Instruction manual

Instruction Manual αlpha-pH2000D
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2.2 Measurement and control system
A typical measurement system consists of:
• A pH/ORP process controller
• A pH/ORP combination electrode with integrated or separate temperature sensor
Pt100/Pt1000 or NTC300 thermistor.
• An appropriate pH or ORP measurement cable
• An immersion, flow or process assembly with or without a potential matching pin (PMP)
• A final control element such as pump or valve
• A chart recorder
Power Mains
(80 - 250 VAC)
0/4 - 20 mA
Measurement Cable
Housing and
Sensors
Chart Recorder
αlpha pH 2000D Transmitter