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Bender ISOMETER IRDH375 User Manual

Bender ISOMETER IRDH375
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IRDH375_D00124_05_M_XXEN/01.2020
ISOMETER® IRDH375
IRDH375B
Insulation monitoring device for
IT AC systems with galvanically connected
rectifiers and converters
and for IT DC systems
IRDH375: Software-Version D0183 V1.8
IRDH375B: Software-Version D0184 V1.8
Manual EN

Table of Contents

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Bender ISOMETER IRDH375 Specifications

General IconGeneral
BrandBender
ModelISOMETER IRDH375
CategoryMeasuring Instruments
LanguageEnglish

Summary

Important Information

How to Use This Manual

Guide on manual usage, symbols, and safety notes.

Technical Support, Service, and Support

Bender's contact and service offerings for product assistance.

Safety Instructions

General Safety Instructions

General safety guidelines and precautions for device operation.

Work Activities on Electrical Installations

Safety rules for personnel working on electrical installations.

Device-Specific Safety Information

Specific safety warnings and precautions for the ISOMETER® device.

Intended Use

Defines the proper application and usage scope of the ISOMETER® device.

Directions for Installation

Guidelines and precautions for correct device installation.

Function

Common Characteristics (IRDH375 and IRDH375B)

Shared features and capabilities of both IRDH375 and IRDH375B.

Additional Characteristics IRDH375B

Specific features and functionalities of the IRDH375B model.

Product Description

Detailed overview of the ISOMETER® IRDH375 and its applications.

Function Details

Explanation of the core operational principles and measurement processes.

Self Test

Procedures for performing automatic and manual self-tests for device verification.

Relay K3: Device Fault Alarm and EDS Common Message

The role of Relay K3 in signaling device faults and common messages.

Additional Functions IRDH375B

Extended functionalities specific to the IRDH375B model.

Commissioning Flow Chart

Connection

Wiring

Instructions for connecting the device's plug-in terminals and wiring precautions.

Wiring Diagrams with Coupling Devices

How to connect the ISOMETER® with various coupling devices.

Operation and Setting

Operating Features and Displays IRDH375(B)

Overview of the device's operational features, display, and keys.

Display in Standard Mode

Explanation of the device display information in standard operating mode.

Display in Menu Mode

Details on how the device display appears when navigating menu options.

Function Keys

Description of the function keys and their roles in operation and menu navigation.

Menu Structure and Menu Mode

Visual representation of the device's menu hierarchy and navigation flow.

Menu HISTORY INFO (IRDH375B)

Graphical layout of the HISTORY INFO menu for data retrieval.

Menu ISO SETUP: Basic ISOMETER® Functions

Setting alarm response values, relay principles, and fault memory.

Menu ISO ADVANCED: Extended Functions

Configuration for coupling devices, leakage capacitance, clock, and self-tests.

Menu COM SETUP: BMS Interface

Setting the BMS interface address, ISOnet function, and ISO monitor.

Menu PASSWORD

Procedure for activating and setting a password for device protection.

Menu LANGUAGE

How to set the display language for fault messages on the device.

Menu SERVICE

Menu for Bender service personnel for fault clearance.

Parameterization via Internet

Checking and setting parameters remotely using a PC and browser.

Serial Interfaces

RS-485 Interface with IsoData Protocol (IRDH375)

Details on the RS-485 interface using the IsoData protocol for IRDH375.

RS-485 Interface with BMS Protocol (IRDH375B)

RS-485 interface for BMS protocol, including network topology and wiring.

BMS Protocol (IRDH375B)

Details of the BMS protocol, Master/Slave principle, and device addressing.

Factory Settings

Technical Data IRDH375(B)

Data in Tabular Form

Tabulated technical specifications and values for the IRDH375(B).

Standards, Approvals, and Certifications

List of standards, approvals, and certifications relevant to the ISOMETER®.

Characteristic Curves

Graphs illustrating response times in relation to system leakage capacitances.

Ordering Details

Information on product types, nominal voltages, and article numbers.

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