Table of Contents
Advertisement
GENERAL INFORMATION
Introduction
0
The PM 3342 is a dual -trace plug-in unit for the Y-
channel of the PM 3330.
The unit contains two identical amplifiers with an
electronic switch, by means of which two signals can be
compared in amplitude and in phase.
Technical data
Note: Properties, expressed in numerical values with
statement of tolerances are guaranteed by the
factory. Numerical values without tolerances are
intended for information purposes only and
indicate the properties of an average apparatus.
Input circuit
input
input impedance
input
maximum permissible
d.c. voltage in the a.c. position
Measuring probe
type
input
attenuation
permissible voltage
Amplifier
deflection coefficient
Moreover, the sum and the difference of two input
signals can be displayed.
Trigger of the time base occurs at choice on one of the
two input signals or on the combined signal.
The amplifier data apply to channel A as well as to
channel B.
adjustable AC or DC;
push-button for checking the zero level
1 MS2//15pF
BNC
400 V
PM 9331 A/10
10 MS2//8 pF
1 : 10, tol.: 3%
1,OOOVpeak
adjustable to 10 calibrated values: 10,20, 50 mV/cm etc.,
up to 10 V/cm; tolerance: 3%
continuous attenuator 1 : 3 (non-calibrated)
bandwith
D.C.: 0-50 Mc/s
A.C.: 1.6 c/s — 50 Mc/s
rise-time
7 ns
rise time of unit by itself: 5 ns
overshoot
< 2%
rejection factor
>_ 100
x
for frequencies < 1 Mc/s in position D.C. provided that the
amplifiers are adjusted to identical deflection-coefficients
maximum common mode input signal
corresponding to 10 cm trace height
magnification
3 times useful screen height, symmetrical round the centre of the screen
for frequencies up to 10 Mc/s.
The top of a signal, which is magnified at maximum, can be displayed
with the shift control.
Advertisement
Table of Contents
