EZ Digital FC-3000 Operation Manual - Caution

Manual is about: Frequency/Universal

Summary of FC-3000

  • Page 1

    Warranty warranty service covers a period of one year from the date of original purchase. In case of technical failure within one year, our service center or sales outlet free of charge will provide repair service. We charge customers for repair after the one-year warranty period has been expired. P...

  • Page 2: Introduction

    3 introduction thank you for purchasing a ez product. Electronic measuring instruments produced by ez digital are high technology products made under strict quality control. We guarantee their exceptional precision and utmost reliability. For proper use of the product, please read this operation man...

  • Page 3: 1. Product Description

    4 content 1. Product description 1-1. Introduction ------------------------------------------------------ 5 1-2. Technical specifications -------------------------------------- 6 1-3. Equipment ratings --------------------------------------------- 9 1-4. Supplied accessories ------------------------...

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    5 1-1. Introduction this reciprocal universal(frequency) counter series are microprocessor controlled instrument for frequency measurement at high resolution within a short period of 7 digit display with one second gate time due to uniquely developed lsi as well as the expanding/reciprocal system. I...

  • Page 5

    6 1-2. Technical specifications input a characteristics - frequency range : 0.1hz to 100mhz (dc coupled) 30hz to 100mhz (ac coupled) - sensitivity : 0.1hz to 100mhz: 30mv - coupling : ac or dc selectable - impedance : 1 m Ω resistance, shunted by - attenuator : x 1 or x 10 switch selectable - low pa...

  • Page 6

    7 - max. Input voltage level fig 1. Max. Input level. (input a,b) input b. Characteristics - frequency range : 0.1hz to 100mhz (dc coupled) 30hz to 100mhz (ac coupled) - sensitivity : 0.1hz to 100mhz: 30mv - coupling : ac or dc selectable - impedance : 1 m Ω resistance, shunted by - attenuator : x 1...

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    8 input c. Characteristics - frequency range : 80 mhz to 1.5 ghz - sensitivity : 80 mhz to 1.1 ghz: 35 mv 1.1 ghz to 1.5 ghz: 70 mv - coupling : ac only - impedance : 50 Ω ± 5% - max. Input level : 3 vrms sine wave - frequency range : 80 mhz to 3.3 ghz - sensitivity : 80 mhz to 2.0 ghz: 10 mv 2.0 gh...

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    9 display characteristics - display : nine digit 0.56" led with m/n, k/u, hz, m, sec, g.T, hold, and “of” indicators. Function and gate time: user selected. “of” display shown when count exceeds 999 999 999 - hold : in frequency and period, total. Mode measurement in progress is stopped, and the las...

  • Page 9: Caution

    10 1-4. Supplied accessories operation manual ----------------------------------------------------------------------------- 1 bnc cable -------------------------------------------------------------------------------------- 1 power cord-----------------------------------------------------------------...

  • Page 10

    11 3. Operation 3-1. Controls, indicators and connectors 3-1-1. Fc-7150u, fc-7015u universal counter fig 2. Fc-7150u front panel gate indicator : the gate light, when lit, indicates the main gate is open and measurement in progress. Display : 9 digit(o.56") green led display used for all read readin...

  • Page 11

    12 input a, bnc : input for frequency measurements below 100mhz. Female bnc connector terminated in 1 m Ω input resistance, shunted by input c, bnc : input for frequency measurements above 80mhz female bnc connector terminated in 50 Ω. Input b, bnc : input for frequency measurements below 100mhz fem...

  • Page 12

    13 negative going edge of each signal is selected by the slope switches. G. Ratio (a/b). When this mode is selected, the unit measures the ratio of input a frequency to the input b frequency. Power switch : push in the unit on and push out the unit power off. 115v 230v 115v 230v sn : voltage power m...

  • Page 13

    14 3-1-2. Fc-3000, fc-7150, fc-7015 frequency counter fig 4. Fc-7150front panel dc ac couple 3 11 m/n m k/u 20 a off on power freq. 0.F tx rmt g.T rx 5 19 18 3ghz frequency counter hold a a a c total function priod rpm fc−3000 10s 1s s 1 . 0 0 0.1s total reset multiplier gate time 1 14 6 2 12 13 17 ...

  • Page 14

    15 gate indicator : the gate light, when lit, indicates the main gate is open and measurement in progress. Display : 9 digit(o.56") green led display used for all read readings. Note: last measurement display will remain for 10 seconds after signal off. Unit indicator : when lit, indicates that the ...

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    16 input a. Resolution is selected using the gate time. E. Total a. : when this mode is selected, the unit counts cycles of the input a signal and continuously displays that count. F. Rpm a. : when this mode is selected, the unit displays the rpm(rotation per minute) of the input a signal. Power swi...

  • Page 16: Caution

    17 voltage selector : select ac power, 115v ac or 230v ac. Ac inlet :for connecting of the supplied ac power int/ext time base selector : select the time base, switch position ext. Std.In provides a nominal 600 Ω input impedance path for an external 10 mhz time base. Switch position int. Std.Out mon...

  • Page 17: Caution

    18 3-3. Frequency measurements 3-3-1 input a, b (0.1 hz to 100 mhz) a. Apply the signal to be measured to the input a and/or b(fc-7150u, fc- 7015u only) bnc. B. Set the freq. A and/or b(fc-7150u, fc-7015u only) of function switch. C. Select the degree of resolution desired, using the gate time selec...

  • Page 18

    19 3-4. Period measurements a. Apply the signal to be measured to the input a bnc. B. Select the degree of resolution desired, using the gate time switch. C.Period is given by the display. The gate indicator lights while each measurement is in progress. D. Attenuator, low pass fitter, coupling switc...

  • Page 19: Note

    20 a. Connect the signal to be measured to the input a and input b. B. Set the t.L(a →b) of function switch. The switch label serves as a reminder that the measurement starts at the input a edge and stops at the input b edge. C. Select desired edge of each waveform using the input a, and input b slo...

  • Page 20: 4. Maintenance

    21 c. Select the resolution desired using the gate time switches. D. Frequency ratio is given by the display the gate indicator lights while each measurement is in progress, and the display is updated at the end of each measurement interval. E. Press the hold switch "freezes" the display at the exis...

  • Page 21: 5. Others

    22 5. Others 5-1. Bnc cable considerations accuracy of radio frequency measurements can be affected by connections between signal source and counter. Main considerations are standing waves and shunt cable capacitance. Standing wave is usually present due to reflections when a transmission line is no...

  • Page 22: Warning

    23 5-3. Line frequency measurements use of the attenuator, low pass filter, and/or x10 probe is advisable when measuring line frequency because the high amplitude signal and noise can cause wrong counting. Warning use caution in measuring the line frequency of an ac outlet. Using the probe tip only,...