Frequency Counter or Timer 539 (30MHz ) Frequency counter model 539 is a high performance 8 digit LED Counter / Timer having high sensitivity, automatically placed decimal point, unit indicator, controlled crystal indicator etc. It has a 3 position attenuator and permits counting and timing measurements over a wide range.
| Freq. Range |
1Hz to 50MHz |
| Sensitivity |
40mV rms for Sine Wave, 100mV p-p for pulsed wave with min.pulse width of 100nS |
| Accuracy |
+1digit + time base error |
| Time period measurement |
400nSec to 10 Sec |
Time interval measurement
|
100nSec to 10 Sec |
| Display |
8 Digit |
|