Fluke 773

Fluke 773 Output Module

Product  Description：

Fluke Output Modules are precision-engineered hardware components designed to expand the signal generation and source capabilities of calibration systems, data acquisition units, and industrial testing equipment. These modules act as highly accurate signal sources, converting digital commands from a main control unit into precise, stable electrical outputs such as voltage, current, or simulated resistance. They are widely utilized in calibration laboratories and automated test environments where reference signals must be generated with metrology-grade accuracy.

Product Parameters

The technical profile of a Fluke Output Module centers on extreme precision, low drift, and high resolution:

• Output Signal Types: Capable of generating precise DC voltage, AC voltage, DC current, AC current, and simulating thermocouple or RTD temperature sensors.

• Voltage Output Range: Typically spans from microvolt levels (0 to 100 millivolts) for sensor simulation up to higher standard test voltages such as 10V or 20V DC.

• Current Output Capability: Supports standard industrial current loops, typically sourcing from 0 to 24 milliamperes, with specialized high-output modules capable of driving larger currents.

• Resolution and Accuracy: Features exceptionally high resolution, often utilizing 16-bit to 24-bit digital-to-analog converters (DACs) to achieve basic accuracies within thousands of a percent of the setting.

• Settling Time: Fast response times, often requiring only a few milliseconds for the output signal to stabilize completely within specified accuracy limits after a step change.

• Temperature Coefficient: Extremely low thermal drift, ensuring the output remains stable even when ambient temperatures fluctuate within the laboratory environment.

Product Advantages

Fluke Output Modules are preferred in high-stakes testing scenarios due to their superior metrological performance:

• Metrology-Grade Precision: Engineered using Fluke’s proprietary reference circuits, providing unmatched stability and repeatability for validating other instruments.

• Automated Calibration Integration: Designed to work seamlessly with Fluke calibration software suites, enabling fully automated testing procedures without manual operator adjustment.

• Independent Channel Isolation: Advanced electrical isolation between output channels prevents ground loops and cross-channel interference, protecting the accuracy of parallel test setups.

• Robust Fault Protection: Equipped with built-in protection against external voltage feedback and accidental short circuits, shielding the internal precision electronics from operator wiring errors.

• Versatile Signal Simulation: The ability to simulate various sensor types directly eliminates the need for multiple discrete calibration instruments, reducing equipment overhead.

Product Applications

These modules are critical components in benchmarking, validation, and calibration workflows:

• Calibration Laboratories: Used as the reference standard to calibrate handheld digital multimeters, process meters, and data loggers.

• Automated Test Equipment (ATE): Integrated into factory testing racks to provide exact stimulus signals for checking manufactured printed circuit boards and electronic sub-assemblies.

• Process Instrumentation Testing: Simulating temperature sensors (RTDs and thermocouples) and pressure transducers to verify the calibration of field transmitters in industrial plants.

• Research and Development: Providing ultra-stable, low-noise power or voltage signals to sensitive prototype circuits during development and characterization phases.

• Aerospace and Defense Testing: Validating the accuracy of avionics telemetry equipment and control panels that require strict compliance with international measurement standards.

Important Precautions

To maintain the high accuracy of the module and avoid damaging the precision circuitry, the following guidelines must be followed:

• Strict Warm-up Requirements: To achieve the specified metrological accuracy, the module must be allowed to warm up for the period recommended in the manual, typically between 30 and 60 minutes, to ensure thermal equilibrium.

• Avoid External Back-EMF: Never connect the output terminals to a live circuit that could feedback power into the module, as high external voltages can destroy the precision output amplifiers despite built-in protection.

• Regular Calibration Cycles: Because these modules are used as reference sources, they must be sent to an accredited calibration facility periodically, usually every 12 months, to track and correct any long-term component drift.

• Thermal Gradient Mitigation: Avoid installing the test rack near air conditioning vents, heating elements, or direct sunlight. Sudden temperature gradients can affect the output stability and induce thermoelectric voltages at the terminal connections.

• Lead Resistance Awareness: When generating low-resistance simulations or high-current outputs, ensure that the test leads used are as short and thick as possible to minimize lead resistance errors in the measurement circuit.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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