I — I
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2 0 M Hz OSCILLOSCOPE HM 203-4
S p e c ific a tio n
Vertical Deflection (Y)
Bandwidth
of both channels
DC to 20MHz (-3dB), DC to 28MHz (-6dB).
Risetime: «17.5ns. Overshoot: max. 1%.
Deflection coefficients:
1 2 calibr. steps,
5mV/cm to 20V/cm in 1-2-5 sequence,
with variable control uncal. 1:2.5 to
2mV/cm
Accuracy in calibrated position: ±3% .
Input impedance:
1 MQ II 28 pF.
Input coupling: DC-AC-GND.
Input voltage: max. 500V (DC + peak AC).
Operating modes
Channel I, Channel II, Channel I and II
alternate or chopped (chop freq. « 1 MHz),
sum or difference Ch. II ± Ch. I
(with Invert button for Channel I).
Timebase
Time coefficients:
18 calibrated steps,
0.5//s/cm to 0.2s/cm in 1 -2-5 sequence,
with variable control uncal. 1:2.5 to 0.2,us/cm,
with 5x magnification uncal. to 40ns/cm.
Accuracy in calibrated position: ±3% .
Trigger System
Modes: Auto or Normal (with level adj.).
Slope: positive or negative.
Sources: Ch. I, Ch. II, line, external.
Coupling: DC-AC-HF-LF (TV frame).
Threshold:
internal 5mm, external 0.6V.
Bandwidth: DC up to 40MHz.
Horizontal Deflection (X)
Bandwidth:
DC to 2.5MHz (-3dB).
Input: via Channel II (see Y deflection spec.).
X-Y
phase shift: < 3 ° up to 300kHz.
Com ponent Tester
Test voltage:
max. 8.5Vrms (open circuit).
Test current:
max. 24mArms (shorted).
Test frequency:
50-60Hz (line frequency).
Test connection: 2 banana jacks 4mm dia.
One test lead is grounded (Safety Earth).
General Information
Cathode-ray tube:
D14-362 P43/93 (med.),
P7/93 optional (long decay characteristic),
rectangular screen, internal graticule
8x1 Ocm.
Accelerating potential: 2000V.
Trace rotation: adjustable on front panel.
Calibrator:
square-wave generator « 1 kHz
for probe compensation. Output 0.2V ±1 %.
Regulated DC power supplies:
all operating
voltages including the high voltage.
Protective system:
Safety Class I (IEC 348).
Line voltages: 110, 125, 220, 240V AC.
Permissible line fluctuation: ±10%.
Line frequency range: 50 to 60Hz.
Power consumption:
36 Watts (approx.).
Weight: 7kg (approx.). Color: techno-brown.
Cabinet (mm):
W
285,
H
145,
D
380.
Subject to change.
Y: DC-20MHz, max. 2mV/cm
X: 40ns/cm to 0.2s/cm
Triggering: DC to 4 0 MHz
| | Component Tester
The already well-known good
price/perform ance ratio
of the
HM 2 0 3 -4
was again improved. Both vertical amplifiers now
have
variable controls
and an input sensitivity of
max.
2 m V /c m
at full bandwidth. New is also that the sum and dif
ference of two signals can be displayed. The trigger facilities
were also extended. Besides Line- and TV-triggering,
HF-
and
DC-triggering
are now possible, as well. At 5mm display
height the HM203 will trigger up to
at least 4 0 M H z .
The
CRT's internal graticule permits
parallax-free viewing
from dif
ferent angles. Particularly for maintenance purposes, the
HM 203-4 also has a built-in
Component Tester
for quick
tests
of semiconductors
and other components, single or in-circuit.
The HM203 has been designed for
general purpose applica
tions in industry and service.
The multitude of operating
modes, concise layout of the front panels, and ease of opera
tion recommend it also for the
training of engineers and
technicians
Accessories optional
Attenuator probes IX , 10X, 100X; demodulating probe;
various test cables; 50Q BIMC feed-through termination;
BNC-banana adapter; 4-Channel Amplifier; viewing hood.
Printed in West Germany (1 983)
PI 2/83
