Metrix 5485C-007-020 speed sensor

 OVERVIEW

 The Metrix 5485C is a moving-coil velocity transducer, designed 

for continuous use in elevated temperatures up to 375°C.  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 to eliminate friction-prone air damping and improving 

detection of small vibration amplitudes at low frequencies. 

The sensor is available in two configurations: with integral ar

mored 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.

 FEATURES

 • Native velocity output – handles impulsive signals  

better than integrated accelerometers

 • Designed for elevated temperatures up to 375°C

 • Self-generating, no power required

 • Stainless steel housing

 • Eliminates friction-prone air damping

 • Analog performance delivers excellent resolution

 • Approved for use in hazardous areas

 • Available with integral or removable cable

 APPLICATIONS

 • Gas Turbines

 • Furnace Fans

 • Machines with continuous or intermittent surface  

temperatures  above 120°C