1045 TIME-ELECTRONICS | Alldatasheet
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Technical content
1045 Combined Voltage & Current Calpot
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 measur ement in addition to its function as a calibrator. Null zero and sensitivity are adjustable via fr ont 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 meas urements 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
1045 Technical Specifications
Output: 0 – 1000mV in 3 ranges 0 – 999.9mV in 0.1mV steps 0 – 99.99mV in 10µV steps 0 – 9.999mV in 1µV steps Accuracy: ± 0.02% of setting + ± 0.02% of range + ± 1uV Output Resistance: <0.1 Ohm on 1V & 100mV ranges. 1 Ohm on 10mV range. Output Current: Up to 20mA on 1V & 100mV ranges 10mV range up to short circuit. Loads in excess of 1kOhm will give greater than 0.1% error. Output Stability: < 60ppm/°C. < 100ppm/3 months Non cumulative. Output Noise: <30ppm of full scale. CURRENT OUTPUT Output: 0 – 100mA in 3 ranges 0 – 99.99mA in 10µA steps 0 – 9.999mA in 1µA steps 0 – 999.9µA in 0.1µA steps Accuracy: ± 0.02% of setting ± 0.02% of range ± 0.02uA Voltage Capability: Adjustable between 14V and 40V. Voltage Limit: A front panel LED warns of insufficient drive voltage. Output Stability: <60ppm/°C (-10°C to +50°C) <25ppm/hr (at constant temp.) Output Noise: <15ppm of Full Scale Load Regulation: <20ppm/volt change in output. Reference Source: Precision zener diode selected for stability and low T/C. Output Polarity: Positive or Negative switch se lected. Centre position is off. Power Supply: 6 – AA NiCad Cells. Standard 220V – 240V A.C. charger supplied, 110V-120V A.C. version should be specified on ordering. Operation Temp: -10°C to +60°C General Specification Dimensions: 200 x 107 x 160mm Weight: 2.5 kg Optional Extras: Calibration Certificates – traceable to N.P.L. and UKAS
Ordering Information
1045 Calpot (Combined Voltage & Current Calibrator – Potentiometer)
9157 N.P.L. Traceable Calibration Certificate
9111 UKAS Calibration Certificate
Due to continuous development Time Electronics reserves the right to change specifications without prior notice. 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 01/01/07V1a 01/01/07