ISOMETER® isoMED527

Insulation monitoring device for medical IT systems in accordance with IEC 60364-7-710 and IEC 61557-8
Complete monitoring of relevant parameters in medical IT systems, such as insulation resistance, leakage capacitance, impedance and total hazard current
Load and temperature monitoring of the IT system transformer
Integrated voltage measurement
Supports insulation fault location with ISOSCAN® EDS551

The ISOMETER® isoMED527 is an insulation monitoring device for un-earthed power supplies (IT systems) in medical locations. It measures the insulation resistance in medical IT systems with a mains voltage of AC 100…240 V. If the insulation resistance falls below a specified threshold, a device alarm is triggered automatically. The alarm threshold can be flexibly set within the range of 50 to 500 kΩ.

It is available in two device variants. In the basic variant, the insulation resistance as well as the transformer load and temperature of the IT system are measured. Alarm messages are output via the device LEDs and via the RS-485 interface Bender Smart Connect (BSC).

In the advanced version with Function Module A activated, mains leakage capacitance, impedance and mains voltage are also measured to enable a comprehensive assessment of the condition of the medical IT system. Individual thresholds for alarm messages can also be set for these parameters.

Measurement values and alarm messages are made available to other bus participants via the BSC. For display and alarm functions, the use of suitable signalling and testing combinations is recommended in order to meet the relevant standard requirements.

Once an insulation fault has been detected, a targeted insulation fault search can be initiated. Thanks to the use of innovative measurement technology, immediate fault detection is possible without the need for an additional test current generator. The use of the ISOSCAN® EDS551 insulation fault locator is recommended for localising the insulation fault.

The ISOMETER® isoMED527 is equipped with an NFC interface. This allows the device to be configured using the Bender Connect app, both when powered and when unpowered. In addition, device information can be read out, data backups created and function modules installed.

The maximum permissible mains leakage capacitance is 5 μF. Individual parameterisation must be carried out in each case to adapt the system to the on-site installation and operating conditions, in order to meet the requirements of the standards.

Questions? Contact us!

Insulation monitoring device for medical IT systems in accordance with IEC 60364-7-710 and IEC 61557-8
Complete monitoring of relevant parameters in medical IT systems, such as insulation resistance, leakage capacitance, impedance and total hazard current
Load and temperature monitoring of the IT system transformer
Integrated voltage measurement
Supports insulation fault location with ISOSCAN® EDS551

The ISOMETER® isoMED527 is an insulation monitoring device for un-earthed power supplies (IT systems) in medical locations. It measures the insulation resistance in medical IT systems with a mains voltage of AC 100…240 V. If the insulation resistance falls below a specified threshold, a device alarm is triggered automatically. The alarm threshold can be flexibly set within the range of 50 to 500 kΩ.

It is available in two device variants. In the basic variant, the insulation resistance as well as the transformer load and temperature of the IT system are measured. Alarm messages are output via the device LEDs and via the RS-485 interface Bender Smart Connect (BSC).

In the advanced version with Function Module A activated, mains leakage capacitance, impedance and mains voltage are also measured to enable a comprehensive assessment of the condition of the medical IT system. Individual thresholds for alarm messages can also be set for these parameters.

Measurement values and alarm messages are made available to other bus participants via the BSC. For display and alarm functions, the use of suitable signalling and testing combinations is recommended in order to meet the relevant standard requirements.

Once an insulation fault has been detected, a targeted insulation fault search can be initiated. Thanks to the use of innovative measurement technology, immediate fault detection is possible without the need for an additional test current generator. The use of the ISOSCAN® EDS551 insulation fault locator is recommended for localising the insulation fault.

The ISOMETER® isoMED527 is equipped with an NFC interface. This allows the device to be configured using the Bender Connect app, both when powered and when unpowered. In addition, device information can be read out, data backups created and function modules installed.

The maximum permissible mains leakage capacitance is 5 μF. Individual parameterisation must be carried out in each case to adapt the system to the on-site installation and operating conditions, in order to meet the requirements of the standards.

Questions? Contact us!

ISOMETER® isoMED527 – Insulation monitoring for medical IT systems

Features

Measured values

Insulation resistance
Impedance
Mains leakage capacitance
Total Hazard Current (according to UL1022)
Measurement of mains and conductor-to-earth voltages
Load current and temperature of the IT system transformer
Temperature monitoring using a PTC thermistor, bimetallic switch or PT100 sensor
Connection monitoring
Self-monitoring with automatic notification
Response time ≤ 5 s at C_e = 0.5 μF and R_f = R_an/2
Automatic device self-test with connection monitoring

Alarms

Alarms are indicated via LEDs (AL1, AL2) and an alarm relay
Adjustable response values for insulation resistance, impedance, leakage capacitance and total hazard current
Adjustable response value for load current in amperes or per cent %
Two programmable alarm relays: operating/standby current selectable
Adjustable temperature alarm when using a PT100 sensor
Temperature alarm (non-adjustable) for bimetal and PTC (DIN 44081)
Adjustable threshold value for connection monitoring PE > Ω
Start-up, response and reset delays adjustable

Display and operation

Status LEDs for operation, Alarm 1, Alarm 2
Test button (internal, external)
Simple configuration using the Bender Connect app via the NFC interface
Expandable with external signalling and testing modules (e.g. COMTRAXX® CP305); recommended for installation on or inside the control cabinet

Interfaces

RS-485 interface Bender Smart Connect (BSC)
NFC interface for parameterisation of the device in both powered and unpowered states using the Bender Connect app

Further details

Supply voltage AC 100…240 V
Supports insulation fault detection without a test current generator (only with ISOSCAN® EDS551)
Compact 2 DU housing (36 mm)

Applications

Medical IT system in accordance with IEC 60364-7-710, IEC 61557-8 and DIN VDE 0100-710