Omega Engineering CN9400 specifications Autotune, T o t u n e, Tune Program, Cycle-Time

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Select the most appropriate method of Autotune , Tune or Tune at Setpoint, to suit the application.

Note: The proportional cycle-time can be pre-selected before starting Autotune, see PROPORTIONAL

CYCLE-TIME.

The TUNE program should be run with the load cool. The output is cycled at 75% of the setpoint value to avoid any overshoot during the tuning cycle. The warm-up characteristics are monitored and set DAC which minimises overshoot on subsequent warm-ups.

The TUNE AT SETPOINT program is recommended:

when the setpoint is below 100°C/200°F, where TUNE’s tuning cycle at 75% setpoint may be too close to ambient to produce good results;

when the process is already hot and the cooling rate is slow;

when controlling multi-zone or heat-cool applications;

to re-tune if the setpoint is changed substantially from previous Autotune.

Note: dAC is not re-tuned by TUNE AT SETPOINT.

AUTOTUNE

TUNE PROGRAM

Temp

 

 

 

Setpoint

 

 

 

Tuning

DAC

PID

 

TUNE

 

 

 

Cycle

 

 

 

75% SP

11/4 on/off tuning

New PID

 

 

 

cycles

values

 

 

entered

 

 

 

Start TUNE

 

 

 

 

 

 

Time

 

 

 

(100% output)

Enter program mode

and from the display

TUNE

OFF

 

press and hold ✱ and press ▲ once,

 

the controller will now display

TUNE

ON

 

Exit program mode.

 

The TUNE program will now start. The upper display will

 

alternate between tune and the process temperature as it

 

climbs to setpoint.

TUNE

The lower display will read the setpoint value e.g.

 

 

232

Note: During tuning, the main setpoint (SP1) LED will flash.

 

A u t o t u n e

7

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Contents User’s Guide D e IndexUltimate Safety Alarms Safety InformationInstallation ConfigurationC t Functions MenuSPI.D Quick StartI c k S t a r t SPI.DCN9400 IntroductionT r o d u c t i o n TuneAutotune OverviewE r v i e w SET-UPFunctions CYCLE-TIMESET-UP N u N a v i g a t i o n Using Program ModeReminder of Instrument Adjustments Menu NavigationTune AutotuneT o t u n e Tune ProgramTune AT Setpoint Program Proportional CYCLE-TIME Reminder of Instrument AdjustmentsCYC.T Proportional CYCLE-TIMECYCLE-TIME Selection Methods CYCLE-TIME RecommendationsTo Pre-Select Cycle-time Before Autotune Pre-Select Automatic Acceptance of Any Autotune Cycle-timeSoak A m m e rRAMP-SOAK SprrC o n d S e t p To Configure SP2 AS AN AlarmSecond Setpoint SP2 SP2.B Subsidiary SP2 ModeSP2 Output and LED Indication States in Alarm Condition C o n d SFail Error MessagesData N g C o n t r o l a c c u r a c y Using the CheK Control accuracy monitorRead SP1 Output Percentage Power Improving Control AccuracyDAC LevelBand DER.TSET.2 N c t i o n L i s tCYC.T OfstInpt DispHisc LO.SCSP1 SP2 BurnREU.D Chek REU.LSpan ZeroProg Auto StAY Program security using LockFactory SET Output Options V a n c e d S e t t i n g s Advanced SettingsHeat Cool Strategy Configuration Multi zone applications Heat Cool Strategy ConfigurationCalibration to Another Instrument Water cooled applicationsCalibration to Another Instrument Linear Input CalibrationV a n c e d S e t t G sDIN panel cutout size Mechanical InstallationC h a n i c a l Installation DIN Panel CutoutTo mount a Controller proceed as follows Minimum Spacing MountingOutput Device Allocation E c t r i c a l InstallationWiring the Connector Output DevicesE c t r L InstallationModel CN9412 Typical Connection Diagram N s o r S e l e c t i o n Specification SpecificationReturn REQUESTS/ Inquiries Warranty / DisclaimerOmega.comTM

CN9400 specifications

The Omega Engineering CN9400 is a cutting-edge device designed for precision temperature control and monitoring in industrial and research applications. This versatile instrument is renowned for its high accuracy, stability, and user-friendly interface, making it an essential tool for engineers and technicians alike.

One of the standout features of the CN9400 is its advanced PID control algorithm. This method ensures that temperature fluctuations are minimized, allowing for precise temperature management in processes that require strict adherence to specific thermal conditions. The PID control system continuously calculates the error between a desired setpoint and a measured process variable, adjusting the control output to achieve optimal performance.

The CN9400 is equipped with a large, easy-to-read LCD display that provides real-time data on temperature readings and system status. Users can view both set point and actual temperature simultaneously, enabling quick and informed decisions during critical operations. Additionally, the display features customizable alerts and notifications that inform operators of any deviations or potential issues, ensuring a proactive approach to process control.

In terms of connectivity, the CN9400 offers a variety of options, including RS-232 and RS-485 communication protocols, enabling seamless integration into existing control systems. This connectivity ensures that users can monitor and control the device remotely, enhancing operational efficiency and flexibility.

Another noteworthy characteristic of the CN9400 is its robust construction. Designed for durability, it can withstand harsh industrial environments, including extreme temperatures and vibrations. The device is also compatible with various types of temperature sensors, such as thermocouples and RTDs, providing users with the flexibility to select the most appropriate sensor type for their specific application.

In addition to its technical capabilities, the Omega Engineering CN9400 is designed with user convenience in mind. The intuitive menu-driven interface allows for easy programming and operation. Users can quickly navigate through settings and parameters without extensive training, minimizing downtime and enhancing productivity.

Overall, the Omega Engineering CN9400 is a powerful and reliable temperature controller that combines advanced technology with user-friendly features. Its precision, durability, and connectivity make it an ideal choice for a wide range of industrial and research applications, ensuring accurate temperature management in even the most demanding environments.
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