YSI 5000 User Manual
Page 54
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51
Calculation
Type
Description
Calculation
Error
(mg/L)
1a
instrument accuracy
(±0.001 x 7.26) + 0.01
±0.017
2a
probe background
±0.01 x (1- (8.24/9.09)) x 7.26
±0.007
2b
probe
nonlinearity
±0.003
x
7.26
±0.021
2c
temp. compensation
±(24-20) x 0.002 x 7.26
±0.058
3a
temp.
uncertainty ±0.01
x
7.26
±0.073
3b
pressure ±0.012
x
7.26
±0.087
Probable error can be determined by an r.m.s. calculation:
r.m.s. error = [.017
2
+ .007
2
+ .021
2
+ .058
2
+ .073
2
+ .087
2
]
1/2
= ±0.13 mg/L
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