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Instruções de Operação Omega, Modelo CNI16

Fabricante : Omega
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Press d 29) Display shows STRD stored message momentarily and then advances to CYCL only, if it was changed, otherwise press a to advance to CYCL Cycle Time Submenu. If “Enabled”, the controller is ready to calculate P, PI or PID parameters. The instrument performs this by activating the output and observing the delay and rate at which the Process Value changes. The setpoints must be at least 18°F or 10°C above the (PV) Process Value in order to perform Auto Tune, otherwise an error message will be displayed. To start Auto Tune PlD select PID, enable Auto PID and enable Start PID. Sometimes Auto PID parameter needs fine tuning i.e. for each 5°F over shoot increase the Proportional Band (PB) by 15% and for each ±1°F fluctuation at the Setpoint (SP) increase reset by 20%. Once started, display shows A.TUN with letters blinking in the rotating pattern. When auto tune stops, display will show process value. Do not perform any operations or settings before first stopping Auto Tune. Any alarms or other output is disabled during Auto Tune. If “AUTO PID” was “DISABLED”, the display will show the following three submenus. This allows the user to manually enter values for Proportional, Reset and Rate terms corresponding to P, I, and D. It also can be used for auto PID for disabling unwanted parameter i.e. PI enter 0000 for rate. PROPORTIONAL BAND SUBMENU: Press d 30) Display flashes 1st digit of the previous P PRoP Proportional band value. Press b & c 31) Press b and c buttons to enter a new “Proportional Band” value. Press d 32) Display shows STRD stored message momentarily and then advances to REST only, if it was changed, otherwise press a to advance to REST Reset Setup Submenu. Proportional band is in degrees of temperature or counts of process. Proportional band is defined, as the change in the instrument input to cause a 100% change in the controller output. 39 RESET SETUP SUBMENU: Press d 33) Display flashes 1st digit of the previous I REST Reset value. Press b & c 34) Press b and c buttons to enter a new “Reset” value. Press d 35) Display shows STRD stored message momentarily and then advances to RATE only, if it was changed, otherwise press a to advance to RATE Rate Setup Submenu. Reset unit is in seconds 0-3999. RATE SETUP SUBMENU: Press d 36) Display flashes 1st digit of previous D RATE Rate value. Press b & c 37) Press b and c buttons to enter a new RATE value. Press d 38) Display shows STRD stored message momentarily and then advances to the CYCL only, if it was changed, otherwise press a to advance to CYCL Cycle Time submenu for RTD and Thermocouple types. Rate unit is in seconds 000.0-399.9. If the Output 1 is Analog Option the display skips to Damping Factor. CYCLE TIME SUBMENU: Press d 39) Display flashes 1st digit of the previous CYCL Cycle Time value. Press b & c 40) Press b and c buttons to enter a new “Cycle Time” value. (1 to 199 seconds) Press d 41) Display shows STRD stored message momentarily and then advances to DPNG only, if it was changed, otherwise press a to advance to DPNG Damping Factor Submenu. A Cycle Time selected between 1 and 199 seconds determines the total On/Off time of each proportional cycle. For example, a 15 second cycle time means that every 15 seconds the output will turn on for part or all of the cycle. For Relay control outputs, do not select a cycle time of less than 7 seconds or the relays’ lifetime will be shortened. For a cycle time of less than 7 seconds select SSR or DC pulse. Use an external SSR with the DC pulse option for higher currents (higher than 1 Amp). 40 DAMPING FACTOR SUBMENU: Press d 42) Display flashes the previous “Damping Factor” selection. Press b 43) Scroll through the available selections: 0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007. Press d 44) Display flashes STRD stored message and then advances to OUT2 only, if it was changed, otherwise press a to advance to OUT2 Output 2 Menu. Damping Factor is a measure of speed, overshoot, and undershoot in which the process variable responds to the output changes of the instrument, which were used during the Auto Tune. This value is typically set to the ratio of Rate to Reset. This Default value is (0003). For fast response time, this value should be decreased while for slow response time it should be increased. The "DEADBAND" Submenu will only appear if "ON/OFF" was selected from the "Control Type" Menu. DEADBAND SUBMENU: Press d 45) Display flashes 1st digit of the previous DEAD Deadband value. Press b & c 46) Press b and c buttons to enter a new “Deadband” value. Press d 47) Display shows STRD stored message and then advances to OUT2 only, if it was changed, otherwise press a to advance to OUT2 Output 2 Menu. Dead Band units are the same as Proportional Band units. The Dead Band or neutral zone is the number of degrees or counts (if Input Type is Process) around the Setpoint which the Process Variable must pass above or below the Setpoint, before the output changes state. 41 3.2.11 Output 2 Output 2...

Este manual também é adequado para os modelos :
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