Waveform Generators

Features, Functions, and Options

Amplitude

The output level of the Instrument may be programmed from 20mV to 20Vp-p into high impedance, or 10mV to 10V into 50 Ω. Offset may be applied to the output to shift the signal either positive or negative. Offset and amplitude are inter-related, so make sure you understand the offset-amplitude ranges before you apply offset to your signal. A special fine offset generator is built into each channel, which allows programming of extremely small offset increments. This feature extends the offset resolution to 6 digits and is very useful in applications such as mixer balancing where few micro-volts could sway the balance either way.

Trigger Modes

Besides its normal continuous mode, the Instrument responds to a variety of trigger sources. The output waveform may be gated, triggered, or generate a counted burst of waveforms. A built-in trigger generator, having a programmable period can be used as a replacement of an external trigger source. The internal trigger generator can be programmed with resolution of 7 digits.

Arbitrary Waveforms

The Instrument generates arbitrary waveforms with 14 bits of vertical resolution. Any waveform it generates must first be downloaded to waveform memory. The arbitrary waveform memory is a bank of 14-bit words. Each word represents a point on the horizontal waveform scale. Each word has a horizontal address that can range from 0 to 1,048,576 for the 396 (0 to 4,191,280 for the 397) and a vertical address that can range from -8192 to +8191 (14 bits). Using a high speed clocking circuit, the digital contents of the arbitrary waveform memory are extracted and routed to the Digital to Analog Converter (DAC). The DAC converts the digital data to an analog signal, and the output amplifier completes the task by amplifying or attenuating the signal at the output connector.

Memory Segmentation

There is no need to use the complete memory every time an arbitrary waveform is generated. Waveform memory can be divided into up to 4096 smaller segments and different waveforms can be loaded into each segment. The various segments may then be loaded into a sequence table to generate long and complex waveforms. The sequence table can link up to 4096 segments for the 396 (2048 for the 397), while each segment can loop up to 1 million times.

Remote Control

The Instrument must be used in conjunction with a host computer. All of its functions, modes and parameters are fully programmable using SCPI commands and syntax. There are three ways to program the Instrument, the first being low-level programming of each individual parameter using SCPI commands. The second alternative is to use ArbExplorer for high-level programming. ArbExplorer is a software package supplied with the Instrument that simulates a set of mechanical front panels. It has all the necessary push buttons, displays and dials to operate the Instrument as if you were using it on the bench. The third alternative is using application specific drivers, such LabVIEW or IVI.

The Instrument must be programmed to generate waveforms. Therefore, it is recommended that the user becomes familiar with its basic features, functions and programming concepts as described fully in the Users Manual.

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Fluke 396, 397 manual Amplitude, Trigger Modes, Arbitrary Waveforms, Memory Segmentation, Remote Control
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396, 397 specifications

The Fluke 397 and Fluke 396 are two advanced handheld oscilloscopes, designed specifically for electrical testing, maintenance, and troubleshooting. Both models are tailored for professionals who require reliable and efficient tools for diagnosing electrical equipment issues.

One of the standout features of the Fluke 397 and 396 is their dual function as both an oscilloscope and a multimeter. This versatility allows users to perform a variety of measurements such as voltage, current, resistance, and frequency, all within a single compact device. Professionals appreciate this integration, as it eliminates the need for multiple tools, streamlining the testing process in the field.

The Fluke 397 and 396 offer a user-friendly interface with an intuitive touchscreen display that makes data review easy. The high-resolution screen provides clear visibility even in bright sunlight, ensuring that users can view waveforms and measurement results in any environment. The devices also feature an advanced triggering system, which allows users to capture and analyze intermittent signals, a common challenge when working with electrical equipment.

In terms of technology, Fluke has incorporated their exclusive Intelli-Results technology into the 397 and 396 models. This feature intelligently analyzes waveform data and provides users with actionable insights and suggestions, helping to simplify diagnostics and enabling technicians to quickly address issues. Furthermore, these oscilloscopes come equipped with a built-in memory feature that allows users to store captured waveforms and measurements for later analysis or reporting.

Another significant characteristic of the Fluke 397 and 396 is their robust build quality, designed to withstand the rigors of fieldwork. The devices are rated for CAT III and CAT IV operation, ensuring safety when used in high-voltage environments. They also feature IP54-rated protection, safeguarding against dust and moisture, which enhances their durability in challenging conditions.

Overall, the Fluke 397 and 396 oscilloscopes represent the pinnacle of modern electrical testing technology, combining functionality, durability, and ease of use. Their comprehensive measurement capabilities, advanced features, and rugged construction make them essential tools for electrical professionals seeking reliability and efficiency in their work.
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