1045

Combined Voltage & Current Calpot

Time Electronics

Calibration, Test & Measurement

• 0 – 1V in 3 ranges

• 0 – 100mA in 3 ranges

• 0.02% Accuracy

• Portable

• Battery operation

The 1045 meets a requirement for a combined voltage and current DC Calibrator with the

additional facility for null balance measurement.

Comprising a combination of the well proven Time Electronics 1007 millivolt pot-source and

1021 current source with null. The voltage and current sections are operated independently.

The 1045 is powered from rechargeable batteries which give several months typical use

without recharging, the battery condition is monitored by indicators on the end of the unit.

High reliability and good long term stability is assured by using bandgap zener reference

diodes and the use of precision, low temperature coefficient components. The outputs are

short circuit proof and protected against overload.

The sensitive electronic null balance meters enable the unit to be used for potentiometric

voltage and current measurement in addition to its function as a calibrator. Null zero and

sensitivity are adjustable via front panel controls. Maximum sensitivity is 3µV for voltage

measurement and 1µA for current measurement.

Null Balance Display

A front panel meter is used for null balance measurements with zero and sensitivity controls

provided. Ranges -

Voltage

Maximum sensitivity: ± 20µV f.s.d. (2µV/div)

Minimum sensitivity: 200mV f.s.d.

LED scale: 7-0-7 (15 points)

Input resistance : greater than 1 Mohm at balance.

Current

Maximum sensitivity: ± 20µA f.s.d.

Minimum sensitivity: ± 20mA f.s.d.

Maximum Resolution: 1µA.

Time Electronics, Botany Industrial Est. Tonbridge, Kent. England. TN9 1RH.

Tel: +44 (0)1732 355993 Fax: +44 (0)1732 770312 E-mail: mail@timeelectronics.co.uk

www.timeelectronics.co.uk

V1a 01/01/07