Hameg HM 203-7 Manual page 3

OSCILLOSCOPE HM 203-7
Specification
(
21
°C; ismin.)
Vertical Deflection
Operating modes; Channel I orCh. II separate,
Channel I and II: alternate or chopped;
(Chopper frequency approx. 0.4 MHz).
Sum or difference of Ch. I and Ch. II.
(channel II invertible).
X-Y Mode: via Channel I and Channel II.
Frequency range: 2x DC to 20MH2 (-3dB).
Risetime: approx. 17.5ns. Overshoot: ^1 %.
Deflection coefficients: 10 calibrated steps
from 5mV/div. to 5V/div in 1-2-5 sequence.
Accuracy in calibrated position: ±3%.
Variable 2.5:1 to max, 12.5V/div.
Y-magnification x5 (calibrated) to 1 mV/div. ±5%
(frequency range DC to 3.5MHz, —3dB)
Input impedance: 1 MQ II 25pF.
Input coupling: DC-AC-GD (Ground)
Input voltage: max. 400V (DC + peak AC).
Y-output from Ch. I or Ch. II (optional)
Trigger System
With automatic; 10Hz-40MHz. >0.5div.
normal with level control from DC-40MHz.
Slope: positive or negative.
ALT. triggering; LED indication for trigger action.
Sources: Ch. I, Ch. II, line, external.
Coupling: AC (S10Hz -10 MHz), DC (0 -10 MHz),
LF (0 - <50kHz), HF (>1,5kHz • 40MHz).
Threshold external >0.3V.
Active TV-Sync-Separator for line and frame.
Horizontal Deflection
Time coefficients: 18 calibrated steps
from 0.2|is/div. to 0.1 s/div. in 1-2-5 sequence,
accuracy in calibrated position: ±3%.
variable 2.5:1 to max. 0.25s/div.,
with X-Magnifier x10 (± 5%) to == 20ns/div..
Hold-Off time: variable to approx. 10:1.
Bandwidth X-Amplifier: DC-3 MHz (-3dB).
Input X-Amplifier via Channel II,
sensitivity see Ch. II specification.
X-Y phase shift: <3° below 220kHz.
Z input (optional)
Component Tester
Test voltage: approx. 8.5Vm,5 (open circuit).
Test current: approx. 8mA,(shorted).
Test frequency: ^ line frequency.
Test connection: 2 banana jacks 4mm 0.
One test lead is grounded (Safety Earth).
General Information
Cathode-ray tube: D14-364 P43/123, or ER151 -GH/-,
rectangular screen, intern, graticule. 8x10cm
Acceleration voltage: 2000V,
Trace rotation: adjustable on front panel.
Calibrator: square-wave generator == 1 kHz for
probe compensation. Output: 0.2Vand2V +1 %.
Line voltage: 110, 125, 220, 240 V~ ±10%.
Line frequency: 50Hz to 400Hz.
Power consumption: = 37 Watt (at 50 Hz).
Max. ambient temperature: -(-10°C...-T40°C.
Protective system: Safety Class I (lEC 348).
Weight: approx. 7.5kg. Colour: techno-brown.
Cabinet: W 285, H 145, D 380mm.
Lockable tilt handle.
20 MHz Standard Oscilloscope
2 Channels, max. 1 mV/div. sensitivity; Component Tester
Timebase: 0,1s/div. to 20ns/div.; Variable Holdoff; Alternate Triggering;
Triggering: DC-40MHz; TV Sync Separator; Trigger LED
The HM 203-7 is Western Europe's best selling oscilloscope because it
responds thoroughly to customer demands for reliability, superior perfor¬
mance, and ease of operation.
The outstanding transient response of the HM 203-7, particularly when
displaying square wave signals, is one of the pre-eminent features of this quality
instrument, the integrity of the signals reproduced by this oscilloscope reflect a
dedication to engineering excellence normally only found in expensive labora¬
tory instruments. As an aid to ensure the correct polarities when displaying the
sum, difference, or video signals, an "invert" control is provided on channel II.
Technically advanced triggering circuits enable the user to attain clear, stable
displays from DC to over 40 MHz, with input levels as low as 0.5 divisions. The
Holdoff control enables even complex asynchronous waveforms to be solidly
displayed. Trigger action is indicated by an LED, which illuminates whenever the
trigger threshold point is crossed. And for the display of video signals, the
HM 203-7 has a low distortion active TV sync separator, which allows for auto¬
matic synchronizing with line and frame frequencies. "Alternate triggering"
mode enables the display of two asynchronous signals simulteneously.
The CRT's 8x10 cm internal graticule enhances parallax-free viewing over a
wide field. In addition, the CRT is fully shielded with mumetal to prevent display
distortion in the presence of magnetic fields.
As a practical, built-in feature, the component tester enables the operator
to quickly identify faulty semiconductors and a large variety of individual compo¬
nents, both in circuit and out.
The HM203-7 was specifically designed for use in production lines, general
service applications, and for technical training facilities. The multiplicity of display
modes, the easy-to-understand front panel, and the operational simplicity of the
HM203-7 make it also an ideal training scope for educational purposes.
Accessories supplied
Two 10:1 probes. Line cord. Operators Manual.
Subject to change without notice.