Katalog Produk

Keterangan

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.