wtw pH 3300i, Operating Manual

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pH 3300i/3400i Operation
45 ba75682e02 03/2008
4.5.3 PC/external printer (RS 232 interface, pH 3400i)
Via the RS 232 interface, you can transmit the data to a PC or an external
printer.
Use the AK340/B (PC) or AK325/S (ext. printer) cable to connect the inter-
face to the instruments.
The data output automatically switches to the
RS 232 interface.
Warning
The RS 232 interface is not galvanically isolated.
When connecting an earthed PC/printer, measurements cannot be per-
formed in earthed media as incorrect values would result.
Set up the following transmission data on the PC/printer:
Socket
assignment
4.5.4 Remote control (pH 3400i)
The measuring instrument can be remotely controlled from a PC. This re-
quires the KOM pilot communication kit. It is available as an accessory.
The instrument is then controlled via commands that simulate keystrokes and
request the current display contents.
Note
A more detailed description is provided within the scope of delivery of the
communication kit.
Baud rate selectable between: 1200, 2400, 4800 , 9600
Handshake RTS/CTS + Xon/Xoff
Parity none
Data bits 8
Stop bits 1
1 CTS
2 RxD
3 Ground
4 TxD
1 2
3 4
RS 232
REC