PCB Piezotronics IMI SENSORS 642A Series Operating Manual Download Page 14

 

PAGE 10 

 

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Warning 1 

 ESD sensitivity 

 

 

The power supply/signal conditioner should not be opened by anyone other than qualified service 

personnel.  

This product is intended for use by qualified personnel who recognize shock hazards and are familiar 

with the safety precautions required to avoid injury. 

Warning 2 

 ESD sensitivity 

This equipment is designed with user safety in mind; however, the protection provided by the equipment may be 

impaired if the equipment is used in a manner not specified by PCB Piezotronics, Inc. 

 

Caution 1 

 ESD sensitivity 

Cables can kill your equipment.  

High voltage electrostatic discharge (ESD) can damage electrical devices.  

Similar to a capacitor, a cable can hold a charge caused by triboelectric transfer, such as that which occurs in the 

following: 

 



Laying on and moving across a rug,  



Any movement through air,  



The action of rolling out a cable, and/or 



Contact with a non-grounded person.

 

 

 

The PCB solution for product safety: 

 



Connect the cables only with the AC power off. 



Temporarily 

short

 the end of the cable before attaching it to any signal input or output.  

 

Caution 2 

 ESD sensitivity 

 

ESD considerations should be made prior to performing any internal adjustments on the equipment.  

Any 

piece of electronic equipment is vulnerable to ESD when opened for adjustments.  Internal adjustments should 

therefore be done ONLY at an ESD-safe work area.  Many products have ESD protection, but the level of 

protection may be exceeded by extremely high voltage. 

  

Summary of Contents for IMI SENSORS 642A Series

Page 1: ...alized tests including sensitivity at elevated or cryogenic temperatures phase response extended high or low frequency response extended range leak testing hydrostatic pressure testing and others For...

Page 2: ...tion on particular operating steps The following symbols may be found on the equipment described in this manual This symbol on the unit indicates that high voltage may be present Use standard safety p...

Page 3: ...China RoHS 2 Disclosure Table Pb Hg Cd Cr VI PBB PBDE O O O O O O PCB X O O O O O O O O O O O X O O O O O O O O O O O O O O O O O O O O O O O O O X O O O O O O O O O X O O O O O O O O O O O X O O O O...

Page 4: ...O Wires O O O O O O Cables X O O O O O Plastic O O O O O O Solder X O O O O O Copper Alloy Brass X O O O O O This table is prepared in accordance with the provisions of SJ T 11364 O Indicates that sai...

Page 5: ...642 643 647 648 A Series Industrial 4 20mA Sensor Operating Guide with Enclosed Warranty Information 3425 Walden Avenue Depew New York 14043 2495 Phone 716 684 0003 Fax 716 684 3823 Toll Free Line 1 8...

Page 6: ...ents Introduction Page 3 General Features Dimension Drawing Page 4 Operation and Wiring Page 5 Standard Wiring Taking Measurements RV Option TO Option Installation Page 9 ESD Sensitivity Page 10 Warra...

Page 7: ...er to specific specification sheets for further details General Features Imbedded Piezoelectric Accelerometer for improved accuracy and frequency response Vibration range can be in Acceleration or Vel...

Page 8: ...Dimension Drawing 1 05 26 7 PIN B NEGATIVE 4 20 mA PIN A POSITIVE 4 20 mA 1 8 HEX ALLEN KEY REQUIRED MOUNTING STUD MODEL 080A162 SUPPLIED 1 4 28 UNF 2A 3 4 16 UNF 2A 1 41 35 8 7 8 22 HEX 1 98 45 7 1 2...

Page 9: ...gative input from the power supply to Pin B or Blue wire of the sensor Figure 1 wiring loop powered Figure 2 wiring loop powered DC source If using a standard DC power supply install either an ammeter...

Page 10: ...25 ips pk 0 25 ips pk 0 5 ips pk 12 0 0 25 ips pk 0 5 ips pk 1 0 ips pk 15 75 0 37 ips pk 0 73 ips pk 1 47 ips pk 20 0 5 ips pk 1 0 ips pk 2 0 ips pk Measured mA 643AX0 643AX1 643AX2 4 00 0 0 ips rms...

Page 11: ...n signal for further analysis Figure 3 RV wiring For integral cable sensors RED 4 20mA Positive BLACK 4 20mA Negative same as green GREEN RV Acceleration Negative same as black WHITE RV Acceleration P...

Page 12: ...mperature sensor monitors the environment internal to the sensor housing and is situated at approximately mid level Figure 4 TO wiring For integral cable sensors RED 4 20mA Vibration Positive BLACK 4...

Page 13: ...PAGE 9 SENSORS AND INSTRUMENTATION FOR MACHINE CONDITION MONITORING Installation Installation should be performed per the following detail drawing for best performance...

Page 14: ...ischarge ESD can damage electrical devices Similar to a capacitor a cable can hold a charge caused by triboelectric transfer such as that which occurs in the following Laying on and moving across a ru...

Page 15: ...ior to servicing at no charge Before returning the unit please consult a factory IMI applications engineer concerning the situation as certain problems can often be corrected with simple on site proce...

Page 16: ...ed IMI offers to all customers at no charge 24 hour phone support This service makes product or application support available to our customers day or night seven days a week When unforeseen problems o...

Page 17: ...e Polyurethane 7 All specifications are at room temperature unless otherwise specified In the interest of constant product improvement we reserve the right tochange specifications without notice ICP i...

Page 18: ...ski 09 26 10 9 2014 23929 PCB Piezotronics Inc claims proprietary rights in the information disclosed hereon Neither it nor any reproduction thereof will be disclosed to others without the written con...

Page 19: ...ALL MOUNTING SURFACES SEE ARROWS FIG 1 2 FIG 2 TIGHTEN THE MOUNTING STUD USING THE ALLEN KEY TORQUE THE MOUNTING STUD TO WITHIN 3 TO 4 FT LBS 4 1 TO 5 4 Nm FIG 3 THREAD THE SENSOR S HEX NUT ONTO THE...

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