ZES ZIMMER LMG450, Руководство пользователя

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Z E S ZIMMER Electronic Systems GmbH Chapter 3
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3 Installation
3.1 Unpacking and putting into operation
Having unpacked the equipment, it should be checked for signs of damage. Damage due to
transportation should be reported to the equipment supplier at the earliest opportunity. If it is
uncertain to use the damaged equipment safely, then the equipment should not be used.
The package should be stored for further transports (e.g. for the annual calibration according
to ISO9000).
After delivery the following items should be present:
• 1 LMG450 4 channel measuring instrument
• 1 User manual
• 16 Safety laboratory leads, 2.5mm², 1m, 8 in violet, 8 in grey
• 1 Mains supply cable
Further accessories as listed in the delivery note.
The instrument should only be used in a clean and dry environment and must never be operated
in excessively dusty or moist spaces. To ascertain sufficient air circulation the instrument
should be operated in a horizontal position or tilted only to the degree possible by of the
adjustable handle. The instrument should not operate in direct sunlight.
3.2 General set-up
In general the instrument stores the actual settings as well as the last used menu. Pressing the
both lower softkeys when switching on the instrument will reset all settings to the default
parameters.
By this you can delete faulty scripts, which could block the instrument.
3.3 Connections of the LMG450
First of all please refer to chapter 1.1, ‘Safety Instructions’.
To ensure correct power measurement polarity, connect the cabling to the test circuit so that
the grey terminals (U and I) are used as a reference. In other words, the signal source should
point towards the terminals U* and I*.
When working with DC voltages/currents, note that the terminals marked with the ‘*’ are the
positive connections.