Multifunction Electrical Tester Calibrator
Turning on the Calibrator
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Table 7. Rear-Panel Features (cont.)
Item Description
G Chassis Ground Binding Post A binding post that is internally grounded to the chassis. If
the Calibrator is the ground reference point in a system,
this binding post can be used for connecting other
instruments to earth ground. (The chassis is normally
connected to earth ground through the three conductor line
cord instead of through the earth ground binding post.)
H IEEE-488 Port A standard interface connector for operating the Calibrator
in remote control as a Talker or Listener on the IEEE-488
Bus. Refer to Chapter 5 of the Users Manual for bus
connection and remote programming instructions.
I RS-232 Port A female (DCE) serial port connector for transmitting
internal calibration constant data to a printer, monitor, or
host computer, and for remote control of the Calibrator.
Chapter 5 of the Users Manual describes proper cabling,
how to set up the serial interface, and how to transmit data
from the Calibrator.
J LAN Port An RJ45 LAN connector for remote control of the
Calibrator. Chapter 5 of the Users Manual describes
proper cabling, how to set up the LAN interface, and how
to transmit data from the Calibrator.
Turning on the Calibrator
With the Calibrator setup for the proper line voltage, press the power switch on the back
panel so the “I” side of the switch is depressed. During its power-up cycle, the
Calibrator displays a power supply test screen while initializing internal circuits and
checking the mains connection. The mains connection tests are:
• Power line voltage test – The line voltage must be within preset limits. For the 230 V
setting, the range must be between 180 V and 260 V. For the 115 V setting, the limits
are between 90 V to 130 V.
• Power line frequency test – The frequency must be within preset limits: 49 Hz to 51
Hz or 59 Hz to 61 Hz.
• Potential difference and polarity test – The potential difference between neutral and
protective earth must be less than 15 V.
Note
The polarity of the neutral and the line wires must be correct for the
5320A to power on. If the “L-N-PE” test fails during the power-on
process, the neutral and line wires should be swapped on the plug end of
the 5320A power line cord. Only a qualified service technician should
make this change.