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Series 830/840/860 Instruction Manual Chapter 4 Maintenance
IM-83/84/86-H 4-15
Transducer Calibration
Calibration of Sierra’s flow meters and controllers requires a cali-
bration standard of at least equal accuracy and preferably an order
of magnitude of at least four times better than the transducer. Si-
erra’s Cal-Bench Automated Primary Calibration System is the
preferred method of calibration and is used at the factory for all
calibrations from 10 sccm up to 5600 slpm.
Sierra Instruments maintains a fully-equipped calibration labora-
tory. All measuring and test equipment used in the calibration of
Sierra transducers are traceable to NIST standards. Sierra is ISO-
9001 registered and conforms to the requirements of ANSI/NCSL-
Z540 and ISO/IEC Guide 25. If the flow body or electronics have
been damaged or you simply want to have the transducer re-
calibrated, contact the factory for return shipping instructions
Caution!
It is important that this
transducer be calibrated
only by qualified personnel.