Metrohm 899 Coulometer - Manual (Page 32)

3.6 Connecting a balance
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899 Coulometer
3.6 Connecting a balance
As a rule, balances are equipped with a serial RS-232 interface. To con-
nect a balance, you require a 6.2148.030 RS-232/USB Box.
Figure 17 Connecting the balance via RS-232/USB Box
Proceed as follows:
1 Connect the RS-232/USB Box with a 6.2151.020 connecting cable
(USB A - USB B) on the USB (OTG) connector of the Coulometer.
You can connect the RS-232/USB Box either with via a USB hub or
using a 6.2151.100 USB MINI (OTG) - USB A adapter (see Chapter
3.7, page 24) on the Coulometer.
2 Connect the 9-pin plug of the respective balance connecting cable to
the connector RS-232/1. Consult the following list or contact the
scale manufacturer in order to find the correct balance connecting
cable.
Note
The parameters for the RS-232 interfaces on the 899 Coulometer must
match those on the balance (see "Editing the COM1 settings", page
69). Also check the manual for the balance.
The following table offers an overview of the balances that you can use
together with the 899 Coulometer and of which cable you will need for
connection to the RS-232 interface: