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1024 DC Current Calibrator Data Sheet


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1024 DC Current Calibrator Data Sheet - 1

Time Electronics Description A precision DC current source for calibration and test applications from nanoamp levels to 100 mA. The 1024 is a solid state battery powered instrument which is easily portable and convenient 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 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. Stability and Temperature Coefficient 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 coefficients of less than 10 ppm per °C are used to maintain the accuracy and stability of the initial calibration. Safety Terminals The 1024 output connections are via safety terminals that are compatible with 4 mm shrouded plugs, standard plugs, bare wires, and spade terminals. These terminals are specifically designed with safety features including limited opening distance and a raised flange around the metal connection surface. This ensures that the clearances are sufficient to make the exposed metal parts touch-proof. Features • 0 to 100 mA in 5 ranges • Accuracy 0.02 % • 10 ppm/hr stability • 30 ppm/°C temperature coefficient • Up to 15 V output drive • Battery or mains operation • 12 hours typical use between charges • Battery level indicator • Optional carry case Portable Operation The 1024 can be powered from mains supply or by the internal rechargeable battery pack. When the calibrator is plugged into the mains supply the internal batteries will automatically start to recharge. If unplugged from the mains during operation the internal batteries will continue to power the instrument. Full charge allows 12 hours typical use. An LED indicator on the front panel displays the battery condition. Applications Applications include calibration and testing of current sensitive transducers; calibration and linearity tests on digital and electronic current meters; and semiconductor parameter measurements, for example diode conduction voltages at specified current levels. Time Electronics Ltd, Unit 5, T O N Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | | www.ti

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1024 DC Current Calibrator Data Sheet - 2

Time Electronics Due to continuous development Time Electronics reserves the right to change specifications without prior notice. Time Electronics Ltd, Unit 5, T O N Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | | www.timeelectron

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