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NOTE: OVER TIGHTENING WILL DEFORM AND RENDER THE RFE DEFECTIVE.
It is advisable that at least one calibration point be checked after re-installing the
inlet fitting-See section (g).
IT IS NOT RECOMMENDED TO ATTEMPT TO DISASSEMBLE, OR REPAIR
MAXIMUM FLOW RATE SERIES MODELS 50 L/min, 100 L/min, 200 L/min,
500 L/min or 1000 L/min. DISASSEMBLY NECESSITATES RE-CALIBRATION.
7. CALIBRATION PROCEDURES
NOTE: REMOVAL OF THE FACTORY INSTALLED CALIBRATION SEALS AND/OR
ANY ADJUSTMENTS MADE TO THE METER, AS DESCRIBED IN THIS SECTION,
WILL VOID ANY CALIBRATION WARRANTY APPLICABLE.
7.1 Flow Calibration
OMEGA
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Engineering Flow Calibration Laboratory offers professional calibration
support for Mass Flow Meters, using precision calibrators under strictly controlled
conditions. NIST traceable calibrations are available. Calibrations can also be per-
formed at customers' site using available standards.
Factory calibrations are performed using NIST traceable precision volumetric
calibrators incorporating liquid sealed frictionless actuators. Generally, calibra-
tions are performed using dry nitrogen gas. The calibration can then be corrected
to the appropriate gas desired based on relative correction [K] factors shown in
the gas factor table - see Appendix 2. A reference gas, other than nitrogen, may
be used to better approximate the flow characteristics of certain gases.
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NOTE: REMOVAL OF THE FACTORY INSTALLED CALIBRATION SEALS AND/OR
ANY ADJUSTMENTS MADE TO THE METER, AS DESCRIBED IN THIS SECTION,
WILL VOID ANY CALIBRATION WARRANTY APPLICABLE.
,