Omron CQM1 Operation Manual page 43

Wiring
24
4. If shielded cable is not used, the transmission distance is not to exceed
10 m regardless of whether power supply is common or wired separately
(using VCTF 0.75 mm
5. Locate transmission cables away from power cables and high-voltage ca-
bles to eliminate the effects of noise.
2
min.).
Section 3-2