The 2724A Resistance Standard is a fully variable programmable resistance standard that provides over 10 million resistance values ranging from 100 micro-ohms to 11 gigohms. The unit accomplishes this feat by using microprocessor technology coupled with an extremely high resolution A/D converter to "synthesize" the programmed value of resistance. Basic Accuracy to 7 ppm Short Term Stability to 2 ppm (10 ppm-1 yr) Calibrates 7 1/2 digit DMMs Two/Four Terminal
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Output Configuration
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Selectable 2-wire or 4-wire low thermal EMF
terminals; front and rear provided in parallel
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Leakage Current
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±2pA ±0.2pA/°C
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Maximum Noise and Thermals
(4-wire mode) |
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DC to 10Hz
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10Hz to 10kHz
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Standard Mode
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±4µV
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±40µV
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Fast Mode
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±30µV
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±300µV
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CPR Mode
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±2µV
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±20µV
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Dimensions
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89mm (3.5")H x 432mm (17")W x 432mm (17")D
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Weight
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7.2 kg (16 lb) net, 10.5kg (23 lb)
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Power Requirements
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115 or 230VAC ±10% @ 50 to 400Hz; 50VA max
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Temperature
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Operating: 0°C to 50°C
Storage: -30°C to 70°C
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Humidity
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Up to 70% RH at 40°C (non-condensing)
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