Fluid Components International CMB - Manual (Page 16)

3.4.3 Density measurement
The attainable accuracy depends on the selected calibration type.
Without calibration no density measurement is possible and the empty pipe recognition
is not available!
Model without 3-Point 5-Point
CMB-B
CMB-C
CMB-D
5 g/l 3 g/l
CMB-E 5 g/l 3 g/l
CMB-F 5 g/l 3 g/l
CMB-G 5 g/l 3 g/l
CMB-J 5 g/l 3 g/l
CMB-K 5 g/l 3 g/l
Density accuracy
not available
no m
easurem
ent of d
ensity
3.4.4 Accuracy
Mass flow
Accuracy CMB-B to CMB-K ± 0.15% of actual flow + zero point stability (see Section 3.4.2 CMB
flow ranges)
Repeatability error ± 0.05% of actual flow (sensor with transmitter)
Additional measured values
Volume flow ± 0.2 % of actual value + zero point stability
Temperature ± 0.5 °C
Hysteresis n/a
Settling time
1 to 15 seconds
Startup drift 15 minutes
Long-term drift ± 0.02 % of upper-range value per year
Influence of ambient temperature ± 0.005 % per K
Influence of fluid temperature Compensated
Influence of fluid pressure For fluids: too small to be relevant
Page 16 of 106
CMB & CT OPERATING MANUAL