Model 8402B, front panel.
c. DC Substitution Function.
(1) Range: Current variable over a range compatible with measurements
from 1 mW to 10 mW (precision differential or digital voltmeter required,
voltmeter input resistance greater than 10 megohms is required for negligible
(2) Uncertainty (0.06% + thermistor operating resistance uncertainty +
2X voltmeter uncertainty) 0 to 55C.
voltage across precision resistors.
d. Power Requirements.
The model 8402B is operated from an AC power
source of either 115V or 230V, 50 to 400 Hz.