FREQUENCY COUNTER
USER MANUAL
5
4. PANEL INTRODUCTION
(1). Counter Input BNC type connector.
(2). ATT, 1/1, 1/10 Attenuation button of input sensitivity.
1/1 : Directly connect input signal to input amplifiers.
1/10: Attenuate input signal by a factor of 10.
(3). LPF ON/OFF Set to ON position, insert a 100kHz Low Pass Filter into
input for low frequency measurement.
(4). FREQ/PRID Frequency or period measurement by setting the button.
(5). Gate Time Selector Press the gate time button to 10 sec, 1 sec or 0.1 sec for
measurement.
(6). Power ON/OFF Power on or off by using the button.
(7). Gate Time(LED) The gate time of 10 sec, 1 sec or 0.1 sec will be
displayed in the LED by setting the Gate button.
(8). Over (LED) Overflow indicator shows that one or more of the most
significant digits are not displayed.
(9). Displayed (LED) Display 8 digits of frequency data.
(10) Exponent and units
(LED)
LED indicator shows S and Hz of the unit and indicate
the value of the measurement exponent as shown below:
k=1000 M=1,000,000 G=1,000,000,000
m=1/1000 μ=1/1,000,000 n=1/1,000,000,000
FREQUENCY COUNTER
USER MANUAL
6
z Front Panel
Fig. 1 Front panel
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