1. Overview
The Ketotek Din Rail LCD Digital Single Phase Energy Meter (Model KTEM07) is designed for monitoring electricity consumption in single-phase AC 220V systems. Featuring a large LCD screen, this device allows users to easily set and monitor various electrical parameters including over/under voltage, current limits, leakage current alarm, and reconnect time. It also provides a function for clearing electric energy readings.
2. Specifications
| Attribute | Value |
|---|---|
| Model Number | KTEM07 energy meter |
| Display Type | Digital Only |
| Phase | Single Phase |
| Rated Voltage | AC 220V |
| Working Voltage | 100-265 Vac, 50/60 Hz |
| Rated Current | 1(63)A |
| Accuracy Class | 1.0 (for kWh) |
| Measuring Energy Range | 0-99999.9 kWh |
| Power Consumption | ≤ 1W, 6VA |
| Operating Temperature | -45℃ to 70℃ |
| Dimensions (approx.) | 8.5cm (H) x 3.7cm (W) x 6.5cm (D) |
| DIY Supplies | Electrical |
| Certification | CE |
3. Package Contents
The standard package includes:
- 1 x Ketotek Din Rail LCD Digital Single Phase Energy Meter (KTEM07)
- 1 x English User Manual
4. Installation
The Ketotek KTEM07 Energy Meter is designed for Din Rail mounting. Ensure all power is disconnected before installation to prevent electric shock.
- Mount the energy meter onto a standard 35mm Din Rail in your electrical panel.
- Connect the Live (L) and Neutral (N) input wires to the "IN" terminals as indicated on the device.
- Connect the Live (L) and Neutral (N) output wires from the "OUT" terminals to your load circuit.
- Ensure all connections are secure and properly insulated.
Warning: Installation should only be performed by qualified personnel to ensure safety and proper functionality.
5. Operation
5.1. Display and Button Functions
- Display: Shows Voltage (V), Current (A), Power (W), Energy (kWh), Leakage Current (mA), and Reconnect Time.
- M Button: Used to view and set parameters.
- + Button: Increases the value during parameter setting.
- - Button: Decreases the value during parameter setting.
- Power Button: Turns the device on or off.
5.2. Setting Parameters
The device allows customization of protection parameters. To enter the setting mode, press and hold the 'M' button. Use '+' and '-' buttons to adjust values and 'M' to confirm and move to the next parameter.
| Parameter | Range | Default Value |
|---|---|---|
| Over Voltage (OV) | 250V - 300V | 270V |
| Under Voltage (UV) | 150V - 190V | 170V |
| Current Limiting (A) | 1A - 63A | 50A |
| Leakage Current (IΔn) | OFF / 10mA - 99mA | 50mA |
| Reconnect Time | 5s - 90s | 30s |
| kWh Reset | 0 - 99999.9 | 0 (can be cleared) |
To clear the kWh reading, navigate to the kWh parameter in setting mode and adjust it to 0.
6. User Tips
- For accurate readings, ensure all wiring connections are tight and correct according to the diagram.
- Regularly check the display for any abnormal readings or error indicators.
- When setting protection parameters, consider the specifications of your connected appliances to avoid nuisance tripping or insufficient protection.
- The device is designed for indoor use in a dry environment. Avoid exposure to moisture or extreme temperatures outside the specified operating range.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on | No input voltage; incorrect wiring; internal fault. | Check input power supply; verify wiring connections; contact support if problem persists. |
| Display shows "OV" or "UV" | Over or under voltage condition detected. | Check incoming voltage; adjust OV/UV settings if necessary (ensure within safe limits). |
| Device trips frequently | Current limiting or leakage current settings too low; faulty appliance. | Increase current limit or leakage current threshold (if safe to do so); inspect connected appliances for faults. |
| Incorrect energy readings | Improper wiring; device malfunction. | Re-check wiring against diagram; if problem persists, contact support. |
8. Maintenance
- Keep the device clean and free from dust. Use a dry, soft cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Periodically check wiring connections for tightness, especially after initial installation or if the device has been moved.
- Ensure the operating environment remains within the specified temperature and humidity ranges.
9. Warranty and Support
This product comes with a 6-month warranty from the date of purchase. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by improper installation, misuse, unauthorized modifications, or external factors such as power surges.
For technical support or warranty claims, please contact your retailer or the manufacturer with your purchase details.
10. Frequently Asked Questions (FAQ)
- Q: What is the maximum current this meter can handle?
- A: The meter is rated for a maximum operating current of 63A.
- Q: Can I use this meter for a three-phase system?
- A: No, this is a single-phase energy meter and is not suitable for three-phase systems.
- Q: How do I reset the kWh reading?
- A: Enter the parameter setting mode by holding the 'M' button, navigate to the kWh setting, and use the '+' or '-' buttons to set it to 0.
- Q: What does "OV" or "UV" on the display mean?
- A: "OV" indicates an over-voltage condition, and "UV" indicates an under-voltage condition, as per the set protection parameters.
