The
outstanding accuracy and stability of the 5018 programmable
calibrator is achieved by the use of patented circuit which
incorporates a dedicated micro-processor to continually monitor
the state of a bank of precision voltage references. The basic
digital to analogue converter has 22 bit (0.25ppm) resolution
and linearity and temperature coefficient are compensated in
software to better than 0.1ppm of full scale per degC. For the
DC 2V and 20V ranges noise is <1ppm (<1Hz) and short term
stability <0.5ppm/day and <2ppm/month.
Display
Eight bright 7 segment LEDs are used to display the output
value while a bank of dot matrix LEDs show units and other information.
GPIB & RS232
These interfaces allow the 5018 to be connected to a PC
and controlled by an external program such as Time Electronics’
EasyCal calibration software. |