VC2000
Frequency:10Hz - 2.4G Hz
Crystal :3.5MHz -- 16 MHz
Input selectable:
Channel A : 50MHz -- 24 MHz
Channel B: 10 Hz - 50 MHz
Sensitivity: 20mV/200mV rms
Input impedance: 50Ohms
Maximum input: 3V
Channel B: 10Hz 50 MHz
Sensitivity: 20mV/ 80mV rms
Input impedance: 1M Ohm(<35pF)
Power :110v -240V
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Specifications of Frequency Counter VC2000
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.