A3-17 – Yokogawa YFGW710 User Manual

Page 37

A3-17

IM 01W01F01-01EN

External Antenna

Housing of YFGW710

Extension cable 2
Length: 10 m or 3 m

Extension cable 1
Length: 3 m or 1 m

Extension cable
Length: 3 m or 1 m

External Antenna

Arrester

Ground Wiring

Protect by
Self-bonding tape

FA0314.ai

Fig. A 3-13 Wiring of external antenna

Mounting of Arrester and Wiring

Mount an arrester between the extension cables and connect the grounding cable to the ground-

ing terminal of the arrester.
Connect the grounding cable to the grounding terminal on the main body. Class D grounding (the

third class grounding) with the grounding resistance of 100 Ω or less is necessary. Do not share

the ground with other devices.
l

Applicable Grounding Cable (Insulated wire for industrial equipment)

Examples:

• 600 V polyvinyl chloride insulated wires (IV): JIS C3307
• Polyvinyl chloride insulated wires for electrical apparatus (KIV): JIS C3316
• 600 V grade heat-resistant polyvinyl chloride insulated wires (HIV): JIS C3317
• Heatproof vinyl insulated wires VW-1 (UL1015/UL1007)

Wire Size

• Core: AWG14 to 13 (2 to 2.6 mm

)

Terminal Treatment

• Ring terminal for M4: With insulation covers