Installing A Drying Tube (Optional); Error Limits - BRAND Titrette 4760141 Mode D'emploi

8 Installing a drying tube (optional)

8 Installing a drying tube (optional)

9 Error limits

20 °C
!
Ex
Error limits
Volume Partial
ml volume
ml
10' 10
5
1
25' 25
12.5
2.5
50' 50
25
5
* A = Accuracy, CV = Coefficient of Variation ** EL = Error Limit
On 10 ml and 25 ml instruments, the titration volume is shown in 1 µl increments; on 50 ml instru-
ments it is shown in 2 µl increments. From a titration volume of 20 ml, this changes automatically to
10 µl increments.
The drop size for the 10 ml instrument is approx. 20 µl, and approx. 30 µl for the 25 ml and 50 ml in-
struments.
58
Operating manual
Use of a drying tube, filled with a suitable absorbent (pur-
chased separately), might be necessary for moisture- and
CO
(See Accessories/spare parts)
a.
Seal the threads of the drying tube, the bottle and/or the bot-
tle adapter with PTFE tape.
Error limits in relation to the nominal capacity (= maximum volume) indicated on
the instrument at equal temperature (20 ºC/68 °F) of instrument, ambient environ-
ment and distilled water. Testing takes place according DIN EN ISO 8655- 6 with a
completely filled instrument and with uniform and smooth dispensing.
Bottle-top
burette Titrette®
A* CV*
± % ± µl %
0.10 10 0.05 5
0.20 10 0.10 5
1.00 10 0.50 5
0.07 18 0.025 6
0.14 18 0.05 6
0.70 18 0.25 6
0.06 30 0.02 10
0.12 30 0.04 10
0.60 30 0.20 10
- sensitive media.
2
Screw in the filled drying tube in place of the air vent
cap.
Bottle-top
burettes in accor-
dance with
DIN EN ISO 8655- 3
A* VC* %
µl ± % ±µl
0.3 30 0.1
0.6 30 0.2
3 30 1
0.2 50 0.1
0.4 50 0.2
2 50 1
0.2 100 0.1
0.4 100 0.2
2 100 1
NOTICE
Glass burettes
Class A in accor-
dance with
DIN EN ISO 385
EL**
µl ± µl
10 20
10 20
10 20
25 30
25 30
25 30
50 50
50 50
50 50
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