California Instruments 751L AC Power Source

The California Instruments 751L is a single-phase AC power source designed for testing and simulating AC power conditions. It is part of the L Series of AC power sources from AMETEK Programmable Power, a division of AMETEK, Inc.. The 751L is known for its compact size, low heat dissipation, and light weight, making it suitable for applications where space and efficiency are important. This power source is engineered for a variety of applications, including DC power supply testing, production test, quality assurance verification, engineering, and ATE (Automatic Test Equipment) environments.

### Technical Specifications

**General:**
* **Manufacturer:** California Instruments (a brand of AMETEK Programmable Power)
* **Model:** 751L
* **Series:** L Series
* **Power Output:** Capable of delivering up to 750 VA (some sources indicate up to 850 VA for specific configurations like 751L-1M-HV)
* **Phase:** Single-phase AC output
* **Control:** Self-contained with an embedded oscillator, factory configured for specific requirements. Control can be managed via the front panel or the IEEE-488 bus. Supports Abbreviated Plain English programming and an ATLAS-based control language.
* **Output Parameters:** Programmable voltage, frequency, and current limits.

**Electrical Specifications:**
* **Input Voltage:** Typically 115 V or 230 V single phase. Some configurations may have universal input.
* **Output Voltage Ranges:** Up to 400 V RMS L-N. Standard ranges include 135 V/270 V L-N, with optional ranges available up to 400 V. Specific configurations like the -HV option can change the output transformer to 156 V/312 V L-N, and the -EHV option to 200 V/400 V L-N (for frequencies up to 1000 Hz).
* **Output Frequency Range:**
* 45 Hz to 550 Hz for some -3P and 751L models.
* 45 Hz to 5 kHz for some -3M and 751L models.
* Specific models may support frequencies up to 5000 Hz.
* Frequency resolution can be 0.01 Hz or 0.1 Hz depending on the range.
* **High Peak Current Capability:** Up to a 9:1 crest factor for driving high peak current loads.
* **High Efficiency:** Designed for high efficiency, generating less heat and consuming less input power.
* **Total Harmonic Distortion (THD):** Specific THD values are not detailed in the provided snippets for the 751L, but the L Series generally aims for high-quality output.
* **Measurements:** Full measurement capabilities are available with programmable controllers, allowing for monitoring of load parameters without additional instrumentation. Measurements typically include Volt RMS, Current RMS, Power, Apparent Power, Power Factor, Frequency, and Phase.

**Interfaces:**
* **IEEE-488 Bus:** Standard for bus programming, allowing for programming and measurement function readback. Compatible with VXI, MXI, and RS232 via recommended translators.
* **Front Panel Control:** Output parameters can be controlled via the front panel.
* **External Sense Connector:** Available for precise voltage regulation.

**Physical Characteristics:**
* **Compact Size:** Small front panel size and light weight compared to power output.
* **Rack Space Savings:** Up to 50% savings in rack space.

**Compatibility and Options:**
* **Controller Choices:** The L Series offers various controller types, including:
* **-P (Programmable Controller):** Standard programmable controller using True RMS sensing for accurate output voltage regulation. Transients are programmable over time or cycles.
* **-PT (Fast Transient Controller):** Uses a fast real-time servo for exact waveform definitions, ideal for applications like switching DC power supplies.
* **-M (Manual Controller):** Suitable for portable or benchtop applications with local control.
* **Options:**
* **-HV:** High voltage output transformer (156 V/312 V L-N).
* **-EHV:** Extra high voltage output transformer (200 V/400 V L-N).
* **-MODE:** Allows certain L-Series models to be configured for single- or three-phase output.
* **-RPV:** Remote programming voltage (0-10 VDC input) for amplitude control with a manual oscillator. Not available on all models.
* **-MT:** Primarily for military applications, not available on 751L.
* **-704:** MIL-STD-704 test routines embedded in -P and -PT controllers.
* **Programming Languages:** Abbreviated Plain English, ATLAS-based control language.

**Safety and Installation Notes:**
* Contains high voltage and current circuits that are potentially lethal.
* Chassis and cabinet must be properly grounded to minimize shock hazard.
* Facility AC input power must be de-energized before connecting or disconnecting cables.
* Qualified personnel are required for installation and servicing due to hazardous voltages that may be present even when power is off (capacitors can retain charge).
* Use safety glasses during open cover checks.
* Follow ESD safety procedures as the equipment contains ESD sensitive parts.

### Why Choose Aumictech for California Instruments 751L?

At Aumictech, we specialize in supplying high-end AC power sources like the California Instruments 751L. Whether you need reliable power simulation for product development, precision testing for quality assurance, or robust solutions for ATE systems, our team ensures the California Instruments 751L delivers maximum performance and accuracy for your application.