5-1
<Wiring>
IM 01W06F02-01EN
5. Wiring
5.1 Precautions in Wiring
CAUTION
Ensure continuity (Resistance less than 0.2 MΩ) between the sheath
(Element) of the thermocouple to be connected and the grounding pole.
Grounding resistance 100 Ω or less is recommended.
IMPORTANT
• Be sure to waterproof the threaded area. (For waterproofing, we
recommend silicone resin non-curing sealant.)
• Avoid wiring noise sources such as large capacity motors or power
Power supply.
5.2 Cable Selection
Only thermocouples can be used for the temperature sensor. A compensating
conductor (Refer to IEC584-3 Compensating Conductor for Thermocouples)
corresponding to the type of thermocouple is used. Use a wire with a cross
section of 0.5 mm
2
to 1.25 mm
2
(AWG 20 to 16). Use shielded cables when
wiring in locations susceptible to noise.
Use the following grounding cable for the shield.
n
Applicable cable (Vinyl insulated wire for equipment)
• Core: 0.5 to 1.25 mm
2
(AWG 20 to 16) end treatment
• For round crimp terminal M4
Use the following grounding cables.
