4.Select the channel (sensor) to be configured and adjust the sensor’s range using the up-down arrow keys (switch 1) or (switch 2). The specific sensor provides the upper limits/ranges.

Note: If no selections appear when activating the up/down arrow keys at this stage, the specific sensor only has one upper limit/range, which cannot be altered.

5.Activate the enter key (switch 3) when the desired upper limit/range is reached.

6.To exit, select “Exit” at each menu stage (sub menu and main menu).

4.3.6Select Gas Type

“Select Gas Type” option allows the user to select a particular target gas and/or Correction (“K”) Factor in the case of Catalytic Bead sensors or choose the type of LEL gas (gas curve) in the case of IR sensors. See specific sensor manual in relation to this menu option.

4.3.7 Calibration gas value

This option allows the user to select the calibration gas value in the transmitter main menu. Although it is recommended that 50% span gas should be used for calibration, for some sensors, the transmitter will allow tolerance/flexibility in the calibration gas available; 10% to 60% span gas allowed for some sensor types. See specific sensor manual.

1.Enter the main menu by activating any key to get the “enter main menu” prompt, then activate switch 1 to select “yes”.

2.Activate the up key (switch 1) or down key (switch 2), until “Cal. Gas value” option is displayed.

3.Activate the enter key (switch 3). Channel1 and channel 2 existing calibration gas values will be displayed in three numeric groups: ‘hundreds’, ‘tens’, and ‘ones’. For example: 0 5 0 indicates a calibration gas value of 50% span.

4.Highlight the required channel with calibration gas value using the navigation keys (switch1) or (switch 2), then select using switch 3. Switch 1 is used to increase /change a value in each numeric group, while switch 2 is used to cycle across the numeric groups.

5.To exit, select “Exit” at each menu stage (sub menu and main menu).

4.3.8Serial Number & Firmware Version

This option is used when the serial number or firmware version of the Millennium II Transmitter is required.

1.Enter the main menu by activating any key to get the “enter main menu” prompt, then activate switch 1 to select “yes”.

2.Activate the up key (switch 1) or down key (switch 2), until “Serial Number and Firmware Version” option is displayed.

3.Activate the enter key (switch 3). The firmware version and serial number will be displayed.

4.To exit, select “Exit” at each menu stage (sub menu and main menu).

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MAN-0076 Rev 05 Millennium II December 07, 2012

Net Safety Monitoring Inc

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Emerson M22, M21 user manual Select Gas Type, Calibration gas value, Serial Number & Firmware Version
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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.
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