ero electronic DPS - External Loads with very Low Holding Current; E.2 Analog Re-Transmission; Analog Re-Transmission Wiring

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E 1.2 EXTERNAL LOADS WITH VERY LOW HOLDING
CURRENT
It may happen that the current flowing through the snubber network,
when the contact is open, is sufficient to energize the external load
(normally a contactor).
A similar problem may occur when driving solid state relay with
the internal relay of the instrument.
The current flowing through the snubber network may keep the
voltage across the SSR higher than the cutoff level.
In this case it is better to remove the snubber network or to connect,
across the load, a resistor of appropriate value and power rating.
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+
LOAD
E.2 ANALOG RE-TRANSMISSION
Fig. 2.15 ANALOG RE-TRANSMISSION WIRING
NOTES : 1) for mA output the maximum load impedance is 500 Ω.
2) For V output the minimum load impedance is 5000 Ω.