DKS PD96, Руководство пользователя

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User manual for meter with U/I input PD96
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Figure 4.6. Connection of 3-wire current converters
Figure 4.7. Connection of voltage converters
Figure 4.8. Connection of power supply and relays
Contacts of relay outputs are not equipped with spark suppressors.
While use the relay outputs for switching of inductive loads (coils,
contactors, power relays, electromagnets, motors etc.) it is required to
use additional suppression circuit (typically capacitor 47nF/ min. 250VAC
in series with 100R/5W resistor), connected in parallel to relay terminals
or (better) directly on the load. In consequence of using the suppression
circuit, the level of generated electromagnetic disturbances is lower, and
the life of relay contacts rises.