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FNIRSI-1014D Two-in-One Digital Oscilloscope Instructions
Comprehensive user guide for the FNIRSI-1014D digital oscilloscope and signal generator, covering setup, operation, measurement techniques, and troubleshooting.
Table of contents
Product Overview
The FNIRSI-1014D is a versatile two-in-one device combining a dual-channel desktop oscilloscope with a built-in DDS signal generator. Designed for R&D and maintenance, it features a 1GSa/s real-time sampling rate and 100MHz analog bandwidth. The device includes a 7-inch 800x480 high-definition LCD screen, efficient one-button auto-adjustment, and a high-voltage protection module capable of handling up to 400V continuous voltage.
Key Features
The oscilloscope offers advanced trigger functions (single, normal, automatic) and supports various measurement parameters. It includes 1GB of internal storage for up to 1000 screen captures and 1000 waveform data sets. Users can easily manage, view, and export these files via the integrated USB interface. The built-in signal generator supports 14 standard function signals and customizable chopping output, allowing for complex signal simulation and analysis.
Safety and Operation
Important Safety Warning: When using both channels simultaneously, the ground clamps of the two probes must be connected together. Connecting them to different potentials will cause a short circuit and damage the motherboard. Always use the original power supply. Ensure the probe attenuation (1x, 10x, 100x) matches the oscilloscope settings to maintain bandwidth and prevent signal attenuation or damage.
Measurement and Maintenance
The device supports various measurement modes, including time and voltage cursors, FFT analysis, and Lissajous figures. Users can perform horizontal baseline calibration via the system menu if the indicator arrows do not align with the baseline. For high-frequency signals above 5MHz, always use the 10x probe setting to ensure impedance matching and accurate bandwidth performance. The device is capable of measuring diverse signals, from simple DC voltages to complex PWM signals, vehicle communication buses, and infrared remote signals.
Troubleshooting
If the device fails to start, check the power connection. If no waveform appears, ensure the device is not paused and the probe is properly connected. For zero voltage or frequency readings, use the auto-adjustment feature or manually set the trigger mode and vertical sensitivity. If the waveform is unstable, adjust the trigger voltage or enable the automatic 50% trigger function.
Manufacturer information
Shenzhen FNIRSI Technology Co., Ltd.
Practical help
Common problems
Device will not turn on
Check power cord connection and socket power. Try a different charging head.
No waveform on screen
Check if paused, ensure signal source is active, and verify probe integrity.
Voltage or frequency reads 0
Adjust vertical sensitivity/time base or press the [auto] button.
Waveform shakes and cannot be fixed
Adjust trigger voltage or enable 'automatic 50%' in the menu.
Baseline offset error
Disconnect probe and perform 'baseline calibration' in the menu.
Before use
- Ensure the power supply is the original unit provided.
- Verify probe attenuation switch matches the oscilloscope setting.
- Connect ground clamps together if using both channels.
- Check that the probe is not short-circuited.
- Ensure the device is not in pause mode.
- Calibrate baseline if indicators do not align.
Specs in practice
- Sampling Rate
- 1GSa/s, determines the resolution of the captured waveform.
- Input Voltage
- Up to 400V continuous, protected by high-voltage module.
Images and diagrams
- 1-7: Waveform data and baseline indicators for channels 1 and 2.
- 8-11: Horizontal time base and trigger status indicators.
- 12-17: Measurement parameter columns controlled by F1-F6 keys.
- 18-29: Channel control, coupling, probe settings, and trigger configuration indicators.
- 33-46: Navigation, menu, and file management buttons.
Model compatibility
- Use 100x probes for high-voltage/high-frequency equipment like induction cookers.
- Only use probes with 100MHz bandwidth or higher.
- USB interface is for file sharing with computers; do not rename files directly on the PC.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.