digital frequency counter, oscilloscope, signal generator, function generator, frequency counter, bench top DMM, bench type DMM
digital frequency counter, oscilloscope, signal generator, function generator, frequency counter, bench top DMM, bench type DMM
Model VC2000 - Frequency Counter
This VC2000 is an intelligent multi-function instrument which measures Frequency, Pulse counting, Crystal. It has 4 step gate time, 5 range function select and 8 digits display.
All functions depend on single CPU, A crystal controlled temperature circuit provides constant compensation for the temperature drifting.
Technique specifications:
A. Measurement
1. Input terminal
There are 3 input terminals on this instrument:
CHA. High frequency 50 MHz - 2,4000 MHz
CHB. Low frequency 10Hz - 50 M Hz
Crystal Oscilloscope: for crystal measurement
Step | Function | Frequency | Resolution | |||
0.1 S | 1.0 S | 5.0 S | 10 S | |||
Frequency Measurement | 2400MHz - 1000MHz | 1 KHz | 100Hz | 100Hz | 100Hz | |
990MHz - 100MHz | 1 KHz | 100Hz | 10 Hz | 10Hz | ||
99 MHz - 50 MHz | 1 KHz | 100Hz | 10Hz | 10Hz | ||
50 Mhz-4 Mhz | 100Hz | 10 Hz | 1Hz | 1 Hz | ||
2 | 4 Mhz - 10 Hz | 10 Hz | 1 Hz | 0.1 Hz | 0.1Hz | |
3 | ||||||
4 | Counting | Max 99999999 | - | - | ||
Crystal Oscillator Measurement | 16M Hz -3.5 M Hz | 10 Hz | 1 Hz | 1 Hz | 1 Hz |
Gate Time: 0.1S,1.0S,5.0S, 10S
Accuracy: Time base deviation X frequency +- 1 d
Progressive Counting measurement
4 steps CHB input terminal
resolution: +- 1d, counting frequency: 10Hz - 4Mhz
Crystal measurement:
Input Features:
Input sensitivity for CHA 25mVrms/200m Vrms
Input impedance: approx. 50 Ohm
Max safety voltage 3 V
Input sensitivity for CHB: No.2 range 25m Vrms/80 m Vrms
No.3 range 10mVrms/30m Vrms
Input impedance: approx. 1 M ohm ( less than 35 pF)
Max Input safety voltage: 30V
Time base:
Short term stability: +- 3 X 10-9/second
Long term stability: +- 2 X 10-5/Month
Temperature: +- 2 X 10-5/10oC - 40o C
Power: 110 - 220V
Size: 270 X 215 X100 mm
Weight: Approx. 1550 g.