MODBUS-RTU, which communicates with external alarm and display instrument, can monitor the
operation of IT system remotely;
Event record, including the time and type of the alarm, is convenient for the operator to analyze
the operation status of the system and eliminate the fault in time;
DC24 V power output function can provide instrument power for external alarm and display
instrument.
2.3 Function features of AID10/150
The insulation resistance alarm value, load current alarm value and transformer temperature
alarm value of the system can be set remotely.
When the system appears insulation fault, overload, transformer temperature over limit and
wiring fault, alarm and display instrument gives out the corresponding sound and light alarm,
and has the function of eliminating sound alarm.
Using advanced fieldbus technology, the remote monitoring function can be realized by real-time
data interaction with the insulation monitor.
Table 2 Functional Description of AID Series Products
Model
Selection Description
AID10
It can monitor one set of AIM-M10 insulation monitor and be used for installation by
embedding into wall.
AID150
It can monitor 16 sets of AIM-M10 insulation monitoring instruments to the maximum
and AIM-R100 residual current monitor which can be used for installation by embedding
into wall. It is fit for the centralized monitoring on operating room or ICU or other
medical sites.
2.5 Function features of AKH-0.66P26 current transformer
The maximum measurable current is 60A, and the transformation change ratio is 2000:1.
Work with the AIM-M10 insulation monitoring instrument to measure the load current of isolation
transformer.
3. Reference standard
◆
IEC 60364-7-710: 2002
Building electrical installations section 7-710: Requirements for special
installations or locations----medical locations
;
◆
IEC 61557-8-2014
Electrical safety of low voltage distribution system below AC 1000V and DC
1500V, Test, measurement or monitoring equipment for protection test section 8: Insulation
monitoring device for IT systems
;
◆
IEC 61557-9-2014
Electrical safety of low voltage distribution system below AC 1000V and DC