GW Instek GFG-8210A - Manual (Page 7)

FUNCTION GENERATOR
USER MANUAL
11
4. FUNCTION DESCRIPTION
1. Power Switch Connect the AC power, then press power switch.
2. Gate Time
Indicator
Press the power switch, Gate time indicator will start
to flash (the gate time of internal counter is 0.01
second).
2a. Gate Time
Selector
Press this key to change gate time when use external
counter mode. The change order is according to 0.01s,
0.1s, 1s and 10s cycle by pressing these keys.
3. Over Indicator In the external counter mode, the indicator is
illuminated when the output frequency is greater than
the range selected.
4. Counter Display Shows the external frequency by 6×0.3" green display,
and shows the internal frequency by 5×0.3" green
display.
5. Frequency
Indicator
Indicate the current frequency value.
6. Gate Time
Indicator
Indicate the current Gate time (external. counter mode
use only).
7. Frequency Range
Selector
To select the required frequency range by pressing the
relevant push button on the panel as shown in
Table 1.
FUNCTION GENERATOR
USER MANUAL
12
Table 1
Push bottom 1 10 100 1k 10k 100k 1M 10M
Frequency
Range
0.1Hz
∣
1Hz 1Hz
∣
10Hz 10Hz
∣
100Hz 100Hz
∣
1kHz 1kHz
∣
10kHz 10kHz
∣
100kHz 100kHz
∣
1MHz 1M
∣
10M
8. Function Selector Press one of the three push buttons to select the desired
output waveform.
9. Duty Function Pull out and rotate the knob to adjust the duty cycle of
the waveform (Square wave only).
10. TTL/CMOS Selector When push in the knob, the BNC terminal of
will
output a TTL compatible waveform. If pull out and
rotate the knob can adjust the CMOS compatible output
(5-15Vpp) from the output of BNC .
11. DC Offset Control Pull out the knob to select any DC level of the
waveform between ± 10V, turn clockwise to set a
positive DC level waveform and invert for a negative
DC level waveform.
12. Output Amplitude
Control with
Attenuation
Operation
Turn clockwise for MAX. output and invert for a –20dB
output. Pull the knob out for an additional 20dB output
attenuation.
12a. 20dB Attenuation Press the knob to adjust a –20dB output.
13. MANU/SWEEP
Selector and
Frequency
Adjustment (Sweep
ON/OFF)
Press and turn clockwise the knob for MAX frequency
and invert for MIN frequency (Keep the pointer within
the scale range on the panel)
Pull out the knob to start the auto sweep operation; the
upper frequency limit is determined by the knob
position.