Bronkhorst Mini CORI-FLOW - Manual (Page 14)

BRONKHORST CORI-TECH B.V.
Error calculation:
Total error = accuracy reading ± [(zero stab./flow)x100] [% reading]
Example 1:
error at 10 kg/h reading at M14 for a liquid (= ±0.2% of reading)
zero stability error of M14 < 6 g/h; calculate with 6 g/h
Total error = ±(0.2% + (6/10000 * 100))% = ±(0.2 + 0.06)% = ±0.26 % (= ± 26 g/h)
Example 2:
error at 500 g/h reading at M13 for gases (= ±0.5% of reading)
zero stability error of M13 < 0.2 g/h; calculate with 0.2 g/h
Total error = ± (0.5% + (0.2/500 * 100))% = ±(0.5 + 0.04)% = ±0.54 % (= ± 2.7 g/h)
Example 3:
Total error of M14 (at constant temperature)
Total error M14 up to 30 kg/h
-4%
-3%
-2%
-1%
0%
1%
2%
3%
4%
0 5000 10000 15000 20000 25000 30000
Flow [g/h]
M
ax.
er
ro
r [
%
R
D
]
|0.2| %RD + |6| g/h
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