6 Insert VEGAMET 624 into the plug-in socket and screw it down
tightly
The electrical connection is finished.
Before setting up Ex versions, make sure the Ex separating chamber is
plugged on the left housing side (above the sensor terminals). T he
pins for type and Ex coding must also be inserted correctly.
Information:
l On the active input (terminal 1/2), VEGAMET 624 provides power
for the connected sensors. Power supply and measurement data
are transmitted over the same two-wire cable. This mode is
provided for connection of measuring transducers without sepa-
rate operating voltage (sensors in two-wire version).
l On the passive input (terminals 3/4), the sensors are not powered -
only the measured value is transmitted. This input is for sensors
with their own, separate operating voltage (sensors in four-wire
version). On a VEGAMET 624 in Ex version, the passive input is
not available due approval-technical reasons.
VEGAMET 624 • 4 … 20 mA/HART signal conditioning instrument 13
5 Connecting to power su pply
28969-EN-091116
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