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list(s)  accompanying  the  shipment.  A 
detailed  account  of  the  nature  of  the 
problem(s)  being  experienced  with  the 
equipment  should  also  be  included 
inside  the  package(s)  containing  any 
returned materials.   
 
A  Purchase  Order,  included  with  the 
returned  materials,  will  expedite  the 
turn-around  of  serviced  equipment.  It  is 
recommended  to  include  authorization 
on  the  Purchase  Order  for  PCB  to 
proceed  with  any  repairs,  as  long  as 
they  do  not  exceed  50%  of  the 
replacement  cost  of  the  returned 
item(s).  PCB  will  provide  a  price 
quotation 

or 

replacement 

recommendation  for  any  item  whose 
repair  costs  would  exceed  50%  of 
replacement cost, or any item that is not 
economically  feasible  to  repair.  For 
routine 

calibration 

services, 

the 

Purchase 

Order 

should 

include 

authorization  to  proceed  and  return  at 
current  pricing,  which  can  be  obtained 
from 

factory 

customer 

service 

representative.   
 

Contact  Information 

–  International 

customers  should  direct  all  inquiries  to 
their  local  distributor  or  sales  office.  A 

complete  list  of  distributors  and  offices 
can 

be 

found 

at 

www.pcb.com. 

Customers within the United States may 
contact  their  local  sales  representative 
or 

factory 

customer 

service 

representative.  A  complete  list  of  sales 
representatives 

can 

be 

found 

at 

www.pcb.com. 

Toll-free 

telephone 

numbers  for  a  factory  customer  service 
representative, 

in 

the 

division 

responsible  for  this  product,  can  be 
found on the title page at the front of this 
manual.  Our  ship  to  address  and 
general contact numbers are:   
 
PCB Piezotronics, Inc.  
3425 Walden Ave. 
Depew, NY14043 USA  
Toll-free: (800) 828-8840  
24-hour SensorLine

SM

: (716) 684-0001  

Website: www.pcb.com 

E-mail: [email protected]  
 
 
 
 
 
 
 
 

Summary of Contents for 421B3 Series

Page 1: ...ty regimen When in doubt about a calibration cycle a good rule of thumb is to recalibrate on an annual basis It is also good practice to recalibrate after exposure to any severe temperature extreme sh...

Page 2: ...rchase Order should include authorization to proceed and return at current pricing which can be obtained from a factory customer service representative Contact Information International customers shou...

Page 3: ...isclosure 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 O X O O O O O...

Page 4: ...e O O X O O 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 Indica...

Page 5: ...Series 421B3X Differential Input Charge Amplifier Installation and Operating Manual PCB Piezotronics Inc 3425 Walden Avenue Depew New York 14043 2495 24 Hour SensorLineSM 716 684 0001 Fax 716 684 0987...

Page 6: ...in 5 Structural Diagram 6 Ordering Information 7 Special Considerations 7 Use with High Temperature Sensors 7 ESD Warning Information 8 Warning 1 ESD sensitivity 8 Warning 2 ESD sensitivity 8 Caution...

Page 7: ...ss and low pass filters Furthermore RFI filters protect the input and output against radio frequency interference and other electromagnetic influences The amplifier is available in three variations as...

Page 8: ...oltage within the specified required supply voltage of the amplifier should be used for current mode operation The output of the CVLD receiver will be a voltage proportional to the V mA sensitivity of...

Page 9: ...ly calling it out The gain of the amplifier can be calculated using one of the following equations Note Current output in A always equals voltage output in mV For velocity output models the gain of th...

Page 10: ...put Iout 24V and common terminals The current output allows transmission over a maximum distance of 3 000 feet A CVLD power supply as described in the Wiring and Operation section is recommended for t...

Page 11: ...ifier Source capacitance is the input capacitance to the amplifier defined as transducer capacitance plus cable capacitance If the source capacitance is increased due to a long length of cable amplifi...

Page 12: ...amaged by high level voltage from electrostatic discharge ESD 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...

Page 13: ...PCB Stock Product refund 100 of the customer s purchase price for any PCB Stock Product with which the original purchaser is not completely satisfied Stock Product is defined to mean any product desig...

Page 14: ...If at any time for any reason you are not completely satisfied with any PCB product PCB will repair replace or exchange it at no charge You may also choose within the warranty period to have your pur...

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