Important Hints; Symbols; Placement Of The Instrument; Removing/Mounting The Handle - Hameg Instruments HM 400 Manuel

I m p o r t a n t h i n t s

1 Important hints

Immediately after unpacking check the instrument for any mechanical
damage and loose parts inside. In case of transport damage inform the
supplier. Do not operate the instrument.
1.1

Symbols

Consult the manual
Please observe this note
1.2

Placement of the instrument

The pictures show how to move the handle into various positions.
A: Carrying position
B: Position for horizontal carrying resp. for removing the handle
C: Horizontal operating position
D and E: Operating positions with different angles
F: Position for removing the handle
T: Position for transport in its shipping carton, the handle will not
lock in this position
In order to change the position of the handle, the scope
must first be firmly positioned e.g. on a table so that it
cannot drop. Pull both knobs of the handle and move it
to the desired position. If the knobs are released while
moving, the handle will automatically lock in the next
possible position.
1.3

Removing/mounting the handle

Removing is possible in positions B and F by pulling it out farther,
mounting by doing the reverse.
1.4

Safety

This instrument was manufactured and tested according to VDE 0411,
part 1, safety norms for electrical measuring, control and laboratory
instruments. The instrument left the factory in perfectly safe condi-
tion. It fulfills hence also the European norm EN 61010-1 resp. the
international norm IEC 1010-1. The user is requested to observe all
safety notes in this manual in order to preserve this safe condition and
guarantee safe operation. Housing, chassis and measuring signal inputs
are connected to the mains safety earth conductor. The instrument
fulfills the requirements of safety class I. All metal parts which can
be touched were tested with 2200 V
For safety reasons the oscilloscope may only be connected to outlets
with safety earth conductor. The mains plug must be inserted first
before any signals are connected to the instrument. It is prohibited to
disconnect the safety earth.
Most electron tubes generate gamma rays. With this instrument the
dose remains far below the limit of 36 pA/kg, set by the applicable laws.
Whenever it must be assumed that safe operation is endangered, the
instrument must be disconnected and stored in a safe place where
inadvertent use is precluded. This assumption is always valid
– if the instrument shows signs of damage
– if the instrument contains loose parts
– if the instrument does not function any more
28 Subject to change without notice
High voltage
Ground, earth
against the mains conductors.
DC
B
C
T
A
F
D
E
A
B
C
T
A
F
D
E
– if the instrument was stored for an extended period of time
under unfavourable ambient conditions (e.g. in the open or in
rooms at high humidity)
This instrument is solely destined for use by personnel
well familiar with
the dangers of electrical measurements!
1.5

Proper operation

A
Please note: This instrument is only destined for use by personnel well
instructed and familiar with the dangers of electrical measurements.
For safety reasons the oscilloscope may only be operated from mains
outlets with safety ground connector. It is prohibited to separate the
safety ground connection. The plug must be inserted prior to connec-
ting any signals.
1.6

Measurement categories

This oscilloscope is destined for measurements in circuits which are not
or not directly connected to the mains. Direct measurements (without
galvanic isolation) in circuits of the categories II, II or IV are prohibited!
The circuits of a measuring object are not directly connected to the
B
C
PUOPFGkT PUkT ANALOG PUOGkT PUkT
HGOPFFD DIGITAL PUkT PUOPFGkT HGOFFD PUOPFGkT
MIXED SIGNAL
COMBISCOPE
PUkT HM1508
PUkT PUOPFGkT PUOPFGkT PFGkT
1 GSa · 1MB
PUkT
150 MHz
PUOPFGkT PUOPFGkT PUOPFGkT
PUOPFGkT
PUkT PUOPF
PUOPF
PUkT PUOPF
HGOPFFD
PUkT PUkT
B VOLTS/DIVV VOLTS/DIVV VOLTS/DIVV
HGOPFFD
HGOPFFD HGOPFFD
PUOPFGkT PUkT
PUkT
HGOPFFD
PUOPFGkT PUkT
PUk PUk PUk PUk PUk PUk
PUkT PUkT PUkT PGkT PUOPFGkT
PUOPFGkT
PUkT
PUOPFGkT PUOPF PUOPFGkT PUOPF
INPUTS
PUkTKl
PUkTKl
15pF
max 15pF
400 Vp max
HAMEG
400 Vp
PUOPFGkT
C O M B I S C O P E PUkT
T
PUOPFGkT
PUOPFGkT PUOPFGkT PUOGkT PUOPFGkT PUOPFGkT PUOPFGkT
HM507
PUOPFGkT PUOPFGkT
PUOPFGkT PUOPFGkT PUOPFGkT PUOPFGkT
B
PUOPFGkT PUOPFGkT PUOPFGkT
PUk PUk PUk PUk PUk PUk
PUkT
HGOPFFD
PUOPFGkT
PUOPFGkT
PUkT PUOPFGkT
PUkT HGOFFD PUkT PUOPFGkT
PUkT PUkT PUkT
T
INPUT CHI PUkT INPUT CHI HAMEG INPUT CHI
OPK OPK OPK
HJ PUkT HJ HJ
VBN VBN VBN
HJKL PUOPFGkT HJKL PUOPFGkT HJKL
C
D
E
D
E