User Manual

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1077 Technical Manual Page | 3
1. Introduction
The 1077 is a portable, hand-held instrument designed for the testing and simulation of
current transducers. The three operating modes of the 1077 are:-
1. A precision adjustable current load, capable of taking 100mA from a 24V supply.
2. A DC 24 volt supply with a 0-20mA output current display.
3. A precision adjustable current source capable of driving up to 100mA through 250
ohms (or 20mA through 2, 000 ohms).
The unit is powered from internal rechargeable cells and is supplied in a carry case making
the 1077 ideal for field or s ite measurements.