PCB PIEZOTRONICS INC.
3425 WALDEN AVE.
DEPEW, NEW YORK 14043
3425 Walden Ave
Depew, New York 14043
N
o
68249
N
o
2
of
2
Rev. NR
ECO #: 47371
Servicing
Due to the sophisticated nature of the Microphone Systems and associated instrumentation provided
by PCB Piezotronics, user servicing or repair is not recommended and, if attempted, may void the
factory warranty. However, routine calibration of Microphone Systems and associated
instrumentation is recommended as this helps build confidence in measurement accuracy and
acquired data.
Repair
In the event that equipment becomes damaged or ceases to operate, arrangements should be made to
return the equipment to PCB Piezotronics for repair. User servicing or repair is not recommended
and, if attempted, may void the factory warranty.
Installation
Overview: The Microphone System must be mounted on low profile stands and clamps in order to be
put into service. Characteristics like location, ruggedness, amplitude range, accessibility, temperature,
and portability are extremely critical. Cabling: Care and attention to cable installation and cable
condition is essential as the reliability and accuracy of any measurement system is no better than that
of its weakest link. Due to the nature of vibration measurements, all sensor cables will ultimately
fatigue and fail. Good installation practice will extend the life of a cable, however, it is highly
recommended to keep spare cables on hand to enable continuation of the test in the event of a cable
failure.
Install Microphone system per drawing 68216.
Adjustment
The EX378XYYY series come assembled in a system and no user adjustments are possible.
However, routine calibration of sensors by the manufacturer is recommended as this helps build
confidence in measurement accuracy and acquired data.
Danger Areas (for
pressure-relief devices)
N/A – not a pressure relief device.
Training Instructions
Industrial sensors must be installed in Hazardous Locations by trained professionals according to
EN/IEC 60079-14 requirements.
Details on Safety of
Protection Category
Ex ia is “intrinsic safety”, which limits the energy of sparks and surface temperatures to safe levels.
Entity Parameters and
Limits (Values)
Temperature Range: -40
⁰
C to +80
⁰
C
Ui: 30V, Ii:100 mA, Pi: 0.75 W, Ci: 0, Li: 0.36µH
Special Conditions of
Use
Version Ex ia :
The apparatus must only be connected to a certified associated intrinsically safe equipment. This
combination must be compatible regarding intrinsic safety rules (see electrical parameters). The
apparatus shall be connected according to drawing 68216.
Essential
Characteristics of tools
fitted to the system (if
any).
N/A – No tools are fitted to the system.
Drawings and
Diagrams
65666, 65668, 65672, 65674
Other
Conforms To UL STDS 913, 60079-0, & 60079-11 and Certified To CSA STD C22.2 # 157
Note: Literature (such as the manual or marketing materials) describing the equipment or protective system must not
contradict the instructions with regard to safety aspects.
