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Set the Data-Hold Switch (3, Fig. 1) at the pushed-out position. Now, "GATE" "0" "Hz" is lit up at frequency LED
display.
6.1.3. Features
LPF-A Switch (Low Pass Filter (6, Fig. 1))
This switch is used for noise removal in measurement of frequency lower than 300 kHz with high frequency noise in
Channel A.
Channel Select Switch (5, Fig. 1)
The Channel A will cover your measurement of the frequency from 1 Hz up to 20 MHz with auto range. The Channel
B will cover your measurement of the frequency from 20 MHz up to 2,7 GHz.
Gate Time Switch (4)
For a better resolution in your measurement, your selection for a proper gate time is advisable. The following table
will help you refer to the optional frequency resolution. In case the input signal is lower than 1 kHz, we recommend
you select gate time 1 s or 10 s. If you select 0,1 s, the counted data has to be multiplied by 10times for an actual
measuring value. But their errors maybe 10% or more.
Frequency Resolution Table
Gate Time
CH A
CH B
Data-Hold Switch (3, Fig. 1)
Upon activation of this mode, a read-out on the LED display will be captured and remained even after disconnecting
the test connector from a measuring point.
Reset Switch (2, Fig. 1)
If you want to clear the displayed data, press RESET button.
OFL Indicator LED
When the counted data is over 8
6.1.4. Mesuring the output frequency generated by F/G
If you want to measure the output frequency being measured by the function generator, set the display option key
(21, Fig. 1) at F/G position.
Because the maximum output frequency of F/G is 10 MHz, the range select channel should be set at CH-A which can
read the frequency ranging from 1 Hz to 20 MHz.
Under activation of this mode, the universal counter will not measure any input frequency injected from the frequency
input connector.
6.2. Operating the Function Generator (F/G)
Check the line voltage and fuse ratings before connecting to the power outlet. Be sure to turn on F/G power switch
located on the rear panel. For stabilizing the system, warm-up time of 30 minutes is required before commencing
operation.
6.2.1. Specification
Wave Forms
Frequency
VCF Voltage Level
Output Impedance
Output Amplitude
Attenuator
Frequency Variable Range
Symmetry Variable range
Offset Variable Range
0,1 s
1 S
10 Hz
1 Hz
1 kHz
100 Hz
th
digit, the OFL LED flickers.
Sine, Square, Triangle, Skewed Sine, Ramp, Pulse, TTL Level Square
1 Hz to 10 MHz in 7 ranges
0 to 10 V DC (Max. input voltage: ± 15 V)
50 Ω ± 10 %, 600 Ω ± 10 % selectable
2 V
to 20 V
at open load
pp
pp
at 50 Ω load
1 V
to 10 V
pp
pp
-20 dB
20 : 1 or more
3 : 1 or more
Max. ± 10 V DC
-24-
10 S
0,1 Hz
10 Hz
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