6243/44 DC Voltage Current Source/Monitor Operation Manual
8.1.2 Safety Precautions
8-2
8.1.2 Safety Precautions
(1) Use an AC power supply with the specified voltage.
(2) Set the Line Frequency to 50 Hz or 60 Hz to match the line frequency.
(3) Calibrate the 6243/44 under the following conditions in a location free of dust, vibrations, line noise,
etc.
Temperature: 23C  3C
Relative humidity: 70% or lower
(4) Wait 2 hours or longer for warm-up to accurately calibrate the 6243/44.
Allow the measuring instruments to be used for the calibration to warm up for the period of time spec-
ified for the instruments.
The 6581 requires a warm-up time of 4 hours or longer.
(5) Upon completion of warm-up, note down the date of the calibration and the date for the next sched-
uled calibration on a card or sticker, etc. for convenience.