1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Hanyoung Nux T48A-3B-A Power On Delay Analog Timer. Please read this manual thoroughly before using the product to ensure correct and safe operation.
The T48A-3B-A is a miniaturized analog timer designed for precise time control in various applications. It features a multi-time range selection and easy time setting via a dial.
Figure 1: Front view of the Hanyoung Nux T48A-3B-A Analog Timer. Shows the dial for time setting, power and output indicators, and time range selection.
2. Product Features
- Compact Size: Dimensions of 48.0(W) x 48.0(H) x 59.0(D) mm, ideal for space-constrained installations.
- Wide Power Supply Range: Operates on 24 - 240 V AC/DC, offering flexible power options.
- Easy Time Setting: Simple and intuitive time adjustment using a front-mounted dial.
- Multi-Time Range: Features 20 multiple time ranges, allowing for precise control from 0.1 seconds up to 48 hours.
- Selectable Time Units: Users can select between seconds, minutes, or hours for time settings.
- Output Type: Instantaneous SPDT (1c) + time-limit SPDT (1c) output.
3. Model Identification (Suffix Code)
The model number T48A-3B-A provides specific details about the timer's configuration. Refer to the table below for a breakdown of the suffix codes.
Figure 2: Suffix code explanation for T48A series, detailing model, time range, control output, and power supply voltage.
| Component | Code | Description for T48A-3B-A |
|---|---|---|
| Model Base | T48A | Analog timer with 48.0(W) x 48.0(H) x 59.0(D)mm dimensions. |
| Time Range | 3 | Maximum time: 3 seconds / 3 minutes / 3 hours / 30 seconds / 30 minutes. |
| Control Output | B | Instantaneous SPDT (1c) + time-limit SPDT (1c). |
| Power Supply Voltage | A | 24 - 240 V a.c. 50/60 Hz or 24 - 240 V d.c. dual usage. |
4. Dimensions and Panel Cutout
Accurate dimensions are crucial for proper installation. The following diagrams illustrate the product dimensions and the recommended panel cutout for mounting.
Figure 3: Detailed dimensions of the T48A timer (left) and recommended panel cutout dimensions (right) in millimeters.
- Product Dimensions (W x H x D): 48.0 mm x 48.0 mm x 59.0 mm (excluding terminals).
- Panel Cutout Dimensions (W x H): 45.0 mm (+0.5, -0) x 45.0 mm (+0.5, -0).
5. Setup and Installation
Before installation, ensure the power supply is disconnected. The timer is designed for panel mounting. A compatible 8-pin socket (not included) is required for connection.
5.1. Mounting
- Prepare a panel cutout with the dimensions specified in Section 4 (45.0 mm x 45.0 mm).
- Insert the timer into the panel cutout from the front.
- Secure the timer using the fixing bracket (if supplied) from the rear of the panel.
5.2. Wiring and Connection
The T48A-3B-A uses an 8-pin socket for electrical connections. Refer to the connection diagram below for proper wiring. Ensure all connections are secure and comply with local electrical codes.
Figure 4: Detailed specifications of the T48A timer (top) and connection diagrams for T48A-B and T48A-C models (bottom).
For the T48A-3B-A model, refer to the T48A-B (instantaneous 1c + time-limit 1c) connection diagram in Figure 4. The power supply (24-240 V AC/DC) connects to pins 2 and 7. Output contacts are available on pins 1, 3, 4, 5, 6, and 8.
- Power Input: Connect the 24-240 V AC/DC power supply to the designated power terminals (typically pins 2 and 7 on an 8-pin socket).
- Output Connections: Connect your load to the appropriate output terminals based on your application's requirements (e.g., normally open, normally closed, instantaneous, or time-limit contacts).
Warning: Ensure power is off before making any electrical connections to prevent electric shock or damage to the device.
6. Operating Instructions
The T48A-3B-A timer is designed for straightforward operation. Follow these steps to set and operate the timer.
Figure 5: Diagram showing the function of each part of the timer (top) and the operation time range selection table (bottom).
6.1. Understanding the Controls and Indicators
- Power On Indicator (POW UP): Illuminates when power is applied to the timer.
- Output Indicator: Illuminates when the timer's output is active (ON).
- Time Setting Dial: Used to set the desired operation time within the selected range.
- Time Range Selection Switch: Located on the front panel, this switch allows you to select the base time unit (seconds, minutes, or hours) and the overall time range.
6.2. Setting the Operation Time
- Select Time Range: Before applying power, use the time range selection switch to choose the appropriate range (e.g., 3 sec, 3 min, 3 hour, 30 sec, 30 min for T48A-3B-A). Refer to the "Operation time range selection switch" table in Figure 5 for available ranges and their corresponding setting ranges.
- Set Time with Dial: Rotate the large dial on the front of the timer to set the desired time within the selected range. The red indicator on the dial points to the set value.
- Apply Power: Once the time and range are set, apply power to the timer. The "POW UP" indicator will illuminate.
- Operation: The timer will begin its delay cycle. Upon completion of the set time, the output will activate, and the "Output" indicator will illuminate.
Note: The time range selection switch should be changed only when power is off. If changed while power is on, the operation time range will not change until power is cycled.
7. Maintenance
The Hanyoung Nux T48A-3B-A Analog Timer is designed for reliable operation with minimal maintenance. However, following these guidelines can help ensure its longevity:
- Cleaning: Keep the timer clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges (refer to Section 9, Specifications). Avoid exposure to direct sunlight, excessive vibration, or corrosive gases.
- Connections: Periodically check all electrical connections to ensure they are secure and free from corrosion.
Caution: Always disconnect power before performing any maintenance or cleaning to prevent electric shock.
8. Troubleshooting
If you encounter issues with your Hanyoung Nux T48A-3B-A Analog Timer, consider the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer does not power on (POW UP indicator off) | No power supply; Incorrect wiring; Power supply voltage out of range. | Check power source; Verify wiring according to Section 5.2; Ensure voltage is within 24-240 V AC/DC. |
| Output does not activate after set time | Incorrect time setting; Incorrect time range selection; Faulty wiring to load; Load issue. | Re-check time setting and range; Verify output wiring; Test the load independently. |
| Time setting is inaccurate | Incorrect time range selected; Dial not set precisely. | Ensure the correct time range is selected for the desired duration; Adjust the dial carefully. |
| Timer behaves erratically | Electrical noise/interference; Damaged unit. | Ensure proper grounding; Isolate from noise sources; If problem persists, contact support. |
If the problem persists after attempting these solutions, please contact Hanyoung Nux Korea customer support or your local distributor for assistance.
9. Specifications
The following table provides detailed technical specifications for the Hanyoung Nux T48A-3B-A Analog Timer.
| Parameter | Value |
|---|---|
| Model | T48A |
| Timer Type | Analog Timer |
| Power Voltage | 24 - 240 V a.c. 50/60 Hz or 24 - 240 V d.c. dual usage |
| Allowable Voltage | ±10 % of Power supply voltage |
| Power Consumption | Max. 3.7 VA (24 - 240 V a.c. 50/60 Hz) / Max. 1.5 W (24 - 240 V d.c.) |
| Operating Time Range | 0.1 sec ~ 48 hour (selectable via time range switch) |
| Operating Time Error | Setting error: Max. ±5 % ±0.05 Repetition error: Max. ±0.3 % Voltage error: Max. ±0.5 % Temperature error: Max. ±2 % |
| Return Time | Max. 100 ms |
| External Connection Method | 8-pin socket |
| Operation Mode | POWER ON DELAY (fixing) |
| Control Output | T48A-B: Instantaneous SPDT (1c) + time-limit SPDT (1c) |
| Contact Capacity | N.O. (250 V a.c. 3A Resistive load) N.C. (250 V a.c. 2A Resistive load) |
| Relay Life | Mechanical life: Min. 10 million cycles Electrical life: Min. 20,000 cycles (250 V a.c. 2A resistive load) |
| Insulation Resistance | Min. 100 MΩ (500 V d.c. mega, at conductive terminal and non-charged metal which is exposed) |
| Dielectric Strength | 2000 V a.c. 50/60 Hz for 1 minute (at conductive terminal and non-charged metal which is exposed) |
| Noise Immunity | ±2kV (between the power terminals, pulse width = 1 us, square wave noise by noise simulator) |
| Vibration Resistance | 10 - 55 Hz (for 1 minute) 0.75mm double amplitude 0.75 mm in X, Y, Z direction for 2 hours |
| Shock Resistance | 300 m/s² (30G) in each X, Y, Z direction for 3 times |
| Operating Ambient Temperature | -10 ~ 55 °C (without condensation) |
| Accessories | Fixing Bracket |
| Weight (g) | Approx. 82 g |
| Approval | CE |
| Product Dimensions (D x W x H) | 2.32"D x 1.89"W x 1.89"H (59.0mm x 48.0mm x 48.0mm) |
| UPC | 726179952581 |
10. Warranty and Support
Hanyoung Nux Korea products are manufactured to high quality standards. For specific warranty terms and conditions, please refer to the warranty information provided at the time of purchase or contact your authorized Hanyoung Nux distributor or the manufacturer directly.
For technical support, troubleshooting assistance beyond this manual, or inquiries regarding parts and service, please contact:
- Your point of purchase (seller/distributor).
- Hanyoung Nux Korea customer service (contact information typically available on their official website).
When contacting support, please have your product model number (T48A-3B-A) and any relevant purchase details ready.