Hanna Instruments HI 901 - Manual (Page 16)

2-10
SETUP
2.3.4.6 Electrical Connections
• Connect the pH electrode to the BNC connector (5).
• Connect the temperature sensor to the RCA connector (6).
• Connect the stirrer to the MINI-DIN connector (7).
• Connect the power-supply cable to the power supply connector (2).
Nr Function Type of Connector
1 Power switch
2 Power supply (115, 230 VAC, 50-60 Hz) IEC Power line connector
3 Earth connector 5 mm screw
4 Reference electrode Ø 4 mm banana socket
5 Connection for pH or ORP indicating half-cell BNC socket
or combination electrodes (pH/mV)
6 Temperature sensor RCA socket
7 Stirrer 4-pin mini DIN
8 Connector for expansion device 8-pin DIN socket
9 External PC keyboard 6-pin mini-DIN (Standard PS2)
10 External display Standard VGA display 15-pin socket
11 RS232 interface Standard DB 9 pin socket
12 Printer standard DB 25–pin socket