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1010 DC Voltage Calibrator

1010 DC Voltage Calibrator
  • 1010 DC Voltage Calibrator
  • 1010 DC Voltage Calibrator


  • 0.01μV to 10V in 5 ranges
  • 0.02% accuracy
  • Battery or mains operation
  • 30mA output current
  • 10ppm/hr stability
  • Battery level indicator
  • Safety terminals

1010 Images

  • A highly stable and accurate mains or battery powered 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. A carry case is available to house the instrument for transport or storage.

    Voltage outputs are set by selecting the range switch and dialling up the desired value on the thumbwheel switch. Output polarity may 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.

    The 1010 output connections are via safetey 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.

    Portable Operation
    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. The battery condition is monitored by a meter on the front panel.

    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 is a simple operation calibration instrument designed for accuracy and reliability. As part of the Time Electronics portable test equipment line it provides a high performance solution to voltage calibration applications. 

  • Technical Specifications


    0 to 9.9999V in 5 ranges:
    0 to 9.9999V in 100µV steps
    0 to 999.99mV in 10µV steps
    0 to 99.999mV in 1µV steps
    0 to 9.9999mV in 0.1µV steps
    0 to 999.99µV in 0.01µV steps 


    10V and 1V ranges: ± 0.02% of setting + ± 0.005% of range.
    100mV range: ± 0.05% of setting + ± 0.005% of range, ± 1µV.
    10mV and 1mV ranges: ± 0.05% of setting + ± 0.005% of range, ± 4µV.

    Output Resistance

    10V, 1V, and 100mV ranges = less than 0.1Ω (typically 0.05Ω). 10mV and 1mV ranges = 1Ω.

    Maximum Output Current

    10V, 1V and 100mV ranges = 25mA. 10mV and 1mV ranges = up to short circuit value 30mA, although it should be noted that loads of greater than 1kΩ will give greater than 0.1% error

    Output Voltage Stability

    Less than 30ppm per °C (0 to +50°C). Less than 5ppm per V variation in supply voltage. Less than 75ppm per year. Less than 10ppm per hour at constant temperature

    Output Polarity

    Positive or negative switch selected.  A centre ‘off’ position is also provided.

    Output Noise Level

    10V, 1V, and 100mV ranges = less than 10ppm of setting ± 2µV (0 to 10Hz).
    10mV and 1mV ranges = less than ± 0.05µV (0 to 10Hz) 

    Reference Sources

    Precision zener diode selected after a special ageing process for a temperature coefficient better than 5ppm per °C and stability better than 10ppm per month, non cumulative.

    Maximum Overload

    The instrument can withstand continuous short circuit on the output for all ranges.

    Power Supply

    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 display provides a continuous indication of the battery state.

    General Specifications


    W217 x H160 x D193mm



    Optional Extras

    Leather carry case. Calibration certificates traceable to NPL and UKAS

    Country of Origin UK
  • Models


    DC Voltage Calibrator



    Carry Case


    Factory (NPL Traceable) Calibration Certificate


    UKAS Calibration Certificate (ISO 17025)

  • PDF Downloads
    File Name File Size Language

    1010 Data Sheet



    1010 User Manual



    Carry Case Option Data Sheet 726kB EN
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    1010 DC Voltage Calibrator

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