Energy-Saver Mode (Auto Power Off); Pause Function; Pc Interface (Optional) - BRAND Titrette 4760141 Mode D'emploi

6 PC interface (optional)

5.1 Energy-saver mode (Auto power off)

If work is interrupted for more than three minutes (factory setting), the instrument automatically
switches into standby mode. The display value is saved and reappears in the display after switching
back on manually. The user can adjust the amount of idle time before automatically switching off (see
Auto power off (APO mode), p. 65).

5.2 Pause function

If the instrument has not been completely primed, air bubbles appear in the titrating tube during titra-
tion. To prime the instrument during titration, liquid can be dispensed into a different receptacle us-
ing the Pause function without the display value changing.
Pause
1 x
6 PC interface (optional)
The instrument is available with an optional communication port (RS 232) (see 'Ordering informa-
tion').
The model with the port provides the following advantages over the standard model:
•
Transcription errors are eliminated when copying the primary data because the titration results
are automatically transmitted to the PC by double-clicking on the CLEAR button. This fulfills an
important GLP requirement.
•
All raw data is recorded simultaneously. With each data transfer, the burette sends the titrated
volume, the serial number of the instrument, the nominal volume and the adjustment value, as
well as the next scheduled calibration date.
The data transmitted by the instrument is treated as keyboard input from the PC. This universal input
format ensures that the instrument is compatible with all PC applications that accept keyboard in-
puts.
To connect the instrument to a USB port, please use a standard USB/RS 232 adapter.
Included in delivery are an interface cable (9-pin D-sub connector) and a CD (German/English, driver
software and a public RS 232 communication protocol). All information required for integration into
an existing database is available to programmers. In addition, the CD also contains a sample applica-
tion in XLS format as well as the user manual and the testing instructions.
56
Operating manual
a.
Press the Pause button one time.
ð
The Pause signal blinks.
b.
Prime the instrument, dispense liquid, etc. See Prim-
ing, p. 53.
c.
To end the Pause function, briefly press the Pause but-
ton again.
ð
The Pause signal disappears.
d.
Continue titration
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