Section 2:Quick reference Model 2231A Triple-channel DC Power Supply Reference Manual
2-4 077100401/September 2014
Figure 6: Place the instrument standing on the handle
Figure 7: Adjust the handle in front of the front panel
Power the instrument on or off
Follow the procedure below to connect the Model 2231A-30-3 to line power and turn on the
instrument. The Model 2231A-30-3 operates on two ranges: 110 V and 230 V at a frequency of
50 Hz or 60 Hz. You need to select the line voltage and frequency on the rear panel. Make sure
the line voltage setting is compatible with the line voltage in your area.
The Model 2231A-30-3 must be turned on and allowed to warm up for at least one hour to
achieve rated accuracies.
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