Universal Frequency Counter

SS7200/7300/7400

SS7400 Universal Frequency Counter/Timer/Analyzer introduces high reliability and large scale integrated circuit.

Brief Introduction

Universal Frequency CounterSS7400 Universal Frequency Counter/Timer/Analyzer introduces high reliability and large scale integrated circuit. With multi-cycle synchronous, reciprocal count and TDC technology combined, the measurement accuracy is improved. It has the measurement function of frequency, period, time interval, pulse width, duty cycle, count, phase difference, also with the measurement computing function such as multiple average, maximum, minimum, standard deviation, Allan Variance, a single relative deviation. The instrument has advantages of stable performance, complete functional, wide measuring range, high sensitivity and precision, small size, nice outlook, easy to use and reliable.

Features

Minimum measuring resolution 11 digits/s

Time resolution 50ps

Maximum frequency’s measurement can reach to 16GHz (options)

Measures Frequency, Period, Duty Cycle, Frequency Ratio, Totalize, Phase Difference, Pulse Width, Time Interval and DCV.

Utility statistics functions of multi-average, maximum, minimum, PPM, standard deviation and Allan Variance for frequency measurement

Stores 15 group status

High-stability crystal oscillator is optional

SPECIFICATIONS

	SS7200A	SS7300	SS7400
Measuring Functions
Frequency Range	CH 1: 0.001Hz ~ 200MHz,
	CH 2: 0.001Hz ~ 200MHz
	CH 3: optional 3GHz/6.5GHz/12.4GHz/16GHz
Measurement Resolution	8 digits/s	10 digits/s	11 digits/s
Period	5ns ~ 1000s	5ns ~ 1000s	5ns ~ 1000s
Time Interval Range	10ns ~ 10000s	10ns ~ 10000s	1ns ~ 10000s
Resolution		500 ps	150ps
Pulse Width	30ns ~ 5000s	30ns ~ 5000s	1ns ~ 10000s
Duty Cycle	1% ~ 99%
Totalize	0 ~ 1×1013
Phase Difference	0° ~ 360°	0° ~ 360°	1° ~ 359°
DC Voltage	N/A	N/A	±19.99 VDC
Input
Dynamic Range	50mVrms ~ 1.0Vrms (Sine), 150mVPP ~ 4.5VPP(Pulse)
Input Impedance	1MΩ//35pF or 50Ω
Input Attenuation	×1 or ×10
Trigger Level	-5.000V ~ +5.000V, step 5mV
Other Functions
Frequency Ratio	√
Up/Low Limit	"Limit" light on shows the result out of range, off shows within range
Statistics Calculation	Multi-average, Max.,Min., PPM, SD, Allan Variance
Standard Time Base
Accuracy	5×10-8
Daily Aging	1×10-8/day
Optional Time Base
Accuracy	5×10-8
Daily Aging	5×10-10/day
General Characteristics
Interface	Standard USB	USB, RS-232	USB, RS-232
	Optional RS-232, GPIB	GPIB	GPIB
Power	AC 100 ~ 240V, 45 ~ 65Hz, undefined 35VA
Dimension & Weight	375×105×235mm, 4.2kg

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