Time Electronics 1010 DC Voltage Calibrator - Manual (Page 3)

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1010 Technical Manual 3
1. Introduction
1.1. General Description
The 1010 is an accurate battery/mains powered voltage calibrator sourcing up to 10 volts in
5 ranges with a resolution up to 0.01uV.
A precision zener reference diode is used as a basic reference source and low temperature
coefficient resistors are used. Power is provided by a mains/rechargeable battery power
unit. A front panel indicator monitors the battery condition. The completely solid state circuit
design provides automatic standardisation against the internal reference and allows up to
30mA output current with less than 0.1 ohms output resistance. Short circuit overload
protection and a normal-off-reverse switch are provided.
1.2. Specifications
Ranges: 0-9.9999V in 5 ranges
0-9.9999V in 100uV steps
0-999.99mV in 10uV steps
0-99.999mV in 1uV steps
0-9.9999mV in 0.1uV steps
0-999.99uV in 0.01uV steps
Accuracy:
10V & 1V ranges: ± 0.02% of setting + ± 0.005% of range
100mV range: ± 0.05% of setting + ± 0.005% of range, ± 1uV
10mV & 1mV Ranges: ± 0.05% of setting + ± 0.005% of range, ± 4uV
Setting Resolution: 5 digits
Output Resistance: Less than 0.1 ohm (type 0.05 ohm) on 10V, 1V and 0.1V ranges.
1 ohm on lower ranges.
Maximum Output
25mA max. on 10V, 1V & 0.1V ranges (an internal short circuit current
Current: limit is set at approx 30mA). Lower ranges can be loaded up to the
short circuit current value although it should be noted that loads less
than 1000 ohms will give greater than 0.1% error.
Maximum Overload: The instrument can withstand a continuous short circuit on the output.
Output Voltage
Less than 30 ppm/°C to +50°C)
Stability: Less than 20 ppm/V variation in supply voltage.
Less than 75 ppm/year not cumulative.
Less than 10 ppm/hr at constant temperature.
Output Polarity:
Positive or negative switch selected. A centre ‘off’ position on this
switch provides a short circuit on the output for 1010 voltage source.
Output Noise Level: 10, 1 & 0.1V ranges, less than 10 ppm of setting +/- 2uV (0-10 Hz).
10mV & 1mV ranges, less than +/- 0.05uV (0-10 Hz)
Dimensions:
20 x 160 x 190 mm.
Weight:
Approximately 3.3kg.