scalability, advanced maintenance features, user-friendly interfaces, and robust design. Companies looking to enhance their automation capabilities will find these controllers to be valuable assets in achieving operational excellence.