Precision Digital PD650 User Manual
Page 23

Model PD650 Large Display Process Meter
Instruction Manual
23
Power Connections
!
Refer to Changing from 115 to 230 VAC Power, page 20, to make sure meter 
is set up to accept proper voltage before applying power. 
!
Disconnect power to the meter before making any connections.
!
Do not connect Power or Earth Ground to any unused or CM terminals.
Connecting 230 VAC with 115 VAC selected will result in damage to the 
instrument as well as endanger personnel. Connecting AC power when meter is 
set up for DC power will result in damage to the instrument as well as endanger 
personnel. 
Connect power to terminals L2(V-) and L1(V+). Connect Earth Ground to screw 
terminal marked with Ground symbol on the enclosure’s base (see Figure 3). 
Figure 5.
Input Power Connections
Notice: 
• 
Primary voltages must not be accessible to the user.
•
Primary wires must be installed in accordance to the applicable standards.
•
Keep the primary wires separated from signal cables.
