AIM-M10 Medical Insulation Monitor
● Load and temperature monitoring of isolation transformer
● LED indicators: On, Insulation, Overload, Overtemp
● Alarm relay output
● Test button
● RS485 (MODBUS-RTU)
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AUX Power |
Voltage |
AC220V±10% |
Temperature monitoring |
Thermal resistor |
2 Pt100 |
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Power consumption |
≤5VA |
Measuring range |
-50~+200℃ |
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Insulation monitoring |
Resistance measuring range |
10~999kΩ |
Alarm value range |
0~+200℃ |
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Response value |
50~999kΩ |
Alarm output |
Output mode |
1 Relays |
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Relative uncertainty |
±10% |
Contact rating |
AC 250V/3A DC 30V/3A |
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Response time |
≤3s |
Environment |
Operating temperature |
-10~+55℃ |
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Permissible system leakage capacitance Ce |
≤5uF |
Transport temperature |
-25~+70℃ |
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Measuring voltage Um |
≤12V |
Storage temperature |
-25~+70℃ |
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Measuring current Im |
≤50uA |
Relative humidity |
5%-95%，No condensation |
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Impedance Zi |
≥200kΩ |
Altitude |
≤2500m |
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Internal DC resistance Ri |
≥240kΩ |
IP degree |
IP30 |
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Permissible extraneous DC voltage Ufg |
≤DC280V |
Rated impulse voltage / pollution degree |
4KV/Ⅲ |
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Load current monitoring |
Measuring Value |
2.1~50A |
EMC |
IEC 61326-2-4 |
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Alarm Value |
5~50A |
Communication |
RS485（Modbus-RTU) |
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Measuring accuracy |
±5% |
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Dimension
-
Front view
-
Side view
Application
Typical Solution
Wiring and Installation
1,2(FE,KE): Functional earthing
3,4(A,B): RS485 communication port
5,6(+24V,0V): DC power supply output
7,8(J1,J2): Relay output
11,12(L1,L2): IT system connector
15,16(I0,I1): Load current connector
17,18(T0,T1): Temperature sensor connector
The installation size of AKH-0.66P26 is shown in the following figure:
3,4(A,B): RS485 communication port
5,6(+24V,0V): DC power supply output
7,8(J1,J2): Relay output
11,12(L1,L2): IT system connector
15,16(I0,I1): Load current connector
17,18(T0,T1): Temperature sensor connector
The installation size of AKH-0.66P26 is shown in the following figure:
Operation and Display
LED indicator instructions
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Indicator light |
Instructions |
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On |
When the device is in normal operation, the indicator flashes, and the flickering frequency is about once a second. |
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Insulation |
When the insulation resistance exceeds the alarm setting value, or when FK is disconnected, the indicator flashes to alarm. |
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Overload |
When the system load current exceeds the alarm setting value, the indicator flashes to alarm |
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Overtemp |
When the transformer temperature exceeds the alarm setting value or the temperature sensor wiring is disconnected, the indicator flashes to alarm. |
Data settings
|
First menu |
Second menu |
Range and description |
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SET BUS |
Addr |
1-247 |
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Baud |
4800,9600,19200 |
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SET |
Temp |
0-200 |
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Ie |
14,18,22,28,35,45 |
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Ran |
50-999 |
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SET TIME
|
Year-month-day hour: minute |
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SET Code |
0000-9999 |
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SET Clr |
Clear the SOE |
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VER |
Firmware version information |
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Common problems
Make sure the connection is correct before the system is powered on. For common problems, according to the fault phenomena in the table below, targeted investigation can be carried out.
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Fault phenomenon |
Possible causes and troubleshooting |
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LCD display: FK break, Insulation indicator lighting |
Terminal 1 and terminal 2 of AIM-M10 are not reliably connected to LEB. Check the connection and make sure it is reliable. |
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LCD display: TC break, Overtemp indicator lighting. |
The terminals 17 and 18 of AIM-M10 are not reliably connected to the two ST terminals of the isolation transformer. Check the connection and make sure it is correct. |
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LCD display: insulation fault, Insulation indicator lighting |
At least one of the L1 and L2 wires in IT system has grounding fault, which can be restored to normal after removal. |
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The device can't light up. |
The working power supply of AIM-M10 is not connected properly. Check the connection of terminals 11 and 12 and make sure it is correct. |
Note: All the above faults should be checked by power off, and the wiring should be adjusted until everything is normal.
