High Sensitivity 1Hz-50MHz Frequency Meter Counter Measurement Tester Module 7V-9V – Assembled Tester
Price:
$ 9.96
Specifications
ColorStyle | A |
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Gross Weight | 0.074kg |
Volume Weight | 0.043kg |
Length | 11.000cm |
Width | 7.000cm |
Height | 2.500cm |
Weight | 0.066kg |
With Retail Packaging | No |
Product Description
High Sensitivity 1Hz-50MHz Frequency Meter Counter Measurement Tester Module 7V-9V – Assembled Tester
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Frequency range: 1Hz-50MHz(in fact, it can work up to 78MHz)
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Four or five digits resolution (display for example, x.xxx KHz, x.xxx MHz, or xx.xx MHz)
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Automatic range switching with different gate times
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Programmable addition or subtraction of the frequency offset
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Input impedance: 1.1M, in parallel with about 10pF
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Input sensitivity: tipcally less than 20mV RMS from 1Hz-100KHz, rising to 35mV at 20MHz and 75mV at 50MHz (150mV at 78MHz)
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Current consumption: 50mA with 7 to 9V input
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Optional (configurable) power-saving mode which automatically turns the display off if the frequency didn't change significantly within 15s
Specifications:
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Type: Assembled Tester / DIY Kit
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Frequency Range: 1Hz-50MHz
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Input Impedance: 1.1M, in parallel with about 10pF
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Resolution: Max. 1Hz
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Current Consumption: 50mA with 7 to 9V Input
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Input Socket: BNC
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Display: LED Digital Display
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PCB Size: 79 * 62mm / 3.1 * 2.44in
Bill Of Materials
Resistors(0.25W, 1%)
8 R1-R8 1k
2 R9, R15 10k
1 R10 100k
1 R11 1M
1 R12 220
1 R13 56k * According to the different batches of C3355, the resistance may change
1 R14 470
Capacitors:
1 C1 470n Polypropylene
1 C2 100p Ceramic
2 C3 C5 100n Polypropylene
1 C4 47u Electrolytic
2 C6, C8 10u Electrolytic
1 C7 6-40p Variable
2 C14, C15 22p Ceramic
Integrated Circuits
1 U1 PIC16F628A (Programmed) + 18pin IC socket
1 U2 LM1117-5V SMD
Transistors:
1 Q1 C945
1 Q2 J310
1 Q3 C3355
Diodes:
6 D1-D6 1N4148
1 D7 1N5819
Miscellaneous:
1 J1 16Pin SIL Socket & header
1 J2 BNC Socket
1 J3 DC_CZ_ZM DC adapter socket
1 SW1 AN_SW Push button switch
1 SW2 SW2X2 Push button switch
1 X1 Crystal 20MHz
2 SG1-SG2 Red 2digit common cathode 7-segment display
1 SG3 Red 1digit common cathode 7-segment display
1 Main PCB
1 Display PCB
2 Copper Pillar +Screw +Spring Washer
Assembly Diagram:
https://www.dropbox.com/s/0yjnpjtfp7htck2/Aassembly%20diagram%20for%20E1822.pdf?dl=0
Bill of Materials:
https://www.dropbox.com/s/o5g7abvwuk7fswp/Bill%20of%20materials%20for%20E1822.pdf?dl=0
User Manual:
https://www.dropbox.com/s/nrpzdw4nzp5n5cx/The%20main%20features%20of%20E1822.pdf?dl=0
Package included:
- 1 x Frequency Meter









