EUTECH INSTRUMENTS ?lpha-pH500, Manual

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2.1 Power Supply Requirements (SL2 Position)
This transmitter requires a 12 to 24V DC power supply. Other Transmitters and/or a
chart recorder may be connected in series.
1. Insert positive loop wire from power supply to pin 1, tighten screw.
2. Insert negative loop wire to pin 2, tighten screw. This wire may be linked to
a chart recorder or to negative terminal of power supply.
Alpha pH500
Power Supply
Chart recorder
1
2
2.2 Connecting the Electrode and Temperature Probe (SL1
Position)
2.2.1 To connect the pH or ORP electrode:
The pH transmitter accepts any combination
electrode for pH or ORP measurements
Insulation
pH reference
Clear sheath
pH sensing
Screen
1.
Remove BNC connector from cable.
Two wires will be exposed.
2. Strip insulation, just enough to expose bare wires.
IMPORTANT: For pH/ORP sensing cable, remember to strip the inner black
layer (screen) and expose the clear plastic sheath.
1. Insert pH sensing cable into pin 1 of connector. Tighten screw.
2. Insert pH reference cable into pin 2 of connector. Tighten screw.
NOTE: Instead of removing the BNC connection, Eutech offers an optional
adapter (part number 05994-90 BNC to Spade Lug adapter) that can be
used.