B&K Precision 4011A - Manual - Manual (Page 14)

14
OPERATING INSTRUCTIONS
2. If in doubt about the safety of a signal injection
point, measure the voltage present at the intended
point of signal injection before connecting the
function generator output to that point.
3. When applying the main output of the function
generator to a circuit point containing a dc level,
adjust the DC OFFSET control so that the dc level
at the main output matches the circuit voltage.
4. Connect the TTL output only to TTL-level circuits.
Connect the CMOS output only to CMOS circuits.
Measure the Vcc of the circuit under test and adjust
the CMOS LEVEL control as instructed in the
manual.
5. When the function generator is used by students or
other inexperienced users, the circuit of Fig. 5
could be added into your TTL output probe or test
clip set. It will protect the TTL output of the
generator against external voltages up to ±20 volts.
Figure 5. Circuit for Protection of TTL Output.
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 downloaded off our website at
www.bkprecision.com .