1. Introduction
The Irfora T3231 is a high-performance programmable time control relay switch designed for precise timing applications. It features a clear dual LED display, multiple operating modes, flexible parameter settings, and various trigger options for versatile control. This manual provides detailed instructions for installation, operation, and maintenance of your T3231 device.
Image 1.1: The T3231 programmable timer, highlighting its precise time control and clear display.
2. Safety Information
- Ensure the power supply matches the device's voltage requirements (12VDC for this model).
- All wiring should be performed by a qualified professional to prevent electrical hazards.
- Do not operate the device in wet or excessively humid environments.
- Avoid exposing the device to extreme temperatures or direct sunlight.
- Disconnect power before performing any installation, maintenance, or troubleshooting.
3. Product Overview
The T3231 features a compact design with a dual LED display (red for ON time, blue for OFF time) and intuitive control buttons. It includes screw terminals for power input and relay output connections.
Image 3.1: Front view of the T3231 showing the dual LED display and control buttons.
3.1. Key Features
- Precise Time Control: Digital cycle relay module with 9 time unit combinations.
- Wide Time Range: Adjustable from 1 second to 999 hours.
- Dual LED Display: Red and blue LEDs for clear indication of ON/OFF times.
- Flexible Parameter Setting: Supports setting power-on/off times, single delay, and continuous timing (1-999 cycles).
- Adjustable Trigger Modes: Automatic, manual, and external trigger options.
- Stable Output: Reliable 1-way relay switch with active output.
4. Specifications
| Brand | Irfora |
| Model Number | TYHDEE25186-1 |
| Color | Multicolor |
| Material | Plastic |
| Product Dimensions (L x W x H) | 8 x 2.8 x 2.8 cm (3.15 x 1.1 x 1.1 inches) |
| Working Voltage (Current Model) | 12VDC |
| Max Current (Current Model) | 20A |
| Max Power (Current Model) | 240W |
| Time Range | 1 second to 999 hours |
| Time Units | Seconds / Minutes / Hours |
| Cycle Support | Yes, 1-999 adjustable cycles |
| Trigger Modes | Auto trigger (default), Manual trigger, External trigger |
| Power Failure Save | Yes (saves settings, power reset restarts) |
| Country of Origin | China |
5. Installation
5.1. Mounting
The T3231 is designed for embedded installation. Ensure you have a suitable opening with the correct dimensions for secure mounting.
Image 5.1: Dimensions of mounting holes (77mm x 39.3mm).
5.2. Wiring
Connect the power supply and load to the screw terminals as indicated on the device. The 12VDC model requires a 12VDC power source. The output is an active relay switch. For external triggering, connect your trigger device to the reserved external trigger interfaces.
Image 5.2: T3231 variants showing wiring terminals. Ensure to use the 12VDC/240W model for this specific product.
6. Operation
6.1. Basic Controls
The device features four buttons: an UP arrow, a DOWN arrow, 'S' (Set), and 'R' (Reset/Run). These buttons are used to navigate menus, adjust values, and confirm settings.
6.2. Time Control and Units
The T3231 allows setting time delays from 1 second to 999 hours. You can select time units (seconds, minutes, or hours) during parameter configuration.
6.3. Parameter Setting (P0-P5 Codes)
The device uses parameter codes (P0 to P5) to configure different operating modes and settings. Press the 'S' button to enter the parameter setting mode. Use the UP/DOWN arrows to select a parameter (e.g., P0, P1) and then press 'S' again to adjust its value. Press 'S' to confirm the value and 'R' to exit the setting mode.
Image 6.1: Visual representation of parameter codes and their settings.
- P0: Time Unit Selection (e.g., 0=seconds, 1=minutes, 2=hours)
- P1: Operating Mode Selection (e.g., 0=single delay, 1=cycle mode)
- P2: Power-on/Power-off Delay (ON/OFF)
- P3: Cycle Count (1-999 cycles or OFF for infinite)
- P4: Trigger Priority (ON/OFF)
- P5: External Trigger Enable (ON/OFF)
Refer to the specific parameter table (often provided with the product packaging) for detailed descriptions of each code and its available values to configure your desired timing logic.
6.4. Trigger Modes
- Automatic Trigger: The device starts timing automatically upon power-on (default).
- Manual Trigger: Initiate timing by pressing a specific button (refer to parameter settings for configuration).
- External Trigger: Connect an external switch or sensor to the reserved trigger interfaces to initiate timing. Ensure the external trigger device is compatible and correctly wired.
7. Maintenance
- Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Regularly check wiring connections to ensure they are secure.
- If the device is not functioning correctly, refer to the troubleshooting section before attempting any repairs.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | No power supply or incorrect voltage. | Check power connections and ensure 12VDC supply. |
| Timing is inaccurate. | Incorrect time unit or parameter settings. | Verify P0 and other timing parameters. |
| Relay does not switch. | Incorrect wiring or faulty load. | Check load wiring and ensure the load is functional. |
| External trigger not working. | External trigger not connected or P5 setting incorrect. | Ensure external trigger device is connected and P5 is enabled. |
If problems persist after following these steps, please contact customer support.
9. Warranty Information
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, unauthorized modifications, or natural disasters.
10. Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact your retailer or the manufacturer directly. Refer to the product packaging or the seller's information for contact details.