Time Electronics 1017 DC Multifunction V_I_R Calibrator - Manual (Page 3)

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1017 Technical Manual 3
1. Introduction
1.1. General Description
The 1017 is a high performance portable calibrator for use in the field or laboratory.
With voltage ranges from 10nV to 100V, current from 100nA to 100mA and resistance from
10m
Ω to 10kΩ, it makes the 1017 an extremely versatile instrument, capable of calibration
or simulation.
The digital deviation control allows the output to either increase or decrease directly in a
percentage from 0.001% to 0.999%. This is a useful feature for checking the accuracy of
difficult scales.
Long term stability is guaranteed by the use of high quality components and the latest in
resistor technology.
The 1017’s basic reference source is a specially aged, computer selected, precision
reference diode. The diode provides the input to the instruments active circuitry which
incorporates several high performance chopper stabilised amplifiers with a zero stability of
less than 0.5uV per°C and a warm up time of less than 1 minute.
The precision resistors used in the 1017 are high performance types with temperature ratio
matching of less than 2ppm per °C.
The output terminals are low thermal E.M.F. types, typical E.M.F. of less than 0.2uV per °C.
The 1017 can be powered from either the mains or the internal rechargeable battery pack.
The batteries are automatically recharged when the mains supply is connected. A front
panel battery level indicator displays the batteries state of charge.
Output polarity can be reversed via a switch on the front panel.