The California Instruments 503T is a 500 VA, solid-state AC power source designed to provide precise control over voltage, frequency, and phase angle for a variety of testing and simulation applications. It offers a low-distortion sine-wave output and is suitable for use in automated test equipment (ATE) systems. The 503T is typically used in conjunction with a California Instruments oscillator to generate the desired AC power waveforms.
### Technical Specifications
**Power Output:**
* **Total Power:** 500 VA
* **Range Rated Capability:** Delivers full power output down to 78% of rated voltages
**Output Voltage Ranges:**
* The 503T features multiple output voltage ranges, which can be factory-configured or adjusted in the field. Standard ranges include:
* 0 to 30 volts RMS line-to-neutral (0 to 52 volts RMS line-to-line, 167 VA per phase)
* 0 to 45 volts RMS line-to-neutral (0 to 78 volts RMS line-to-line, 167 VA per phase)
* 0 to 75 volts RMS line-to-neutral (0 to 130 volts RMS line-to-line, 167 VA per phase)
* 0 to 135 volts RMS line-to-neutral (0 to 234 volts RMS line-to-line, 167 VA per phase)
* 0 to 135 volts RMS single phase (500 VA single phase)
* **Maximum Line-to-Neutral Voltage:** 135 volts RMS
* **Maximum Line-to-Line Voltage:** 234 volts RMS
* **Adjustable Output Voltages:** Up to 270V RMS
**Frequency:**
* **Frequency Range:** 45 Hz to 5 kHz for full power output. The unit can operate over a broader range of 20 Hz to 20 kHz, but output voltage and VA must be derated.
* **Frequency Response:**
* ±0.5 dB from 45 Hz to 5 kHz
* ±1.0 dB from 45 Hz to 10 kHz
* **Output Frequency Accuracy:** 0.001% (crystal-controlled synthesized frequency)
* **Frequency Resolution:** 0.1 Hz to 1 Hz
**Harmonics and Distortion:**
* **Total Harmonic Distortion (THD):**
* Less than 0.40% from 200 Hz to 1 kHz
* Less than 0.75% from 45 Hz to 10 kHz
**Stability and Regulation:**
* **Amplitude Stability:** ±0.25% for 24 hours at constant line, load, and ambient temperature conditions
* **Line Regulation:** ±0.25% of full output for a ±10% line change
* **Load Regulation:** ±1% over the range from 45 Hz to 5 kHz and ±2% over the range from 45 Hz to 10 kHz at unity power factor. An adjustment allows load regulation to be set to zero under specific conditions.
**Phase Accuracy:**
* 1.0 degree plus the phase accuracy of the plug-in oscillator, between any two phases of a three-phase system with a symmetrical load
* Adjustable Phase Angle
**AC Noise Level:**
* 60 dB below full output when tested at full rated power output
* 80 dB below full output with a shorted input
**Protection:**
* **Overload and Short Circuit Protection:** Complete protection provided with instantaneous automatic reset upon removal of the overload
**AC Input:**
* **AC Input Line:** 105 to 125 volts RMS. May be wired for 208 VAC, 220 VAC, 230 VAC, or 240 VAC on special order.
* **AC Input Frequency:** 48 to 65 Hz (400 Hz available on special order)
* **AC Input Power:** 2000 watts maximum under worst-case line and full rated load conditions
**Physical Characteristics:**
* **Dimensions:** 8.75 inches high x 19 inches wide x 21 inches deep
* **Net Weight:** 110 lbs
* **Shipping Weight:** 120 lbs
* **Front Panel Finish:** Grey (26440 per Federal Standard 595) with black silk-screened lettering
**Environmental:**
* **Operating Temperature Range:** 0 to 55°C
**Interfaces:**
* **Programmable Interface:** IEEE-488 and BCD
**Other Features:**
* **Output Waveform:** Sine-Wave or Square-Wave Output
* **Current Source Configurations:** Available
* **Front Panel Meter:** 0 to 240 VAC voltmeter with ±1% accuracy at 400 Hz and ±3% accuracy from 45 Hz to 10 kHz. Can monitor line-to-neutral or line-to-line voltage.
* **Multi-Unit and Multi-Phase Configurations:** Supported
Why Choose Aumictech for the California Instruments 503T?
At Aumictech, we specialize in supplying high-end AC power source equipment. Whether you need precise voltage and frequency control, the ability to simulate diverse AC power conditions, or robust protection for your testing setup, our team ensures the California Instruments 503T delivers maximum performance for your application.
