Fluke 28IIEX

Fluke 28IIEX Analog Input Module

Product  Description：

Fluke Analog Input Modules are highly accurate, industrial-grade data acquisition components designed to measure and record continuous physical phenomena. These modules capture low-level analog signals from a wide variety of sensors and convert them into precise digital data. Engineered with Fluke’s legendary calibration and measurement technology, these modules are widely used in research, development, and industrial troubleshooting where absolute signal integrity and minimal measurement uncertainty are required.

Product Parameters

The technical parameters of a Fluke Analog Input Module emphasize extreme precision, high resolution, and universal input capabilities:

• Universal Input Support: Configurable to directly measure DC voltage, DC current, resistance, and frequency, as well as direct hookups for thermocouples and resistance temperature detectors (RTDs).

• High-Resolution Conversion: Features advanced internal analog-to-digital converters, typically offering 18-bit to 22-bit resolution to capture microscopic signal changes.

• Measurement Accuracy: Exceptional DC voltage accuracy, often rated down to 0.015 percent of the reading, ensuring traceably precise data collection.

• Sampling and Scan Rates: Supports flexible scan rates, from high-speed burst sampling at several kilohertz to slow, highly filtered logging over extended periods.

• Channel Isolation: High channel-to-channel and channel-to-ground galvanic isolation, frequently rated up to 300V or 600V AC/DC, to prevent crosstalk and protect internal circuits.

• Input Impedance: High input impedance, typically exceeding 10 Megohms for low-voltage ranges, preventing the module from loading down and distorting the circuit under test.

Product Advantages

Fluke Analog Input Modules deliver specific engineering advantages tailored for precision testing and validation:

• Traceable Measurement Quality: Built using Fluke's world-class reference standards, ensuring that data collected is highly reliable and easily accurate enough for laboratory validation.

• No External Signal Conditioning Needed: The universal input design allows direct connection to sensors without requiring external transmitters, reducing error stacking and simplifying setup.

• Superior Noise Rejection: Advanced hardware filtering along with selectable power line frequency (50 Hz or 60 Hz) digital filtering ensures clean data even in high-noise factory environments.

• Ruggedized Input Protection: Input channels are heavily protected against accidental overvoltages, guarding the module against damage if a probe is accidentally connected to a higher voltage line.

• Flexible Software Integration: Fully supported by Fluke DAQ software and easily integrated into custom lab automation environments using standard command sets.

Product Applications

These modules are primarily utilized in precision testing, environmental monitoring, and diagnostic scenarios:

• Thermal Profiling: Mapping temperature distributions in environmental chambers, industrial ovens, and pharmaceutical storage warehouses using multi-channel thermocouple setups.

• Product Development and Testing: Monitoring voltage drops, temperature rises, and sensor outputs during the prototype phase of electronic and electromechanical products.

• Calibration and Metrology: Serving as a multi-channel transfer standard to verify and calibrate field transmitters, data loggers, and process controllers.

• Power Supply Monitoring: Tracking the long-term stability and drift of DC power supplies and battery storage systems under varying load conditions.

• Automotive and Aerospace Testing: Recording structural stress from strain gauges and fluid pressures from transducers during mechanical component life-cycle testing.

Important Precautions

To achieve maximum measurement precision and protect the hardware from damage, user guidelines must be followed carefully:

• Thermal Equilibrium: For high-accuracy thermocouple measurements, allow the module to sit in its operating environment for at least 30 minutes to stabilize the internal cold-junction compensation reference.

• Shielding and Grounding: Always use shielded twisted-pair cables for low-level signals like microvolts or ohms. Connect the shield line only at a single point to prevent ground loops from introducing measurement offsets.

• Proper Terminal Tightening: Ensure that sensor wires are firmly secured in the terminal blocks. Loose connections introduce contact resistance, which severely degrades the accuracy of RTD and resistance measurements.

• Avoid Input Overloading: Never apply voltages that exceed the maximum channel-to-channel isolation rating, as this can cause catastrophic failure across multiple input channels.

• Correct Channel Configuration: Double-check that the software channel configuration matches the physical wiring. Accidentally applying a current loop source to a channel configured for low-voltage measurement can blow the internal protection fuses.

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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