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1.3 Specifications
Specifications apply after 60 minutes of warm-up at ambient temperature of 25 ±5°C, a line
frequency of 50 to 60Hz, at nominal line voltage ±5%, includes loading and maintains for a period of 6
months. All specifications are described as maximum limits unless otherwise stated.
1.3.1 Models 800A/811A
Voltage Output Characteristics
Voltage Range: 11-749V RMS
2 ranges: 11-120, 121-749
Voltage Accuracy: ±(0.02% of reading +0.001% of range).
Distortion (Harmonic): 0.05% RMS for resistive loads.
0.05% reading +0.01% range RMS for inductive loads.
Rectifier loads may cause additional distortion.
Line related and other noise: 0.01% reading +0.002% range RMS.
Cycle to Cycle Instability: ±0.01% reading +0.002% range peak to peak.
Resolution: 1 Volt.
Voltage Burden: 11-120V: 300mA, 120 to 100V decreasing to 50mA at 11V.
121-279V: 145mA, 279 to 220V decreasing to 75mA at 121V.
280-750V: 45mA 749 to 700V decreasing to 15mA at 280V.
Instability: 20ppm per hour reading non cumulative.
50ppm per day reading non cumulative.
100ppm per month reading non cumulative.
Temp. Coefficient: ±(10ppm reading +2ppm range) per °C.
Line Voltage Sensitivity: ±5ppm/percent line voltage change.
Connections: Four wire.
Current Output Characteristics
Current Range: 0.011-50 Amperes.
3 Ranges: 0.011-1.0999A; 1.1-10.999A; and 11.000-50A
Current Accuracy: 0.011-10.999 Amps: ±(.025% reading at Unity PF + 100µA)
11.000-50 Amps, 50/60Hz: ±(0.035% reading + 0.001% range)
11.000-50 Amps, 400Hz: ±0.1% reading
50-75 Amps, 50/60Hz: ±0.06% reading
50-75 Amps, 400Hz: ±0.2% reading
Distortion (Harmonic): 0.05% at 1PF setting, increasing linearly to
0.15% at 0PF setting RMS.
Line related and other noise: 0.01% reading +0.001% range RMS.
Cycle to Cycle Instability: 0.05% reading +0.004% range, peak to peak.
Resolution: 0.001% of scale.
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