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The information contained in this document supersedes all similar information that 
may be found elsewhere in this manual. 

  

 

Total  Customer  Satisfaction 

–  PCB 

Piezotronics guarantees Total Customer 
Satisfaction.  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  to  have  your 
purchase  price  refunded  in  lieu  of  the 
repair,  replacement,  or  exchange  of the 
product.    
 

Service 

–  Due  to  the  sophisticated 

nature  of  the  sensors  and  associated 
instrumentation 

provided 

by 

PCB 

Piezotronics,  user  servicing  or  repair  is 
not  recommended  and,  if  attempted, 
may  void  the  factory  warranty.  Routine 
maintenance,  such  as  the  cleaning  of 
electrical  connectors,  housings,  and 
mounting  surfaces  with  solutions  and 
techniques  that  will  not  harm  the 
physical  material  of  construction,  is 
acceptable. Caution should be observed 
to insure that liquids are not permitted to 
migrate  into  devices  that  are  not 
hermetically 

sealed. 

Such 

devices 

should  only  be  wiped  with  a  dampened 
cloth  and  never  submerged  or  have 
liquids poured upon them.   
 

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.     
 

Calibration 

–  Routine  calibration  of 

sensors  and  associated  instrumentation 
is  recommended  as  this  helps  build 
confidence  in  measurement  accuracy 
and 

acquired 

data. 

Equipment 

calibration 

cycles 

are 

typically 

established  by  the  users  own  quality 
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, 

shock, 

load, 

or 

other 

environmental  influence,  or  prior  to  any 
critical test.  
 
PCB  Piezotronics  maintains  an  ISO- 
9001  certified  metrology  laboratory  and 
offers  calibration  services,  which  are 
accredited  by  A2LA  to  ISO/IEC  17025, 
with  full  traceability  to  SI  through 
N.I.S.T.  In  addition  to  the  normally 
supplied  calibration,  special  testing  is 
also  available,  such  as:  sensitivity  at 
elevated  or  cryogenic  temperatures, 
phase  response,  extended  high  or  low 
frequency  response,  extended  range, 
leak 

testing, 

hydrostatic 

pressure 

testing,  and  others.  For  information  on 
standard 

recalibration 

services 

or 

special  testing,  contact  your  local  PCB 
Piezotronics 

distributor, 

sales 

representative,  or  factory  customer 
service representative.   
 

Returning  Equipment 

– 

Following 

these  procedures  will  insure  that  your 
returned  materials  are  handled  in  the 
most 

expedient 

manner

Before 

Warranty, Service, Repair, and 
Return Policies and Instructions 

Summary of Contents for 1402-12ADB

Page 1: ... LOAD CELL DUAL BRIDGE Installation and Operating Manual For assistance with the operation of this product contact PCB Piezotronics Inc Toll free 800 828 8840 24 hour SensorLine 716 684 0001 Fax 716 684 0987 E mail info pcb com Web www pcb com ...

Page 2: ... repair User servicing or repair is not recommended and if attempted may void the factory warranty Calibration Routine calibration of sensors and associated instrumentation is recommended as this helps build confidence in measurement accuracy and acquired data Equipment calibration cycles are typically established by the users own quality regimen When in doubt about a calibration cycle a good rule...

Page 3: ...ory customer service representative Warranty All equipment and repair services provided by PCB Piezotronics Inc are covered by a limited warranty against defective material and workmanship for a period of one year from date of original purchase Contact PCB for a complete statement of our warranty Expendable items such as batteries and mounting hardware are not covered by warranty Mechanical damage...

Page 4: ... O PCB板 X O O O O O 电气连接器 O O O O O O 压电晶体 X O O O O O 环氧 O O O O O O 铁氟龙 O O O O O O 电子 O O O O O O 厚膜基板 O O X O O O 电线 O O O O O O 电缆 X O O O O O 塑料 O O O O O O 焊接 X O O O O O 铜合金 黄铜 X O O O O O 本表格依据 SJ T 11364 的规定编制 O 表示该有害物质在该部件所有均质材料中的含量均在 GB T 26572 规定的限量要求以下 X 表示该有害物质至少在该部件的某一均质材料中的含量超出 GB T 26572 规定的限量要求 铅是欧洲RoHS指令2011 65 EU附件三和附件四目前由于允许的豁免 CHINA RoHS COMPLIANCE ...

Page 5: ...te 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 Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement of GB T 26572 X Indicates that said hazardous substance contained in at le...

Page 6: ... 06 in x 3 50 in 153 90 mm x 88 90 mm 8 Weight 21 lb 4 53 kg Mounting Thread 1 14 UNS 3B No Metric Equivalent Sensing Element Strain Gage Strain Gage Mounting Torque 1400 in lb 158 Nm Deflection at Full Scale Capacity 0 001 in 0 03 mm Electrical Connector PT02E 10 6P 2 PT02E 10 6P 2 All specifications are at room temperature unless otherwise specified In the interest of constant product improvemen...

Page 7: ...10 3 12X THRU n5 125 130 2 B C 1 14UNS 3B x1 37 34 8 45 90 n2 59 65 8 1 75 44 5 n6 06 153 9 81 20 6 1 63 41 4 CONNECTOR A PTO2A 10 6P CONNECTOR WIRING CODE TYPICAL PIN A EXC PIN B SIG PIN C SIG PIN D EXC PIN E N C PIN F N C CONNECTOR B DUAL BRIDGE ONLY 1202 1402 SERIES LOAD CELLS 1 SUPPLIED WITH MATING FASTENERS 1202 1402 SERIES BASES n2 59 65 8 n5 125 130 2 B C 3 8 24 UNF 2B x 88 12X 1 45 n6 06 1...

Page 8: ...ELECTRICAL INSTALLATION 5 5 1 Electrical Drawing Western Regional Std 5 5 2 Cable Grounding Considerations 5 6 0 CALIBRATION 5 6 1 Calibration Certificate Description 5 6 1 1 Measured Output 6 6 1 2 Hysteresis 6 6 1 3 Best Fit Output 6 6 1 4 Strain Gage Measurements 6 6 1 5 Shunt Calibration Standard Resistor 6 6 1 6 Static Error Band SEB 6 7 0 MOMENT COMPENSATION 6 8 0 FATIGUE OVERLOAD 6 9 0 SHUN...

Page 9: ...the parts under test have completed the planned fatigue test cycles 3 0 OVERVIEW Dual bridge fatigue rated load cells are specifically designed for repetitive testing Applications include material testing component life cycle testing and structural testing The load cells contain an extra bridge to be used either as a back up incase the primary bridge fails during a test or just for confirmation of...

Page 10: ...note that the performance of the load cell may be affected if the factory installed mounting base is removed or modified 4 2 Mounting Load Cell to a Standard Base or Custom Fixture If the load cell is to be mounted to a custom base or fixture it is necessary to consider the following 1 The thickness of the new base or fixture must not be any thinner than the original base supplied with the load ce...

Page 11: ...ector Protector 1 Remove the 4 40 x 1 4 button head cap screws from the connector using a 1 16 hex wrench as shown in Figure 7 2 Carefully pull the connector from the load cell Take care to not break or loosen any wire connections 3 Slide the connector protector 54823 02 behind the connector as shown in Figure 8 4 Apply a drop Loctite Threadlocker Blue 242 to the threads of the 4 40 x 3 8 socket h...

Page 12: ...m wiring may result in unstable or noisy signals A simple test with a voltmeter connected between the power cord ground and the structure on which the load cell is mounted can confirm that the structure has been properly grounded If the power cord ground and structure ground are not at the same potential it may be necessary to provide a secure structure ground perhaps by driving a copper rod and a...

Page 13: ...ls are adjusted such that the error due to eccentric loading is less than 0 1 per inch of offset Side loads moments and torque must be limited to avoid electrical or mechanical damage to the load cell The allowable extraneous loads are directly related to the rated capacity of the load cell Maximum side force allowed is 100 of the rated capacity for the load cell Maximum moment allowed is 100 of t...

Page 14: ...ation certificate and adjust the span or gain until the display reads the force value stated on the certificate 4 Repeat steps 1 3 to verify that a valid calibration setting has been obtained 5 If possible apply a known load to the measurement system to further verify that the calibration has been accurately set up 9 3 Estimating Shunt Resistor for a Given Load The following formula can be used to...

Page 15: ...bridge resistances A D excitation and B C the signal leads 9 Check bridge balance 10 Keep a record of your observations correct problems or contact PCB factory for assistance 11 2 1 Estimating Bridge Balance using an Ohm Meter A load cell that has been severely overloaded will exhibit a significant zero offset in the Wheatstone bridge It can be useful to estimate the bridge unbalance using a digit...

Page 16: ...e factory for any reason For calibration services if possible a copy of the purchase order covering the requested services should be included with the returned load cell 13 0 WARRANTY Standard warranty on dual bridge load cells covers parts and workmanship For full details refer to the Warranty Statement supplied with each load cell If the load cell is defective for reasons other than overloads re...

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