Securityadviceandwarnings
2 User’sManual
1.1 Welcome
Please read this chapter carefully before starting work with a measuring transducer.
This chapter deals with important information and warnings that should be considered for safe
handling with a measuring transducer.
1.2 Introduction
This booklet contains instructions for installation and use of measuring transducer MT440.
Installation and use of a device also includes handling with dangerous currents and voltages and
shall be therefore carried out by qualified persons. The Iskra MIS 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 instrument is used for measuring or
supervision, please contact a person who is responsible for installation of such system.
1.3 Health and safety
The purpose of this chapter is to provide a user with information concerning safe installation and
handling with the product in order to assure its correct use and continuous operation.
It is essential that everyone using the product is 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.
1.4 Safety warnings and instructions for use
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,
• Proper connection of I/O modules.
Important: A current transformer secondary should be short circuited before connecting the
transducer.
Important: See Chapter 3.3 Electric connection for safety warnings regarding connection.
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