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ISOMETER® ISO685 Insulation Monitoring Device

Verified by manufacturer 21 days ago

iso685-D

Bender UK Variant:

Insulation monitoring device for unearthed a.c., a.c./d.c. and d.c. systems (IT systems).

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Application

  • a.c., d.c. or a.c./d.c. main circuits.
  • a.c./d.c. main circuits with directly connected DC components, such as rectifiers, converters, regulated drives.
  • UPS systems, battery systems.
  • Heaters with phase control.
  • Systems including switch-mode power supplies.
  • IT systems with high leakage capacitances.

Description

A range of insulation monitoring devices in accordance with IEC 61557-8 for IT systems. The devices are universally applicable in a.c., 3(N) a.c., a.c./d.c. and d.c. systems.

a.c. systems may include extensive d.c.-supplied loads (such as rectifiers, inverters, variable-speed drives).


Insulation monitoring devices continuously monitor the insulation resistance of IT systems (unearthed systems) and issue an alarm if the value falls below a response value.


The iso685 series uses the patented AMPPlus measurement method. This allows concise monitoring of modern power supply systems, also in case of extensive, directly connected DC components and high system leakage capacitances.


To obtain a measurement, the device has to be connected between the IT system and the protective earth conductor (PE). A measuring current is superimposed onto the system which is detected and evaluated by a measuring circuit. Insulation monitoring devices detect deteriorations of the insulation level at an early stage and in a reliable way.


Features and benefits:

Optimized maintenance:

  • Early detection and reporting of insulation degradation.
  • Automatic localisation of faulty current paths.
  • Optimized use of time and personnel resources.
  • Centralized information about the installation status.
  • Remote diagnosis via Internet/ Ethernet.

Increased fire protection:

  • Early detection of gradually developing insulation faults.
  • Minimizing fault arcs as a common cause of fire.
  • Separating areas prone to explosions and fire from the rest of the system via isolating transformers and monitoring these areas separately.

Improved economic efficiency:

  • Avoiding expensive and unplanned installation shutdowns.
  • Reducing time and staff expenses for maintenance.
  • Detecting weak points in installations.
  • Support of investment decisions.

Increased operational reliability:

  • No interruption to operation at the first fault.
  • No control malfunction in the event of insulation faults.
  • Electrical installations are kept at a high level of availability.
  • Monitoring electrical installations and loads even when not in operation.

Enhanced accident prevention:

  • Low touch currents in small-sized and medium-sized installations.
  • No malfunction in control systems of installations and machines due to an earth fault.


Higher earthing resistances permissible, for example, for mobile power supplies.

General information

Color

Yellow

Finish

Smooth

Material

Plastic

Shape

Rectangle

Length

110 mm

Width

108 mm

Height

93 mm

Warranty description

Two year

Uniclass

Pr_65_72_27_41 Insulation monitoring devices

Primary

Specification data - Insulation monitoring devices

Manufacturer

Bender UK.

Product reference

iso685-D (B91067010).

Standards

To EN 61010-1: 2010 + A1:2019 + A1:2019/AC:2019;
EN 61326-2-4: 2013;
EN 61557-1: 2007;
EN 61557-8: 2015;
EN 61557-9: 2015;
EN IEC 63000: 2018.

Certification

CE Marked.

Voltage

Supply voltage Us: 24–240 V a.c., 50–400 Hz; 24–240 V d.c.
Nominal system voltage Un: 0–690 V a.c. (AC-3(N)), 1–460 Hz; 0–1000 V d.c.

Guidance for specification option:

Nominal system voltage Un tolerance: +15%.

Mounting

DIN rail.

Technical characteristics, other

System leak capacitance: ≤1000 µF.
Response value R(an): 1 kΩ to 10 MΩ.

Communications

Web server; Modbus (TCP/ RTU); BCOM; BS; isoData.

Operating temperature

-25 to +55°C.

Guidance for specification option:

  • Transport -40 to +85°C.
  • Long-term storage -40 to +70°C.

Manufacturer guidance

Classification of climatic conditions acc. to IEC 60721 (related to temperature and relative humidity):

  • Stationary use (IEC 60721-3-3) 3K22.
  • Transport (IEC 60721-3-2) 2K11.
  • Long-term storage (IEC 60721-3-1) 1K22.

Classification of mechanical conditions acc. to IEC 60721:

  • Stationary use (IEC 60721-3-3) 3M11.
  • Transport (IEC 60721-3-2) 2M4.
  • Long-term storage (IEC 60721-3-1) 1M12.

Included features

Operating controls for direct operation of the device functions.
It cannot be combined with an FP200.

Display

High-resolution graphic LC display.

Sustainability data

Country of product manufacture

Germany

Material

Plastic

Manufacturing plant location

Recyclability

To be returned to manufacturer for recycling under WEEE regulations.

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