Read this chapter carefully before you install and use the instrument.

This instrument has been designed and tested for Measurement Category I, Pollution Degree 2, in accordance with EN/IEC 61010-1:2001 and CAN/CSA-C22.2 No. 61010-1-04 (includ-ing approval). It has been supplied in a safe condition. The user of this instrument must have sufficient knowledge of it. This knowl-edge can be gained by thoroughly studying this manual, especially the sections on Safety Pre-cautions and Installation in this chapter.

This instrument is designed to be used by trained personnel only. Removal of the cover forrepairorrack-mountingofthe instrument must be done by qualified personnel who are aware of the hazards involved. There are no user-serviceable parts inside the instrument.