Tektronix TEKFAX ADA400A, Инструкция по эксплуатации

Страница: 14 / 80

Getting Started
2
ADA400A Differential Preamplifier
Recommended accessories for the ADA400A Differential Preamplifier include
the following items:
H
P6101B 1X Passive Probe
H
1103 Probe Power Supply for oscilloscopes that do not have the TEK-
PROBE Interface.
Installation
Before you connect the output of the ADA400A Differential Preamplifier,
determine whether or not your oscilloscope has the TEKPROBE interface. The
interface provides connections for power, signal, and scale factor coding for
compatible probes and accessories.
The polarized output connector of ADA400A Differential Preamplifier connects
to any oscilloscope with the TEKPROBE interface.
NOTE
. To avoid misleading scale factor readouts of the ADA400A Differential
Preamplifier, the oscilloscope must be compatible with the scale factor coding;
otherwise, you must remove the preamplifier housing and disconnect the internal
line that carries the scale factor coding.
Compatible Oscilloscopes.
Most oscilloscopes with the TEKPROBE interface,
except the 11000 Series models, are compatible with the scale factor coding of
the ADA400A Differential Preamplifier. The factory configures the internal
jumper to connect the scale factor coding. See Figure 1.
Perform the Functional Check on page 4, steps 1--6, and verify that the
oscilloscope volt/division readings match the manual for all gain settings in step
6. If the readings are not correct for any scale setting, the oscilloscope is not
compatible with the scale factor coding of the ADA400A Differential Preamplifi-
er. In this case, use the procedure that follows to disable the scale factor coding.
1.
Remove the top housing of the preamplifier by following the procedures on
page 54.
2.
Identify the jumper on the data line (See Figure 1) and position the jumper to
disable the scale factor coding.
3.
Replace the top housing on the preamplifier box.
Oscilloscopes
with
the
TEKPROBE Interface