2.2 Connecting the Measurement Lines
31
4
Connect the instrument to the measurement lines. (Example: 1P2W connection)
There are three types of connection methods:
When measuring measurement lines that are within the maximum input range,
connect the instrument to the measurement lines directly.
(For wiring modes other than 1P2W, see "Wiring diagrams for direct input (connections
to instrument’s terminal block)" (p.168) in "5.6 Wiring Specifications".)
Referring to "Selecting the connection method (Example: 1P2W connection)" (p.33), select the
connection method with the lower power meter loss.
Method 1: Connect the voltage input terminals to the load side.
(1) (2)
1
Voltage input
terminal
Current direct
input terminal
Current direct
input terminal
Voltage input
terminal
Method 2: Connect the current input terminals to the load side.
• When the instrument is affected by common-mode voltage, the error can be reduced by connect-
ing the ammeter as shown in (2) under Method 1 and (2) under Method 2.
• If leaving the connections in place after measurement is complete, be sure to conduct a pre-mea-
surement inspection (p.39) before making the next measurement. Such an inspection will enable
you to prevent electric shock and measurement errors caused by breaks in cables, short-circuits,
instrument failures, and other issues.
Voltage input
terminal
Current direct
input terminal
Voltage input
terminal
Current direct
input terminal
(1) (2)
To Next Page
Loading...
