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韓國EZ FC-7150 通用頻率計(jì)

1.Frequency measuring range : 0.1Hz to 150MHz in A input
2.Period / Total / RPM measurement for input A
3.9 digit display with 0.01mHz resolution in 1 sec.
4.High sensitivity external reference input function (higher than 20mVrms)
5.Microprocessor controlled
6.Reciprocal technique for high resolution at low counting frequency
7.Self check function executed to perform an automatic
self diagnosis of various counter function
8.Push-scanning for selecting function and gate time
9.Low-pass filter(100kHz, -3dB) installed for removing noise signal in low frequency measuring
10.AC/DC coupling function (selectable X1 / X10 attenuator)
11.Data hold function
12.Optional RS-232C serial interface function for communication with computer

FREQUENCY MEASUREMENT	- Display : 9 digit large green LED display(Overflow, gate time, mHz, Hz, kHz, MHz, ns, μs, s, hold) - Range : 0.1Hz ~ 100MHz - Gate time : 0.01s, 0.1s, 1s, 10s - Resolution : 1nH ~ 10Hz - Accuracy : ± resolution ± time base ± 1 count

INPUT CHARACTERISTICS	- Terminal : A - Sensitivity : 20mVrms A, B input / 30mVrms C input - Impedance : 1M? < 40pF A, B input / 50? C input - Max. voltage : 250Vrms A, B input / 3Vrms C input - Attenuator : X 1, X 10 A, B input - Slope A, B : + or selectable - Trigger A : preset or variable - Low pass filter : 100kHz(-3dB) A, B input

MULTI FUNCTION FOR INPUT A	- Period : 10ms ~ 10s range with 1ps ~ 1ns resolution / ± resolution ± trigger error ± 1 count accuracy - Totalize : 5Hz ~ 30MHz range / 0 ~ 999999999(Max) - RPM : 6 ~ 900 X 106 RPM

TIME BASE CHARACTERISTIC	- Internal time base : 10MHz TCO frequency, 3 X 10-7/ month, under 5 X 10-6 (0 + 50℃) temperature stability, under 1 X 10-7for 10% variation line voltage - Frequency output : 10MHz frequency / 2.5Vp-p amplitude / 500? impedance - External input : 10MHz frequency / 20mVrms ~ 5Vrms input level / 500? impedance

GENERAL	- Operating environments : 0℃ ~ 50℃ - Range for guaranteed : 25℃± 5℃ - Power requirement : AC 115 / 230V ± 10%, 50/60Hz - Dimension : 255mm(W) X 80mm(H) X 260mm(D) - Accessories : power cord, fuse, operation manual, BNC cable - Factory optional selection : RS-232C interface / TCXO