1. Introducció
The ITECH IT6862A is a single-channel programmable DC power supply designed for various laboratory, production, and maintenance applications. This model features a dual-range output, providing flexibility with either 32V/3A/96W or 12V/6A/72W. It offers high resolution (1mV/0.1mA) and includes RS232/USB interfaces for remote control and automation. This manual provides essential information for the safe and efficient operation of your IT6862A power supply.
Figure 1: ITECH IT6862A Programmable DC Power Supply in a laboratory setting.
2. Informació de seguretat
Please read all safety instructions carefully before operating the device. Failure to comply with these instructions may result in electric shock, fire, or personal injury.
- Seguretat general: Ensure the power supply is connected to a grounded power outlet. Do not operate in wet or damp condicions.
- Ventilació: Mantingueu una ventilació adequada al voltant de la unitat per evitar el sobreescalfament. No bloquegeu les obertures de ventilació.
- Cable d'alimentació: Use only the provided power cord. Inspect the cord for damage before each use.
- Manteniment: Refer all servicing to qualified personnel. There are no user-serviceable parts inside.
- Protecció de sobrecàrrega: The unit features Over Temperature Protection (OTP) and Over Voltage Protection (OVP). Do not attempt to bypass these safety features.
3. Producte acabatview
The ITECH IT6862A is a high-precision programmable DC power supply offering stable and reliable power output. Key features include:
- Single Channel Output: Provides a single, regulated DC output.
- Dual Range Voltage & actual: Offers two distinct operating ranges (32V/3A/96W or 12V/6A/72W) for enhanced flexibility.
- Alta resolució: 1mV/0.1mA resolution for precise control.
- List Function: Allows users to program a sequence of voltage, current, and delay steps for automated testing.
- Remote Sense: Compensa el voltage drops in load leads, ensuring accurate voltage delivery at the load.
- Proteccions múltiples: Includes Over Temperature Protection (OTP) and Over Voltage Protection (OVP) for safe operation.
- Interfícies de comunicació: Equipped with RS232 and USB interfaces for remote control and data logging.
Panell frontal
Figure 2: Front panel of the ITECH IT6862A, showing display, control buttons, and output terminals.
The front panel features a clear digital display for voltage and current, a numeric keypad, function buttons (V-SET, I-SET, Recall, Meter, On/Off, etc.), and output terminals for connecting to the load.
Panell posterior
Figure 3: Rear panel of the ITECH IT6862A, showing power input, communication ports, and warning labels.
The rear panel includes the AC power input, RS232 and USB communication ports, and a terminal block for remote sense connections. Important warning labels regarding servicing and fuse replacement are also present.
4. Configuració
4.1 Desembalatge i inspecció
- Traieu amb cura la font d'alimentació del seu embalatge.
- Inspect the unit for any signs of physical damage. If damage is found, contact your supplier immediately.
- Verify that all accessories listed in the package contents (power cord, USB cable, ex-factory test report) are present.
4.2 Connexió de potència
- Ensure the power switch on the front panel is in the OFF position.
- Connect the provided power cord to the AC input on the rear panel of the power supply.
- Plug the other end of the power cord into a grounded AC power outlet. The power supply supports 120V (AC) maximum input voltage.
4.3 Connexió de la càrrega
- Connect the positive (+) terminal of your load to the red output terminal on the front panel.
- Connect the negative (-) terminal of your load to the black output terminal on the front panel.
- For remote sensing, connect the sense wires to the dedicated remote sense terminals on the rear panel. This compensates for voltage drop across the load leads.
4.4 Interfície de comunicació
The IT6862A supports RS232 and USB interfaces for remote control and data acquisition.
- Connexió USB: Use the provided USB cable to connect the power supply to a computer.
- Connexió RS232: Use an RS232 serial cable to connect the power supply to a computer.
Figura 4: Example of RS232 and USB communication ports on the rear panel.
5. Instruccions de funcionament
5.1 Encès/Apagat
- Premeu el botó Poder button on the front panel to turn the unit ON. The display will show a system scan and then the default voltage i la configuració actual.
- To turn the unit OFF, press the Poder botó de nou.
5.2 Configuració Voltage i Actual
- Premeu el botó V-SET botó per introduir el voltage setting mode. Use the numeric keypad or the rotary knob to adjust the desired voltage. Premeu Entra per confirmar.
- Premeu el botó ESTABLEIXO button to enter current setting mode. Use the numeric keypad or the rotary knob to adjust the desired current. Press Entra per confirmar.
- Premeu el botó On/Off button to enable or disable the output.
5.3 Dual Range Operation
The IT6862A offers two output ranges: 32V/3A/96W and 12V/6A/72W. To switch between ranges:
- Ensure the power output is OFF.
- Premeu Canvi + 4 (for high range) or Canvi + 7 (for low range). An asterisk (*) in the top left corner of the display indicates high range.
5.4 List Function (Programming)
The List Function allows you to create and execute a sequence of output steps.
- To enter the List Edit mode, press Canvi + Entra.
- You can set voltage, current, and delay time for each step.
- Save and load list files segons sigui necessari.
Figure 5: Visual representation of the List Function for sequential programming.
5.5 Detecció remota
Remote sense automatically compensates for voltage drops in the load leads, ensuring the voltage at the load is precisely what is set on the power supply.
Figure 6: Diagram illustrating the Remote Sense connection for accurate voltage lliurament.
5.6 Configuració de protecció
The power supply includes essential protection features:
- Més del voltage Protecció (OVP): Prevents the output voltage from exceeding a set limit.
- Protecció contra sobretemperatura (OTP): Apaga la unitat si la temperatura interna supera els límits de seguretat.
To set OVP, press Canvi + V-SET. Adjust the OVP limit using the rotary knob or keypad and press Entra.
5.7 Saving and Recalling Data
You can save frequently used settings to memory and recall them later.
- To save current settings, press Canvi + Recorda. Select a memory location (e.g., 1-9) and press Entra.
- To recall saved settings, press Recorda. Select the desired memory location and press Entra.
5.8 Bloqueig del teclat
Per evitar canvis accidentals a la configuració, podeu bloquejar el teclat numèric.
- Per bloquejar el teclat, premeu Canvi + On/Off. A 'Lock' indicator will appear on the display.
- Per desbloquejar el teclat, premeu Canvi + On/Off de nou.
5.9 Operational Video Demonstration
Watch this video for a visual guide on operating the ITECH IT6800A series power supply, including basic functions, setting parameters, and using advanced features.
Video 1: Operational demonstration of the ITECH IT6800A series DC Power Supply.
6. Manteniment
6.1 Neteja
Regularly clean the exterior of the power supply with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure no liquids enter the unit.
6.2 Canvi de fusibles
If the power supply fails to turn on, check the fuse located near the AC input on the rear panel. Replace only with a fuse of the same type and rating as indicated on the unit (e.g., 250V/3.15A).
7. Solució De Problemes
If you encounter issues with your ITECH IT6862A, refer to the following common problems and solutions:
- Sense energia: Check the power cord connection, power outlet, and the unit's fuse.
- Sense sortida: Ensure the output is enabled (On/Off button) and that OVP/OCP limits are not being triggered. Check load connections.
- Sortida incorrecta: Verifiqueu el voltage and current settings. Check remote sense connections if used.
- Problemes de comunicació: Ensure correct cable connections (USB/RS232) and proper driver installation on your computer. Verify communication settings (baud rate, etc.) in the system menu.
For persistent issues, contact ITECH technical support.
8. Especificacions
The following table outlines the key specifications for the ITECH IT6862A Programmable DC Power Supply:
| Característica | Especificació |
|---|---|
| Nom del model | IT6862A |
| Output Ratings (Dual Range) | 0~32V/0~3A/0~96W or 0~12V/0~6A/0~72W |
| Resolució | 1mV/0.1mA |
| Interfície | RS232/USB |
| Load Regulation (Voltage) | ≤0.01%+3mV |
| Load Regulation (Current) | ≤0.01%+2mA |
| Line Regulation (Voltage) | ≤0.01%+3mV |
| Line Regulation (Current) | ≤0.01%+2mA |
| Programming Resolution (Voltage) | 1mV |
| Programming Resolution (Current) | 0.1 mA |
| Readback Resolution (Voltage) | 1mV |
| Readback Resolution (Current) | 0.1 mA |
| Programming Accuracy (12 months, 25°C±5°C, Voltage) | ≤0.04%+8mV |
| Programming Accuracy (12 months, 25°C±5°C, Current) | ≤0.1%+5mA |
| Readback Accuracy (12 months, 25°C±5°C, Voltage) | ≤0.04%+8mV |
| Readback Accuracy (12 months, 25°C±5°C, Current) | ≤0.1%+5mA |
| Ripple (20Hz-20M, Voltage) | ≤3mVp-p |
| Ripple (20Hz-20M, Current) | ≤7mBraços |
| Transient Response Time (Recover to 75mV) | ≤50uS |
| Rise Time (10%-90%) | ≤90 ms |
| Fall Time (90%-10%) | ≤200 ms |
| Sampli Rate | 10HZ/S |
| Protecció | OTP/OVP |
| Dimensions (A×A×P) | 214.5mm×88.2mm×354.6mm (8.5in×3.5in×14in) |
| Pes | 8.5 kg (18.7 lliures) |
| Volum d'entrada màximtage | 120 volts (CA) |
| Dispositius compatibles | Ordinador personal |
9. Garantia i assistència
ITECH products are designed and manufactured to the highest quality standards. For warranty information, please refer to the documentation included with your product or visit the official ITECH weblloc.
For technical assistance, troubleshooting, or service inquiries, please contact ITECH customer support. Ensure you have your product model number (IT6862A) and serial number ready when contacting support.
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