Multi-function counter



spectrum analyzer audio

.High performance 150MHz clock, frequency resolution
8 digits/s, time interval resolution 20ns
.Apply high performance AVR CPU, LSI and CPLD device,
high reliability
.Channel C: 9GHz maximum
.Automatic limit testing for frequency measurement
.Math testing for frequency measurement
.Statistics (include mean, maximum, minimum, delta, rel,
PPM, stand deviance, Allan variance) for frequency
.Save and store 9 different measurement state setups
.RS232C and centronics printer interface

lcr meter tutorial
lcr meter block diagram


Function Measure frequency, time interval (average), period, frequency ratio,
totalize, PW (average),duty cycle (average), phase (average), self-calibrate and etc.
Measure frequency range 0.14mHz~50MHz(Channel A) / 0.14mHz~100MHz(Channel B)
Channel C 100MHz~500MHz(SP3389Ⅰ)
100MHz~2.5GHz(SP3389 Ⅲ)
100MHz~3GHz (SP3389 Ⅳ)
Input voltage 30mVrms ~ 1.5Vrms (100MHz below)
50mVrms ~ 1.5Vrms (100MHz ~ 1.5GHz)
30mVrms ~ 1Vrms (1.5GHz ~ 9GHz)
Input attenuation 20dB
Input impedance 1MΩ / 30pF or 50Ω
Period range 10ns ~ 10000s (channel A, B)
0.7ns~10ns (Sp3385Ⅰ)
0.3ns~10ns (Sp3385Ⅱ)
0.2ns~10ns (SP3385 Ⅲ)
0.1ns~10ns (Sp3385 Ⅳ)
Time interval range 40ns ~ 7000s (LSD: 20ns)
Phase range 0 ~ 360° (LSD: 0.1°)
Average phase measurement 1°~359°
PW range

25ns~200s (LSD: 20ns)

Average PW measurement 20ns~1000s
Duty cycle range 1~100%
Average Duty cycle measurement 1 ~ 99%
Totalizer capacity 0 ~ (1 × 1012-1)
Vp-p measurement 5mV~25V
Couple mode AC / DC (channel A)
AC (channel C)
Measure accuracy 8th digit/Gate time (s)
Frequency resolution 8th digit/Gate time (s)
Totalize capacity 0~1x1012
Time base 10MHz (optional 50/100MHz)
Time base stability ≤±1x10-8/d
Interface Rs232, IEEE488 (optional), USB (optional)
Power supply 90 ~ 250VAC, 50Hz~60Hz±2.5Hz, 30VA
Dimensions(WxHxD) 255x100x370mm
Weight 2kg


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