Thermo Fisher Scientific Alpha pH 560 - Manual (Page 12)

Thermo Scientific Alpha pH 560 7
1. If the pH/ORP electrode has a BNC connector, remove the BNC
connector from the cable.
NOTE: Oakton Instruments offers an optional ‘BNC to Spade Lug
adapter’ (Order code: 05994-90) that can be used with pH/ORP
electrode without removing the BNC connector.
2. Strip the insulation of the cable so that the bare wires are exposed
enough for connection as shown in diagram below.
Figure 2–4. pH/ORP Electrode Cable
NOTE: Make sure to strip inner black layer (screen) to expose the
clear sheath.
3. Connect pH sensing wire to Pin 1 of J10 connector
4. Connect pH reference wire to Pin 2 of J10 connector
For Automatic Temperature Compensated (ATC) pH readings, a 100Ω
Pt RTD temperature probe (2-wire or 3-wire) can be connected to the
Controller.
3-Wire Probe:
1. Connect PT100 compensate wire to Pin 5 of J10 connector
2. Connect PT100 sense wire to Pin 6 of J10 connector
3. Connect PT100 GND wire to Pin 7 of J10 connector
2-Wire Probe:
1. Short Pin 5 & 6 of J10 connector using a small piece of wire.
2. Connect PT100 sense wire to Pin 6 of J10 connector
3. Connect PT100 GND wire to Pin 7 of J10 connector
If using a pH electrode with a PMP, connect the additional wire (PMP)
from the pH electrode to Pin 8 of J10 connector. This liquid electrical
reference wire is only used when the pH Controller is configured to
‘Symmetrical mode of operation’. Refer page 14 for details on
symmetrical mode of operation.
Connecting
pH/ORP
Electrode
Connection
Terminals
Connecting Temperature
Probe
Connect Potential
Matching Pin (PMP)