PCB Piezotronics RHM240A02 Installation And Operating Manual Download Page 7

 

 

 

 

 

ICP

 QUARTZ STRAIN SENSOR OPERATION MANUAL 

 

 2 

 

3.0  INSTALLATION 
 
 
 
 
 
 
 
 
 
 
 
 

Refer to the Installation Drawing supplied with this manual for 
specific  outline  dimensions  and  installation  details  for  your 
particular model. The specification is also included to provide 
details of the sensor

s characteristic properties.   

 
It  is  important  that  the  mounting  surface  is  clean  and  free  of 
paint,  oil,  or  other  coatings  that  could  prevent  the  proper 
transfer  of  strain  into  the  mounting  pads  of  the  sensor.  Poor 
surface  contact  may  affect  sensor  sensitivity  and  result  in 
erroneous data. Prior  to mounting,  it is recommended that the 
machine  surface  and  the  mounting  pads  of  the  sensor  be 
cleaned with acetone. This will maintain proper coupling with 
these mating surfaces and prevent slippage at peak strain. 
 
Connect  one  end  of  the  coaxial  cable  to  the  sensor  connector 
and the other end to the XDCR jack on the signal conditioner.  
Make  sure  to  tighten  the  cable  connector  to  the  sensor. 

DO 

NOT

 spin the sensor onto the cable, as this fatigues the cable

center  pin,  resulting  in  a  shorted signal and a damaged  cable. 
If the cable cannot be attached prior to sensor installation, the 
protective  cap  should  remain  on  the  connector  to  prevent 
contamination or damage.   
 
For  installation  in  dirty,  humid,  or  rugged  environments,  it  is 
suggested  that  the  connection  be  shielded  against  dust  or 
moisture with shrink tubing or other protective material. Strain 
relieving  the  cable/sensor  connection  can  also  prolong  cable 
life.  

Mounting cables to a test structure with tape, clamps, 

or adhesives minimizes the chance of damage.  

 
 

3.1 STRAIN SENSOR INSTALLATION 

 

Figure  3.1 

displays  the  sensor  mounted  using  the

 

supplied 

mounting  screw  to  a

  minimum torque of  10 N-m. 

Allow for 

the  static  component  of  the  signal  to  discharge  prior  to 
calibration.  Installations  not  preloaded  to  the  recommended 
value,  or  that  utilizes  a  screw  of  different  material  and/or 
dimensions  than  the  supplied  screw,  may  yield  inaccurate 
output  readings.  The  supplied  screw  allows  proper  strain 
transmission  to  the  sensor  while  holding  the  sensor  in  place. 
Properly  machined  holes  for  the  mounting  screw  will  ensure 

proper  vertical  orientation  of  the  sensor.  Refer  to  the 
installation drawing for additional mounting details.   
 
Consult a PCB applications engineer for calibration and output 
recommendations. 
 

 

 
 
 
 
 

Figure 3.1 Strain Sensor Installation 

 

CAUTION! 

Please read all instructions before attempting to 

operate this product. 

 

Damage to built-in amplifier  

due to incorrect power or misapplication is NOT 

covered by warranty 

 

 

Summary of Contents for RHM240A02

Page 1: ...ain Sensor 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 ma...

Page 2: ...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 3: ...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 4: ...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 5: ...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 6: ...model number s purchased The following pages give a brief description of the sensor series recommended mounting procedures operation and recommended calibration In addition to standard products PCB h...

Page 7: ...ould remain on the connector to prevent contamination or damage For installation in dirty humid or rugged environments it is suggested that the connection be shielded against dust or moisture with shr...

Page 8: ...ning to all ICP instrumentation Most of the signal conditioners manufactured by PCB have an adjustable current feature allowing a choice of input currents from 2 to 20 mA In general for lowest noise b...

Page 9: ...ortant to DC couple the entire system and not just from the sensor to the signal conditioner The system time constant is determined by the shortest time constant in the system For this reason the sign...

Page 10: ...allow this output voltage to decay 5 DTC s prior to making measurements in order to prevent baseline shift where an absolute zero is needed throughout entire monitoring process 10 0 MAINTENANCE The s...

Page 11: ...ngth x Height 0 67 in x 1 81 in x 0 6 in 17 mm x 46 mm x 15 2 mm Weight 1 6 oz 45 gm 1 All specifications are at room temperature unless otherwise specified In the interest of constant product improve...

Page 12: ...17 MJK 09 27 17 22493 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 consent...

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