1Hz~50MHz Crystal Meter Measurement LED 5-Digits

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Description:

• 1Hz-50MHz Crystal Oscillator Frequency Tester Meter Digital LED
• Frequency 1Hz ~50 MHz
• Five-digit resolution (eg display X. xxxx kHz X. xxxx MHz or xx. MHz)
• Measure signal amplitude up to 30 V
• 4-40 Meters can measure passive crystals
• Automatic range switching with different gate times
• Optional addition or subtraction of a frequency offset ()
• Low component count: a PIC 16F628, 5-segment LED displays, a 20 MHz crystal and a few resistors
• Optional (configurable) power saving mode that automatically does not change the when the frequency substantially within 15 seconds
• USB 5V or -12V power supply can be used

Specification:

Welding installation considerations, these steps:

• The components are welded on the back of the board (including good resistance capacitance screen printing side), from low to high, the first principle, namely low welding components, such as crystal, , resistor, .
• The welding header, and then welding, triode, knob, a power outlet.
• The back with a side cutter to short the pins as far as possible

 Debugging steps:

• After completion of welding IC PIC16F628 , note the direction of IC, the insert can damage the chip!
• Check the against, such anti take timely correction.
• After the check, the electricity, the fourth digital tube display 0. said the installation was successful!

Using the step of:

• Before measuring signal, please switch J1 cap. blue terminals for the IN for signal input, GND GND for signal input signal amplitude does not exceed 30 V, otherwise the frequency meter damage.
• Before measuring crystal please switch the J1 JP1 insert 4 m to 40 m crystals can measure the crystal frequency

Note: This is DIY Kits

Package Includes:

• 1 Piece Frequency Meter DIY

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