METRIX 5485C HIGH TEMPERATURE VELOCITY TRANSDUCER SAFETY MANUAL

METRIX 5485C HIGH TEMPERATURE VELOCITY TRANSDUCER  SAFETY MANUAL 

The purpose of this safety manual is to establish the safety of high temperature flow rate of Metrix-5845C.

Sensor, and enable the equipment to be integrated into safety-related systems, in order to meet the requirements.

Comply with the requirements of appendix d of IEC 61508-2. The information contained in this safety manual is valid for this vehicle type.

 INTRODUCTION

The Metrix 5485C is a moving-coil velocity transducer, specifically designed for continuous use in elevated temperatures. A permanent magnet moving back and forth within a coil winding induces and electromagnetic field in the windings. This electromagnetic field is proportional to the velocity of oscillation of the magnet: the magnet shall be mounted on the vibration object to measure its velocity. A zero-friction coil suspension provides accurate, repeatable vibration measurements over a wide range of amplitude and frequency and is built to withstand the high-g environments and cross-axis vibrations typical of gas turbines. The coil bobbin is suspended by two non-twisting, circular spider springs that provide a clean frequency response. Purely viscous electromagnetic damping is employed and eliminates friction-prone air damping. This allows improved detection of small vibration amplitudes at low frequencies.   The sensor is available in two configurations: with integral armored cable or removable armored cable via a 2-pin MIL-style threaded connector. The case is constructed of stainless steel and its robust internals are hermetically sealed to ensure durability in the most hostile environments.  The product is approved for use in Zone 2 / Div 2 hazardous areas without use of intrinsic safety barriers.  It is also approved for use in Zone 0/1 and Div. 1 areas with use of an appropriate intrinsic safety barrier. The Metrix 5485C Velocity Sensor shall be used in application where there is a continuous vibration of the unit to be supervised and where the target is the vibration detection over the assigned threshold.

 REFERENCE

The following table shows the document useful the Safety Manual realization:

PRODUCTS FAMILY PRODUCTS FAMILY PRODUCTS FAMILY 

This Safety Manual is valid for each product listed in this paragraph. In the following table are listed the family models for the sensor 5485C with Removable Cable. Each sensor is differentiated one from the other by the internal coil resistance: the latter allows a differential measure sensitivity.