Instruction manual

5.3 FREQUENCY COUNTER
1. Check the COUPLING switch position. The HF position is used for fre-
quencies more than 100kHz. And LF position is used for the frequen-
cies less than 100kHz.
2. The EXT COUNTER LED will be ON for when COUPLING switch is
selected for counting mode.
3. Connect the signal to EXT COUNTER BNC.
4. Display will show the frequency and Hz / kHz LED’s will light depending
on the frequency.
5.4 VOLTAGE CONTROLLED FREQUENCY OPERATION
The Model 4003A can be operated as a voltage controlled generator by
using an external control voltage applied to the VCF input.
1. Select the desired frequency range and waveform.
2. Set the starting frequency with the variable control. Apply a positive
DC voltage to the VCF input to decrease the frequency. A voltage
from 0 to +10V will cause the frequency to decrease by a factor of
100. For example, if the starting frequency is 100kHz, applying +10V
will change the output frequency to 1kHz.
5.5 FUNCTION GENERATOR APPLICATIONS GUIDEBOOK
B&K Precision offers a “Guidebook to Function Generators” which describes
numerous applications for this instrument, including hook-up details. It also
includes a glossary of function generator terminology and an explanation of
function generator circuit operation. It may be obtained free of charge from
the download section of the B&K Precision website www.bkprecision.com
Section 6
Maintenance
6.1 PREVENTIVE MAINTENANCE
Please follow the following preventive steps to ensure the proper operation
of your instrument.
! Never place heavy objects on the instrument.
! Never place a hot soldering iron on or near the instrument.
! Never insert wires, pins or other metal object into ventilation fan.
! Never move or pull the instrument with power cord or output lead. Espe-
cially never move instrument when power cord or output lead is con-
nected.
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