PH-ORP Controller

PH-ORP Controller

PH-ORP Controller is suitable for accurate measurement of pH and redox potential in harsh climate and complex industrial environment.

Product features

• 128 × 64 dot matrix LCD with switchable Chinese and English display; IP65-rated for all-weather stable operation.
• Simple menu design ensures easy and convenient operation with graphical prompts and a clear, attractive interface.
• Adjustable software digital filtering and enhanced hardware anti-interference improve measurement stability in complex industrial environments.
• Supports universal power supply (85–260 VAC) or customized DC version (18–36 VDC).
• RS-485 digital interface with MODBUS-RTU protocol allows bidirectional read/write communication.
• Enables full remote control of the instrument.
• Supports two measurement modes: pH or ORP (oxidation-reduction potential).
• Equipped with a metal antimony electrode for use in environments containing hydrofluoric acid.

Parameter

• pH
• measuring range : -2.00~16.00 pH
• resolving power : 0.01 pH
• measurement accuracy : ±0.01 pH
• Input impedance : ≥1012 Ω
• ORP
• measuring range : -2000~2000 mV
• resolving power : 1 mV
• measurement accuracy : ±1mV
• Temperature
• measuring range : -10.0~130.0 С
• resolving power : 0.1 C
• measurement accuracy : ±0.3 C
• Temperature input : PT1000
• temperature compensation: Auto/manual

• Transmission current
• type of output : Two channels of 4 ~ 20 MA (corresponding range can be set)
• Current accuracy : ±1%FS
• Output load : Less than 500 Ω

• Switch control
• Function relay : 1 (can be set as cleaning or alarm function)
• Switching relay : 2 SPST relays
• Load capacity : 2.5A 230VAC

• Data transmission
• Transmission interface : One RS485 isolation voltage: 2500vrms
• Communication protocol : MODBUS-RTU (read-write bidirectional communication)

• Other parameters
• Working power supply : 85~260vac or 18~36VDC (optional when ordering)
• working temperature : 0~60°C
• Working humidity: Relative humidity < 90%
• Protection grade: IP65
• Installation method: Dial installation
• Overall dimensions: (HxWxD) 108 × 108 × 132 mm
• Opening size: 92.5 × 92.5 mm (positive tolerance)