YSI 3200 - Manual (Page 9)

Introduction Section 1
REAR PANEL
The rear panel contains the connections for the power supply, cell, external temperature probe
and RS232 serial port. It also has a mounting post for the 3232 adapter as shown below.
Adapter mounting post
POWER SUPPLY CONNECTION
The power supply connection requires a 12 VDC power supply (included) with at least 300 ma
current. The polarity is marked on the instrument.
CELL CONNECTION
The connector for the cell is a 7-pin mini DIN connector and is marked with an arrow to show
proper alignment. Be sure to align the arrows when plugging in the cell.
YSI 3200 series cells utilize a mini DIN connector that plugs directly into the 3200. If, however,
you have a YSI 3400 series cell, the YSI 3232 cell adapter and a YSI 3220 or YSI 700 series
temperature probe will be required. The YSI 3232 cell adapter mounts on the post on the rear of
the 3200. It has a 7-pin mini-DIN connector and two binding posts. The mini-DIN connector
plugs into the 3200 cell socket and a YSI 3400 series cell (or equivalent) connects to the binding
posts.
RS232 CONNECTION
The RS232 connection is a standard DB9 connector. This connector allows the 3200 to be
connected to the serial port of a computer or serial printer. A standard straight (NOT a null
modem) cable is required for connecting to a computer. To connect to a serial printer, use a
straight 9-pin male to 25 pin female cable (see Appendix - B).
EXTERNAL TEMPERATURE CONNECTION
The external temperature probe connection is used for temperature measurement and
compensation whenever the conductivity cell currently connected does NOT contain an internal
YSI Incorporated Model 3200 5