Rohde & Schwarz HM7042-5, User Manual

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20
Subject to change without notice
1 Important hints
(1) (2) (3)
1.1 Symbols
Symbol 1: Caution, general danger zone –
Refer to product documentation
Symbol 2: Risk of electric shock
Symbol 3: Ground
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 combined 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.
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!
picture 3
picture 2
picture 1
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
applicable 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 international 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 connected 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.
– The line voltage of the instrument must correspond to
the line voltage used.
– Opening of the instrument is allowed only to qualified
personnel
– 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
1.6 Proper operating conditions
The instruments are destined for use in dry clean rooms.
Operation in an environment with high dust content, high
humidity, danger of explosion or chemical vapors is prohi-
bited. 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
It is prohibited to disconnect the earthed protective con-
nection inside or outside the instrument!
Exceeding the Low Voltage Protection!
For the series connection of all output voltages, it is pos-
sible to exceed the low voltage protection of 42 V. Please
note that in this case any contact with live components
is life-threatening. It is assumed that only qualified and
trained personnel service the power supplies and the
connected loads.
I m p o r t a n t h i n t s I m p o r t a n t h i n t s