5.2.3
Current Range Keys ................................................................................................. 15
5.2.4
Voltage Range Keys ................................................................................................. 15
5.2.5
Peak Amp Overload Indicator ................................................................................. 15
5.2.6
Peak Volt Overload Indicator .................................................................................. 16
5.2.7
Amps-Volts Display ................................................................................................. 16
5.2.8
Watts – True Power Display .................................................................................... 16
5.3
Rear Panel Controls ........................................................................................................ 17
5.4
Making Connections ....................................................................................................... 17
5.4.1
Using Option X-21 ................................................................................................... 18
5.4.2
Using CT’s and PT’s ................................................................................................. 18
5.4.2.1
Current Transformers .......................................................................................... 18
5.4.2.2
Potential Transformers ....................................................................................... 19
5.4.2.3
Using Both CT’s and PT’s ..................................................................................... 20
5.5
Manipulating the Data ................................................................................................... 21
5.5.1
VA, VAR, PF and
ϕ
................................................................................................... 21
5.5.2
PF, Leading or Lagging? ........................................................................................... 22
5.5.3
Accuracies ............................................................................................................... 22
Chapter 6
Routine Maintenance ............................................................................................. 23
6.1
General ........................................................................................................................... 23
6.2
Periodic Maintenance .................................................................................................... 23
6.2.1
Cleaning ................................................................................................................... 23
6.2.2
Tightening ............................................................................................................... 23
6.3
Calibration ...................................................................................................................... 24
6.3.1
Equipment Required ............................................................................................... 24
6
