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92B/96B/99B/105B Users Manual

Adjusting the Trigger Level

To adjust the test tool’s trigger level, do the following:

1.Select INPUT A or INPUT B as trigger source. (The trigger levels of the other sources are fixed.)

2.Press to open the ADJUST LEVEL box. Use

and to adjust the trigger level. Observe the trigger icon (e.g. a ) as you adjust the trigger level.

3.Press to accept the selected trigger level.

Automatic Trigger Level

To give you a stable display, the ScopeMeter test tool can find the best trigger level automatically. To activate this

feature, press to open the ADJUST LEVEL box; then

press a second time to select AUTO LEVEL. Press to accept the selection.

The trigger level will now be set and continuously adjusted to the optimal level, even when the signal changes.

Choosing a Trigger Delay

You can also begin to display the waveform at some time before or after the trigger point is detected. This is identified by the delay icon "T" on the top of the display.

From the second page of the MORE TRIGGER window, select RESET DELAY to reset all the selected trigger delays to their initial values (TIME DELAY : -2, TRIGGER SPECIAL DELAY: OFF).

Types of trigger delays are discussed below. In many instances, you can select more than one type of delay.

Press to enter the Time Delay list box. Use or

to set the trigger time delay in increments of the existing time base divisions. The range of divisions is -20 to +640. For example, if the time base is set to 2ms/DIV, +16 defines a delay of 16 time divisions (32 milliseconds) after

the trigger is detected. Press to accept the new delay.

From the second page of the MORE TRIGGER window, select TRIGGER SPECIAL DELAY (off, Events, or N-Cycle).

N-CYCLEThe trigger waveform is divided by the number of cycles "N" to create a stable picture for waveforms with a cyclic character. (N-CYCLE can be used

only on INPUT A.) Use or to select the number of cycles. A total of +2 to +255 cycles can be selected.

EVENTS Triggering via the external input is delayed for a number of events that occur on INPUT A. Use

or to select the number of events (+1 to +1023). External trigger starts the delay, and after the number of events on INPUT A is equal to the selected number, the test tool acquires the INPUT A signal.

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Fluke 105B, 99B manual Adjusting the Trigger Level, Automatic Trigger Level, Choosing a Trigger Delay
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99B, 105B specifications

The Fluke 105B and Fluke 99B are highly regarded oscilloscopes that offer a blend of performance, portability, and user-friendly features, making them ideal tools for both professionals and enthusiasts in the electronics field. These oscilloscopes exemplify Fluke's commitment to quality and precision in electrical testing and diagnostics.

One of the standout features of the Fluke 105B and 99B is their exceptional bandwidth and sampling rates. The 105B typically boasts a bandwidth of up to 100 MHz, while the 99B offers similar specifications. This ensures that both models can accurately capture fast signal changes and perform detailed analysis of electrical waveforms, making them suitable for a wide range of applications in the industry.

Both oscilloscopes are equipped with advanced display technology, offering clear and bright visual output. The intuitive user interface allows for easy navigation and configuration, enabling users to quickly set up their measurements without a steep learning curve. High-resolution displays provide detailed waveform representation, enhancing the ability to analyze complex signals.

In terms of connectivity, the Fluke 105B and 99B include multiple input channels, often allowing for simultaneous measurement of multiple signals. This is particularly useful in troubleshooting applications where the relationship between signals needs to be understood. The oscilloscopes also support various triggering modes, which provide users the flexibility to isolate specific signal events for more focused analysis.

The portability of the Fluke 105B and 99B cannot be overlooked. With their lightweight design and battery operation capabilities, these oscilloscopes are well-suited for fieldwork, enabling technicians to conduct live measurements without being tethered to a power source. This makes troubleshooting and validation of electrical systems much more convenient, especially in remote locations or on-site environments.

Powerful storage features allow users to capture, save, and export waveform data for further analysis or reporting. The availability of software for data analysis and documentation enhances the functionality of both models, making it easier to maintain a record of measurements and findings.

In summary, the Fluke 105B and 99B oscilloscopes are powerful, portable, and equipped with advanced features that cater to various testing and diagnostic scenarios. Their robust design, high-performance specifications, and user-friendly interfaces make them a valuable addition to any electronics professional's toolkit, ensuring reliable performance in the field.
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