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TIME ELECTRONICS 1021 Milliamp Source with Null Indicator
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Features:
0 to 100mA output in 3 ranges
Accuracy 0.02%
25ppm/hr stability
Up to 40V output drive
Short circuit and overload protected
Safety terminals
Removable protective cover
Powered by 6 x AA batteries
10 hours typical use between charges
Optional carry case
The 1021 is a precision DC current source suitable for calibration and test applications from micro-amp levels up to 100mA. Three output ranges are available; 0 to 99.99mA in 10μA steps, 0 to 9.999mA in 1μA steps, and 0 to 999.9μA in 0.1μA steps. Output voltage is adjustable between 14 and 40 volts, with a maximum output power of 2.4 watts.
The functionality of the 1021 is based on the popular Time Electronics 1007 millivolt source, incorporating many of the well-proven features that enable fast and simple operation. Useful attributes include an LED voltage limit indicator, that shows the user 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.
The unique circuit design ensures that it stays well within specification for at least 12 months. Variation with temperature is better than 60ppm per °C, and typically better than 20ppm per hour at constant temperature. To improve the switch reliability, additional back-up contacts have been used, so even if a contact fails the 1021 will still operate correctly.
The accuracy and stability are such that a wide range of applications are possible. In the process industries it may be used to test and calibrate current sensitive transducers, and their associated indicating and recording instruments. The semiconductor industry requires constant current sources for parameter measurements. It may also be used to measure DC current accurately by using the null facility to back off the unknown current. Resolution of 1µA is possible.
Includes:
Time Electronics 1021 Milliamp Source with Null Indicator