Time Electronics

1010 DC Voltage Calibrator

Time Electronics Ltd, Unit 5, TON Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom

T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectronics.co.uk | www.timeelectronics.com

Description

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 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

• 0.01 μV to 10 V in 5 ranges

• Accuracy 0.02 %

• 10 ppm/hr stability

• 30 mA output current

• Safety terminals

• Battery or mains operation

• 40 hours typical use between charges

• Battery level indicator

• Optional carry case

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. An LED indicator on the front panel displays the battery condition.

Applications

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.