1. Introduction
This user manual provides essential information for the safe and effective operation of the Yokogawa UT35A-000-11-00 Temperature Controller. It covers installation, operation, maintenance, and troubleshooting. Please read this manual thoroughly before using the product and keep it for future reference.
2. Safety Information
Always observe the following safety precautions to prevent injury to personnel and damage to the instrument.
- Ensure the power supply voltage matches the specifications of the controller.
- Do not operate the controller in environments with excessive dust, humidity, or corrosive gases.
- Disconnect power before performing any wiring or maintenance.
- Only qualified personnel should perform installation and wiring.
- Do not disassemble or modify the controller.
3. Product Overview
The Yokogawa UT35A-000-11-00 is a high-performance temperature controller designed for precise process control in industrial applications. It features a clear digital display and intuitive controls for easy parameter setting and monitoring.
Figure 3.1: Front view of the Yokogawa UT35A-000-11-00 Temperature Controller. The display shows "PV" (Process Value) and "SP" (Set Point) with numerical readings. Below the display are various function buttons, navigation arrows, and "DISPLAY" and "PARAMETER" buttons.
3.1 Key Components
- Digital Display: Shows Process Value (PV), Set Point (SP), and other operational data.
- Function Buttons (F1, F2): User-assignable functions.
- Navigation Buttons: Used for menu navigation and parameter adjustment (Up, Down, Left, Right, Enter).
- DISPLAY Button: Toggles display modes.
- PARAMETER Button: Accesses parameter settings.
- RUN/STOP Indicators: Status lights for operation.
4. Setup
4.1 Mounting
Mount the controller in a panel cutout according to the specified dimensions. Ensure adequate ventilation around the unit to prevent overheating.
4.2 Wiring
Refer to the wiring diagram provided with your specific model for correct connections. Ensure all wiring is secure and meets local electrical codes.
- Power Supply: Connect to the designated power terminals.
- Sensor Input: Connect the temperature sensor (e.g., thermocouple, RTD) to the input terminals. Observe polarity for thermocouples.
- Control Output: Connect to the heating/cooling element or other control device.
- Alarm Outputs: Connect to external alarm indicators if required.
5. Operating Instructions
5.1 Power On
After completing all wiring, apply power to the controller. The display will illuminate, showing the current Process Value (PV) and Set Point (SP).
5.2 Setting the Set Point (SP)
- Press the SET/ENTER button to enter the set point adjustment mode.
- Use the Up/Down arrow buttons to adjust the SP value.
- Press SET/ENTER again to confirm the new SP.
5.3 Parameter Configuration
To access advanced parameters (e.g., PID constants, alarm limits, input type):
- Press the PARAMETER button.
- Navigate through the parameter groups using the Up/Down arrows.
- Use the SET/ENTER button to select a parameter and the Up/Down arrows to change its value.
- Press SET/ENTER to save changes and PARAMETER to exit the parameter menu.
5.4 Run/Stop Operation
The controller can be set to RUN or STOP mode. Refer to the specific model's manual for details on how to toggle this mode, often via a dedicated button or a parameter setting.
6. Maintenance
Regular maintenance ensures the longevity and accuracy of your temperature controller.
- Cleaning: Wipe the front panel with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check wiring connections for looseness or damage.
- Calibration: If accuracy issues arise, consult a qualified technician for recalibration.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display | No power, incorrect wiring | Check power supply and wiring connections. |
| PV reading is unstable or incorrect | Sensor faulty, incorrect sensor type setting, electrical noise | Check sensor connection and integrity. Verify sensor type in parameters. Ensure proper grounding. |
| Controller not heating/cooling | Output wiring issue, control mode incorrect, set point not reached | Check output wiring. Verify control mode (e.g., PID, ON/OFF). Ensure SP is set correctly. |
For issues not listed here, or if troubleshooting steps do not resolve the problem, please contact Yokogawa technical support.
8. Specifications
| Attribute | Detail |
|---|---|
| Model Number | UT35A-000-11-00 |
| Brand | Yokogawa |
| Item Weight | 1.1 pounds |
| Package Dimensions | 4 x 4 x 3 inches |
| Manufacturer | YOKOGAWA |
| Date First Available | June 24, 2013 |
9. Warranty and Support
This product is covered by Yokogawa's standard warranty. For detailed warranty terms and conditions, please refer to the documentation included with your purchase or visit the official Yokogawa website. For technical support, service, or spare parts, please contact your local Yokogawa representative or authorized distributor.
Online Resources: For the latest information, software updates, and additional resources, please visit the official Yokogawa website.
