Metrohm 904 Titrando - Manual (Page 31)

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3 Installation
904 Titrando
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4 Program the barcode reader in such a way that the ASCII character
02 (STX or Ctrl B) is sent as the first character. This first character is
normally referred to as the "Preamble" or "Prefix Code".
5 Program the barcode reader in such a way that the ASCII character
04 (EOT or Ctrl D) is sent as the last character. This last character is
normally referred to as the "Postamble", "Record Suffix" or "Postfix
Code".
6 Exit the programming mode.
3.5 Connecting sensors
The measuring interface contains the following measuring inputs:
￭ Ind. for a potentiometric electrode (pH, metal or ion-selective elec-
trode)
￭ Ref. for a separate reference electrode
￭ Temp. for a temperature sensor (Pt1000 or NTC)
￭ Pol. for a polarizable electrode
￭ iConnect for an iConnect (measuring interface for electrodes with
integrated data chip, so-called iTrodes)
3.5.1 Connecting a pH, metal or ion-selective electrode
Connect the pH, metal or ion-selective electrode as follows:
1 Plug the electrode plug into the Ind. socket of the 904 Titrando.
Figure 12 Connecting a pH, metal or ion-selective electrode