Hioki ST5540, Instruction Manual, Page: 81 / 326

5.1 Connecting the Test Lead
75
5
Chapt
er 5 Measu
reme
nt Prep
arations
L
When a measurement mode is selected, the measuring terminals (T1, T2, and T3) to be used for mea-
surement are indicated at the top of the screen.
Connect the test leads based on the indications displayed.
The list of the measuring terminals to be used
When selecting network A, D, E or F
When selecting network C, G
Measurement
Preparations
Chapter 5
5.1 Connecting the Test Lead
To avoid breaking the test leads, do not bend or pull them.
Class-I equipment Class-II equipment
Internally powered
equipment
Earth leakage current
– – –
Enclosure - Earth leakage current T2 T2 T2
Enclosure - Enclosure leakage current T1, T2 T1, T2 T1, T2
Enclosure - Line leakage current
(Selected line Internal)
T2 T2
–
Enclosure - Line leakage current
(Selected line External)
T1, T2 T1, T2
–
Free current
*
T1, T2 T1, T2 T1, T2
*
Only network A provides free current
Class-I equipment Class-II equipment
Internally powered
equipment
Earth leakage current
– – –
Touch current (Enclosure - Earth) T2 T2 T2
Touch current (Enclosure - Enclosure) T1, T2 T1, T2 T1, T2
Touch current (Enclosure - Line)
(Selected line Internal)
T2 T2
–
Touch current (Enclosure - Line)
(Selected line External)
T1, T2 T1, T2
–