Mini Handheld Digital Oscillo Bandwidth 200KHz FNIRSI-138 PRO PWM Square Wave Output 0-80kHz Oscillo With P6100 Probe-with P6100 Probe 2

Mini Handheld Digital Oscillo Bandwidth 200KHz FNIRSI-138 PRO PWM Square Wave Output 0-80kHz Oscillo with P6100 Probe

Explanation:

This FNIRSI 138pro portable oscillo is small in size, the size of this oscillo is only 65*60*18mm, compared with the traditional oscillo, it is more suitable for carrying around. If you're looking for a new oscillo, give this product a try, you won't be disappointed.

Features:

1. Wide application: This oscillo is suitable for car maintenance, DIY, home appliance maintenance, experimental teaching, etc.

2. Portable Oscillo: Compared to traditional oscillos, this oscillo is smaller and more suitable for carrying around.

3. PWM square wave output: The oscillo has a PWM square wave output function with a frequency range of 0-80kHz and a duty cycle of 0-100%.

4. One-key automatic adjustment: One-key automatic setting of all parameters and fast waveform measurement. Long pre the Auto on to quickly calibrate the baseline.

5. 3 trigger modes: single trigger mode for testing aperiodic signals, automatic trigger mode for testing periodic og signals, and normal trigger mode for testing digital logic signals.

Specification:

Duty cycle: 0-100%

PWM output: 3.3V

Frequency: 0-80kHz

Bandwidth: 200KHz

Sampling rate: 2.5MS/s

Coupling Mode: AC/DC

Voltage range:

X1: ±40V (Vpp: 80V)

X10: ±400V(Vpp:800V) (type3&4 only)

Trigger Mode: Single, Auto, Normal

Shping list:

Oscillo * 1

Probe * 1 (optional)

Pin header * 1

Test lead * 1

Q&A:

1：How can I tell if the battery is fully charged?

A: After the battery is fully charged,The charging light will change from red to green.

2:Why does the waveform jump up and down when testing the signal,Can't see the waveform, just see multle lines jumping up and down?

A: Set the trigger mode to “Auto” and then pre the [AUTO] on once.If the problem is not soed,the cl on the probe may not be grounded,or the probe cl end is open circuit. Please use a to check whether the probe is normal.

3: Why does the tested waveform shake from side to side,Can't be fixed?

A:Need to adjust the trigger voltage,the yellow arrow on the right.

Pre the up and down keys in trigger mode,The trigger voltage can be adjusted.It is neceary to adjust the yellow indicator arrow to be between the upper and lower waveforms,The waveform is triggered.

Also fixed.

4:Why is there no waveform when measuring a battery or other DC voltage?

A: The battery voltage signal is a stable DC signal,There is no curve waveform.In DC coupled mode,Then adjust the vertical sensitivity.There will be an upward or downward offset line waveform.If it is AC coupled，Then there is no waveform no matter how you adjust it.

5:Why when measuring the 220V waveform of the mains,The VPP peak-to-peak data below is more than 600 V instead of 220V or 310V?

A:Mains 220V is a symmetrical AC signal.Positive peak voltage (MAX) is +310V.Negative peak voltage (MIN) is -310V.So the peak-to-peak VPP below is 620V.The effective value (RMS) is often referred to as the 220V voltage.Mains voltage RMS fluctuates between 180~260V.So the peak-to-peak VPP is in the range of 507~733V.

6:Why is the measured mains 220V waveform not a very standard sine wave? Distortion occurs

A: The mains power grid is generally polluted,contains more high-order harmonic components.The superposition of these harmonics on the sine wave will give a distorted sine.Generally, the mains waveform is distorted and has nothing to do with the oscillo itself.

7:Why is the position of the baseline (0V) and the left arrow (OV indication) different on the screen when there is no signal input, and there is a relatively large offset?

A: Please pull out the probe,unplug the usb cable.Pre the [AUTO] on to enter the calibration confirmation interface,Click the [OK] on to enter the automatic calibration.

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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