The
1024 is a precision DC Current Source suitable
for calibration and test applications from nanoamp levels up
to 100 mA.
The 1024
is a solid state battery powered, portable test instrument ideal
for laboratory, field, or industrial use. It incorporates many
of the well-proven circuit techniques of the Time Electronics
Type 1010 DC Voltage Calibrator.
The null
balance system enables the 1024 to be used for making accurate
current measurement in addition to its basic function as a calibrator.
Operation is performed by backing the current source output
against the current to be measured, with the difference being
displayed on a sensitive centre zone null meter. At the null
point, there is no voltage drop across the 1024.
The 1024
employs a precision aged reference diode as a basic reference
source. Excellent zero stability is ensured by the use of a
high performance FET chopper amplifier system.
Precision
metal film resistors with temperature co-efficients of less
than 10 ppm per ºC are used to maintain the accuracy and
stability of the initial calibration.
Applications
include calibration and testing of current sensitive transducers;
calibration and linearity tests on digital and electronic current
meters; and semiconductor parameter measurements e.g. diode
conduction voltages at specified current levels.
This precision
DC current calibrator is one of the Time Electronics portable
testing equipment line, with multiple capabilities it delivers
accuracy and reliability in one instrument. |