3-1-2
Connecting Grounding Conductor for Lightning Surge Protection
To protect the UCAM-65A or scanners from lightning surge, do not forget to connect the grounding conductor for
lightning surge protection to “E” terminals of each of the input terminals and to the “GND” terminal.
For lightning surge protection, grounding should be independently made.
The effect of the lightning surge protection depends on whether grounding and wiring are sufficiently made.
Connect between the “GND” terminal and lightning surge protecting ground with as short as possible green color
vinyl coated wire with 1.25 mm
2
in diameter.
3-1-2-1 Connecting Grounding Conductor for Protecting Data Logger & Scanners from Lightning Surge
Connect all the “E” terminals in parallel.
(Vinyl coated wire with a diameter of more than
0.5 mm
2
)
Grounding terminal
雷
Independent grounding
for lightning surge protection
v “GND” terminal
3-1-2-2 Connecting Grounding Conductor for Protecting Sensors From Lightning Surge
(1) When KYOWA’s strain gage transducer is used
Connect KYOWA’s Cable Splicing Kit with Arrester JB-100C close to (about 1m) transducers and connect
a grounding conductor that is independently arranged for lightning surge protection.
(For details, refer to JB-100C instruction manual.)
Transducer Approx. 1m JB-100C
Extension cable
Grounding terminal Arrester
Independent grounding
for lightning surge protection
(2) When other sensors are used
Take appropriate measures for protecting sensors from lightning surge according to instruction manual of
sensors as well as manufacturer’s instructions.
- 3-4 -
