Important Hints; Symbols; Unpacking; Positioning - Hameg HM7042-5 User Manual

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

1 Important hints

(1) (2) (3)
1.1

Symbols

Symbol 1: Attention, please consult manual
Symbol 2: Danger! High voltage!
Symbol 3: Ground connection
Symbol 4: Important note
Symbol 5: Stop! Possible instrument damage!
1.2

Unpacking

Please check for completeness of parts while unpacking. Also
check for any mechanical damage or loose parts. In case of
transport damage inform the supplier immediately and do not
operate the instrument.
1.3

Positioning

Two positions are possible: According to picture 1 the front feet
are used to lift the instrument so its front points slightly upward.
(Approx. 10 degrees)
If the feet are not used (picture 2) the instrument can be com-
bined with many other HAMEG instruments.
In case several instruments are stacked (picture 3) the feet rest
in the recesses of the instrument below so the instruments
can not be inadvertently moved. Please do not stack more than
three instruments. A higher stack will become unstable, also
heat dissipation may be impaired.
picture 1
picture 2
picture 3
18
Subject to change without notice
(4) (5)
1.4

Transport / Storage

Please keep the carton in case the instrument may require later
shipment for repair. Losses and damages during transport as
a result of improper packaging are excluded from warranty!
Dry indoors storage is required. After exposure to extreme
temperatures 2 h should held off on turning the instrument on.
1.5

Safety instructions

The instrument conforms to VDE 0411/1 safety standards appli-
cable to measuring instruments and left the factory in proper
condition according to this standard. Hence it conforms also
to the European standard EN 61010-1 resp. to the internatio-
nal standard IEC 61010-1. Please observe all warnings in this
manual in order to preserve safety and guarantee operation
without any danger to the operator. According to safety class 1
requirements all parts of the housing and the chassis are con-
nected to the safety ground terminal of the power connector.
For safety reasons the instrument must only be operated from
3 terminal power connectors or via isolation transformers. In
case of doubt the power connector should be checked according
to DIN VDE 0100/610.
Do not disconnect the safety ground either inside or
outside of the instrument!
– The line voltage of the instrument must correspond to the
line voltage used.
– Opening of the instrument is allowed only to qualified per-
sonnel
– Prior to opening the instrument must be disconnected from
the line and all other inputs/outputs.
In any of the following cases the instrument must be taken out
of service and locked away from unauthorized use:
– Visible damages
– Damage to the power cord
– Damage to the fuse holder
– Loose parts
– No operation
– After longterm storage in an inappropriate environment ,
e.g. open air or high humidity.
– Excessive transport stress
Exceeding 42 V
By series connecting all outputs the 42 V limit can
be exceeded which means that touching live parts
may incur danger of life! It is assumed that only
qualified and extensively instructed personnel are
allowed to operate this instrument and/or the loads
connected to it.
1.6

Proper operating conditions

The instruments are destined for use in dry clean rooms.
Operation in an environment with high dust content, high hu-
midity, danger of explosion or chemical vapors is prohibited.
Operating temperature is +5 °C ... +40 °C. Storage or transport
limits are –20 °C ... +70 °C. In case of condensation 2 hours are
to be allowed for drying prior to operation. For safety reasons
operation is only allowed from 3 terminal connectors with
a safety ground connection or via isolation transformers of