1. Istruzioni di sicurezza
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.
- Messa a terra: Assicurarsi che l'alimentatore sia correttamente collegato a terra per evitare scosse elettriche.
- Fonte di energia: Connect the unit only to a power source with the specified voltage e frequenza.
- Ventilazione: Non ostruire le aperture di ventilazione. Un flusso d'aria adeguato è essenziale per evitare il surriscaldamento.
- Ambiente: Utilizzare il dispositivo in un luogo asciutto e ben ventilato, lontano da materiali infiammabili, umidità e temperature estreme.
- Manutenzione: Per qualsiasi intervento di assistenza, rivolgersi a personale qualificato. Non tentare di aprire o riparare l'unità da soli.
- Spegnimento di emergenza: Familiarizzare con la posizione dell'interruttore di alimentazione per poterlo spegnere immediatamente in caso di emergenza.
2. Prodotto finitoview
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.
Figura 2.1: Fronte view of the ITECH IT-M7722L Programmable AC Power Supply, showing the display, control buttons, and rotary encoder.
Caratteristiche principali:
- Design compatto: 1U Half-Rack size, weighing approximately 10 lbs, making it portable and suitable for bench testing or system integration.
- Modalità di output versatili: 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.
- Protezione completa: Include oltre il volumetage 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.
- Interfacce multiple: 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. Impostazione
3.1 Disimballaggio e ispezione
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
- Cavo di alimentazione
- 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 Installazione fisica
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.
- Montaggio su 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 Collegamento di alimentazione
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 i requisiti specificati sull'etichetta dell'unità.
4. Istruzioni per l'uso
4.1 Accensione/Spegnimento
- Accensione: Press the 'Power' button located on the front panel. The display will illuminate, indicating the unit is active.
- Spegni: Press and hold the 'Power' button until the display turns off.
4.2 Setting Output Parameters
Use the front panel controls to set voltage, corrente e frequenza.
- Premere il tasto V-set pulsante per inserire il voltage setting mode. Use the rotary encoder to adjust the voltage valore.
- Premere il tasto Ho impostato button to enter current setting mode. Use the rotary encoder to adjust the current value.
- Premere il tasto F-set button to enter frequency setting mode. Use the rotary encoder to adjust the frequency value.
- Premere Entrare to confirm settings or Esc annullare.
4.3 Selecting Output Modes (AC, DC, AC+DC)
The IT-M7722L supports multiple output modes:
- Premere il tasto AC button for pure AC output.
- Premere il tasto DC button for pure DC output.
- Premere il tasto AC + DC button for combined AC and DC output.
Figura 4.1: Esamples 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:
- Utilizzare il Display 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 Acceso/Spento button to enable or disable the output to the load.
5. Manutenzione
5.1 Pulizia
To maintain optimal performance and longevity, keep the unit clean.
- Pulisci l'esterno con un panno morbido eamp panno. Non usare detergenti abrasivi o solventi.
- Assicurarsi che nessun liquido penetri nell'unità.
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. Risoluzione Dei Problemi
This section provides solutions to common issues. For problems not covered here, contact ITECH support.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| L'unità non si accende | Power cord not connected; No power from outlet; Internal fuse blown | Check power cord connection; Verify outlet power; Contact service personnel |
| Nessun volume di uscitatage/corrente | Output is off; Protection triggered (OVP, OCP, OTP, etc.); Incorrect settings | Press 'On/Off' button; Check for error messages and clear fault; Verify voltage/impostazioni attuali |
| Overheating / Fan noise | Blocked ventilation; Excessive ambient temperature; Fan malfunction | Ensure clear vents; Operate in cooler environment; Contact service personnel for fan issues |
| Letture imprecise | Calibration required; External interference | Refer to calibration procedures (if applicable); Check for strong electromagnetic fields |
6.1 Funzionalità di protezione
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 (oltre voltageProtezione): Protegge da un volume di uscita eccessivotage.
- UVP (sotto il voltageProtezione): Protects against output voltage dropping below a set threshold.
- OCP (protezione da sovracorrente): Protects against excessive output current.
- OPP (protezione da sovratensione): Protects against excessive output power.
- OTP (Protezione da sovratemperatura): Spegne l'unità se la temperatura interna supera i limiti di sicurezza.
To clear a protection fault, identify and resolve the underlying issue, then cycle the output power or restart the unit if necessary.
7. Specifiche
Detailed technical specifications for the ITECH IT-M7722L Programmable AC Power Supply.
| Parametro | Valore |
|---|---|
| Modello | IT-M7722L |
| Voltage Gamma | 0-300 V |
| Intervallo attuale | 0-6A |
| Intervallo di potenza | 0-600VA |
| Voltage Risoluzione | 0.1V |
| Risoluzione attuale | 10mA |
| Voltage Precisione | 0.03%+12mV |
| Precisione attuale | ≤0.05%+20uA |
| Modalità di uscita | AC, DC, AC+DC |
| Interfaces (Optional) | RS232, CAN, LAN, GPIB, USB, external analog |
| Fattore di forma | 1U Half-Rack |
| Metodo di raffreddamento | Aria |
| Dimensioni del pacco | 25 x 14 x 8 pollici |
| Peso dell'articolo | 14 Pounds (Unit weight is 10LB only, package weight is 14 Pounds) |
8. Garanzia e supporto
8.1 Informazioni sulla garanzia
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 Supporto tecnico
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact ITECH customer support. You can find contact information on the official ITECH websito o tramite il tuo distributore locale.
Visitare il ITECH Store on Amazon per maggiori informazioni sul prodotto e risorse di supporto.
