BRAND Dispensette S Instrucciones De Manejo página 61

6 Error limits
20 °C
!
Ex
Error limits
Nominal volume ml
10
*A = Accuracy, CV = Coefficient of Variation
V
N
.
A
=
T
V
T
e.g.
V
N
V = 50% N
T
V = 10% N
T
*A = Accuracy, CV = Coefficient of Variation
The error limits in DIN EN ISO 8655- 5 are significantly lower. The maximum error for a single measure-
ment can be approximated from the sum of error limits EL = A + 2 × CV (for 10 ml: 50 µl + 2 x 10 µl = 70
µl).
997491
Error limits in relation to the nominal capacity (= maximum
volume) indicated on the instrument at equal temperature
(20 ºC/68 °F) of instrument, ambient environment and dis-
tilled water. Testing takes place according DIN EN ISO 8655-
6 with a completely filled instrument and with uniform and
smooth dispensing.
A* ≤
0.5
Partial volumes
The percentage values for A and CV are relative to the nomi-
A
N nal volume (V
(V ).
p
Volume
A*
≤
10.0 0.5
5.0 1.0
1.0 5.0
μl
± %
50
) and must be converted for partial volumes
N
μl
± %
50
50
50
NOTICE
6 Error limits
μl
CV* ≤ %
0.1 10
μl
CV* %
≤
0.1 10
0.2 10
1.0 10
Operating manual
61