Acrel AITR Series User manual

163
Medical IT System Insulation Monitoring Devices
(Four-Piece Set)
Installation and Operation Manual V2.5
Acrel Co., Ltd.

Declaration
Please read this manual carefully before using this series of products, in which
the involved pictures, logos, symbols, etc. are all reserved by the Acrel Electric Co.,
Ltd. Personnel not inside the company shall not publicly reprint all or part of the
contents without written authorization.
Before using the IT system which is made up of this series of products, please read
the tips and precautions in this operation manual, and Acrel does not take responsibility
for personal injuries or economic losses caused by ignoring tips of this manual;
Transformers and related insulation monitors are professional electrical equipment,
and any relevant operation needs to be carried out by specialized electrical technicians.
Acrel does not take responsibility for personal injuries or economic losses caused by
improper operations of non-professionals.
The contents of the manual will be continuously updated and revised, thus the products
functions in this manual may inevitably have a slight discrepancy with the real objects
during the continuous upgrading process. Users should give first place to the purchased
real products, and can search www. acrel.cn to downloads or through sales channels to
obtain the latest version of the manual.

更改履历
Number
of times
Revision
date
Versions after
revision
Reasons for revision
01
2016.1.20
V2.0
On the basis of the original insulation monitoring
products, the contents of all five pieces of
products are integrated to replace the
instructions of each sub-product.
02
2016.10.25
V2.1
Some errors have been fixed
03
2016.11.7
V2.2
The overview added "products conform to Enterprise
standards Q31/0114000129C013-2016 IT System
Insulation Monitoring Instrument
04
2020.4.29
V2.3
Delete some discontinued accessories;
Add the installation dimension of AID10 cabinet
door
05
2020.6.11
V2.4
Add AID150 cabinet door installation diagram
06
2020.8.14
V2.5
Correct errors and omissions, adjust the wording
Note：

Contents
1 Introduction........................................................................................................................... 1
2 Function features................................................................................................................. 2
2.1 Function features of AITR series medical isolation transformer.........................2
2.2 AIM-M10 medical intelligent insulation monitor.........................................................2
2.3 Function features of AID10/150.......................................................................................3
2.5 Function features of AKH-0.66P26 current transformer...........................................3
3. Reference standard............................................................................................................. 3
4 Technical parameters........................................................................................................... 4
4.1 Technical parameters of AITR series medical isolation transformer.................4
4.2 Technical parameters of AIM-M10 medical insulation monitor...............................5
4.3 Technical parameters of AID10/AID150...........................................................................6
4.4Technical parameters of AKH-0.66P26 current transformer.......................................6
5 Installation and wiring..................................................................................................... 7
5.1 Shape and mounting hole size...........................................................................................7
5.2 Wiring method..........................................................................................................................9
5.3 Installation method...........................................................................................................11
5.4 Typical wiring diagram .............................................................................................................14
5.5 Considerations.....................................................................................................................15
6 Programming and application............................................................................................ 16
6.1 Panel description of AIM-M10..........................................................................................16
6.2 LED indicator instructions.............................................................................................16
6.3 Button function descriptions..........................................................................................17
6.4 Button operation descriptions.......................................................................................18
7 Communication protocol..................................................................................................... 23
7.1 Modbus-RTU communication protocol...............................................................................23
7.2 Introduction to the function code...............................................................................23
7.3 AIM-M10 parameter address table....................................................................................25
8 Typical applications......................................................................................................... 26

8.1 Application of four-piece set of medical IT system insulation monitoring
products in operating room.....................................................................................................26
9 Power on and debugging instructions........................................................................... 27
9.1 Wiring check.........................................................................................................................27
9.2 Common faults and eliminations.....................................................................................28
9.3 Settings and debugging.....................................................................................................29

Medical IT System Insulation Monitoring Devices
1 Introduction
Medical IT systems are primarily used in critical medical 2 locations such as operating rooms,
ICU/CCU intensive care units to provide safe, reliable, and continuous distribution of critical
equipment in these locations. Medical insulation monitoring products are developed by Ankore
Electric according to the special requirements of insulation resistance of distribution system in
medical 2 type places with many years of design experience in the power meter industry. It can be
used for isolating power system in various operating rooms and intensive care units in medical places,
realizing real-time monitoring of system insulation, load, isolation transformer temperature and
other operating conditions, as well as remote monitoring. Products comply with the enterprise
standard Q31/0114000129C013-2016 IT System Insulation Monitor provisions.
Insulation monitoring products of medical IT system (four-piece set) include AITR series medical
isolation transformer, AIM-M10 medical intelligent insulation monitor, AKH-0.66P26 current
transformer and AID series (AID10, AID150) external alarm and display instrument, etc., as shown
in Table 1.
Table 1 Medical IT System Insulation Monitoring Products
Type
Picture
Description
AITR series medical
isolation
transformer
AITR series isolation transformer is specially
used in medical IT system. The windings are treated
with double insulation and have electrostatic
shielding layer, which reduces electromagnetic
interference between windings. The PT100
temperature sensor is installed in the wire bag to
monitor the temperature of transformer. The whole
body is treated with vacuum invasion paint, which
increases mechanical strength and corrosion
resistance. The product has good temperature rise
performance and very low noise.
AIM-M10 medical
intelligent
insulation monitor
The AIM-M10 medical intelligent insulation monitor
is compact in size, easy to install, intelligent,
digital and networked, and is an ideal choice for
insulation monitoring of isolation power supply
systems in operating rooms, intensive care units
and other medical places.

AKH-0.66P26 current
transformer
The AKH-0.66P26 type current transformer is the
protective current transformer supporting the
AIM-M10 insulation monitor, of which the maximum
measurable current is 60A and the transformation
ratio is 2000:1. The current transformer is
directly fixed inside cabinet by screwing, and the
secondary side is leaded out by the terminal, which
is convenient to install and use.
AID series
external
alarm and
display
instrument
AID10
It is suitable for wall installation embedded in
operating room or nurse station and can monitor 1
AIM-M10 insulation monitor. It has sound and light
alarm function of insulation, overload,
overtemperature and equipment failure, and RS485
communication
AID150
LCD display, RS485 bus, centralized monitoring of
up to 16 SETS of AIM-M10 medical intelligent
insulation monitor data, sound and light alarm can
be remote. The AID150 can also monitor data from
multiple AIM-R100 residual current monitors.
2 Function features
2.1 Function features of AITR series medical isolation transformer
The transformation ratio between the primary and secondary windings is 1:1.
Double insulation treatment is adopted between the windings, and the electrostatic
shielding layer is designed.
The PT100 temperature sensor is installed in each wire packet to monitor the temperature
of the isolation transformer.
Used for the transformation of TN system into IT system (ungrounded system) after isolation
transformer.
2.2 AIM-M10 medical intelligent insulation monitor
Real time monitoring of IT system to ground insulation resistance, transformer load current,
transformer winding temperature, and give alarm indication when fault occurs;
The real-time monitoring system wire break fault, temperature sensor wire break fault and
function ground wire break fault, and give alarm indication when the fault occurs;
Relay output, LED indicator and other fault indication;

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

1500V, Test, measurement or monitoring equipment for protection test section 9: insulation fault
positioning equipment for IT systems ;
◆JGJ 16-2008 Code for electrical design of civil buildings ;
◆IEC61558-1: 2009 Safety of power transformers, power supplies, reactors and similar products
section 1: General requirements and tests ;
◆IEC61558-2-15: 2011 Safety of power transformers, power supplies and similar products section
16: Special requirements for isolation transformers for power supply in medical locations .
4 Technical parameters
4.1 Technical parameters of AITR series medical isolation transformer
Refer to Table 3.
Table 3 Technical Parameters of AITR Series of Medical Isolation Transformer
Type
AITR10000
AITR8000
AITR6300
AITR5000
AITR3150
Insulation
class
H
H
H
H
H
Protection
class
IP00
IP00
IP00
IP00
IP00
Power / voltage
/ current
Rated power
10000VA
8000VA
6300VA
5000VA
3150VA
Rated frequency
50-60Hz
50-60Hz
50-60Hz
50-60Hz
50-60Hz
Rated input
voltage
AC230V
AC230V
AC230V
AC230V
AC230V
Rated input
current
45.3A
36A
28.5A
22.5
14.2A
Rated output
voltage
AC230V/115V
AC230V/115V
AC230V/115V
AC230V/115V
AC230V/115V
Rated output
current
43.5A
34.7A
27.4A
21.7
13.7A
Inrush current
<12In
<12In
<12In
<12In
<12In
Leakage current
<200μA
<200μA
<200μA
<200μA
<200μA
No load input
current
1.359A
1.08A
0.855A
0.675A
0.426A
No load output
voltage
235V±3%
235V±3%
235V±3%
235V±3%
235V±3%
Short circuit
voltage
<6.9V
<6.9V
<6.9V
<6.9V
<7.5V
General

parameters
Fuse wire
80A
63A
50A
35A
25A
Primary winding
resistance
<55mΩ
<64mΩ
<80mΩ
<131 mΩ
<245mΩ
Secondary
winding
resistance
<45mΩ
<64mΩ
<80mΩ
<116 mΩ
<228mΩ
Iron loss
<150W
<105W
<107W
<77W
<55W
Copper loss
<230W
<200W
<170W
<125W
<120W
Efficiency
>96%
>96%
>96%
>96%
>95%
Maximum ambient
temperature
<40℃
<40℃
<40℃
<40℃
<40℃
No-load
temperature
rise
<36℃
<33℃
<31℃
<26℃
<22℃
Full load
temperature
rise
<65℃
<76℃
<67℃
<62℃
<55℃
Noise grade
<40dB
<40dB
<40dB
<40dB
<40dB
4.2 Technical parameters of AIM-M10 medical insulation monitor
Refer to Table 4.
Table 4 Technical parameters of AIM-M10 insulation monitoring instrument
Auxiliary
power supply
Voltage
AC220V
(±10%)
Temperature
measurement
Thermistor
PT100
Frequency
50/60Hz
Measuring range
-50—+200℃
Power
consumption
<5W
Alarm value range
0—+200℃
Insulation
monitoring
Measuring
range of
insulation
resistance
10-999kΩ
Alarm output
Output mode
1 relay output
Absolute
percentage
error
0—±10%
Contact capacity
AC 250V/3A DC
30V/3A
Alarm value
50—999kΩ
Environment
Operating
-10—+55℃