12 terminals of AIM-M10 insulation monitor should be reliably connected to IT system (which can
be connected in parallel to the output terminal of the isolation transformer) with 2×1.5mm
2
multicore copper wires, and the No.1, 2 terminals should be respectively connected to the on-site
equipotential terminals (or the grounding terminals in the isolation power cabinet) with two
independent 4mm
2
yellow-green grounding wires.
6) When AID150 centralized alarm and display instrument monitors multiple sets of AIM-M10 at the
same time, the communication line should be connected by hand (that is, after the communication
line of the previous meter is connected to the communication terminal of this meter, it is led out
from the terminal of this meter and connected to the communication terminal of the following table).
One matching resistance shall be connected between the two communication terminals at the head and
end of RS485 bus, and the resistance recommended and attached with the goods. The resistance is
120Ω. The No.5, 6 Terminals of AIM-M10 correspond to + 24 V and G respectively. It is recommended
to select 0.5 mm2 wire to supply power to alarm and display instrument.
5.5 Considerations
1) Medical IT system insulation monitoring and fault locating seven pieces of products should be
centrally installed in the isolation power cabinet except for AID series. If the field space is
too limited to apply the isolation power cabinet, the isolation transformer can be installed
separately, but should not be too far away from the insulation monitor and the field load.
2) The installation of wiring should strictly follow the wiring diagrams, which should preferably
use the pressure connection with the needle-type
fittings, and then insert into the corresponding
terminal of the instrument and tighten the screws to avoid the abnormal work conditions of instrument
caused by loose connection.
3) The grounding wire of the instrument and the transformer shall be reliably connected with the
equipotential terminals in the field. When applying the isolation power cabinet, it should be
connected to the grounding terminals in the isolation power supply cabinet, and then to the
equipotential terminals in the field.
4) The current input of AIM-M10 medical intelligent insulation monitoring instrument should use
a matching AKH-0.66P26 type current transformer. It is recommended to use pressure connection with
U-type indenters during wiring operation, and then connect to the CT terminal. Do not directly use
the bare head connection, for the considerations of reliable connection and easy disassembly. Before
removing the wiring, the CT primary circuits must be cut off or the secondary circuits must be short
connection.
5) Special reminder:
Any isolation transformer will have an impact current when it starts up, and too large impact current
may cause the
circuit breaker at primary side of the transformer difficult to disconnect or shut