Figure 18: Calibration Flow chart Calibration Procedure

Activate any menu button

Enter Main Menu

YES NO

Activate menu button 1 to select yes

Calibrate Sensor?

Activate menu button 3 to select

Purge system with clean air from canister, then remove air canister

 

 

 

 

 

Span

 

 

 

Failed.

 

 

 

Perform

 

NO

 

manual

 

 

 

 

 

reset. See

 

 

 

page 32.

 

 

 

Repeat

 

 

 

calibration

 

 

 

.proceure.

 

 

 

 

 

 

Calibration complete

Remove Calibration Gas

YES

Span successful?

CH1: Spanning

LEL / ppm reading

Apply 50% Span gas.

Note: Some sensor types can be calibrated with 10%

-60% span calibration gas. Cal. gas value should be selected in the transmitter’s menu. See specific sensor manual.

Calibrate Sensor #1

*Calibrate Sensor #2

EXIT

Activate menu button 3 to select

Calibrate Sensor #1

YES

 

NO

 

 

 

Zero Failed. Perform manual reset. See page 32. Repeat calibration procedure.

Remove air canister if air canister was used in Zero calibration. Zero calibration complete.

Remove air canister in Full calibration procedure and continue to span step

YES

NO

Zero successful?

Apply Clean Air

Z & SPAN

 

ZERO

 

 

 

Activate menu button 1

Apply air from canister or use clean ambient

Activate menu button 1 to select

FULL Calibration

Activate menu button 3 to select

ZERO calibration

Note: *Calibration process is similar if calibration of channel 2 is required.

Page 26
Image 26
Emerson M22, M21 user manual Full Calibration

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.