Hitec Luxembourg S.A. |
5, Rue de l’Église, L-1458 Luxembourg
www.hitec.lu | [email protected] | Tel.: (+352) 49 84 78 - 1 | Fax. (+352) 401303
File Name: HTCA_003-DADS-UserManual.docx
Document Type: End User Manual | Version date: 01/05/2010 | Last Printed: 15/02/2011
Page 9/81
Burettes Overview
Burette Modes
The HITEC application is able to work in different burette modes, depending on the
requirements and/or possibilities of the burette and the DADS terminal. Refer to
in Hitec Config manual for further information. The burette itself and the cable between
the DADS terminal and the burette determine the mode which can be supported. The DADS
terminal version 1.0 is not able to support the PULSE burette mode. The DADS terminal,
with version greater than 2.0 supports all burette modes.
Supported Burette Types
The following burette types are supported, and tested in the PULSE mode.
Brand
Model
Burette resolution
(pulses / 50 ml)
Remark
Schott
T 90/50
10 000
Equivalent to Brabender burette
Schott
Titronic Universal
8 000
Requires special EPROM.
Metrohm
Dosimat 685
10 000
Metrohm
Dosimat 765
10 000
Metrohm
Dosimat 865
10 000
The burette resolution can be set in the
of the HITEC Config application.
Other burettes with a closing contact reset input can be used in the burette RESET mode,
supported by DADS terminals. Other burette with 5VDC control inputs for reset and pulse fill
can possibly also be interfaced. For further information contact your HITEC products
distributor
Remarks
:
The
fill time
of the burette should be set to
90 seconds
.
Make sure all
tube connections
are tight. If this is not the case air could be sucked
in and the measurement would be falsified.
At least one burette purge should be done every morning before the measurements
are started. This is done to eliminate the air inside of the burette cylinder and hoses.
Use
PTFE seals
for the burette hoses as rubber is not necessarily resistant to DBP.
Keep the burette hoses
short
. Long tubes can cause vacuum during refill and thus
air bubbles being sucked into the system.
