General Description - Time Electronics 5069 Ins-Cal Technical Manual

2. G eneral Des c ription
This instrument provides all the equipment necessary to test and calibrate insulation
test sets and megohm meters.
It consists of a high precision resistance box, a volt meter and a milliamp meter.
It is constructed from very high insulation materials, including its case, and is fully
isolated from any external circuits including the mains supply.
The switches in the resistance circuit are constructed special high voltage low
leakage wafers and are self cleaning, so should require no maintenance.
All parts of the instrument, including the bared leads provided have been tested for
safety up to ten kilovolts.
The sections of the instrument may be used separately but the user must be aware
that they have a common earth which will prohibit two of the sections being used in
the same circuit.
Maximum voltage is dependent upon humidity levels. Below 50% relative humidity is
recommended.
5069 Technical Manual
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