User’s Manual

iii

Security Advices and Warnings

Please read this chapter carefully and examine the equipment carefully for potential damages which might

arise during transport and to become familiar with it before continue to install, energize and work with a

measuring transducers iMT560, iMT550, iMT540, iUMT560, iUMT550, iUMT540 and Remote display

iRD500.

This chapter deals with important information and warnings that should be considered for safe installation

and handling with a device in order to assure its correct use and continuous operation.

Everyone using the product should become familiar with the contents of chapter »Security Advices and

Warnings«.

If equipment is used in a manner not specified by the manufacturer, the protection provided by the

equipment may be impaired.

PLEASE NOTE

This booklet contains instructions for installation and use of measuring transducer. Installation

and use of a device also includes handling with dangerous currents and voltages therefore

should be installed, operated, serviced and maintained by qualified personnel only. ISKRA

Company assumes no responsibility in connection with installation and use of the product. If

there is any doubt regarding installation and use of the system in which the device is used for

measuring or supervision, please contact a person who is responsible for installation of such

system.

Before switching the device ON

Check the following before switching on the device:

 Nominal voltage.

 Proper connection of auxiliary supply.

 Nominal frequency.

 Voltage ratio and phase sequence.

 Current transformer ratio and terminals integrity.

 Protection fuse - recommended maximal external fuse size is 6 A.

 Integrity and proper connection of earth protective terminals (where necessary).

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