1. Introduction

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.

2. Safety Precautions

All equipment that can be connected to line power is a potential danger to life. Handling re-strictions imposed on such equipment should be observed.

To ensure the correct and safe operation of this instrument, it is essential that you follow gener-ally accepted safety procedures in addition to the safety precautions specified in this manual.

The warranty commitments are rendered void if unauthorized access to the interior of the instrument has taken place during the given warranty period.

2.1. Caution and Warning Statements

CAUTION: Shows where incorrect procedures can cause damage to, or destruction of equipment or other property.

WARNING: Shows a potential danger that requires correct procedures or practices to prevent personal injury.

2.2. Symbols


Shows where the protective ground terminal is connected inside the instrument. Never remove or loosen this screw

This symbol is used for identifying the functional ground of an I/O signal. It is always connected to the instrument chassis.

Indicates that the operator should consult the manual.

2.3. If in Doubt about Safety

Whenever you suspect that it is unsafe to use the instrument, you must make it inoperative by doing as follows:

  • Disconnect the line cord.
  • Clearly mark the instrument to prevent its further operation.
  • Inform your local Pendulum Service Center.

For example, the instrument is likely to be un-safe if it is visibly damaged.