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Fluke Calibration molbloc-S Sonic nozzle calibration device
molbloc-SSonic Nozzle Flow Element is a high precision transfer standard intended for calibrating other transfer standards or process flow meters and controllers. This sonic nozzle calibration device is used with molbox1+ or molbox RFMterminals to extend the range of molbloc/molboxcalibration systems and deliver superior accuracy at medium and high flows. Existing molbox1 terminals with version 4.0 embedded software or later and all molbox1+ terminals can be used with molbloc-S.
- Covers ranges up to 5,000 slm in N2 and air
- Useable with molbox1+, or existing molbox1 and molbox RFM mass flow terminals and COMPASS software
- Proven critical flow venturi (sonic) nozzle operating principle supported by gravimetric calibration
- Minimal sensitivity to contamination
- Measurement uncertainty:
to .125% of reading with molbox1+
0.2 % of reading with molbox1
0.5 % of reading with molbox RFM - Air, N2, Ar, H2, He, N2O and other calibrations available, humid air density compensation supports use with ambient air
- Excellent rangeability (10:1 turndown), with molbox1+S, or other molbox models with vacuum.
- Redundant absolute upstream pressure measurement using both molbox absolute pressure transducers reduces uncertainty and increases reliability
- Integral gas temperature conditioning and measurement
- Continuous, real-time reading, as with traditional molbloc-L laminar element
- Can be fully automated