Sanwa PDR4000, Instruction Manual, Page: 5 / 20

− 3 −
Measurement categories (Overvoltage categories)
CAT. II: Primary circuit of equipment with a power cord to be
connected to a mains socket.
CAT.III: Primary circuit of equipment that inputs power directly
from the distributor and the circuit from the distributor
to the mains socket.
CAT.IV: Circuit from the leading wire to the distributor.
[3] NAMES OF COMPONENT UNITS
3-1 MAIN Unit
EARTH TESTER
PDR4000
POWER
REL HOLD
TEST
ACV 40Ω 400Ω 4000Ω
>
2s
AUTO POWER OFF TEST OUT PUT
CAT.III 300V
CAT.II 400V
ACV 400V
MAX
E
S
(
P
)
H
(
C
)
Black Blue Red
Input terminals
LED indicator ACV function
HOLD Back Light
TEST
REL
Power
Ω function