A highly stable and accurate mains or battery powered DC V calibrator suitable for applications requiring a precision voltage source of low internal resistance. It has five ranges up to 10 V with a resolution up to 0.01 μV. The compact and robust design make it easily portable and well suited to laboratory, field and industrial use.
Voltage outputs are set by selecting the range switch and dialling up the desired value on the thumbwheel switch. Output polarity can be selected using the normal/off/reverse switch. The calibrator output resistance is typically 500 mΩ on the 10 V, 1 V and 0.1 V ranges. The maximum output current that can be drawn on these ranges is limited to 25 mA maintaining specification. The lower ranges have an output resistance of 1 Ω and will supply current up to 30 mA.
A precision zener diode is used as a reference source that provides an input to a F.E.T. chopper amplifier system operating in a feedback stabilised mode. The gain value is determined by a set of precision metal film resistors, selected by the 5-decade thumbwheel switch on the front panel.
The output voltage is variable from 0.01 μV to 9.9999 V in 5 ranges. For complete reliability, the calibrator range switch employs two contacts in parallel for each position in case one contact fails, ensuring the calibrator will still function correctly.
0.01 μV to 10 V in 5 ranges
Accuracy 0.02 %
10 ppm/hr stability
30 mA output current
Battery or mains operation
40 hours typical use between charges
Battery level indicator
Optional carry case
The 1010 output is via safety terminals that are compatible with standard plugs, 4 mm shrouded plugs, bare wires, and spade connectors.
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.
The 1010 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 40 hours typical use. An LED indicator on the front panel displays the battery condition. A carry case is available to house the instrument for transport or storage.
The 1010 can be used for calibration, linearity, and gains stability measurements on DC amplifiers, digital and electronic voltmeters, data loggers and chart recorders. It’s high 10 ppm per hour stability and very low noise levels are ideal for these types of applications.
The 1010 has the advantage of requiring no standardisation and being able to supply much higher output currents without loss of accuracy. Long term stability is inherent since standardisation is not required. The instrument is designed for simple operation and reliability.
0 to 9.9999 V in 5 ranges:
0 to 9.9999 V in 100 µV steps
0 to 999.99 mV in 10 µV steps
0 to 99.999 mV in 1 µV steps
0 to 9.9999 mV in 0.1 µV steps
0 to 999.99 µV in 0.01 µV steps
10 V and 1 V ranges: ± 0.02 % of setting + ± 0.005 % of range
100 mV range: ± 0.05 % of setting + ± 0.005 % of range, ± 1 µV
10 mV and 1mV ranges: ± 0.05 % of setting + ± 0.005 % of range, ± 4 µV
10 V, 1 V, and 100 mV ranges = less than 0.1 Ω (typically 0.05 Ω). 10 mV and 1 mV ranges = 1 Ω
Maximum Output Current
10 V, 1 V and 100 mV ranges = 25 mA 10 mV and 1 mV ranges = up to short circuit value 30 mA, although it should be noted that loads of greater than 1 kΩ will give greater than 0.1 % error
Output Voltage Stability
Less than 30 ppm/°C (0 to +50 °C). Less than 5 ppm/V variation in supply voltage. Less than 75 ppm/year. Less than 10 ppm/hour at constant temperature
Positive or negative switch selected. A centre ‘off’ position is also provided
Output Noise Level
10 V, 1 V, and 100 mV ranges = less than 10 ppm of setting ± 2 µV (0 to 10 Hz)
10 mV and 1 mV ranges = less than ± 0.05 µV (0 to 10 Hz)
Precision zener diode selected after a special ageing process for a temperature coefficient better than 5 ppm/°C and stability better than 10 ppm/month, non-cumulative
The instrument can withstand continuous short circuit on the output for all ranges
Time Electronics power unit type PU2 which is housed in the rear of the 1010. The PU2 will power the 1010 direct from the mains or an internal rechargeable battery. The battery is automatically charged when mains power is connected. Access to the power supply is from the back of instrument.
Battery Level Indicator
A front panel LED provides a indication of the battery condition.
W 217 x H 160 x D 193 mm
Leather carry case. Calibration certificates: Traceable (Factory) or accredited (ISO 17025)
Country of Origin
Packed Dimensions: L 42 x W 42 x H 42 cm / Packed Weight: 5 kg