Datasheet

5.17.3 Gate Time

Press 〖Gate Time〗softkey then select ‘Gate Time’ to configure the desired gate time.

The gate time indicates the sampling interval time of tested signal, the longer the gate

time is, the more the sampling data, so the users may get more stable measurement

result and higher measurement resolution. And the shorter the gate time is, the better the

tested signal is tracked, but short gate time will result in low measurement resolution.

Generally, gate time should be longer than the period of tested signal.

5.17.4 Trigger Level

Press 〖Trig level〗softkey then select ‘Trig levl’ to configure the desired trigger level

value. Set the trigger level to be 0 if using AC coupling and adjust the trigger level if using

DC coupling. The influence for trigger level adjustment is small if the amplitude of tested

signal is higher. But if the amplitude of measured signal is lower or frequency is higher,

you need adjust the trigger level carefully to get a better result.

5.17.5 Sensitivity

Press 〖Sensitiv〗softkey then select ‘Sensitive’ to configure the desired sensitivity value.

The bigger the value is, the higher the sensitivity is. The influence for sensitivity

adjustment is small if the amplitude of tested signal is higher. But if the amplitude of

measured signal is lower and noise contained in signal, you need adjust the sensitivity to

get a better result.

Generally speaking, improve sensitivity if test value of frequency is less than standard

frequency of measured signal, or lower sensitivity if test value of frequency is greater

than standard frequency of measured signal.

5.17.6 Coupling Mode

Press 〖Coupled〗softkey to choose between AC or DC. If frequency of measured signal

is higher with DC offset, select AC mode and set the trigger level to be 0. If frequency of

measured signal is lower than 1Hz or amplitude lower than 100mVpp, select DC mode

and adjust trigger level properly to get a better result.

5.17.7 Low-pass Filter

Press 〖Filter On/Off〗softkey to turn on or off the low-pass filter. When frequency of

measured signal is lower with high-frequency noise, frequency testing value will be

greater than standard frequency value of test signal, low-pass filter should be turned on

to filter the high-frequency noise, then get an accurate result. But when frequency of

measured signal is higher with lower amplitude, the low-pass filter will attenuate the