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  • High Sensitivity 1Hz-50MHz Frequency Meter
High Sensitivity 1Hz-50MHz Frequency Meter

High Sensitivity 1Hz-50MHz Frequency Meter

Counter Measurement Tester Module 7V-9V 50mA DIY Kit

4.3
(20 Customer Reviews)
| Brand:other (0)

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Anguilla
: china

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Features:
Frequency range: 1Hz-50MHz(in fact, it can work up to 78MHz).
Four or five digits resolution(display for example, x.xxx KHz, x.xxx MHz, or xx.xx MHz).
Automatic range switching with different gate times.
Programmable addition or subtraction of the frequency offset.
Input impedance: 1.1M, in parallel with about 10pF.
Input sensitivity: tipcally less than 20mV RMS from 1Hz-100KHz, rising to 35mV at 20MHz and 75mV at 50MHz(150mV at 78MHz).
Current consumption: 50mA with 7 to 9V input.
Optional(configurable) power-saving mode which automatically turns the display off if the frequency didn't change significantly within 15s.

Specifications:
Type: Assembled Tester / DIY Kit(Optional)
Frequency Range: 1Hz-50MHz
Input Impedance: 1.1M, in parallel with about 10pF
Resolution: Max. 1Hz
Current Consumption: 50mA with 7 to 9V Input
Input Socket: BNC
Display: LED Digital Display
PCB Size: 79 * 62mm / 3.1 * 2.44in
Product Weight: 60g / 2.11oz
Package Weight: 61-65g / 2.16-2.28oz

Package List:
1 * Frequency Meter

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
Customer Reviews

Average Rating:

4.3

based on 20 Customer Reviews

  • 5 stars
    5%
  • 4 stars
    95%
  • 3 stars
  • 2 stars
  • 1 stars

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  • By t***3

    June 1, 2018

    good service

    Is this helpful? (0) (0)

  • By j***s

    May 28, 2018

    good transaction

    Is this helpful? (0) (0)

  • By m***7

    April 28, 2018

    Excellent.

    Is this helpful? (0) (0)

  • By d***k

    April 27, 2018

    Good Transaction

    Is this helpful? (0) (0)

  • By f***c

    April 14, 2018

    Good seller, five stars, thank you

    Is this helpful? (0) (0)

  • By l***o

    March 1, 2018

    Great seller. Item as described. Fast delivery

    Is this helpful? (0) (0)

  • By m***u

    February 27, 2018

    Good product!

    Is this helpful? (0) (0)

  • By m***d

    February 21, 2018

    Nice transaction

    Is this helpful? (0) (0)

  • By k***c

    February 19, 2018

    Arrived as described and in excellent packaging.

    Is this helpful? (0) (0)

  • By m***v

    February 17, 2018

    Good shopping. Thank You and recommend to all.

    Is this helpful? (0) (0)

  • By a***e

    February 5, 2018

    good deal

    Is this helpful? (0) (0)

  • By v***s

    December 29, 2017

    excellent seller quality kit at agreat price

    Is this helpful? (0) (0)

  • By t***e

    December 21, 2017

    Good quality, and prompt transaction! Thanks!

    Is this helpful? (0) (0)

  • By d***1

    December 19, 2017

    Smooth transaction. +++++++++++++++++

    Is this helpful? (0) (0)

  • By i***n

    December 9, 2017

    Item received in good condition.

    Is this helpful? (0) (0)

  • By f***1

    October 22, 2017

    Exactly as described. Tested and working.

    Is this helpful? (0) (0)

  • By w***y

    October 18, 2017

    No manual or instructions but all forwarded by email on request. Well made item

    Is this helpful? (0) (0)

  • By d***x

    August 14, 2017

    Very Nice Great Price Fast Ship A+++ Seller

    Is this helpful? (0) (0)

  • By o***r

    July 2, 2017

    VERY FAST Shipping Thank You. It works GREAT. HIGHLY RECOMMEND

    Is this helpful? (0) (0)

  • By s***5

    June 4, 2017

    Works well

    Is this helpful? (0) (0)

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