Thermo Fisher Scientific Alpha DO 500 - Manual (Page 12)

Instruction Manual Alpha DO 500
6
2.3.2 Connecting Dissolved Oxygen Electrode
Refer the instruction sheet that comes with your Dissolve Oxygen electrode
to identify polarity (+ve and –ve) of DO wires.
1. Connect DO +ve wire to Pin 1 of SL1 connector
2. Connect DO -ve wire to Pin 2 of SL1 connector
2.3.3 Connecting Temperature Probe
For Automatic Temperature Compensated (ATC) readings, a 100
: Pt RTD
temperature probe (2-wire or 3-wire) can be connected to the Transmitter.
3-Wire Probe:
1. Connect PT100 compensate wire to Pin 5 of SL1 connector
2. Connect PT100 sense wire to Pin 6 of SL1 connector
3. Connect PT100 GND wire to Pin 7 of SL1 connector
2-Wire Probe:
1. Short Pin 5 & 6 of SL1 connector using a small piece of wire.
2. Connect PT100 sense wire to Pin 6 of SL1 connector
3. Connect PT100 GND wire to Pin 7 of SL1 connector