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GE
Measurement & Control
RHM 12
Standard 1 inch Coriolis
Mass Flowmeter
The RHM 12 can measure flow rates up to 100 kg/
min (220 lb/min) with temperatures in excess of
350°C and pressures up to 331 bar. This model is
truly a versatile solution, manufactured by GE's
Rheonik mass flowmeter experts.
Applications
• General control • Dosing
• Batching
• Injections
Features
• Flow uncertainty down to 0.12%
• Density uncertainty down to 0.5%
• Repeatability better than 0.05%
• Unique torsion oscillator
• Typical measuring ranges from 1 to 100 kg/min
• Minimal flows as low as 0.75 kg/min
• Optimized solutions for batching operation
• Customization possible
• Extra compact design with minimal space
requirement
• Hazardous Area Approvals (ATEX, CSA, ...)
g
•Mixing
• Filling
Advantages
• Torsion oscillator design assures most stable and
basically drift free measurement and increased
signal to noise ratio
• Not sensitive to changes in pressure
• Longest life time and increased safety - low stress
in welds and increased wall thickness against
abrasion
• No moving parts, practically no maintenance
• Removable connection manifold available
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Summary of Contents for GE RHM 12
- Page 1 RHM 12 Standard 1 inch Coriolis Mass Flowmeter The RHM 12 can measure flow rates up to 100 kg/ min (220 lb/min) with temperatures in excess of 350°C and pressures up to 331 bar. This model is truly a versatile solution, manufactured by GE’s Rheonik mass flowmeter experts.
- Page 2 General Dimensions RHM 12 PM0/SM0 (parallel/serial manifold construction) Process Connection Face to face length (L) Order Code Standard Female Thread G 3/4" 4.72 Female Thread 3/4" NPT 4.72 Type removable manifold with PTFE seals and thread connection Process Connection Face to face length (L)
- Page 3 General Dimensions RHM 12 PF0 (parallel, sealless construction with flange connection) Process Connection Face to face length (L) Order Code Standard Flange DIN DN25/PN40 15.75 Flange DIN DN25/PN100 15.75 Flange ANSI 1" 150# RF/SF 15.75 Flange ANSI 1" 300# RF/SF 15.75...
- Page 4 General Dimensions RHM 12 SF0 (serial, sealless construction without dead spaces) (*) Process Connection Face to face length (L) Order Code Standard Sanitary 1" Triclamp, 13.78 DIN 32676 Sanitary NW20, DIN 11851 13.78 Type single path, welded measuring loops without seals and sanitary connection...
- Page 5 Pressure Rating RHM 12 The maximum pressure (pmax) of a sensor is determined by its weakest part. The weakest part can be the measuring loops (pmax indicated below) or the construction type (pmax indicated in the Basic Order Code section, last page) or the selected flanges / fittings (for pmax please see respective standard).
- Page 6 Performance RHM 12 Max Flow Rate Qmax = 100 kg/min (220 lb/min), Qnom (*) = 75 kg/min (165 lb/min) Uncertainty % DP (bar) Standard Models Flow Rate Uncertainty kg/min lb/min in % of reading 0.20 0.20 0.20 0.20 0.50 Flow Rate kg/min...
- Page 7 General Specifications RHM 12 Temperature Range • NT Models from -20 to +120°C (-4 to +248°F) • ET Models from -45 to +120°C (-49 to +248°F) • ET2 Models from -45 to +210°C (-49 to +410°F) • ET1 Models from -196 to +50°C (-320 to +122°F) •...
- Page 8 920-496A © 2013 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with GE.