1. Umarnin Tsaro
Please read and understand all safety instructions before operating the ITECH IT-M7722L Programmable AC Power Supply. Failure to follow these instructions may result in electric shock, fire, or damage to the product.
- Kasa: Ensure the power supply is properly grounded to prevent electric shock.
- Tushen wutar lantarki: Connect the unit only to a power source with the specified voltage da mita.
- Samun iska: Kada a toshe hanyoyin samun iska. Yana da mahimmanci a sami isasshen iska don hana zafi fiye da kima.
- Muhalli: Operate the device in a dry, well-ventilated area, away from flammable materials, moisture, and extreme temperatures.
- Hidima: Refer all servicing to qualified service personnel. Do not attempt to open or repair the unit yourself.
- Kashe Gaggawa: Familiarize yourself with the location of the power switch for immediate shutdown in case of an emergency.
2. Samfurin Ya Ƙareview
The ITECH IT-M7722L is a compact, high-performance programmable AC power supply designed for laboratory and industrial applications. It offers precise control over AC and DC output, along with advanced measurement capabilities.

Hoto 2.1: Gaba view of the ITECH IT-M7722L Programmable AC Power Supply, showing the display, control buttons, and rotary encoder.
Mabuɗin fasali:
- Karamin Tsara: 1U Half-Rack size, weighing approximately 10 lbs, making it portable and suitable for bench testing or system integration.
- Versatile Output Modes: Supports AC, DC, and AC+DC output modes, expanding its application range for various testing requirements, including DC offset elements.
- Built-in AC Power Meter: Accurately measures and displays 12 parameters, including RMS voltage, RMS current, output frequency, active power, and power factor, eliminating the need for an external power meter.
- Cikakken Kariya: Includes Over Voltage Protection (OVP rms, OVP peak), Under Voltage Protection (UVP rms), Over Current Protection (OCP rms, OCP peak, OCP delay), Over Power Protection (OPP), Over Temperature Protection (OTP), and smart fan dysfunctional protection.
- High Resolution and Accuracy: Offers precise control with 0.1V/10mA resolution and high accuracy for reliable test results.
- Hanyoyi masu yawa: Optional RS232, CAN, LAN, GPIB, USB, and external analog interfaces for remote control and automation.

Figure 2.2: The IT-M7700 series integrates the functionalities of a DC power supply, AC power supply, power meter, and waveform generator into a single unit.
3. Saita
3.1 Cire kaya da dubawa
Carefully unpack the IT-M7722L power supply and its accessories. Verify that all items listed in the package contents are present:
- IT-M7722L Lab AC Power Supply
- Igiyar Wutar Lantarki
- Ex-Factory Test Report
Inspect the unit for any signs of physical damage. If any damage is found or items are missing, contact your supplier immediately.
3.2 Shigarwa na Jiki
The IT-M7722L features a 1U Half-Rack design, allowing for flexible installation.
- Benchtop Use: Place the unit on a stable, level surface, ensuring adequate space around the unit for ventilation.
- Hawan Rack: For rack integration, use appropriate rack mounting kits (sold separately) to secure the unit in a standard 19-inch rack. Ensure proper airflow within the rack.

Figure 3.1: Physical dimensions of the IT-M7722L, illustrating its compact 1U Half-Rack form factor.
3.3 Haɗin Wuta
Connect the provided power cord to the AC input receptacle on the rear panel of the power supply and then to a grounded AC power outlet. Ensure the power source matches the voltage requirements specified on the unit's label.
4. Umarnin Aiki
4.1 Kunnawa / Kashewa
- Kunna Wuta: Press the 'Power' button located on the front panel. The display will illuminate, indicating the unit is active.
- Kashe Wuta: Press and hold the 'Power' button until the display turns off.
4.2 Setting Output Parameters
Use the front panel controls to set voltage, current, and frequency.
- Danna maɓallin V-set maballin don shigar da voltage setting mode. Use the rotary encoder to adjust the voltage daraja.
- Danna maɓallin I-set button to enter current setting mode. Use the rotary encoder to adjust the current value.
- Danna maɓallin F-set button to enter frequency setting mode. Use the rotary encoder to adjust the frequency value.
- Latsa Shiga to confirm settings or Esc sokewa.
4.3 Selecting Output Modes (AC, DC, AC+DC)
The IT-M7722L supports multiple output modes:
- Danna maɓallin AC button for pure AC output.
- Danna maɓallin DC button for pure DC output.
- Danna maɓallin AC+DC button for combined AC and DC output.

Hoto na 4.1: Examples of AC, DC, and AC+DC output waveforms, demonstrating the versatility of the power supply.
4.4 Using the Built-in AC Power Meter
The integrated power meter automatically displays key electrical parameters on the screen. To view specific parameters or cycle through display modes:
- Yi amfani da Nunawa button to cycle through various measurement parameters such as RMS voltage, RMS current, output frequency, active power, and power factor.
- The display provides real-time readings, eliminating the need for external measurement devices.
4.5 Output On/Off
After setting the desired parameters, press the Kunna/Kashe button to enable or disable the output to the load.
5. Kulawa
5.1 Tsaftacewa
To maintain optimal performance and longevity, keep the unit clean.
- Shafa waje da taushi, damp zane. Kada a yi amfani da masu tsabtace abrasive ko sauran ƙarfi.
- Ensure no liquids enter the unit.
5.2 Ventilation and Fan Maintenance
The IT-M7722L relies on proper ventilation to prevent overheating. Regularly check that the air intake and exhaust vents are clear of dust and obstructions.
- The unit features smart fan dysfunctional protection. If a fan issue is detected, the unit may display an error or shut down to prevent damage.
- Do not attempt to open the unit to clean internal components. Refer to qualified service personnel if internal cleaning is required.
6. Shirya matsala
This section provides solutions to common issues. For problems not covered here, contact ITECH support.
| Matsala | Dalili mai yiwuwa | Magani |
|---|---|---|
| Naúrar baya kunnawa | Power cord not connected; No power from outlet; Internal fuse blown | Check power cord connection; Verify outlet power; Contact service personnel |
| Babu fitarwa voltage/yanzu | Output is off; Protection triggered (OVP, OCP, OTP, etc.); Incorrect settings | Press 'On/Off' button; Check for error messages and clear fault; Verify voltage/na yanzu saituna |
| Overheating / Fan noise | Blocked ventilation; Excessive ambient temperature; Fan malfunction | Ensure clear vents; Operate in cooler environment; Contact service personnel for fan issues |
| Karatuttuka mara inganci | Calibration required; External interference | Refer to calibration procedures (if applicable); Check for strong electromagnetic fields |
6.1 Abubuwan Kariya
The IT-M7722L incorporates comprehensive protection mechanisms to safeguard the unit and connected devices. If a protection event occurs, the output will be disabled, and an error message may be displayed.

Figure 6.1: Visual representation of the various protection features: OVP, UVP, OCP, OPP, and OTP.
- OVP (Sama da Voltage Kariya): Protects against excessive output voltage.
- UVP (Karƙashin Voltage Kariya): Protects against output voltage dropping below a set threshold.
- OCP (Sama da Kariya na Yanzu): Protects against excessive output current.
- OPP (Over Power Protection): Protects against excessive output power.
- OTP (Sama da Kariyar Zazzabi): Shuts down the unit if internal temperature exceeds safe limits.
To clear a protection fault, identify and resolve the underlying issue, then cycle the output power or restart the unit if necessary.
7. Ƙayyadaddun bayanai
Detailed technical specifications for the ITECH IT-M7722L Programmable AC Power Supply.
| Siga | Daraja |
|---|---|
| Samfura | IT-M7722L |
| Voltage Range | 0-300V |
| Range na Yanzu | 0-6A |
| Powerarfin Wuta | Saukewa: 0-600A |
| Voltage Ƙaddamarwa | 0.1V |
| Ƙudurin Yanzu | 10mA |
| Voltage Daidaito | ≤0.03%+12mV |
| Daidaiton Yanzu | ≤0.05%+20uA |
| Hanyoyin fitarwa | AC, DC, AC+DC |
| Interfaces (Optional) | RS232, CAN, LAN, GPIB, USB, external analog |
| Factor Factor | 1U Half-Rack |
| Hanyar sanyaya | Iska |
| Girman Kunshin | 25 x 14 x 8 inci |
| Nauyin Abu | 14 Pounds (Unit weight is 10LB only, package weight is 14 Pounds) |
8. Garanti da Tallafawa
8.1 Bayanin Garanti
The ITECH IT-M7722L comes with an Ex-Factory Test Report, confirming its quality and performance at the time of manufacture. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or contact ITECH directly.
8.2 Tallafin Fasaha
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact ITECH customer support. You can find contact information on the official ITECH website ko ta wurin mai rarrabawa na gida.
Ziyarci ITECH Store on Amazon don ƙarin bayanin samfur da albarkatun tallafi.





