The 1021 is a precision DC current calibrator suitable for sourcing applications from micro-amp levels up to 100 mA. Three output ranges are available; 0 to 99.99 mA in 10 μA steps, 0 to 9.999 mA in 1 μA steps, and 0 to 999.9 μA in 0.1 μA steps. Output voltage is adjustable between 14 and 40 volts, with a maximum output power of 2.4 watts.
High accuracy and long term stability make the 1021 suitable for a wide range of testing workload. In process applications it can be used to calibrate and verify current sensitive transducers and their associated indicating and recording devices. For the semiconductor industry the unit can be used as a constant current source for parameter measurements. It can also be used to measure DC current accurately by using the null facility to back off the unknown current. Resolution of 1 μA is possible.
Operation of the 1021 is fast and simple operation. The user needs to only to switch on, check the battery condition, select the range, and set the required current using the thumbwheel switches. Useful features include an LED voltage limit indicator, that shows when the 1021 is unable to supply sufficient drive voltage to maintain the set output current. The instrument is also short circuit and overload protected.
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