Features

  • - Real-time monitoring of insulation resistance of ungrounded AC/DC systems
  • - Wide insulation monitoring range (1kΩ to 10MΩ)
  • - Adjustable operation mode considering system leakage capacitance (up to 2000㎌)
  • - Independent 4 Alarms and Relays for Subdivision of Insulation Monitoring
  • - Connection status automatic check function (Auto Self Test function)
  • - Measurement control function
  • - Quick View screen
  • - Trend function (year/month/week/day/hour)
  • - Evnet Record function (255 each System/Alarm)
  • - HMI application with enhanced visibility and convenience
  • - Industry standard Modbus communication capabilities
  • - Real-time monitoring of insulation resistance of ungrounded AC/DC systems
  • - Wide insulation monitoring range (1kΩ to 10MΩ)
  • - Adjustable operation mode considering system leakage capacitance (up to 2000㎌)
  • - Independent 4 Alarms and Relays for Subdivision of Insulation Monitoring
  • - Connection status automatic check function (Auto Self Test function)
  • - Measurement control function
  • - Quick View screen
  • - Trend function (year/month/week/day/hour)
  • - Evnet Record function (255 each System/Alarm)
  • - HMI application with enhanced visibility and convenience
  • - Industry standard Modbus communication capabilities

Measurement mode

Mode Ce,max Response
Value(Ran)		 Relative
Uncertainty		 Alarm Setting Range Etc.
Mode1 150μF 1kΩ ~ 10kΩ 20kΩ ~ 1MΩ : ±15%
1kΩ ~ 20kΩ : ±20%(at least 2kΩ)
1MΩ ~ 10MΩ : ±20%		 Ins. Alarm : 1kΩ ~ 10kΩ
Pre Alarm#1~3 : 1kΩ ~ 10MΩ		 Relative Uncertainty At Ce = 1 μF
Ins. Alarm Response Value ≤
Pre-Alarm Response Value
Mode2 1000μF 10kΩ ~ 1MΩ Ins. Alarm : 10kΩ ~ 1MΩ
Pre Alarm#1~3 : 10kΩ ~ 10MΩ
Mode3 2000μF 1MΩ~10MΩ Ins. Alarm : 1MΩ ~ 10MΩ
Pre Alarm#1~3 : 1MΩ ~ 10MΩ
Mode Ce,max Response
Value(Ran)		 Relative
Uncertainty		 Alarm Setting Range Etc.
Mode1 150μF 1kΩ ~ 10kΩ 20kΩ ~ 1MΩ : ±15%
1kΩ ~ 20kΩ : ±20%(at least 2kΩ)
1MΩ ~ 10MΩ : ±20%		 Ins. Alarm : 1kΩ ~ 10kΩ
Pre Alarm#1~3 : 1kΩ ~ 10MΩ		 Relative Uncertainty At Ce = 1 μF
Ins. Alarm Response Value ≤
Pre-Alarm Response Value
Mode2 1000μF 10kΩ ~ 1MΩ Ins. Alarm : 10kΩ ~ 1MΩ
Pre Alarm#1~3 : 10kΩ ~ 10MΩ
Mode3 2000μF 1MΩ~10MΩ Ins. Alarm : 1MΩ ~ 10MΩ
Pre Alarm#1~3 : 1MΩ ~ 10MΩ

Rating

Parameter Value
Rating System Ungrounded System(IT-System)
Nominal
Voltage(Vn)		 Stand-Alone AC 0...790V, DC 0...1000V
Coupler AC 0...1000V, DC 0...1500V
Tolerance of Un AC/DC +15%
Permissible Max
Nominal Voltage
(Vn, max)		 Stand-Alone AC900V, DC1150V
Coupler AC1150V, DC1725V
Frequency range of (fn) 42~460Hz
Permissible system leakage cpacitance(Ce) ~2000μF
Supply Voltage(Vs) AC/DC : 100~240V,   50/60Hz
Power Consumption < 25VA
Input(DI) Dry   (3EA: Self Test, Reset, Function)
Output(DO) AC230V/2A, DC24V/2A   Relay Output (4EA: Ins. Alarm, Pre Alarm#1~#3)
Insulation Resistance > DC500V 10MΩ
Insulation Voltage AC 2kV(1kV)/ 1m
Surge Voltage AC 6kV(3kV), 1.2×50us   , Standard waveform application
Overload
Capacity		 Current Circuit Rate Current×1.2 times : Continue
Rate Current×8.0 times : Under 2s
Voltage Circuit te Voltage×1.15 times : Under 3h
Rate Voltage×1.25 times : Under 10s
Fast Transient Disturbance Supply Voltage Port : A1- A2, A1/A2- PE : 4kV
Grid Connection Port : L1- L2, L1/L2- PE : 4kV
ESD : Electric Discharge 8kV : Air, 6kV : Contact
Temperature &
Humidity		 Use range -25℃ ~ 55℃
Storage range -25℃ ~ 70℃
Use Humidity range < 95% (no dew)
Elevation < 2,000m
Etc. A place not subject to abnormal vibration and shock
Applicable standard IEC61557-8, IEC60441
Size(mm) IMD1000: 140(W)×100(D)×81(H), IMD-CP15: 80(W)×100(D)×81(H)
Weight(g) MD1000: 650g, IMD-CP15 : 250g
Communication USB2.0 mini-B 1 Port : For user PC connection and F/W upgrade
RS-485 1 Port : ModBus RTU communication
(Option) Ethernet Converter RSTP : ModBus TCP communication
Certification KC, KOLAS
Parameter Value
Rating System Ungrounded System(IT-System)
Nominal
Voltage(Vn)		 Stand-Alone AC 0...790V, DC 0...1000V
Coupler AC 0...1000V, DC 0...1500V
Tolerance of Un AC/DC +15%
Permissible Max
Nominal Voltage
(Vn, max)		 Stand-Alone AC900V, DC1150V
Coupler AC1150V, DC1725V
Frequency range of (fn) 42~460Hz
Permissible system leakage cpacitance(Ce) ~2000μF
Supply Voltage(Vs) AC/DC : 100~240V,   50/60Hz
Power Consumption < 25VA
Input(DI) Dry   (3EA: Self Test, Reset, Function)
Output(DO) AC230V/2A, DC24V/2A   Relay Output (4EA: Ins. Alarm, Pre Alarm#1~#3)
Insulation Resistance > DC500V 10MΩ
Insulation Voltage AC 2kV(1kV)/ 1m
Surge Voltage AC 6kV(3kV), 1.2×50us   , Standard waveform application
Overload
Capacity		 Current Circuit Rate Current×1.2 times : Continue
Rate Current×8.0 times : Under 2s
Voltage Circuit te Voltage×1.15 times : Under 3h
Rate Voltage×1.25 times : Under 10s
Fast Transient Disturbance Supply Voltage Port : A1- A2, A1/A2- PE : 4kV
Grid Connection Port : L1- L2, L1/L2- PE : 4kV
ESD : Electric Discharge 8kV : Air, 6kV : Contact
Temperature &
Humidity		 Use range -25℃ ~ 55℃
Storage range -25℃ ~ 70℃
Use Humidity range < 95% (no dew)
Elevation < 2,000m
Etc. A place not subject to abnormal vibration and shock
Applicable standard IEC61557-8, IEC60441
Size(mm) IMD1000: 140(W)×100(D)×81(H), IMD-CP15: 80(W)×100(D)×81(H)
Weight(g) MD1000: 650g, IMD-CP15 : 250g
Communication USB2.0 mini-B 1 Port : For user PC connection and F/W upgrade
RS-485 1 Port : ModBus RTU communication
(Option) Ethernet Converter RSTP : ModBus TCP communication
Certification KC, KOLAS