F&F DMA-1 CT TrueRMS, Quick Start Manual

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1. Switch off power supply.
2. Install indicator on DIN rail.
3. Connect the indicator according to the connection diagram:
»
Connect the power supply of the indicator (230 V AC) to
terminals 5 and 6;
» The current transformer output is connected to terminals 2
and 8.
4. Switch on the power supply.
If the secondary windings of the measuring transformers
are open (e.g. during assembly) and a current flows thro-
ugh the measured circuit, a dangerous voltage may be
induced at the terminals of the measuring transformer.
It is absolutely necessary to protect oneself from such a
situation by switching off the power supply of measured
circuits or installing additional bridges short-circuiting
the secondary side of a measuring transformer.
The indicator is designed for current measurement using
current transformers with a rated output current of 5 A.
Current flow through the measuring circuit of the indi-
cator of a value higher than 6 A may lead to damage of
the indicator.
For increased safety, it is recommended that one side
of the current transformer be earthed as shown in the
connection diagram.
Mounting